US577492A - Woodworking-machine - Google Patents

Description

Np'Model.) 5 sheets-sneer'. r. J5.A M.1NASH.

WDODWORKING MAGHINE.

No. 577,492'. Patented Peb'. 23, 1397,.

5 sheets-sheet' 2A (No Model.)

E.. m H. Mm Nm ..K Mw am 0 O W.

Patented Feb. 23, 1897.Y

(Hommel.) 5 sheets-sheet a.

J. M. NASH.

WOODWORKING MACHINE.

Patented Peb.23,1897.

(No Model.) 5 Shegts-Sheet 4.

J.M.'NASH. n l WOODWOR'KING MACHINE.

No. 577.492.. Patented Feb. 23, 1897.

fm@ Model.) 5 sheets-sheet 5.A

J. M. NASH. WOUDWORKING MACHINE.

No. 577,492.. L Patented Peb. 23", 1897'. Y

- UNITED STATES PATENT OEEICE.

JoIIN u. NASH, oF MILWAUKEE, WISCONSIN.

WooDwoRKlNc-MACHINE.

SPECIFICATION forming part of Letters Patent No. 577,492, dated February 23, 1897. Application met November 25,1995. serrano. 569,986. (No modem To all whom, it may concern:

Be it known that I, JOHN M. NASH, a citizen of the United States, and a resident of Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented certain new and useful Improvements in \Voodworking-Machines; and I do hereby declare that the following is a full, clear, and exactv description thereof.

My invention has for its object to cheapen the production of chair-rounds, spindles, or analogous woodwork; and it consists in certain peculiarities of construction and combination of parts, preferably constitutin ga sawing and Sizing machine, hereinafter set forth with reference to the accompanying drawings and subsequently claimed.

In the drawings, Figure l represents a portion of my sawing and sizing machine as viewed on the plane indicated by line l l in Fig. 6; Fig. 2, a view on the plane indicated by line 2 2 in Figs..3 and 6; Fig. 3, a vertical longitudinal section of the machine having parts thereof broken away; Figs. L and 5, detail views on the plane indicated by line 4 5 in Fig. 6, showing two positions of certain Inovable parts in said machine; and Fig. 6, a plan view of thel aforesaid machine, partly in horizontal' section.

Referring by letter to the drawings, A represents the general framework of my machine. This framework is of any suitable construction, and Supported thereon is a stationary bed'B for certain elements of the machine, these element-s being duplicated on a carriage i C, adjustable upon longitudinal tracks b, constituting parts of said framework. As clearly illustrated in Fig. 2, the carriage Gis provided with bearings for the arbor of a pinion c in mesh with a rack d upon the inner side of a track b, and projecting extremities of a pin run through the pinion-arbor Serve as lugs for the engagement of notches in the arborengaging socket end of a crank-key D, employed to rotate the pinion for the purpose of adjusting said carriage.

Pivoted or otherwise secured to a vertical bracket e on the bed B is an arm E, having a right-angled bend. The bracket and arm are duplicated on the adjustable carriage C, and both arms serve as supports for chair-rounds, spindles, or other analogous woodwork that is to be fed tothe machine. Both brackets e have inclined inner edges that facilitate feed of material to the machine, and gages fg prevent longitudinal play of said material on its way to a rotary carrier hereinafter specified.

Y The gagefis on the bed B, and, as shown in Fig. 6, provision is made for its longitudinal adjustment Within certain limits, the shank of said gage being longitudinally slotted and the slot engaged by a clamp-bolt. The gage g is in pivotal connection with a plate lz, longitudinally adjustable on the carriage C, and is made flaring at its rear end in order that the material fed to the machine may readily find its way to the rotary carrier. A spring t isinterposed between the shank of gage g and a lug on the plate h, a stopy` on said plate serving to limit pivotal movement of said gage in one direction.

-From the foregoing it will be seen that the pivotal spring-controlled gage compensates for variations in the length (over a certain standard) of material fed to the machine. t

The rotary carrier comprises notched disks E2, fast on hub extensions of cams F, splined upon a shaft G, one of the cams beinglunder lthe bed B and the other under the carriage C, Inovable therewith. As herein shown, there may betwo notches in each disk, and the notches of one disk register with those of the other.

