US1994460A - Lubricating system and apparatus - Google Patents

Description

-March 19,1935. I 1.5mm 1,994,460

LUBRICATING SYSTEM AND APPARATUSy Filed June 15, 1928 e sheets-shea 1 INVENTOR v- 'BY l March 19, 1935. J. BlJuR LLIBRICATINGv SYSTEM AND APPARATUS Filed June 15, 1928 6 Sheets-Sheet 2 .i ,fw R 4 m 5 4 Z 7 5w--- :-ml-- I n* a w 5 n 04 #a U M :aa a .9 .W M a 9 4 .y #f 6 a/ l H- March 19, 1935. JfBlJUR LUBRICATING SYSTEM AND APPARATUS 6'Sheets-Sheet 3 Filed June l5, 1928 .lll

A rATTORN March 19, 1935. 1 BIJUR v1,994,460

LUBRICATING SYSTEM AND APPARATUS Filed June 15. 1928 6 Sheets-Sheet 4 "11111111111111111111lli/ln BY i A )Z/ March 19, 1935. 1.5mm' l 1,994,460

LUBRICATING SYSTEM AND' APPARATUS File June 15, 192s s sheets-sheet 5 March 19,v 1935. J. BIJUR LUBRICATING SYSTEM AND APPARATUS 6 Sheets-Sheet 6 Filed June Yl5, 1928 ensued io, 193s insisto y bnnnroa'rmo srs'rnlu earns l.iosephBijna', New llorir,

" Carch Corporation, a coraltlon of Deia-- N. Y., assigner to Aiuto Application tune l5, i928, Serial No. 285,526

' es o. ici. 1stvl vide an installation of the above character, serving to supply-clean lubricant to the chassisibearings substantially continuously and automatically and in accordance with requirements throughout.

I the movement of the vehicle and by which the feed of lubricant to the bearings is arrested at other timesand objectionable drainage or lossv from the system is avoided.

Another object is to provide anrinstallation of the above type in which, usiner 'the saine grade oi oil throughout "the changing seasons and r`vviti1r out the need for any special precautions or ad` y justmcnts, approximately the. same feed lto the bearings is maintained without over-oiling in hot A weather or underoiling in cold.

Another Aobject is .to provide an automatically operating lubricant. supply device or installation, which lends itself readily for use with a branched distributing and outlet control system, of the general typedisclosed and claimed in my prior -lPatent No. 1,632,771 of June 514, 1927.

Another object is to provide a supply` installa- -tion for feeding lubricant under pressure at substantially uniform rate into the distributing piping, said installation beingl wholly apart from the revolving mechanism of the engine or vehicle, yet functioning in the course oi normal vehicle operation by impulses automatically applied thereto -without the exercise oi conscious attention on. the

part of the operator. f

Another object is to provide a supply installation of the above type, embodying a pump guarded byy efficient ltering means and readily adjustable in eiective volume and in which the full pump pressure is rendered available for application to the distributing system. A

Another object is to provide a. supplytinstalla'- tion of the above type, wholly devoid of reduction gearing or other complicated mechanism, for efficiently utilizing energy derived .by the usul vi'- bration of the vehicle in normal operation thereof, to feed lubricant at the reguired rate under pressure, without objectionable increase of lubrication due to the greater vibrationin operation on rough roads or at high speeds. l

According to the inventio embodies a the supply device force pump by which successive small charges df lubricant are forced at short intervals,

to a distributing piping system of the character referred t0. having highly restricted calibrated outlets. The pipe line is thus maintained under `giving rise to much back pressure. -cosity hicle spring or shackle.

relatively constant and is determined by the vol- In summer, the oil the outlets without As the visof the oil increases, the escape through the outlets is accompanied by a rise in back pressure, until in c old weather, the maximum pressure attained in the pipe line might be i) t as great as that prevailing in the line in ser.

The pump is preferably embodied in a unitary structure at the bottom of a lubricant reservoir and may; either of the plunger or oi the dia im l ism u. type, l i

In the former type of construction, a plunger oi ll diameter is used, so that by the application oa small operating force thereto, pressure vexerted in the piping sysm may be caused. to rise to a hundred pounds or more per square inch, sufficient to maintain the cocy of emission when the oil has become quite viscousv in cold weather. Where a pump of the diaphra :u type is used of can area, say/in the order of one square inch, equivalent high pressures exerted by applying the small actuating'force ume delivered by the pump. being fluid, escapes through at the end of a lever having a lons pc arm and an extiemely short Work Among varioussources of power for pump actutory impulses may be applied to the pump from.

anl mi lated oscillating or swinging mass set into motion under -the vibration of the moving vehicle, or by direct pump to a vibrating part, such as the axle, ve- A pump oi minute effective volume is employed to give the proper charge under the high periodic frequency im.

posed by the vibrating operating agency. A feature of the invention is the oscillato oriiggling operating mass moimted to part; connected with the pump for operating the latter in one stroke thereof, and to apply its weight for effecting the return stroke of the pump.' through a resilient body.l such as 4a coil ppring; which preferably carries the mass. The lisglinc mechanical connection of the mass has an amplitude of vibration considerably 1 in excess of the stroke of the pump operating .element actuated thereby. rAppropriate, preferfor the latter,

ably adjustable stops are provided so that the full stroke thereof isexercised evenin and no excessive lubrication occurs in propulsion overrough roads. 2

stroke by the swing of said :nass iny opposite direction. Due rto the use of a long tightly fitting pump piston, and the relative speed of the upstroke thereof, leakage past the piston is negligible in comparison to the suction applied, so that lthe use of an inlet check valve and a dense filter interposed in the course of oil-ow from the reservoir to the pump is feasible. f

The operating mass may be mounted for reciprocation along the pump rod. The access of chassis lubricant to the bearing surface of the oscillating mass and subsequent drying of the oil or deposit of dust, tends to damp the free, vibration of the mass. Even though mounted exby appropriate barriers to prevent oil creeping a leaf spring, thereby swinging without the use of a sliding or king bearing. In the accompanying drawin mobile chassis installation, indicating diagrammatically'the position of the reservoirand the outlets,

'-' in section,

` embodiment,

verse cross-section taken on Fig. 2 is a cross-sectional view on a larger scale of a preferred form of drip^plug or other controlling outlet, ,i Y

Fig. 3 is aview similar to Fig. 1 showing another arrangement of chassis installation,

Fig. .4. is a cross-sectional view showing a desirable form of outlet or drip plug suitable for the embodiment of Fig. 3, g

Fig. 5 is a view in longitudinal cross-sectionA showing a reverse drip plug for the embodiment 'Fig. 6 is a fragmentary detailshowingiI mount for a reverse drip pl f Fig. 7-is anfragmentary detail s tion on a larger scale showing analternative c nstruction of restriction-pipe,

Fig. 8 is a ViewC in longitudinal cross-section of a preferred form of automatic lubricantreservoir, Fig. 8a is a detail section on-line lla-8a of Fig. 8,

Fig. 9 is a view in transverse cross-section taken on line 9 9 ofFig. 8, i Fig. 10 is a fragmentary detail view in transline 10-10 of Fig. 9, Fig. 11 is 'a view similarJ to Fig. 8 o f an alter-g native embodiment, r

Fig. l2 is atop plan view of the embodiment of Fig. 11 with parts b oken away and shown Fig. 14 is a fragmentary sectional `view on a greatly enlarged scale of a. further alternative Fig. 15 is a bottom plan view o! the embodif ment of Fig. 14., r,

l 1,994,460 i normal operation of the vehicle on smooth 'roads a larger -scale J Fig. 18 is a rear'elevation ofthe embodiment of Fig. 17 with parts broken away and in section, .19isatopplanoftheembodimentof Figs. 17 and 18, n Fig. 20 is a view in longitudinal cross-section of a still further embodiment of the invention, Fig. 21 is a sectional detail on line '2l-2l of Fig. 2U, and; f j

Fig. 22 is a detail sectipn on line 22-22 of Fig. 20. f f v Referring now to the drawings, I have shown diagrammatically at Fig. 1, the elevation of a motor vehicle embodying chassis bearings at substantial differences of level, the knuckle bearing.

