US2216647A - Throwing machine - Google Patents

Description

Oct. 1, 1940. 1. P. MCHUGH THROWING MACHINE Original Filed March 22, 1937 7 Sheets-Sheet l 0cm, 1940. J.P,MCHUGH 2,216,647

THROWING MACHVNE l Original Filed March 22, 1937 '7 SheetS-Sheat 2 Oct. l, 1940. J. P. MCHUGH 2,216,647

THROWING MACHNE original Filed Maronzz, 1957 7 sheets-sheet s Oct. 1. 1940. J, P. M01-,UGH 2,216,647

THROWING MACHINE Original Filed March 22, 1937 7 Sheets-Sheet 4 1 fam Oct. l. v1940. .1. P. MOHUGH THROWING MACHNE Original Filed March 22, 1937 '7 Sheets-Shqet 5 THROWING MACHINE Original Filed March 22, 1937 7 Sheets-Sheet 6 @5%1 ff y M GMM/mug Oct. 1. 1940. J, P, MCHUGH 2,216,647

THROWING MACHINE Original Filed March 22, 1937 7 Sheets-Sheet '7 Patented Oct. 1, 1940 PATENT OFFICE THRUWING MACHINE oseph P. McHugh, Pawtucket, R. I., assignor, by

mesne assignments, to Industrial Machine Oorporation, a corporation of Delaware Application March 22, 1937, Serial No. 132,423 Renewed March 11, 1940 5 Claims.

This invention relates to new and useful improvements in apparatus for producing improved,l

fully thrown lustrous yarn.

The term lustrous yarn as employed herein is intended to embrace such yarns as raw silk,

` rayon or artificial silk, spunsilk, spun rayon, or

yarn made from any ofthe above fibers as well as so-called synthetic pigment yarn.

The primary object of this invention is to provide a machine of extremely low manufacturingr cost which is adapted to fully throw yarn formed from. a plurality of single ends, or the like, ina single spinning. operation and form therefrom final headless packages which are ready to enter fabric forming machines,

A further important object of the invention is to provide a machine of the above mentioned type which will form4 its final packages with a single series wind and with the packages on all of the spindles of the machine being wound synchronously so as to be completed simultaneously without any variation as to size or shape and with a uniform amount of yarn.

A still further important object of the invention is .to provide mechanism which will eiect stoppage of the entire machine upon breakage of any single end being fed to a package.

vAnother object of the invention is to provide independent tensioning mechanism for each being operable to effect stoppage of the complete machine as a result of breakage of its respective single end.

A further object of the invention is to provide a machine of the above mentioned type Which is constructed with a suitable number of spindles so as to permit it to be operated with sufficient economy to constitute a practical commercial device and notwithstanding the fact that the entire machine is stopped by the breakage of, and remains idle during the splicing of, any single end in the machine.

A further feature of this invention is to so construct and arrange the various instrumentalities of a lustrous yarn throwing and final package building machine that the various` spindles may be mounted to partake of angular movement only, and no stop motion mechanism for disconnecting the drives to the individual feed rolls and the spindles need be provided.

An additionalr object of theinvention is the provision of a magazine feed for the several single ends to prevent the stoppage of the-Inachine when the supply of thread is exhausted on any bobbin or other supplyholder; stop. motion single end and with each tensioning mechanismV mechanism responsive to breakage of any single end strand and to the action ofy the traverse mechanism upon completion of the packages on the spindles for stopping operation of the entire machine; a novel 'form of overhead creel and strand tensioning mechanism; improvements in the drive for the rolls employed to feed the doubled single ends; and an extremely simple and efficient traverse mo-tion'for effecting a single cycle building of the packages.

' Other objects and` advantages of the invention will be apparent during the course of the following description.