Lateral pins 7c on each of the disks, adjacent to the outer extremities of the notches therein, operate against pivoted dogs H, that in turn operate against pivoted spring-controlled fingers I to swing the latter down in rear of material fed by hand to the machine, these lingers serving as guards to prevent recoil of said material from the disk-notches when grippers J, subsequently specified, are actuated. y vStops mn are arranged in position to limit reverse movement of the dogs and fingers, set forth in the foregoing.

The grippers .I are loose on pivot-screwsp, extending laterally from the disks E2, constituting parts of the rotary carrier, and wipers K, also loose on the pivot-Screws, are connected to said grippers by means of spiral springs q, a stop-lug r on each wiper being in the path of a shoulders of the corresponding gripper. Cams L are rigidly secured to the bed B and carriage C of the machine in the path of the wipers K, and throw of the grippers J is limited by stop-lugs ton the disks IOO I E2, to which said wipers and grippers are pivoted. As each wiper comes into contact with a cam L it is swung on its pivot to bring the corresponding gripper into contact with a .st-ick of material under guard-fingers I, that have in the meantime been swung down into working position. A pair of grippers clamp the material in the rotary carrier during the time corresponding wipers are in contact with the cams L, and each gripper being in yielding connection with the corresponding wi per its throwis variable in proportion to the thickness of opposing material, but the throw of each wiper is always the same, as will be best understood by reference to Fig. l of the drawings.

A stick of material gripped in the rotary carrier is vcarried on against circular saws M in order to be cut a predetermined length, the latter being determined by the set of the carriage C and the gages f g, above specified. The saws have their arbors mounted in bearings on the bed l5 and carriage C and are driven in conjunction with parallel cutterhead arbors (also mounted on said bed and carriage) by means of belt-and-pulley gear from a shaft N, that has its bearings on the framework of the machine. The belt-pulley O 011 the shaft. under the carriage C is of such face and position on said shaft as to permit the adjustment of said carriage longitudinally of the machine-frame. Loose on the shaft G is a pinion P, having permanent tooth connection with the hub u of a friction-disk Q, loose on the hub of a driver in the form of a belt-pulley R, the latter hub being also loose on said pinion-hub. A flange of the belt-pulley R is in opposition to the friction-disk Q, and the working faces of said ange and friction-disk are beveled, as shown in Figs. 3 and G, so as to clutch one another when a spanner w, engaging a groove in the disk-hub, is moved in the proper direction by means of a crank-rod S, supported in bearings on the machine-frame and provided at one end with a cam-wing cc, engaging a notch in a pivotal arm y, shackled to the right-angled stem ,ef of said spanner, this stem being loose in guides on said machine-frame.

The construction and arrangement of parts set forth in the foregoing paragraph constitute a clutch mechanism under control of an operator of the machine, independent of the mechanism for rotating the saw and cutterhead arbors above speci tied, and the motion of the belt-pulley R is communicated, by means of the friction-diskQ and pinion P, to a spur-wheel T, fast on one end of a spindle that rotates in a bearing b on the machineframe, and a pinion U, fast on the other end of the spindle, meshes with another spurwheel V, fast on the shaft G, whereby the cams F and rota-ry carrier are driven at a low speed compared to that of the saws M and cutter-heads YV or other woodworking-tools fast to the aforesaid arbors.

A stick of material having passed the saws it is carried on between gages b2, that prevent endwise movement of said stick, the latter being stopped upon supports X in verticallyadjustable connection with the shanks Y of jaws Y, while the rotary carrier continues revolution. The jaw shanks Y and the shanks Z of jaws Z are in rule-joint connection with each other on studs c, extending from collars d', adj ustably supported on exteriorly-threaded sleeves A, between upper and lower set-nuts e', these sleeves being loose on guide-rods B', thatare supported in brackets C', depending from the bed and carriage portions of the machine, each sleeve being provided with a cross-head f in link connection with a hinged arm D', provided with an antifriction-roller g in the path of one of the cams F above specified.

The vertically-adjustable collars d' are provided with lugs h, that work in guide-slots in the brackets C', and the jaw-shanks Y Z in each pair are normally held apart by means of an interposed spring il", adjacent to their lower ends, the former of said shanks being opposed by guide-lugs.

The supports X are made vertically ad justable, so as to cooperate with bushings that may be set in the jaws Y Z, in order to accommodat-e the machine to material of various diameters, and the adjustment of the collars d determines the horizontal center of said material when gripped by said jaws and brought into position for action of the cutter-heads YV above specified.