20' or rear torque arm bearing 202, for instance, being at lowest level and the shackle'bearing 21',

the fan bearing 212 and the water pump bearing 213, for instance, being at various levels from 12 inches to 2 or 3 feet higher. 'I'he piping system 22 has an inlet 23 which and leads along structure of the vehicle to various bearings thereof. To prevent the drainage of lubricant through a lower bearing while the vehicle is idle, with the concomitant entry of air at a higher bearing,-relief or check valvesjare "The drip plug comprises a fitting 24 with a threaded end'25 for application at the bearing. High resistance to flow is determined by a. pin 26 nearly fillingl a longitudinal bore in the fitting. A valve 27 preferably at the outlet is pressed against its seat by a spring 28 which reacts against a cup 29. A strainer plug 30 of wool felt at the inlet of the fitting, provided with a backing'31 of wire 'mesh, intercepts any solid/ particles that might otherwise become lodged at the valve seat or in the restriction crevice determined by the pin. A suitable compression coupling C serves for connection of the pipe end'to the drip plug. The diameter of the pin determines the rating of the fitting, and in operation, the drip plugs, accordin'gly, proportion the distribution to the bearings under operating pressure. y

At the inlet to the pipe system,v I have diagrammatically indicated a source of lubricant and pressure R which may be of any of a wide variety of special constructions, illustrative examples of' which. are indicated in Figs.' 8 to 22 of the draw: ings to be hereinafter described. y

In Fig. 3 I have illustratively shown a type of chassis in which the diierence in level between various bearings 20', 2l', etc. isA quite'little, in the /order of but a few inches. For the lubrication of such installation, using theheavy lubricating oil found most suitable for the purpose and with substantial restriction of the drip plugs, the leakage of those of the drip plugs at nearly aconstant level is either entirely eliminated or reduced to negligible proportions, even though such drip plugs be devoid of check or relief valves. Accordingly, the 'drip plugs, .one of which is illustratively shown in Fig. 4, may be and preferably `aredevoid of the valves shown in Fig. 2. The drip may be at the dashboard'Dl bearing, maybe in the length of the riser conduit,

in place within the bore therefor, through the entire length of which the pin preferably extends, as shown. A strainer plug 36 is provided as in the embodiment of Fig. 2. The strainer thus not only prevents the crevice determined by the pin from clogging, but keeps the pin in place.

This satisfactory operation would however be impaired by leading lubricant from the system to one or more special bearings at level materially different from that of the majority of the bearlDgS.\7

If for instance the elevated fan bearing j is lubricated from the system, through a valveless drip plug as in Fig. 4, the head of lubricant in the riser leading thereto-might be sufllcient to cause slow leak or drainage through some or all 'of the lower' bearings, with consequent loss of lubricant, and disturbance in flow division thereafter.

On the other hand, a system including a drip ,plug of the type shownin Fig. 2 `at the one elevated bearing and drip plugs of the type of Fig. 4 at the various other bearings at lower level, would v be apt to become deranged, since an imperfection in the elevated dripyplug valve, might'permit entry ef air thereat, with resultant drainage, from therebelow. In such system, moreover, even though the special valve or valves thereof, be entirely operative, lubrication of the higher bearing 'would occur only if pressure rst built up in the distributing system to a valve, at least sumcient to open said valve. y liable lubrication of the-.elevated bearing unless pressure Awere applieduat least sumcient to open said valve and this is inconsistent with the. usel of low pressures in warm weather, as hereinafter described. ,i

According to my invention, a check valve of the loose or floating type is preferably disposed at the vehicle frame in the line to the bearing at special level, so that before any air could pass said valve into the parts of the system therebelow, all of the column of lubricant/beyond said valve would first i have to be sucked therepast.

Specifically, I have shown a tting 250 having a pipe-thread nipple 251 screwed into a socket 252 of a junction J which is bolted at 253 to the interiorof the channel frame F, and has pipe termi- 'nal sockets 254 of smaller diameter, to which the respective pipe segments 422' and 222 of the main are connected. The fitting 250 has a cylindrical' thread 255 at the outer end to which the lower extremity of the riser conduit 256 is coupled. This coupling connection may be of the same construction as that of Fig. 2,/including the hardened steel sleeve C' against which the coupling sleeve The check valve is preferably a disk 257 of light flexible oil-resistant material, arranged to rest on a seat 258 formed inthe base of the socket 259, which accommodates the coupling sleevesC. The hardened sleeve C' preferably has anopen spider construction 260, at the inner end presenting a 'central protrusion 261 adjacent the valve seat and limiting th deiiection of the valveffroin its seat. In'a socket at the nipple f extremityt 251 of the drip plug, which in this case,

is the 4inlet thereto. I` provide a strainempreferably a felt'strainer wad 262backed by a wire mesh cup 263 as in Fig. 2. The strainer is kept in position by a hofllow end plug264, lodged snugly in the strainer xsocket, engaging the end of the felt plug 262 at 'the periphery thereof and maintained in`-y position by rolling the edge 285 of the tting socket thereover.'

Cwhine the now restriction for the' elevated' This would result in unrethereabove, .but a substantial head of oil resting upon and .ably disposed at the 4a lubricant supply installatiom or at thebearing outlet thereof, I prefer to embody it in the same fitting as the valve just described. For this purpose,a calibrated restriction pin 266 asin Figs. 2 and 4, may bedisposed in a longitudinal bore' of the fitting, extending ,SIM

between the valve 257 and the strainer 262. The

pin has a head 267 at its lower end to prevent it from sliding upward and .possibly injuring the valve 257.

The drip plug described, thus feeds from the mount therefor, outward through a delivery pipe tive vblume of .54 c. c. per foot of length, equal to aboutften drops of the preferred chassis lubricant when at room temperature.

y In practice, the pipe lines are all completely filled with lubricant before the vehicle leaves the factory. Should the riser pipe become injured and have to be replaced in vehicle use, such empty riser, by reason of its very small volume, would promptly ll with lubricant, which' would then reach the bearing, following drip plug discharge, after but a short period" of vehicleuse.

'The small bore of pipe 256 in view of its substantial length, affords aiconsiderable resistance to How, and the flow retarding eect thereof can be readily compensated for by selection of a drip plug restriction of appropriate rating.

Instead of a. pipe of small diameter, as shown in Fig. 5, equivalent small volumewould be attained by the riser pipe 271 of larger diameter, filled with a snugly fitting core 272 of twisted strands of wire or cord as indicated for instance in Fig.` 7, the effective volume being determined by the interstices between the Wire ller and the pipe bore. e

vIn operation, any tendency of the distributing system to leak through one or` more of the outlets thereof, would result in corresponding tension on the light valve257, which would thus be urged to its seat 258. 'Ihe valve 257 is submerged in oil by the substantial length *or column, of lubricant thereby providing not only an oil seal tending to seat the valve. Substantially, all of the lubricant-within the length of the riser pipe would have to be drawn past the valve, by the suction engendered.v in an incipient leak, before air couldenter and this is practically precluded, so that leak is inhibited. The oil, moreover,- tends to stay in the riser pipe-due to the capillarity of its small effective bore. 4

The principle of lthe system shownoin Figs. y:i to 7 is, of course, applicable in relations in which more than one isolated bearing is at a levelpsubstanti'ally different. either higher or lower, than that .of the Ymajority of the bearings, and in which some bearing is higher and another bearing is lower than the remainder` of the bearings; the check valve being in each instance, preferinlet. endv of .the conduit leading to the higher or to the lower bearing, as the case may be. .Y

In Figs.' 8, 9 and 10 ofthe drawings', is shown embodying a pump of the jiggle-mass Voperated type. The

reservoir R has base and cover sections and '41 soldered together at their rims. In the bottom of the reservoir is mounted a lubricant pump u'nit comprising a casting, forging or machined piece 42 threaded at 43 into a .collar 44 extending through and soldered into the basev of the -reservoir. A central upstanding boss 45 of said unit constitutes the cylinder of a small-diameter pump having a close fitting metal pin plunger 46 longitudinally therethrough, connected by a ball and socket joint 47 to a vertical pump operating rod 48 guided at its lower end in a corresponding bore 49 at the top of boss 45 and extending upward through a guide bushing 50 in the cover of the reservoir.

The pump rod has a collar 65 near its upper end riveted thereto as at 66 and this collar has a slide bearing in the bushing 50.

'I'he unit has a cage 51 for an inlet check valve 52 retained against its seat 53 bya coil spring 54 which reacts against 'a closure plug 55. A transverse bore 56 near the lower end ofthe unit provides communication from the check valves to the lower end of the pump cylinder and also com-l municates with a check valve 57 similar to valve 52 but arranged to open under pump pressure, in order to establish communication with the outlet 23 which leads to a piping system which is shown in Figs. 1 to 4. Illustratively, the outlet valve 57 extends in a horizontal cage and the outlet23 extends through the bottom of the unit.

The operating parts are protected from orl other solid particles in the oil by a iilter ring 58 preferably of dense wool fe'lt encircling the pump boss 45 and lodged within an annular basin in the unit and above the valves 52 and 57. The outer periphery of the felt ring is pressed by a split ring 59 against a unitary peripheral ledge 60 in the unit. The inner periphery of the felt ring is similarly pressed inward by a split ring 61 about the boss 45. The entire area of the felt is maintained effective for ltering purposes, by means of a backing sheet 62 of wir'e mesh, provided with appropriate spacing ridges 63. Foreffective apL plication of the pressure, through the split rings A59 and 61, Washers 64 of metal are pressedthereby into the upper face of the felt.