In the accompanying drawings forming a part of .this specification and in which like numerals are employed to designate like parts throughout the same:

Figure 1 isa side elevational View of the throwing and package building machine embodying this invention;

Figure 2 is an' end elevational View of the machine disclosed in Figure 1;

Figure 3 is a detail end elevational view of the single end supplyY meansand tensioning mechanism disclosed.- in the upper portions of Figures 1 and 2;

Figure 4 is a detail topv plan view of the mechanism disclosed in elevation of Figure 3;

Figure 5 is a detail longitudinal sectional View of a supply bobbin or spool holding pin;`

Figure 6 is a detailsectional View of the means employed for removablyY securing a bobbin holding pin to a creel bar;

Figure 7 is a fragmentary elevational View, partly in section, disclosing the feed roll mechanism for one pair of spindles, a portion of a spindle, and a spinner ring operatively associated with said spindle;

Figure 8 is a detail elevational view illustrating the gearv drive for the feed rolls;

Figure 9 is a fragmentary sectional View illustrating the 'supporting mechanism for the ring spinner rails;

Figure 10 is a detail side elevational view of the `form of traverse mechanism embodied in this machine; and- Figure 11 isv a top plan view of the traverse mechanism disclosed in Figure 10.

Referring particularly to Figures 1 and 2, it will be seen that the main frame of the machine is formed primarilyby the two vend castings l5 and I6. These yend castings preferably are of identical construction. Ihe casting l5 is disclosed in end elevation in Figure 2. and Will be vdescribed in detail. The bottom portion of the casting is formed with suitable legs I1 which are provided with adjustable feet I3 usable to effect leveling of the machine frame. The legs I1 are braced by a bar i9 which functions as a support for certain portions of the mechanism, as will be described at a later point. Above the brace bar i9, a second brace bar 2li is provided for reinforcing the leg portions I1. Above the leg portions, the casting is formed as a reduced head portion 2i having a relatively large opening 22 to accommodate certain portions of the driving mechanism for the machine.

The two end castings l and vI3 are interconnected and maintained in proper spaced relation by means of longitudinally extending rails. Figures l, 2, 10, and 11 disclose two bottom rails 23 and 24 which are suitably connected to the lower brace bars I9 of the casting legs i1. These longitudinally extending rails 23 and 24 function primarily as supports for the traverse mechanism, to be described in detail at a later point. Above the lower traversesupporting rails 23 and 24 is positioned a spindle rail 25. This spindle rail is best illustrated in Figures 1 and 2 as being 1 permanently connected to the end castings l5 and l S in a manner to prevent any movement of the spindle railrelative to the main frame of the machine.

Above the spindle rail and connected to the head portions 2l of theend castings is a singlev rail 26 (see particularly Figures 1 and 7) which extends longitudinally -of the machine and is positioned in the Vertical central plane of the entire machine frame. This rail functions as a support for the feed rolls and a part of the driving mechanism for the rolls, as will be described in detail at a later point.

The upper extremities of the head portions 2l of the end castings have connected thereto a longitudinally extending rail 21 which is clearly illustrated in Figures l, 2, 3, and 4 as constituting a support for the single end supply creels and tensioning devices. vA reinforcing tie rod 28 is illustrated in Figures 2 and 3 as extending longitudinally of this top rail 21.

An overhead creel structure and single end tensioning mechanism is provided and is best illustrated in Figures l, 2, 3, and 4. Figures 3 and-fl illustrate the top rail 21 as having secured thereto a suitable number of transversely extending bracket members 29. These bracket members extend transversely of the machine frame and are arranged in longitudinal parallelism. As will be clearly developed as the description of this machine proceeds, one of these brackets 29 is provided for each spindle of the machine. Both ends of each one of the brackets 29 are provided vvith upstanding apertured ears 30. One end of each transverse bracket 29 has suitably secured to its apertured ear 30, as by means of a boltand nut device 3|, a creel bar 32. Formed at suitably spaced intervals throughout the length of each creel bar 32 is a bearing opening 33 formed in a bearing enlargement 34 of the bar. Figures 3- to 6 best illustrate this structure. It will be noted from the disclosure of Figure 3 that these bearing enlargementsare grouped in pairs with the axes of the bearing openings for each pair angularly arranged with respect to each other'so that the said axes will converge at a point spaced transversely of the top of the machine frame and approximately at the opposite side of the frame.

Each one of these bearing openings 33 is designed to receive an enlarged hub portion 35 of a bobbin or spool supporting pin 36. This bobbin pin hub 35 is formed with an enlarged flange 31 at one end designed to bear against one face of the bearing enlargement 34 to restrict movement of the bobbin pin 36 through the bearing opening. The pin hub 35 is provided with an annular groove 38 in its periphery which is designed to receive a spring-pressed detent ball 39 mounted in an opening formed in the bearing enlargement 34. Figures 3 and 6 disclose the set screws 40 which back up the springs employed for forcing the detent balls into the pin hub grooves 38.