Pivoted to the jaw-shanks Z are {ingerbars E', and interposed springs F are employed to hold the finger-bars outward on their pivots in the path of cams G, fast on the extended hubs of the cams Faforesaid.

The action of the cams G on the fingerbars E causes the jaws Z to swing in toward the ones Y and thereby clamp the stick of material caught on the supports X, this operation taking place coincident to the action of the cams F on the hinged arms D', there being a yield of the springs Fto compensate for the resistance of said material, while the former cams continue in contact with said 1in ger-bars.

rlhe action of the cams F on the hinged arms D results in a lift of the jaws to thereby bring them within clai'nping-forks Il', having vertically-yielding spring-controlled shanks centered in guides j', constituting parts of brackets I', laterally adjustable on the bed B and carriage C of the machine, in order to dctermine the vertical center of the stick of material when brought into position for action of the aforesaid cutter-heads.

rlhe self-ccnteri ng mechanism compensates for irregularities in diameter of sticks coining from the carrier.

As the stick of material is lifted to bring it in line with the cutter-heads it swings up and passes inclined gravity-bars J pivoted to the bed and carriage of the machine, and these bars, on their automatic return to normal position, constitute shedders for the stick ofl material when it is released from the centering-jaws after bein g sized by the cutter-heads. Y The forks II.' hold the jaws in grip on the material after the cams G' have passed out of contact with the sprin g-resisted pivotal iin gerbars E' above specified, and the vcontour of the cams F is such that said jaws remain stationary in said forks fora certain time after the lift of the hinged arms D' takes place, in order that the cutter-heads l/V may operate to size the ends of saidmaterial.

The cutter-heads are cylindrical and organized to run on the ends of the stick of material, accurately centered and held bythe autoo vers L', in pivotal lconnection with the bed' and carriage of the machine, said arbors and rods being trunnioned to forks M', that are connected by links N' to said bed and carriage. Arranged to turn in the pivoted levers L L', at the extremities thereof farthest from I f l their connection with the rods K, are antifriction-rollers k', that come in the path of cams P', fast on thehub extensions of the cams F aforesaid, said cams P' being timed to Aswing said levers on their pivots against the resistance of suitably-arranged springs Q' at the time the stick of material is centered in opposition to the cutter-heads, and thus the latter are brought on the ends of said stick to size the same. The cutter-heads having completed their operation they are returned to normal position by retraction of the springs Q' simultaneous with the clearance of the antifriction-rollers Zo' by the cams P' above specified, and this operation is also simultaneous with the return of the jaws Y Z, the sawed and sized stick of material dropping from the machine along the shedders J', set forth in the foregoing.

It may be found desirable in practice to employ springs arranged in position to serve as ejectors of material'from the jaws Y when these jaws are on return to normal position.

In order that the carriage C may not work out of adj usted position, a transverse bar R' is supported under the tracks b by a bolt-rod S', extending through the top of said carriage and engaged by a clamp-nut m', said bar being guided on the arbor of pinion c and a depending rod n opposite said arbor, this rod being in Fig. 3.

The blocks or ends sawed from the sticks of material are held back by means of suitably-arranged stops T', and extending from these stops arc plugs p', of wood or other suitable material, that face the saws and prevent said stops from being set too near the same.

In order to readily determine the proper adj ustment of the machine for work on sticks of different lengths, pattern-gages U' may be eX- tended from the bed B and carriage C of the machine parallel to each other.

The trunnions of the rods K' project from sleeves V', loose on said rods .between setnuts r', Vone nut in each pair of the latter being the hub of a hand-wheel W', as clearly illustrated in Fig. 3, and each rod is in screw connection with socket-shackles on the upper ends of the levers L', whereby the throw of the cutter-heads W or other woodworkingltools substituted therefor mayA be regulated. The rods K' may be provided with cushioned buffers t', as shown in Fig. 3.

It is to be observed that the shedders J' have their pivot ends provided with lugs u' t' in opposition to the upper and lower faces of a fixed stop-plate W', and thus movement of said shedders in either direction is automatically limited.

I have shown and described a practical machine constructed according to my invention, butxit is to be understood that in the matter of detail and relative arrangement of parts the machine may be varied in some particulars without departure from said invention.

Having now fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. In a woodworking-machine, the combination of a continuously-rotary carrier provided at each end with projecting pivots, a gripper and a wiper loose on each pivot but in flexible connection with each other, and stationary cams arranged in the paths of the wipers.