In. the construction shownf the jiggling instrumentality comprises a. metal plate 67 secured to collar preferably by Hanging.` over the upper edge of said collar thereagainst. To the upstanding outer, edge 68.01' plate 67 is bolted at 69 the lower end of an upstanding leaf spring 70,I to the upper end-of which is bolted at 71 the downturned edge 72 of a second horizontal metal plate 73. An inertia mass 74 is secured by screws 75 against the lower face of plate73 and at the outer end thereof. `This mass, as'shown, comprises a' metal block 74 having a pair of .integral heelpieces 76 straddling the upperend of the rod 48 and adapted to engage at their upper faces, a nut adjustably .threaded'upon thefex tremity` of the pump rod 48. P late 73 is bifurcd to provide a -slot '1s throughwhich adjust- Yment ofthejnut may coil spring 79 encircling` the rod 48 is preferably b`e conveniently effected. A

interposed betweenthe mass and the nut to ease the shockin the upward stroke of the mass and an upturned leaf spring 80 in plate 67 similarly eases the shock of the` downward stroke of the mass 74. "'*The mass andv the yielding mount' therefor, preferably occupy-a generally rectanguiar space andcare enclosed in a corresponding rectangular-box or cover 81 diametrically across the ton of the reservoir and bolted thereto at 82;

lseats in the bushing.

. that to which the plate 67 and has a, stop nut 88 thereover, for lim- 10 iting the rise of the plate 67 preferably to a stroke in the order of. 11; inch. With a pump plunger of l, inch diameter, the eifective pump charge would thus be in the order of about one the pump stroke may be adjusted. To prevent small pivotal displacement of the plate 87 and drop. By adjustment of nuts 88, thelength of 15 the jiggle mass assembly, about the rod 48, a'

stud 89 in the top of the case extends into a. cm'- responding small hole in-the plate 87 near one of 2o the ends thereof, as shown'. Y

Inv the operation of the vehicle over ordinary roads, smooth orvotherwise, the mass 74 will oscillate continuously with the ilexure of the leaf spring 70'. In an upward strokel of sumcient-am- 25 plitude, the heels 76 of the mass will lift the pump piston rod 48 vthrough the nut 77 and the interposed spring 79. With the rod 48 will rise the collar 65 which is riveted thereto. 'Ihe entire yoke made up of the plates 67 and 73 'and the ao intervening leaf spring .79 is thus raised until it is arrested by the impact of plate 67 thereof against nut 88. The pump piston is thereby cor respondingly raised and draws in a corresponding minute charge of lubricant and the inlet valve 52.

The weight of the mass 74 and the inertia in 'its downward swing` under the return of the stressed leaf spring 70 tend to propel the pump past the nner 5a, a5

rod downward and to discharge the pump vuntil40 the collar 65 has reseated on bushing 50, as

shown in Fig. 8. Any lubricant within the upper part of the boss 45,' will pass back into the reservoir through ports 45' and only the lubricant in the small diameter is forced into `the pipe line.

To prevent sticking of collar 65 against bushing 50, the collar is undercut at its lower face, and

the ilange thus formed is interrupted to provide upon which` the collar 50 illustratively three lugs 65' The pump operating device has no bearings Yto wear or to require lubrication. Thus, the mass is so sensitively supported, that it will oscillate bore for plunger 46 45 through a. substantial stroke' much greater thanw55` pump plunger is limited. In the up-stroke, momentum is, accordingly, accumulated in the mass, before the impulse thereof is applied to the plunger rod, 'and in the down stroke, theresilience of the spring assists the 60 weight of the mass to similarly enhance then effectiveness -of the pump discharge stroke.-

In 'order to minimize. variation in pumping efiect due to road inequalities, I arrange that the, small bumps occurring at frequent intervals on a good road should asnearly as possible be as effective to causeupstrokes of the piston as are the larger bumps of a bad road.` By arranging l that themass 74 should be sensitive and by lim- 7 iting the maximum stroke of the' pump to avery small lift, such small lift will occur witlrconsiderable frequencyeven on smooth roads. Where the upward swing of uthe vehicle happens to coin' c ide withthe upward swing of the mass, the mo 75 mentum imparted to the latter is sufiicient to lift the piston.

The amplitude of vibration of the sensitive mass is considerable even when the vehicle is moving slowly along a smooth and level road, more than' sumcient to cause the limited short stroke of the pump. On rough roads and at greater speeds, the mass mayswing through a path of wider amplitude, but the pump stroke may be neither longer nor much more frequent. Only the cushioned impact of the mass against spring '19 and spring 80 will be increased.

Were the mass rigidly attached to the plunger rod, there would be little or no lubrication, as 'no eective oscillation would occur on smooth roads. On rougher roads, lubrication would be spasmodic and irregular and occur substantially only when the mass is jounced up, as a conse- Lcluence of travel over a rut. Y

The pump plunger being oi minute diameter, say '11g inch, or yof a cross-sectional area, roughly .004 square inches, va weight of only one pound will produce a pressure of 250 pounds per square inch uponthe-Voil-iilled pipe line, assumingthat" the substantially oil-filled pipsystem and the drip plugs impose such high resistance' to the lubricant iiow as to permitthat pressure to be developed.

Due` to the use of a long tightly fitting pump piston and the relative speed of the up-stroke thereof, leakage past the piston is negligible, and the suction is eiectively applied to open valve 52 and to flex the filter 58.4 The mass functions throughout in effecting pump discharge, except only for the relatively .short intervals during which the quickly executed suction strokes occur."

Where the vsame grade oi pil ^is employed,

`throughoutthe year,'its viscosity in severe win- .ter weather is likely to be lat least 100` times as great as in normal summer heat. With the use 'of afpump, suchV as that lusty described, which forces' frequent small charges, in theA order of a drop or less, of lubricant into thesystern, the

pressure in the with increase pipe linewill vary in a direct ratio. in resistance to flow of `the oil.

n Withl highly viscous oil, as Y"in severe winter weather, the pressure will rise to a value in the order of 100 times as great as when the oil is of `apprise the user ofthe need lfor refilling the,

low viscosity. p Accordingly, the range of pressure in the system may be from 0.5 to 3' pounds in warm summer weather` to 50 to 500 vpounds in winter. In the system of Figs. 3 and 4, where no `relief valves are employed, the effective pressure at each outlet will depend' closely on the resistance or vscositypf the oil. In the system' of Figs. 1 and 2, embodying relief valves, the lat.L

ter should' seat under light4 pressure, suilicient both to prevent ingressof airand to prevent es-l cape of lubricant under the relatively small differences of head usually found.` -With the pump capacity suitable to the bearings, the restriction of the drip'plugsrsh'ould be such that evenA with the thinnest' oil provided, the pressure in the pipeline should materially exedthat seat- Aingthe valves.l i y AEven though thesystem be operated for prolonged periods, with an `empty reservoir, the pump'wouldjnot force air into the pipe system, since vair would readily leak about the packingless pump-plunger, back into the reservoir. Preferably, a visible oraudible signal is provided to reservoirF f V In the modieform of l'igs. -11 and 12 is. shown a pump unitin which the -lubricant is drawn upward past the iilter disk` 9,0". The latter is pressed against a shoulder'91 in the lower face of the pump unit 92, by means of theA ilange 94 of a closure cap 93, which compresses the'rim of the felt .-y -The intake valve 95 is arranged above the nlter and immediately below the pump. plunger 96 while the outlet valve extendsv laterally therefrom as at 9'?. The pump plunger 96 I protrudes above the cylinder boss 96' therefor, so that noenlarged 'bore for the plunger rod 103 is required in said bess.

The lubricant is ladmitted from the reservoir R to a cavity 98 within the closure plug and below the felt'strainer, by way of a Awell or passage 99 communicating through ports 100 immediately below the felt, to an annular space 101 about the flange 94, which latter has a plurality of perforations 102 through which the lubricant enters the cavity 98. In the suction stroke of the pump, 'lubricant is, accordingly, drawn upward past the strainer 90 and the intake valve 95 into v the pump cylinder. The arrangement of filter disclosed, has the advantage that dirt or sediment intercepted by the lower,y surface thereof, will drop therefrom into the bottom of the plug 93 wit-hout tending to clog the lter. The illter disk is conveniently removable and replaceable, as will be apparent. y

In the present embodiment, I have illustrated another type of mass-actuating means for the pump. The pump piston rod 103 here'extends through a bushing 104 in the cover of the reser-V voir and has mounted near the upper end thereof, a hexagonal sleeve 105 of hardened,steel.` Enq circling said rod is a metal mass 106 having bushfings 107 in the bore thereof, preferably also of Vhardened steel,l Withliding nt on the rounded` edges of ythe hexagonal sleeve. Rigidly crimped turn of which rests the flange 112 of the mass 106, the length `of which is tapered. to avoid in, terference with the turns of the spring. A metal washer 113 encircling the threaded outer end of the rod 103 is pressed by means ofj'nuts 114 against the upper end of the hardened hexagf onal sleeve 105. A metal strap 115 is preferably secured 5by screws 116 `'to thetop of the reservoir and has a central rounded screw stud 117, which serves as a stop for the upper end of the piston. 'I

103. Stud 117 may be screwedinward or outward by turning nut 119 to `adjust .the'length of the pump stroke," and the lock nut 119' prevents the stop from shifting or loosening. Preferably a hood 115' held in place by nut 1118 encloses the oscillating mass and the strap 115 to protect these parts from dirt and water. .l L

The washer 108 serves not only as thesupport for the spring 111 and mass 106 and the meansg fortransmitting the impulse of said mass to the pumpfbut performs the additional function of preventing the creepage pf oil from the piston rod or from thev interior of the reservoir to the surface o f the hexagon rod bearing 105. Damping of the movement of the mass due to a dust film adhering to the oily hexagon bearing105 isl thus avoided. Preferably, the bushing 104 is providedwith a gland V120 backed by means of a' cap 121. for further security mprevenung the i .75

escape of'any lubricant to thehexagon sleeve.