Figure 5 discloses each bobbin pin 36 as having mounted thereon a leaf spring member 4|y which functions to frictionally retain a bobbin on the pin. This spring member 4| functions to pr-event axial displacement of a bobbin from the pin and angular movement of the bobbin relative to the pin. It will be noted that the bobbin p-ins are to be inserted in the bearing openings 33 from the outer side of the creel bars 32 so that the bobbins or spools 42 will be positioned inwardly of the creel bars. The outer ends of the bobbin pins 36 are each provided with an enlarged, circumferentially grooved operating head 43 by means of whichk the various pins may be manipulated.

The arranging of the bobbin pins in angularly related pairs s for the purpose of accomplishing a magazine feed of single -ends to the twisting and winding mechanism. Figure 3 very clearly illustrates the manner in which this magazine feed for each single end is accomplished. Each bobbin or spool is wound with a desired amount of surplus at the inner end of the strand with this surplus normally wrapped around the flange 44 of the bobbin 42. This surplus of the inner end will be designated by the reference character 45.

The upper pair of bobbins 42 at the left of Figure 3 is operating in the following manner:

The single end strand 46 is being taken from the second bobbin 42 through suitable tensioning mechanism, to be described at a later point. The surplusage of the inner end of this second bobbin 42 has been knotted, as at 41, to the outer end of the first or top bobbin 42, and this surplusage 45 has been wound back on the top bobbin 42. of the top bobbin 42 has been wound up on the groove of the operating knob 43 which forms a part of the upper or top bobbin piny 36. This surplusage is, therefore, held in readiness to be knotted to `the outer end of the strand wound on the bobbin which will be positioned on the second pin 36 when the supply has been exhausted from the bobbin illustrated as being positioned on this second pin and the new bobbin has been substituted therefor.

The second set of bobbins illustrated in Figure 3 or the third and fourth bobbins illustrate this condition. Thesingle end 45 is shown as being taken from the fourth bobbin 42 through its tensioning mechanism. from the top is illustrated as having had its supply completely exhausted. When this supply became exhausted, .the feed of the single end 45 automatically transferred or changed from the third bobbin to the fourth bobbin. The fourth bobbin is illustrated as having the surplusage 45 of its inner en'd wrapped around the grooved knob 43 of its spindle. The operator of the machine, as soon asit isjnoted that the third bobbin has been exhausted, will substitute a filled The surplusage 45 of the inner end The third bobbin 2,216,641 b'obbin; anewiii' knot?the-surpiusage-aaof me elementaren@ functionsftofnormaiiy urge this fourth bobbin` :tok the ou'te'rL endl o'fv the supply' on` the new bobbin substituted for the exhausted bobbin'. Bobbins-tlree andff-ourptherefore', will assume the condition represented by b'obbins one and two; This magazine feed of single endsfovercomes the necessity of stopping the machine, in aA manner to be l fully described at a later point, when the supply of single ends becomesV` exhausted on any one bobbin'.

lFor the purpose of maintaining a comparatively large supply or` quantity of single ends in advance of the feed rolls, tov be described in detail at a later point, the creel bars have been mountedv on the'topofthe machine frame', and they single ends being fed to a spindle on one side of 'the frame' come `f'rorrrbobbirismount-ed on a creel bar located; onv the'- opposite sidey of the frame. The'singleends, therefore, extend across the'top of the frame totensioning' device locatedat the opposite side off `the frame andv then 'up to a condenser and` down to the feedV roll for ythe spindle to which the4 single ends of any one creel are being fed.

The remaining end of each bracket 29, therefore, has suitably fastened to its upstanding apertured ear 30 a tension bar designated in its entirety by the reference character 41. Each one of these tensionbars consists of angularly arranged plates 48 and 49. These plates are interconnected and maintained in proper, spaced, angular relation by means of a suitable number of straps which are electrically insulated from one or both of the plates 48 and 49. These plates -have suitably connected to their lower ends the wires 50 and 5I, respectively, which form a part of the circuit of an electric stop motion mechanism to be described in detail at a later point.