2. In a woodworking-machine, the combination of a continuously-rotary longitudinally-extensible carrier provided at each end with projecting pivots, a gripper and a wiper loose on each pivot butin Iiexible connection with each other,and stationary cams arranged in the paths of the wipers.

3. In a woodworking-machine, the combination with a continuously-rotary carrier, of pivotal guard-fingers for material fed to the carrier, and suitable means for automatically actuating the guard-fin gers to bring the same i in and out of working position with respect to said material.

4. In a woodworking-machine, the combination with a carrier, of pivotal spring-controlled guardiingers for material fed to the carrier, pivotal dogs operative to swing said iin gers into working position, and projections on the carrier arranged to actuate the dogs.

5. In a woodworking-machine, the combination of a carrier, provided with pivotal grippers and Wipers, cams arranged in the paths of the wipers, guard-fingers for -material fed to the carrier, and an automatic finger-actuating vmechanism embodying projections on said carrier.

6. In a Woodworking-machine, the combination of a continuously-rotary carrier com- IIO in the path of said material, and stops arranged to hold back the blocks cut from the aforesaid material.

7. In a woodworking-machine, the combination of a continuously-rotary carrier colnprisin g notched end disks, suitable means for automatically clutching and releasing material fed into the disk-notches, saws operative in the path of said material, stops arranged to hold back the blocks cut from the aforesaid material, and saw-opposin g plu gs extending from the stops. 1

8. In a woodworkingmachine, the combi nation with saws and a continuously-rotary carrier, of gages arranged to prevent longitudinal movement of material in the carrier after passing the saws, reci procative jaws, suitable means for effecting an automatic yielding grip of the jaws on material coming from the carrier, clamp-forks for the closed jaws, and reciprocative tools operative upon the centered material.

9. In a woodworking-machine, the combination with saws and a continuously-rotary carrier, of gages arranged to prevent longitudinal movement of material in the carrier after passing the saws, reciprocative jaws, suitable means for effecting an automatic yielding grip of the jaws on material coming from the carrier, clamp-forks for the closed jaws,and automatic sizing mechanism operative on ends of the centered material.

10. In a woodworking-machine, the combination with saws and a contin uously-rotary carrier, of a self-centering clamp mechanism for material coming from the carrier, automatically-reciprocative tools operative upon centered material, and pivotal gravity-bars arranged to be swung up and passed by said material on its way to line with the tools but which on return to normal position constitute shedders for the aforesaid material when the latter is released from the clamp mechanism subsequent to an operation of said tools.

11. In a woodworking-machine, the combination with a carrier, of a self-centeringmechanism comprising reciprocative normally open jaws having longitudinally-adjustable shanks, suitable means for closing the jaws on material brought thereto by the carrier, laterallyadjustable longitudinally-yielding clamp-forks for said jaws, and automatic reciprocativc tools operative on the centered material.

12. In a woodworking-machine, a carrier comprising a pair of peripherally-notehed disks provided with lateral pivots adjacent to the notches, a gripper and a wiper loose on'each pivot but in iieXible connection with each other, suitable means for imparting continuously-rotary motion to the disks, and stationary cams arranged in the paths of the wipers.

13. In a woodworking-machine, the combination with a carrier, of a selfcentering mechanism comprising reciprocative normally open jaws arranged in pairs and having longitudinally-adjustable shanks, a support on the shank of a jaw in each pair for material delivered from the carrier, suitable mechanism for closing the jaws on the material, laterallyadjustable longitudinallyyielding clamp-forks for said jaws, and automatically-reciprocative tools operative on centered material.

14. In a woodworking-machine, a self-centering elamp mechanism comprising sleeves reciprocative on guides, collars adjustable longitudinally ofthe sleeves, paired jaws havin g spring-separated Shanks in rule-jointconnection with the collars, a guide opposin g one jaw-shank of each pair, a finger-bar in pivotal connection with the other of these shanks, a spring interposed between the finger-bar and adjacent jaw-shank, rotary cams operative against the finger-bars, and laterallyadjustable longitudinally-yielding clampforks arranged to receive the closed jaws.