. A coil spring 122 .encircling the above screwed thereon.

the washer 108, serves as a cushioning stop to prevent too vigorous impact of the mass thereagainst.

The operation is analogous to that.of the embodiment of Figs. 2 to 10. The mass in its upstroke will gain momentum, and lift the washer 113 and with it, `the piston rod 103' and the attached plunger 96, until the upper end of the rod beco es arrested at the lower rounded end of the sere stud 117. In the return stroke,'the 'weight of the lmassimi is transmitted through the spring 111 and the washer 108 to cause the pump. 96 to discharge.

In the present embodiment, as in that-previously described, the excursions of the mass, are of' range considerably wider than the stroke of the piston, the latter vbeing limited by the contact of the piston rod with the stop 117, at one 'end and by the contact of the washer 108 with the bushing 104 at the return.

In the'embodiment of Fig. 13 is shown a modification in whichA a. sliding mass -is also employed. The latter is completely enclosed to keep chassis oil from the sliding surface, for reasons pointed out in the description oi the embodiment of Figs. 8 and 9. By venclosing the mass, the same may be disposed within the lubricant reservoir R2, as shown. The pump unit may be like that of Fig. 8, or that of Fig. 11. l

The mass 125 has bushings 126, which in this case, may encircle the ordinary pump rod 122.4

The mass rests on a" coil spring 128 supported upon the lower cup 129 of the weight enclosing casing. Cup 129 has a bushing 131 crimped thereto, encircling the piston rod` 127 and secured thereto by a rivet 132. The upper cup 130 of the enclosure is soldered at its rim 133 to the lower cup 129,' and also' has a bushing 134` crimped thereto and secured by a cross pin 135 to the rod 127'near/the upper end thereof. 1 Preferably,'the lubricant tight enclosure has a small charge of a light lubricating oil 136, such as watch oil therein. t

'Ihe upper end of the piston rod preferably extends through a bushing 137 crimped in-place `about the rim of a corresponding hole in the reservoir" cover, and enclosed within a cap 138 upper extremityof the piston rod 127 is locked in position by across pin 140 and normally rests upon the bushing 137.

'lhe operation will be" obvious, but it may be briefly noted that in its upstroke, the mass 125 will contact the bushing 134 and lift the piston rod127 untilthe upper end of the latterstrikes the cap 138. In the subsequent discharge stroke,

\the weight of,l the mass 125 reacts througlithe 75 eeoftheunit 140 byaclamppiece 148pttaehed spring 128, cup 129, bushing 131 and piston rod 137 to depress the pump plunger, the latter stroke being limited by the engagement of the` nut 139 with the upper surfaceof thebushin'g 137. The cap 188 is able, as will be apparent to determinedhe'l oi'thepistonstroke. 1

influssi. 14, 15 and 1s is shown anotheraminciment on the general principlefof the embodiments above described, but utilizing. a dial phragm instead" of a plunger pump.

imit140isattadhedtotheb0ttomoftheoilres- BvdrRandhasalter 141 withabacking 1'44 of wlre'mesh lodged in a corresponding 145 at tneumerra of the unit and locked in place by asplit ring 146. The periphery o! a circular meliaphragm l47isclampedagainst thelower The lpllilllll A nut 139 threaded upon the to the unit by screws 149. The inlet valve is lodged in-a. corresponding axial valve cage inthe unit 140 between the filter 141 and the diaphragm 147,-while the outlet valve 151 .extends 'radially of theunit. A

The diaphragm 14': is'centrauy rivetedto a downwardly'extehding rod 152, the rivet reactingagainst a pair of metal plates 153 contacting opposite faces of the diaphragm to prevent eitcessive! exure of the central region thereof. The rod 152 is guided in a sleeve 154 cast as an integral part with the annular clamp construction. i

The operating mass 155 is confined in the outer 'cylindrical conformation 156 of a sheet Ametal channel lever 157. A disk 158 is forced into they lower open end of the cylindrical conformation and a bolt 159 through the web 160 of the chan'- nel, the mass 155` and the disk 158 maintains these parts as a rigid unit. As shown, the web' of .the channel lever slopes so that the depth of the channel decreases toward the pivot end of the lever, the 'mount of which will be described belowI The mass is encircled by a coil spring 161, which rests in a corresponding socket 162 on the thrust transmission or operating lever '163. The transmission lever 163 has mounted at-its inner end, a pair of gudgeon pins 164, which are supported in corresponding bearings 165 in the casting 148. The two gudgeonlpins 164 are secured by anchor plates 166 and 167 respectively integral therewith, which are fastened to the operating lever 163 by rivets 168 extending transversely therethrough.

I'he inner ends of the flank plates 157 of the mass carrying lever -have screwed thereto as at 169 bearing plates 170 which are mounted upon the outer endsof the gudgeon'pins 164. -'I'he pump actuating impulse is transmitted from the operating lever 163` to the rod 152,'l

through a pair of links 171 against the sides of the' operating lever 163 and accommodated in the space 172 left by the correspcndingcurvature ot the gudgeon anchor plates. The lower pivot of each of thelinks 171' at lthe pin 171a is but a small fraction of an inch (see the enlarged detail Fig. 16a) beyond and tothe right of the center of the gudgeon pin 164 in order to 'provide a relatively enormous power multiplicationsay oi4 250 to 1, between fthe long work arm and the minute power arm of the operating lever 163.

Y Preferably a bracket 173 is secured to the reservoir R3 and. has a notch 174 through which the upperend of the mass mounting rod 159 extends, a nut 175 adjustably threadedat the extremity of the rod, limiting the Adownward stroke of the mass', while the shoulder 176 on the rod."by its engagement with thev brack'etarm, limits the upward stroke of the mass. I

In operation, while the vehicle is running, the mass' 155 will oecillate upand down, throughs.

-stroke limited bythe engagement respectively of the flange 176 and the nut 175 with the bracket 173. On the up stroke -of the weight 155 and -downstroke ofthe pump. the disk 158 strik'esvthe `outerendoftheoperatinglleverl andcarries thelatterfalong with'it shoulder 178 lever 163 is arrested by contact with the head of the adjustable screw 177.` The operating lever 103 having a ratio of say 250 to 1, the pressure exerted upon the diaphragm by a mass of one pound, will, if 'the drip plugs and pipe lines impose corresponding resistance, rise as high as 250 pounds. The deflection of the diaphragm by reason of the correspondingly great reduction in stroke, is, however, so minute that the discharge is ih the order of only about one drop, as in the other embodiments. 4 y

In Figs. 17, 18 and 19 is shown another embodiment of lubricant supply construction, operating on the inertia. or jiggle principle. In this embodiment, the operating mass construction is shown straddied by the reservoir mounting bracket 180, which may be secured by bolts 181 to the dashboard D or other convenient support.

The pump structure of the reservoir is substan- I tially identical with that shown in'Fig. 11. However, in this case I have illustratively shown a smaller neck 183 requiring a smaller opening in the reservoir bottom than in the case of Fig. il, the inlet to the chamber 184 below the lter 185 being afforded by an outwardly diverging port 186 ina lateral plug 187 cast integral with the pump structure and communicating with said chamber' 184i through an angular port 188 at theoutermost part of bore 186. Y

In the present embodiment, the pump rod 189 extends upward through a gland 190 in the top oi' the reservoir R4 and is caused to alternately rise and fall-through impulse delivered bythe mass 191 through an intervening transmission, which includes a horizontal bar 192 riveted to the upper end of the rod 189 to which is pivoted as at 193, a vertical pitman rod 194, the lower end of which is pivoted at 195 to an operating lever 196 which,

in turn, is mounted on a pivot l97-near one end 'thereof in a lug 198 preferablyblanked out from the bracket 180.

The lever 196 has a short heel 199 between jaws 200 on which is riveted as at 201, the end of a long leaf spring 202 to the outer end of which is screwed as at 203, the upper face of the mass 191 thereunder. The mass is bifurcated at its-outer end 204 to straddle the outer downwardly directed extremity 205 of the lever 196, which is curved into a'hook shapeas shown to clear the mass 191; As best shown in Fig. 18, the lever 196 extends in front of the leaf spring 202 andis bent as at 206.to dispose the endthereof withintithe bifurcation of the operating mass'. Preferably, the operative engagement between the mass'and the lever is established through a pair of rollers 207 held by washers 209 in place upon the reduced ends of an eccentric pin 208, which passes through the lever 196. By rotary adjustment of the eccentric, the clearance between the weight and the rollers may inturn, be adjusted.