The plate 49 has vformed thereingaf'series of longitudinally spaced apertures 5I'a with one of these apertures beingprovided for each associated pair of bobbins carried by the diametrically opposed creel bar 32. These apertures 5ia are provided for passing the single ends 46 through the plateV 49; to the tensioning devices which will be designated in their entirety by the reference character 52. This type of tensioning device has been disclosed and describedin great detail in a copending earlier application Serial No. 112,150'led Nov. 21, 1936, and for that reason will be described in this case only in sufficient detail to enable one skilled in the art to arrive at an understanding of its mode of operation.

Each tensioning device 52 consists of the cooperating elements 53A and 54. The element 53 is rigidly secured to the plate 48 by means of the securing element 55. The tensioning element 54A is pivotally mounted upon the plate 48 by means of the pin 5B. Each one of these tension-ing ele'- auf ments 53 and 54 is formed from a strand of Wire properly shaped to provide' a main body portion or back member 51 with a plurality of loops or eyes 58 projecting from one side thereof. These loops or eyes 58 on the tensioning elements 53 and 54 are suitably spaced longitudinally of the main body or back members 57 and are arranged on the respective tensioning elements 53 and 54 sol that the loops or eyes 58 of one element l are staggered with respect to the loops or eyes sa'ted for.

ele i-itdbwnwardlyso that the contact ringer 5'9'A 'will en'gage theplat'e `49to electrically connect the plates: 48 an'd- 49a In Figure `3 the single ends 46 are illustrated as extending throughl the guiding apertures 5ta and threaded or laced through the loops or eyes 56 ci?v`r their respective tensioning elements 532 and 5%. "lilachsingle end 46-1 isthreaded through. the.r

loops or eyes 58f-of both tensioning elements 53 and? 54* inthe' order'in Which they are successivelyf-a-rrariged; i. e., i'lrst through the loop or eye element 54 in the vposition it normally assumes duringthe feeding 'of a` single end through the device. This lower'tensi'oning. element 54, however; is capable of assuming an iniinite number of positions whichv occur between the extreme upper 'and lower positions. When in its extreme upper position, all o'fltlie loops or eyes 58for bothz ofthe' tensioningr elements' 53 and 54 are in inte'rlface'dr or overlapped relation.- This lower tensioning element 54 may move downwardly from thisi upper extreme position into its lower extreme* position Where the contact finger 59 engagesv the plate 49.

As stated above, the purposel of this tension.'-v

ing mechanism isto assure atall times a uniform tension being imposed upon the single endstrand: bei-ng fed thereto. Ifthev tensioning mec'hanisi were' notHautomatic'al-ly variable, variations inl tensionv imposed upon the single end' strand by variations in conditions under which the' strand, leaves the supply bobbin would. not be compen- With this tensioning mechanism, as greater tension isl imposed upon ra single end strand as it leaves its supplyv bobbin, the tension imposed upon 'that strand by' its .tensioning mechanism is lessened in direct proportion to thev increase in tension at the bobbin. This lessening in" tensionY Vimposed bythe tensioning device continues-until no tension is provided by the mechanism, a'ndif this action does not constitute ai sufeient relief for-the tensionl condition, the strand will' break. When a strand breaks, theI lower tensioning element 54 drops into its extreme lowe'r position` with the contact device 59 engaging the plate 49 and, therefore, establishing an electric connection between 'the wires 59 and 5|.

vThis variation in tension imposed by the devices 52 on'.v the single end strands is accomplished bythe movement of the lower tensioning'elernent `54. relative to the `element 53. In

thenp'ositions illustrated at vthe right of Figure 3,. the inner loops or eyes 58`of both elements 53 and 54are substantially in register with each other so that the single end strand may pass substantially straight Athrough the openings of these two eyes or loops. The remaining eyes or loops of the tensioning elements may be treated asE being arranged in successive pairs with each pairV being formed by a loop or eye of eachelement" 53 and 54. f The disclosurev shows the loops or'eyessof vsuccessive .pairs as being arranged. in progressively greater spaced" relation WithJ-respect to each other. This variation in distance between the respective loops or eyes results in different degrees of tension being imposed on the single end strand by the respective pairs of.

loops or eyes. The greater the distance between the loops of a pair, the greater the degree of tension. Y

It will be apparent, therefore, that as the lower member 54 moves upwardly toward the upper element 53, successive pairs of loops or eyes will be brought into alignment, and as a pair of opposed loops or eyesfis brought into alignment, the tension formerly imposed upon the single end strand by this pair of loops is removed. The removal of tension imposed upon a single end strand, by bringing into alignment pairs of opposed loops or eyes, may continue until all of the opposed pairs of loops or eyes are brought into alignment and the tension on this particular single end entirely removed.