15. In a woodworking-machine,a self-centering clamp mechanism comprising sleeves reciprocative on guides, collars adjustable longitudinally of the sleeves, paired jaws having spring-separated Shanks in rule-joint connection with the collars, a guide opposing one j aw-shank of each pair, a finger-bar in pivotal connection with the other of these Shanks, a spring interposed between the nger-bar and adjacent jaw-shank, rotary cams operative against the finger-bars, and laterally-adjustable longitudinally-yielding forks arranged to receive the closed jaws.

16. In a woodworking-machine, a self-oentering clamp mechanism comprising sleeves loose on guides, collars adjustable longitudinally of the sleeve, paired jaws havingspringseparated shanks in rule-joint connection with the collars and the outer shank of each pair in opposition to a guide, hinged bars linked to the collars, rotary cams operative against the hinged bars, a finger-bar in pivotal connection with the inner jaw of each pair, other rotary cams operative against the finger-bars, and laterally-adjustable longitudinally-yielding clamp-forks arranged to rcceive the closed jaws.

17. In a woodworking-machine, the combination of a frame, a shaft in bearings on the frame, a pinion loose on the shaft, a driver loose on the pinion-hub and constituting one section of a clutch, a friction-disk that constitutes another clutclrsection and is in loose sliding engagement with the driver-hub, as well as in sliding-tooth connection with said pinion-hub; suitable means for adjusting the friction-disk, and a gear-train that transmits motion of the pinion to said shaft.

1S. In awoodworking-machine, the combination of a frame, a shaft in bearings on the frame, a clutch -controlled start-and-stop speed-reducing gear for the shaft, independently-driven reciprocative tools,reciprocative jaws, suitable means for effecting an automatic yielding grip of the jaws, clamp-forks for the closed jaws, and cams carried by said shaft to constitute parts of the tool and jaw mechanisms.

19. In awoodworking-machine, the combination of a frame, in bearings on the frame, a clutch-controlled start-and-stop speed-reducing gear for the shaft, saws and reciprocative tools, an independent drive mechanism for the saws and tools, a carrier having rotation with said shaft, reciprocati ve jaws having yielding grip on material coming from the carrier subsequent to action of the saws, clamp-forks for the closed jaws, and cams carried by said shaft to constitute parts of the tool and jaw mechanisms.

20. In a woodworking-machine, the combination of a carrier, reciprocative jaws, suitable means for effecting a yielding grip of the jaws on material coming from the carrier, yielding clamp-forks for the closed jaws, and reciprocative tools operative on said material in said fork-held jaws.

2l. In a woodworking-machine, the combination of a carrier, saws in the path of material on the carrier, reciprocative jaws, suitable means for effecting a yielding grip of the jaws on material coming from the carrier, yielding clamp-forks for the closed jaws, and

-reciprocative tools operative on said material in the fork-held jaws.

22. In a woodworking-machine, the combination of a frame having a stationary bed, a saw and a reciprocative tool having their arbors mounted on the bed, a carriage longitudinally adjustable on the frame, another saw and tool having their arbors mounted on the carriage, a continuously-rotary carrier having a portion thereof adjustable with said carriage, reciprocative jaws for gripping material coming from the carrier, clamp-forks for the closed jaws, and suitable means for reciprocating the arbors of the tools other lthan said saws.

23. In a woodworking-machine, the combination of a frame having astationary bed, a saw and a reciprocative tool having their arbors mounted on the bed, a carriage longitudinally adjustable on said frame, suitable means for clamping the carriage in adjusted position, another saw and tool having their arbors mounted on the carriage, a continuously-rotary carrier having a portion thereof adjustable with said carriage, reciprocative jaws for gripping material coming from the carrier, clamp-forks for the closed jaws, and suitable means for reciprocating the arbors of the tools other than said saws.

24. In a woodworking-machine, the combination of a tool-carrying arbor, a loose screwthreaded rod parallel to the arbor, a link mechanism in connection with said arbor, a sleeve on the rod also connected to the link mechanism, a hand-wheel nut adjustable on said rod in opposition to the sleeve, a rotative cam, a pivotal spring-controlled lever arranged to be actuated by the cam, and a lever-connecting shackle provided with a screwthreaded socket engaged by the aforesaid rod.

In testimony that I claim the foregoing I have hereunto set my hand, at Milwaukee, in the county of Milwaukee and State of Wisconsin, in the presence of two Witnesses.

J. M. NASH.

Witnesses:

N. E. OLIPHANT, B. C. RoLoFF.

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