It may be briefly noted, that operationof the vehicle, -the mass 191 will 'oscillate up and through the pitman link 194 andg connector 192r down with iiexure of the spring 202.'v .In the up, stroke, the mass will strike the rollers V,207 and thereby raise the lever 196 about its pivot 197 and j. will lift the lpump pistonrod '189. In theugravity return ofthe mass 191 aided by the return of the spring 202 under its resiliency, a clockwise impulse isiapplied at the heel 199 of the lever 196 to cause the` latter to return and thereby depress the vpump plunger through its operating stroke.

In Figs. 20. 21 and' 22 shown vancther embodiment ofthe invention in which the operationof the pump depends on vibration of the vehicle in erating mechanism is actuated from one of the ve-l hicle springswin response to exure of the latter. The pump and the operating construction are shown of the same type as those of Figs. 14, 15 and 16, although the details are illustratively modied, `as shown, to provide a diaphragm 215 of the bellows type secured to a mounting cap 216 threaded upon the lower end of the Vpump unit 217, the upper end oi which rises within the resf ervoir R and has a depression mounting the lter 218. The operating lever 219 has bearing plates 220 riveted thereto at 220 at one extremity thereof into central bearing apertures in which extend the ends of bearing studs 221 threaded at 223 into the support structure 223 which is rigidly. secured to the pump case unit. Transmitting links 22d are pivoted at one end to the head 215 of' the bellows diaphragm and at the other closely adjacent the bearing studs 221 and to the left thereof in Fig. 20. The bearing plates 220 are deiiected at 225 to afford clearance for the links 224i.

The lever 219 extends, as shown, through a slot 226 in a bracket arm 227 amxed to the lower wail of the reservoir R5. The ends of the slot determine the limits of the pump stroke, a coil spring 228 normally retaining the lever near the upper end of said slot.

Illustratively, I have shown a conventional vehicle spring 229 aiiixed to a spring shackle'230 mounted in a bearing 231 which may be lubricated fvrom a piping system 232, a m ent of which is shown supplying the upper shackle bearin'g. Transmission between the spring and the outer end of the lever 219 is effected through a connection comprising a strap 233 securely lashed to one of the spring clips 234', a strong closely wound coil spring 235 being interposed between the upper end of the spring fastener and a mounting bolt 236 on the lever 219. Y

In operation, as the vehicle spring flexes. downward, tension is transmitted through spring 235 to draw the lever 219 downward, stressing spring 228 andrcausing correspondingminute extension or charging or the bellows215. In the subsequent upward iiexure of the vehicle spring 229, the outer end of the lever 219 will be raised by the return of spring 228, thereby drawing up the links 224 to efect corresponding minute discharge into the'distributing system.

The strap 233 is preferably iiexible and affords sufficient slack in length 23.3 thereof, to permit the ordinary small vibrations of the vehicle spring without effect on the pump. Only when the exure of the spring is somewhat greater, will the slack be takenI up and the lever 219 pulled down, the strong'spring 235 transmitting without appreciable iiexure, the force required for pump operation. Spring 235 will, however,''ex to permit further downward exure of the vehicle spring afterthe lever 219 has reached the lower 'end of -the slot 226, the latter limiting the stroke of the pump and preventing injury thereto dueto great iiexure of the vehicle spring.

While I have illustratively showna pump with stood that the construction could be embodied in a construction of the plunger pump type such as disclosed in Figs. 8 to 13 and 17 to19 or in a diaphragm of the `type shown in Fig. 14.4

I claimz- 1 1'. A lubricant chassis lubricating system of a vehicle including a lubricant reservoir, efforce plunger pump unit in the bottom thereof' having a .minute effective feeding installation for a central volume, an inlet connection. from the reservoir to the pump and a check valve controlling the outlet fromy the pump to the distributing system, and means for operating s aid pump, correlated with the vehicle @to osciliate and to reciprocate said' pump synchronously with the 'oscillation thereof during movement of the vehicle, said pump ,being constructed to minimize Aleak past the operating part thereoL'the oscillating structure of said opsaid plunger bothQupwardly and downwardly to*l respectively take charging and discharging strokes, said cylindrical bore being provided with a lower portion into which lubricant is sucked from said reservoir upon'upward motion of the plunger and from' which' it is discharged upon downward motion ofthe plunger .and also being provided with an upp`er portion serving as a seal and guide for the plunger, said operating means latter in the movement thereof,

when at rest floating in an elevated position, saidV plunger being located when-at rest in said bore with its lower end adjacent said lower portion of said bore, said operating means. in its reciprocation above and below said at rest yoating position rhaving a substantially greater movement than the eil'ective movement and-.stroke of the plunger in chargingv and discharging; said plunger making one charging stroke for each complete upward stroke of the operating means and one discharging stroke for each completedownward' stroke of the operating means', said plunger' during its eil'e'ctive charging and discharging strokes moving upwardly and downwardly with the upwardan'd downward movements of the operatingl means.

a A fedinginstauation for a' central chassis lubricating system of a vehicle including a lubricant reservoir, a force plunger pump having a minute 'eil'ective volume supplied from said reser voir on `-the charging stroke and delivering into the distributing system on the-dischargestroke,. and operating means for said pump correlated with the vehicle to respondto the vibration of the for translating each substantial vibratory movement into a continyouslrapidly executed full charging stroke of vthe pump, and means exerting a discharging impulse on the pump during the'ixitervals-between charging operation, said pump including a pump block with a vertical cylindrical bore receiving said plunger "located closely adjacent the bottom ofsaid reservoir,said operating means and said plunger being directly operatively connected together so that said operating means will move said plunger both upwardly and downwardly to, respectively take charging and discharging strokes, said cylindrical'bore being providedI lwith a lower portion into which lubricant is sucked from said reservoir upon. upward motion of 'the plunger and from whlchit is dischargedv upon downward motion of the plunger and also being provided with an upper portion serving as a seal and guide for .the plunger, said operating means .when at rest floating in elevated position, said plunger being located when at rest said borewith itslower end adjacent said lower portion of said bore, said operating'means in its reciprocation above and below said ,at rest floating position having a lsubstantially greater movementl than the eective movement and stroke of the plunger in charging and discharging. said plunger making one jcharging stroke for each complete upward stroke ofthe operating means and one dischargf,

ving stroke i'or each complete downward stroke of the operating means, said plunger during its effective' charging and discharging strokes moving upwardly and ldownwardly with the upward and down-ward movements of the operating means.

3. An automatic force pump including a casing, andl ejector therein, a moving operating'j member fixed to said ejector and protruding from said casing, a massI associated with said operating member an'd having a limited path of free move-A ment relative thereto and a spring yieldingly supporting the weight of said mass upon said moving operating member. l

4. An automatic reciprocating force pumpA including a moving operating member therefor, a mass associated with said operatingmember, and having a limited path of free movement relative theretofand a spring yieldingly supporting the weight of said mass upon said moving pump operating member.

5. An automatic supply installation-'including i a pump having a plunger, operating means there- 'cation under vibration of the vehicle, said mass having a Vlost motion connection with respect to .the pump to acquire momentum prior to actuating ,the pump and continuously exerting pressure upon said reciprocating member to movesaid member to the end of its discharge stroke in the intervals between momentum operations.

'1. An automatic pressure pump/fora chassis lubricating Sysm comprising an ejector mem'- ber, a mass bearing on said member to urge it to one end of its stroke, and 'mounted to have a path ofreciprocating movement under vibration, of the vehicle, means to cause a preliminarily lost motion movement by said. mass before eil'ecting discharge by said ejector member in`each disv charge stroke and means stressed by the discharge'stroke of said-.mass and actuated by the charge stroke4 of said massfor eil'ecting the return stroke of/saidV ejector.

8. In an automatic chassis lubricating system, the combination of-a pressure pump of minute volume including a plunger and an elongated cylinder member continuously enclosing said7 plunger, operating means therefor comprising a mass, the weight ot which urges said pump toward one end'of its stroke, a spring sustaining said mass, a stop connected to said pump and interposed in the path of movement of said ma.

under vibration of thenoving vehicleprevmtl ing saidplunger from. leaving nid operation of said pumpthrou'gh a limited stroke, saidspringtransmittingtheforeeimposedbythe weightof said mass of the pump.