For the purpose of bracing and steadying the superstructure composed of the creel bars 32 and tensioning mechanism bars 41, an upstanding brace bar 66 is mounted on each end casting l5 and I6. The upper ends of these upstanding brace bars 60 are interconnected by a rod 6| which extends longitudinally of the machine frame and has suitably connected thereto a suitable nurnber of transversely extending brace arms 62 which are connected at their outer ends to the upper ends of the creel bars 32 and tensioning mechanism bars 41. The various single ends 46 leaving the tensioning devices 52 of any one tensioning bar 41 travel upwardly to and through a condensing eye or thread guide 63 which is mounted upon and extends laterally outwardly of the upper end of its tensioning mechanism bar 41.

The doubled single ends leaving the condensing eyes 63 pass downwardly to feed roll devices and additional thread guides which will now be described.

Referring particularly to Figure '1, it will be seen that the previously described longitudinally extending feed roll rail 26 has mounted thereon a transversely extending bracket 64 which projects beyond both sides of the rail 26. By considering Figure l, it will be seen that one of these bracket members 64 cooperates with a spindle on each side of the frame. Both extremities of the bracket 64 are provided with apertured ears 65 intended to receive securing bolt and nut devices 66 by means of which feed ro-ll supporting arms 61 are fastened to the opposite ends of the bracket 64. Each bracket, of course, is provided with a pair of feed roll supporting arms At a point intermediate its ends, each feed roll arm 61 has journaled therein a feed roll shaft 68. On one side of the arm 61, the shaft 68 has suitably iixedthereon a feed roll 69. This feed roll is described in detail, as to its features of construction and mode of operation, in an earlier application Serial No. 112,150 filed Nov. 21, 1936. For that reason it will receive only general attention. The feed roll preferably possesses'a diameter of approximately five inches for the purpose of permitting a considerable quantity o-f doubled yarn to be maintained onl its periphery. This considerable quantity of yarn permits a high twist to be placed in the yarn by allowing the twist to creep back from the spindle and ring spinner, to be describedat a later point, around the periphery of "the feed. roll. The feed roll is provided with three peripheral channelsA 10 in which the doubled yarn is wrappedv or wound around the feed roll.

The upper end of each feed roll supporting arm 61 has mounted thereon a thread spacing and guiding element 1|. AThis guiding element is formed with an inner loop portion 12 which receives the doubled strands or single ends from the condensing eye or guide 63 and directs these doubled single ends to the inner channel 10 of the feed roll. The remainder of the guide element 1| is formed into a spiral 13 of cork screw formation. The spaces between the respective convolutions of this cork screw formation function as guides for directing and transferring the doubled single ends as they leave the periphery of one channel 1U into and around the next adjacent channel. This lcork screw formation, therefore, guides the doubled yarn into the successive channels 10 of the feed roll 69 and out of the final or outer channel toa thread guide 14 adjustably supported on a pin 15 carried by an arm 16 which extends laterally outwardly of the feed roll supporting arm 61.

From the thread guide 14, the yarn extends downwardly to the traveler 11 of the spinner ring 18 and forms the balloon 15, best illustrated in Figures 1 and 7. The spinner rings 18 for both sides of the frame are mounted upc-n ring rails 89. The two ring rails 88, one for each side of the frame, are supported by the transversely extending angle brackets 8| which are supported and actuated by suitable traverse motion mechanism to be described in detail at a later point.

Each spinner ring has associated with the same, inthe conventional manner, a spindle 82.

ne various spindles for both sides of the frame are journaled in the spindle rail 25 by means of bearing structures 83, see particularly Figures 1 and 2. These spindles 82 are mounted for angular movement only and are provided with the customary driving whirl 84.

The traverse or builder motion mechanism employed for effecting the desired vertical reciprocatory movement of the ring rails 88 is illustrated in detail in Figures l and ll. Mounted on the transversely extending lower brace bar i9 of the end casting l are bearing brackets 85 which have journaled therein the drive shaft 86 which receives the power applied to the traverse or builder motion mechanism. This power is delivered to the shaft 86 by means of the worm wheel 81 driven in a manner to be described in detail at a later point. Suitably keyed to the drive shaft 86 is a heart cam 88. Stop collar 89 is fastened to the shaft 86 to prevent axial movement of this shaft relative to its supporting bearings 85.