.9. Inachassislubricatingsystem. theembiineilectimthereturnstrohe" nationnfanoilreservdaapmnptheninoflnell 7l volume, a mass for actuating said pump by a jiggle action, said mass being connected to furnish the operative-impulse for reciprocating the perating pump member, in both directions and a spring associated with said mass to permit movement of the latter relative to the operating part of the pump, said spring transmitting the operating impulse ofthe mass in one direction of the movement thereof and assisting the eiect of the mass in its movement to producevthe opposite stroke of the pump. y 'C 10. lIn a chassis lubricating system, the combination of an oil reservoir, a plunger pump therein of small volume, an operating mass' for said plunger and a spring supporting said-weight and'transmitting the impulse due to the weight oi* said mass, to said plunger for operating the latter through one of the strokes thereof.

11. In a chassis lubricating system, the combiend thereof, having a small bore and a plunger having a substantial length thereof tightly tting therein, an upstanding rod on said plunger, a resiliently sustained mass through which said rod extends and stop means-on said rod in the path of oscillation of said mass.

12. In a chassis lubricating system, the combination of an oil reservoir, a pump associated therewith and operating means therefor including a mass, a supporting spring for said mass rigidly secured with respect thereto at one end thereof, said Vpump having a part interposed inthe path of oscillation of said mass in both, directions thereof, thereby to cause said pumpv to reciprocate.

13. In a chassis luloricating,system,A the combination of a lubricant reservoir, a pump of small volume at the bottom thereof', a pump operating rod extending upward therefrom, means for said rod `comprising a generally horizontal plate secured to said rod, an upstanding leaf spring secured to said plate, asecond plate secured to the upper end of said spring, a mass rigid with the outer end of said second plate and a stop upon said rod in the pathof the yoscillatory movement of said mass .andpositioned to `permit a range of free movement of said mass.

14. In a chassis lubricating system, the combination of an oil reservoir, a small volume pump in said reservoir, an operating rod for said pump, means for operating said rod, said means including an inertia operator, a bushing about said rod rigidly secured thereto, said inertia operator comprising a lyoke having the free end or one of the arms thereof secured to said bushing'and having a mass rigidly secured at the free end of the-other arm thereof, the cross-arm of said yokebeing l. a leaf spring.

*15, In a chassis lubricating system, the comblnation of. an oil reservoir, a pump having an operating rod extending into the reservoir, means for reciprocatingsaid rod, said means comprising a mass, a leaf spring yieldin'gly sustaining said mass, said leaiS spring rigidlylsecured at one end i thereof relative to said mass, said piston rod having a stop rigid therewith at'one side of said massand another stop rigid therewith I'at the other side of said mass, said stops being spaced to permit a range o! free movement of said massv therebetween, but arranged in thepath of 'oscillation of said mass, thereby to'cause 'operation of the pump. l l 16. In'a chassis lubricating system, the combiation of an oil reservoir, a reciprocating pump' herein .of small volume, an operating rod for said operating pump, operating means for oscillating said rod, said means comprising a swinging mass, a spring rigidly secured with respect to said ymass at one fend. and with respectto said rod at the other en d thereof, and stops onsaid rod at opposite sides l of said mass and in the'path of swingingmovement ofi the latter, said stops affording a path of swinging movement therebetween for said mass.

17. A lubricatingsupply `installation including al reservoir, a plunger pump of small eiective volume, inertia operating means for automatically reciprocating said pump including a resiliently supported reciprocating weight and means .for causingV rapid charge strokes, and an inletport4 permitting admission from the reservoir to the pump, under the substantial suction generated by the quick charging strokes, said'pump includingI a pump block with a vertical cylindrical b'ore receiving said plunger located closely adjacent the nation of anloil container, a pump near the lower bottomy of said reservoir, said operating means and said plunger being directly operatively connected together so that said operating means will move said plunger both upwardly and downward- 1y to respectively take charging and discharging strokes, said cylindrical bore being provided with a lowerl portion into Vwhich lubricantis sucked from said reservoir upon upward motion of the plunger and from which it is discharged upon 'downward motion oi" the plunger and also being provided with an upper portion serving as a seal and guide for the plunger, said operating mpans when at rest iioating `in an elevated^ position, said plunger being located when at rest in said bore with its lower end adjacent said lower portion of said bore, said operating means in its reciprocation above and below said at rest iloating position havinga substantially greater movement' than the edective movement and strokeof the plunger in` charging and discharging, said plunger making one charging stroke for each complete upward stroke of the operating means and one discharging stroke fuor each complete downward stroke oi. the operating means, said plunger during its eective charging and discharging strokes moving vupwardly and downwardly with the upward and downward movements of the operating (means. y

18. 1A lubricant supply installation comprising a reservoir, ai small volume plunger pump near the bottom thereof, tight to minimize leak, a'lter in theipath di admission from the reservoir to the pump, an inlet port connection between the pump and the lter, and inertiameans for operating said-pump including a resiliently supported reciprocating weight and' means for causing the charging stroke to take place in. a. single sharp movement, thereby to exert suilicient suction and to which has passed through the'lter, said pump including a pump block with a vertical cylindrical bore receiving said plunger located closely adjacent the bottom of said reservoir, said operating lmeans and said plunger being directly opertively connected ltogether sothat said operatingmeans will move said plunger both upwardly and downwardly to respectively take charging and di/scharging strokes, said cylindrical borebeing provided with a lower portion into .which lubricant is sucked from sa'rld. reservoir upon upward motion 'of Vthe plunger and from which it is discharged .upon downward motion of lche plunger and also being provided with an upper portion serving as a seal andlguide for the plunger, said Operating means when at rest oating in 'an elevated position, said plunger being located when at rest in said bore with its lower end adjacent said lower portion of said bore, said operating means in its reciprocation above and below said.

at rest floating position having a substantially.

greater movement than the eifective movement and stroke of 4Vthe plunger in charging and discharging, Said plunger making one charging stroke-for each complete'upward stroke'of the operating means and one discharging stroke for each complete downward stroke of the operating means, said plunger during its eiective charging and discharging strokes moving upwardly and downwardly with the upward and downward movements of the operating means.

19. A lubricant supply installation for a central distributing system comprisingr a reservoir, a force pump in the bottom thereof, including an ejector of small effective charge, a jiggle mass device Lfor operating said pump, said mass having apath of free movement with respect to said pump unit, to lift the ejector in a rapidly executed stroke and td exert its weight for thereupon depressing the same,a filter adjacentthe pump, a check valve .25 between the filter and the pump, the suction generatedin the rapid suction stroke of the pump being suiiicient to draw the corresponding charge passed through the lterl and to open the check' valve'.

3 0 7520. A lubricant supply' installation comprising a reservoir,` apump unit'in the bottom thereof, a

pump plunger comprising a pin fitting Asnuglyin i a. corresponding bore in said unit. a dense lter controlling the inlet from said reservoirto the pump bore, a'check valveinterposed between the lter and the pump inlet, means for reciprocating said plunger, said means comprising a springsupported jiggle mass movement relative to the pump operator, said pump operator pre- 4U senting stops at opposite sides of the path of movement of the jiggle mass.

'21. An automatic force pump including a casing, an ejector therein, a moving operating member xed to A said casing, amass associated with said operating member and having a limited path of free movement relative thereto an a springl yieldingly supporting said mass. ,l

22. An automatic chassis lubricating pump in- 5o stallation comprising a plunger pump of small diameter and short 'stroke including a plunger and an elongated cylinder member continuously enclosing said plunger, saidV pump plunger havingan upstandin'g rod extension, a mass enclos- .55 Ving said extension, a' springsustaining said mass to bear upon said .rod -and a stop to limit the upward movement of said plunger preventing said plunger from leaving said member.

23. A feeding installation'for a central chassis o0 lubricating system, including 'a reservoir, 'a diaphragm pump of small volume substantiallyfat the bottom thereof, means for operating saidpump including a fulcrumed lever the lever' being connected to the diaphragm closely adjacent its .65 fulcrum 'and meansapplying an oscillating impulse responsive to the` vibration of the vehicle in` locomotion thereof Y'connected to' said lever rela'- tively vdistant from said fulcrum. f

^ 24. A feeding in stallationfor a central chassis lubricatingsystem', including an oil reservoir, a.

diaphragm pump, a check valve controlling Vthe j inlet from the reservoir to the pump and 'a check valve controlling'hthe outlet from said pump, and

operating means sor said pump including a pressuie-multiplying transmitting lever, .having af said ejector 'and protruding fromoperating means short'lever arm connected to the diaphragm and a long lever arm correlated with the vehicle for periodic oscillation thereof during vehiclev operation, said long lever arm being associated with a resiliently connected weight for reciprocation' upon operation of the vehicle. '25. A supply installation for a chassis lubricating system including-a reservoir, a pump unit in the bottom thereof including a diaphragm operating element, an outletfor said pump above said 10. diaphragm element and inertia operating means for said p p extending under said diaphragm. element inc uding a weighted extension autoe matically actuated upon movement of said chassis.`

26. A feeding installation for a central chassis lubricating system, including an oil reservoir, ai diaphragm pump at the bottom thereof having a minute elective volume, spring-seated valves controlling the inlet from the reservoir to the 2o .pump-and the outlet from the pump to the d istributing system, and inertia means 'including a f weighted extension automatically actuated upon 1 movement of said chassis correlated with the ve,

hicle to cause reciprocation of said diaphragm .at 25 short intervals for successively forcing small and inertia means including a weighted extension f 35 automatically actuated upon movement of said chassis correlated with the vehicle to cause recip. rocation of said pump at short intervals for successively forcing small charges of oil into the distributing system during operation of the vehicle. 10

28. A supply installation for a chassis lubricating system including a reservoir, a pump unit in the bottom thereof including a diaphragm operating element, an outlet for said pump above said diaphragm element, operating means for said pump extending under said diaphragm element, means for oscillating said diaphragm, said means including a lever below said diaphragm having a relatively long work arm and a very short power arm connected to said diaphragm and means operating on the outerend of said lever and responding to movementof the vehicle to oscillate said lever-and operatesaid pump. l

29. A supply installation for a. chassis lubricatingsystem including a reservoir, a

ment, an outlet for `said pump above saidelement, for said pump for oscillating said element: extending across said element, said means including a lever having a'relatively long C0 work arm and a relatively short power arm connected to said element and means-operating on the outer end of said lever and responding to movement of .the vehicle to oscillate said-lever". andnperate said pump. C3 30. In @chassis lubricating system, the comi bination of an oil reservoi, a reciprocating plniip thereinof "small volume, an operating rod for said pump,v operatingsneans for 'oscillating said rod,

said meanscomprisingaswngingmamasprmg 70.

rigidly secured with respect to said massstone end and withv lrespect to said rod at the other tof pump unit Yat 4:5 the bottom thereof' including a. reciprocating eleone of said stops, said stops aiording a limited path of swinging movement therebetween for said mass'. 'f

31. In a chassis lubricating system, the combination of an oil reservoir, a reciprocating pump therein of small volume, an operating rod for said pump, operating means for oscillating said rod, said means-comprising a vibrating mass, a spring rigidly secured with respect to said mass at one end, stops at opposite sides of said mass and in the path of movement of the latter, and yielding cushions for said'stops, saidstops affording a limited path of movement therebetween" for said mass. i f

32. In a chassis lubricating system, the combination of an oil reservoir, a reciprocating .Pump

therein of small volume, an operating rod forsaid pump,fopera'ting means for oscillatinghsaid rod, said means comprisinga vibrating mass,` a spring rigidly secured with respect to said mass at one end and with respect to said rod at the other end thereon-stops rigid with said rod and in the path of movement of the latter, said stops affording a path of vibrating movement therebetween for said mass.

.33.' A supply installation for a/chassis lubricating system including a reservoir, a force pump in the bottom thereof having an operating diaphragm, a stem protruding downwardtherefrom,v an operatinglever having a fulcrum closely adja-v cent to said stem, a Jiggle mass at the other end of said lever and a spring sustaining said mass upon said lever end.

34. A supply installation for `a central chassis lubricating system including a reservoir, a, pump unit `therebelow, of minute effective volume, having an operating diaphragm, means for oscillating said diaphragm for emission at high pressure of minute charges, said means comprising a power multiplying lever, means to operate saidl ver, said means comprising a jiggling lever ha g a mass sustained thereon at the free end thereof,

and a spring interposed between said mass and said operating lever.

35. A supply installation for a. chassis lubricating system including an -oil reservoir, a pump unit in the bottom of said'reservoir, said unit including `an operating diaphragm, a pump head clamping the fperiphery of said diaphragm ,in place, an axial rod on said diaphragm. having a bearing in said head, an operating lever extending below said rod and connected thereto, pivot pins in said head supporting said lever, the cen#- ters of said pivot pins closely adjacent the center' ef said connection, and a Jiggle masscooperating with the free end of said lever.

36. A supply installation for a central chass's lubricating system including a reservoir, a force pump unit of minute effective volume in the bottoml of said reservoir, and'havi-ngan operating diaphragm, pivotpins in the bottomfof said unit.

a pair of levers mounted on said pivot pins, one of said levers having an operating connection to said daphragm, slightly displaced from said pivot, a mass securely retained at the outer end of the other of said levers, Vand a spring interposed between said mass and the outer end of said rst lever.

37 \A supply installation for' a chassis lubricating system including a lubricant reservoir, a pump unit in the bottom thereof having an operating diaphragm; a pair of levers pivoted to said pump unit near the'lower part thereof, a jiggle mass rmly supported at the outer end of one of said levers, the othersaid lever having anannular outer end encircling said mass, a spring sustainto said diaphragm, said connection being slightly offset from the common pivot of said-levers for great multiplication of pressure and reduction of stroke. y

38. The combination set forth in claim 37 in which stop means is provided to limit the oscillatory stroke of said jiggle mass. A

395A supply installation for a chassis lubricating system including a lubricant reservoir, a diaphragm force pump unit in the bottom thereof, means for operating said pump to cause a succession of small discharges thereof, said means including an outlet for said pump above said diaphragm element, operating means for said pump extending under said diaphragm element, means for oscillating said diaphragm, said means including a lever below said diaphragm having a relatively long work arm anda very short power arm connected to said diaphragm and means operating on the outer end of said 'lever and responding to movement of the vehicle to oscillate said lever and operate said pump.

4 0. The Icombination of an oil reservoir, a' pump substantially at the bottom thereof, a pump rod extending through the top thereof, operating means for said pump in bark of said reservoir, said means including anoscillatory mass, a lever in the path of operation of said mass, to be oscillated thereby, and means rigidly connecting saidA voirenclosure, actuating connections extending upwardly'from the pump and from the motor to adjacent thetop of each enclosure and connect- `ing means between said actuating connections for transmitting movement of the motor to the pump- 42. In a chassis lubricating system, the combination of an oil reservoir, having an associated pump, a u -shaped bracket secured to the rear Wall thereof, and having means at the ends theref for mounting' the reservoirgupon a vehicle, and pump operating means extending within thespace defined by said bracket, said operating means including 4a pivoted lever, means rigidly connecting said 'lever to said pump, and a spring-sustained mass having the lever in the path of movement thereof for'operatlng the pump.

43.l In' a chassis lubricating system, the comv'blnation of a reservoir having a'pump\.associated ,therewith automatic operating means for said pump, comprising a jiggle mass laterally of said reservoir and below the top thereof, and linkage extend/ing upward from said mass to the top of said reservoir and connected to the upper end of the pump rod, the mass having a lostfmotion connection with respect to the linkage.

44, Operating means for the pump of a centnral chassis lubricating system comprising a pivoted lever, a structure fixed thereto, adaptedto transmit oscillatory impulse from said lever to a pump,

a spring leaf mounted on said lever, a mass carried by said spring leaf, said lever having an abutment member in the path of oscillation of the mass.

45. In a chassis lubficating system, the coml 60 Aactuating connections for bination of an oil reservoir, 'a pump associated therewith, an(operating rod for said pump, an inertia mass for causing reciprocation of said rod, a spring'supporting the weight of said mass upon said rod, and adjustable xed stop means for limiting the stroke of said rod in a. pump charging direction under the impulse of said 'mass, thereby to regulate the discharge volume of said Dumlh 46. An automatic pump installation for a central lubricating installation applicable to a motor vehicle, said installation having a reciprocating pump member, a body automatically subject toreciprocation upon Voperation of the vehicle, actuating connections between said body and said reciprocating member to cause therh member to' move with the body, said actuating connections permitting disconnection of said body from said pump member during such reciprocation. 1 47. An automatic pump installation fora central lubricating installation applicable .to a motor vehicle, said installation having a reciprocating pumping member, a toreciproca'tion, upon operation of the vehicle, actuating connections between said body and said reciprocating member to move the member with the body, and said actuating connections including means for causing the reciprocating pumping o element to move with but at a slower rate than the body.

v48.-'1'he automatic pumping installation of claim Pi in which 'said last mentioned means consists o1' a resilient connection between the body and the actuating'connections. .j

'49. An automatic pump installation for a central lubricating installation applicable to a niotor vehicle, said. installation having a reciproeating pumping member, a body automatically subject to' reciprocationupon operationl of the 40 vehicle; actuating-connections between said body and said reciprocating member so constructed and arranged that themember will always movewith the body, and means associated with said actuating -con'nections for causingthe recipro- 45. eating Dumping' element to move with but ata faster-rate than the body. A

50. The automatic pump installation of claim 49 in which said last mentioned means consists oi' av resilient 'connection between the body and connections.

51. An automatic pump installation for-a central lubricating installation applicable to a mocating pumping member, abody automatically subject'toreciprocation upon operation of the' vehicle, actuating connections between said body and said reciprocating member lso constructed and arranged that the member will always move `with the body, and means associated with said resisting movement of the element with the body in one direction and assisting it in a reverse direction.

52. The automatic pump installation of claim 51 in which said means consists of a spring associated with a connecting rod attachedto the reciprocating element, said spring acting'to assist charge of the pump. and to resistdischarge.