Journaled in bearing brackets 98 on the longitudinally extending rails 23 and 24 is a transversely extending shaft 9| which is arranged in parallelism with the drive shaft 86.

Loosely journaled on the shaft 9| is a sleeve 92 having formed integrally therewith a laterally extending arm 93. At the outer end of this arm 93, a tubular boss 94 is formed and receivesthe shaft 95, on one end of which is mounted the concentric truly cylindrical roller 96 which bears against and rides on the periphery of theheart cani 88. It will be seen, therefore, that the arm 93 isy oscillated by the cam 88 when the latter is driven and that the oscillatory movements of the arm 93 are of constant amplitude.

Formed integrally with the boss 94 of the arm 93 is an upstanding finger 91, to the extremity of which is pivotally connected a lever 98. The

outerendrof this-lever is pivotally connected to a linkf99 lwhich in turn .is pivotallyconnected at its .free Vend .to ya :supporting arm .I 0.0 -which is `freely mountedupon .the shaft 9.I.. The .pin .I0| employed for connecting .the link .99 tothe arm |00 .has journaled .thereon apawl |102 which is urged .by thespring v|.031into engagement Awith the .perilpheral Vteeth of ithe ratchet wheel .I 04.

Thisratchet wheel isy keyed .to afsecond sleeve .|05 .loosely mounted on the shaft 9|. .A worm .pinion .|06 is .keyed ,to -or ,formed integrally with the sleeve .|05 .and meshes with ,a -similar worm pinion |01 tfastened .to the extremity of a Astub shaft .|08 which is yjournaled inthe bearingarms |09 projecting .vertically .from .the -oscillatable arm 93.

The remaining endof .the stub shaft Y.|00 .has .keyed -thereto a worm vgear .|.|.0 Y.which meshes ,Withaworm ,wheel keyed toa short `shaft |I2 which ,isjournaled in .a .bearing .Li .formed .integ- :rallywith .theoscillatable armed. The .shaft |12 vhas.s,uitalrlly keyed,-or otherwise .fastened thereto, .a .comparatively 'large builder or half-heart .cam M4. The .cam surface .I l5 :of .this builder cam ,terminates .at .its inner .end in a .stop .shoulder` |.|.6. The .cam .surface ,|.|.5 `is unobstructed or .uninterrupted i12-rom .this stop .shoulder .il i6 lto .its outer `extremity Y|.| 1.

The lever .9.8 has .formed .thereon van abutment .LIB which -is .positioned tolengage the head of an adjustable pin .I.l.9. The `threaded stern Vof this lpinisrnounted'ina.iXedlcvracket |20 and is .held ,inadjusted .relation to this bracket by means of a set .screw I 2| Y It will `be appreciated .that .as .the .heart cam .B8 rotates, it will cause .the arm 93 'to oscillate through .a path of constant .length or .amplitude As `,the .oscillatable .arm v.93| is raised by `the cam .38, the .lever 98 will be moved upwardly until .the `abutment IIB engages thestop vpinIIfS. vFurther upward movement of the lever .9B -with the .arm S3. Will .be checked `or .stopped by .this `pin .i |9. The lever 98, therefore, -will pivoton the :upstanding arm of .finger .9.1 fand will cause the 4pawl |92 to-bemoved downwardly. This downward movement-of the pawl |02 will effect a-small .rotary Arnovem-entfof the ratchet Wheel |04. The extent Aof rotary movement l.of vthis ratchet Wheel may be varied by adjusting -the location .of `the head of 4the stop pin M9 relative to-the path of movement of the `abutment |f|8v yon the lever 198. Rotary movement of the ratchet wheel YIilffl ywill result in rota-tion of .the .worm [pinion fmt. This rotation ofthe pin-ion |106 will rbe 4transmittedthrough the meshing '-Worm pinion |01 'tothe-'shaft -I-il and fromfthis shaft to the builder kor half -heart 'cam fI |;4 through .the worm gea-r M0 and worm wheel -as -well gasathe short :shatt .'I-.l 2. lIt Vwill lbe vap- :precia'ted, therefore, that the oscillatory movevment fof-the :arm 93, Vresulting :from rotation of the heart cam 83, will effect a step-by-.step advancing movement .of :the halt-heart or builder Acam ;|v|.4. `This movement .ofthe half-heart cam is iin thefdirectioniof .the 'arrow ,in Figure l0.