53. In a central lubricating system for application to an automotive 70.01' an oil reservoir xedto said vehicle-a pump rigid with ,said reservoir receiving its lubricant supply -i'romf'said'reservoir with a reciprocating electing element substantially movable in re spect to said reservoir, a reciprocat ment -for saldpump substantially body automatically subject said installation having a reclprcvehicle, the'combination motor elcovable both in respect to the reciprocating pump element and lthe reservoir, an 'actuating connection between said'reciprocating' motor and pump elements so constructed and arranged that substantial movement of the motor and pump elements toward each other will result in a discharge into the central lubricating system,` while substantial movement away from each other will result in charging of the pump from the reservoir.

54. A 'lubricantgsupply and' pressure installa- 1| tion adaptedto be utilized with a central lubricatinginstallation comprising a vreservoir with an opening in the bottomvthereof, a plunger pump arrangement attached to and depending below said opening with a pump chamber, said 1f pump being provided with reciprocatingl operating means, and with inlet Aand outlet passages Y includedu therein below. said reservoir bottom and a lter in said opening at said reservoir bottom in the path of lubricant flow from the 20 4reservoirl to the inlet passage, said pump including a pump block with a vertical cylindrical bore receiving said plunger located closely adjacent the bottom of said reservoir, said operating means and said plunger being directly 25 operatively connected together so that said operating means will move said plunger both upwardly and downwardly to respectively. take charging and discharging strokes,=sa.id cylindrical bore being provided with a lower portion 30 into which lubricant ris sucked from said reser7 voir upon upward motion of the plunger and from which it is discharged upon downward motion of the plunger and also"being provided with an upper `portionserving as a seal and guide 35 for the plunger, said operating means when at rest floating in an elevated position, said plunger being located when at rest in said bore with its lower end adjacent said lower portion oi' said bore, said operating means in its reciprocation above and below said at rest floating position' having a substantially greater movement than the edective movement and stroke of the plungerv in charging and discharging, said plunger: mitk-a ing one charging s tr'okev for each complete upward stroke oi' operating meahs and one discharging stroke for each complete downward stroke o1' the-operating means said plunger d uring itsl eiIective charging and discharging strokes moving upwardly and downwardly with theup- Award and downward movements of the operating 55. A lubricant supply and pressure'installation adapted for association with a central lubricating .installation comprising a reservoir and a plunger pump arrangement positioned adjacent the bottom of said reservoir, said pump arrangement including at the top thereoiI a strainer andin the body thereof belowsaid strainer' a pump chamber-and inlet and outlet passages leading, respectively, thereto and therefrom and reciprocating operating means for said pump supported upon said reservoir, said' pump including l a pump block with a vertical cylindrical bore receiving said plunger located closely adjacent 65 the bottom` ot saidv reservoir, said operating 1 means and said plungerbeing directly operative- 1y connected together-fao that' sind 'operating means will move said plunger both upwardly' and downwardly .to respectively take charging and discharging strokes, said cylindrical bore, provided with a lower portion into-which lubri-Y cantis sucked from said reservoir upon upward motion ofv the plunger and from which it is dis-l charged upon.downward motion of the plunger and alsoy being provided with anV upper portion' serving as a seal and guide for the plunger, said operating means when at rest floating in an elevated position, said plunger being located when at rest in said bore with its lower end adjacent said lower portion of said bore, said loperating means in its reciprocation above and below said at rest iioating position having a substantially greater movement than the effective movement and stroke of the plunger in charging and discharging, said plunger making one charging stroke for. each complete upward stroke of the operating means and one discharging stroke for each complete downward stroke of the operating means, said plunger during its eilective charging and discharging strokes moving upwardly and downwardly with the upward and down-v ward movements of the operating means.

56. The lubricant supply and pressure installation of claim 55 in which the pump is actuated vfrom above and a central opening is provided in said strainer.

57. A lubricant supply and pressure installation adapted for association with av central lubricating installation comprising a. reservoir and a pump arrangement positioned adjacent the bottom of said reservoir, said pump arrangementV including. a pump body with a central passageway receiving a piston and forming a pump chamber, with a socket of greater ydiamv et@y than said pump chamber receiving the end of a connecting rod actuating said piston and with passageways from the bottom of said socket to the reservoir to permit free flow of lu bricant thereinto and therefrom, the reciprocation of the end of said 4connecting rod in said socket serving to damp the movement of said piston.

58. AA lubricant supply 'and pressure installation adapted lfor amociation-with a central lubrieating installation comprising a reservoir and a pump arrangement `positioned adjacent the bottom of said reservoir, said `|pump arrangement including a. pump construction with two aligned i cylindrical pump compartments of diverse di'-Y ameters, each receiving a plunger, one of which has inlet andfoutlet assages originating and terminating within th reservoir and the other of which has an inlet passage originating within l the reservoir and an outlet passage terminating outside of said reservoir, the reciprocationf of the respective plunger in the rst mentioned compartment' serving to damp the motion ofv the plunger in the second mentionedcompartfi ment. 1 v

' 59. A lubricant supply and pressure installation adapted `for association with acentral lubrieating installation comprising a reservoir and a pumpl arrangement positioned adjacent the bottom of said reservoir, said pump arrangementincluding 'a pump arrangement having an inlet chamber at the top thereof, a pump chamber at the bottom thereof, an inlet passageway through. the` arrangement connecting said chambers, said 5 inlet chamber,` said pump chamber and ysaid in- `let passageway being all aligned and an outlet 'passageway transverse to said inlet passageway.v

60. An automatic pump including al moving ejector, almass associated therewith and havingA 0 a limited path o! 'free movement relativel thereto and a springyieldingly sustaining the weight of. said mass, said spring'being stressed upon downward movement :JI-the weight and being subsequently released upggn upward movement of the '5 weight, said spring when, stressed serving as a transmitting member between said mass andsaid ejector.

61. In a chassis lubricating system, the combination of an oil reservoir, a plunger pump associated therewith and operating means therefor including a mass, a supporting spring forv said mass extending from said mass to the reservoir, said pump including apump block with a vertical cylindrical bore receiving said plunger located closely adjacent the bottom of said reservoir, said operating means and said plunger being directly operatively 'connected together so that said operatin@ means will move said plunger both upwardly and downwardly to respectively take charging and discharging strokes, said cylindrical bore being provided with a lower vportion into which lubricant is sucked from said reservoir upon upward motion of the plunger and from which it is discharged upon downward motion of the plunger and also being provided with an upper portion serving as a seal and Aguide for the plunger, said operating means when at rest floating in an elevated position, said plunger being locatedwhen at rest in said bore with its lower end adjacent said lower portion of said bore, said operating means in its reciprocation above and below said at rest oating position vhaving a substantially greater `movement than ing stroke for each complete downward stroke of the operating means, said plunger during its effective charging and discharging strokes moving upwardly and downwardly with the upward and downward movements of the operating meana 62. A lubricant supply and pressure installation adapted for association with a central lubrieating installation comprising a reservoir and pump arrangement positioned adjacent the bottom of said reservoir, said pump'arrangement iricluding at the top thereof a at horizontal strainer and'in vthe body thereof below said strainer, a pump chamber and inlet and outlet passages leading, respectively, thereto and therefrom, op-

erating means for said pump positioned below said pump arrangements and operating connections between said operating means and said pump supported-'upon said reservoir and extending upwardly from said operating means tsaid' pumpa f, 1

63; A supply installation for a lubricating system 'comprising a reservoir, a pump unit in the bottom of said reservoir, said unit including a pump plunger pin oflsmall `ydiameter, inertia operating means including a resiliently supported reciprocating weight to cause said plunger to take rapid "charging strokes, a` filter interposed between the reservoir and the pump, and an inlet port between the iilter and the pump-the suction generated by the rapid charging movement 'of the Ypiston being sufticient to draw the correspending charge of oil past the illterf and the inlet port, said pump including a pump block with a vertical cylindrical"bore receiving said plunger located closely adjacent the bottom of said reservoir, said operating means and said plunger being directly operatively connected togetherJ so that said operating means will move. said plunger both upwardly and downwardly to respectively 'take charging and discharging strokes, said cylindrical bore being provided with alower portion upon upward motion of the plunger and from which it is discharged upon downward motion of the plunger and also being provided with an upper portion serving as a seal and guide for the plunger, said operating means when at rest oating in an elevated position, said plunger being llocated when at rest in said bore with its lower end adjacent said lower portion o1' said bore,

said operating means in its reciprocation above 'anti below said at rest oating position having a substantially greater movement than the eil'ec- 1,994,460l into which lubricant is sucked from said reservoir tive-movement and strok'eof the 'plunger in charging and discharging, sa'id plunger making one charging stroke for eachcomplete upward stroke ofthe operating means and one discharging\stroke for each complete downwardstroke oi' the operating, means, sadkplung'erv during its effective char g and discharging strokes moving upwardly and downwardly with rtheurrwarcl and .downward movements' of the 'bperating' JOSEPH 13mmh

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