"The'periphery of rthe'builcler :or half-'heart cam I |.41is engagedibysaconcentricallly mounted, truly :cylindrical roller |I22 'which is :supported 'by -a shaft |223 supportediby the extremity -of .a vlever I2@ which iis loosely journaled on the shaft 9|. This 1lever |24 is employed yfor vtransinitting the motion Vproduced by the traverse mechanism. to the ring rails 430. It will 'be appreciated that this motion transmitting lever 1|^`24Qpartakes of movements-which result from the action oi the builder cam lISI-'4 being superimposed uponthe action of the heart cam-88. This movement of the motion .transmitting leverf|24 ,consists yof an oscillatory 'movement produced by the heart cam 88 and a step-by-step -changing of .its starting location .which results from the .action .of the builder or half-heart cam |=|4. When vthe roller |22 is in engagement with the stop shoulder IIB of the .builder cam, the motion transmitting .lever |24 is properly positioned` .to start the movement of theringrails for beginning .thebuilding of packageson .the various spindles. The Vring railsy are caused to traverse the spindles Ythrough strokes of constant amplitude .as a result of the action .of .the heart cam.88. The builder or half-heart .cam .I t4, howevenad-vances the starting points .of `the ftraversestrokes of the .ring rails and ad- Vances these lstrokes-through A.successive steps .until.a.single vcycle build of the .package has resulted .inthe `production of a package of the desired length.

When packages of proper length have been Yproduced on the spindles, the tmotion transmitting lever |24'Lhasbeen moved until the abutment |.25-carried.on .the same .engages a switch .arm |26 vandmoves thisswitch arm sufficiently to -.eng-age the contacts |21 connected to the stop :motion circuitwires 50..and 5|. When a circuit .is Aclosed to ythesel .wires .50 yand'5| .by engagement ofthe contacts |21, the -entire machine will be stopped in amanner to be rdescribed ata later point. y Y

A.After the machine has been vstopped as a result .of building complete packages, it becomes necessary to return the half-heart or builder .cam I.|4 -to.its starting point. ,plished vby meansof a vsprocket chainf|28 which .is trained .over a-.sprocket wheel |29-, keyed to 'the As1eeve'.|.05,l andra secondsprocket wheel l|30 .mountedonashaft |3| which issuppo-rted inthe bearing .|32 .carried .bythe end casting I5. A lcrank |.33 .is .providedior .driving the sprocket wheel"l30. By 'lifting .the .pawl I.02 `out .of engagementy Withthe ratchet wheel |04, jthe sleeve |05 .may .be .rotated .in the opposite vdirection .for .causing the half-heart or-builderl cam ||4. .to be ,moved .in .the direction opposite to `that indicated .by ,the .arrow appearing inl Figure 10 and ,until the .roller-.|22 engages the stop shoulder IIG at `thejnnerend of the ybuilder cam.-

The mechanism .employed vrfor `.transmitting .motion .from the `lev`.er.|24 vto .the ring .rails 30 consists of a..,r.od |34 whichv extends longitudinally vof .the entire trame. This rod 'is'.connected .to the .lever |24 .by -a pin ,and slot connection |240. which will .allow for .adjustment .of .the throw of rod |34 to shorten or lengthen the stroke of thering rails. This rod |34 has piv- .otally .connected .to .the.same, at suitably spaced intervals, .the two .bell cranklevers |35 which are .supported by. means ofthe depending bracket arms |36. The upper .extremities of y.the bell crank levers .|35 have ,journaled therein rollers |31 which engage the lower ends of vertically extending thrust rods |38. These thrust rods extend upwardlythrough slide bearings |39, .carried bythe spindle rail 25, `forconnection at their upper ends to the brackets 8| which support the ring rails v(se-e'ligureQ).

The mechanism for driving the various spindies, the traverse vor builder motion mechanism, and the feed rolls will now be described. An electric motor |40 is suitably mounted upon the end casting -|6 and drives a sprocket pinion |4| which hasgtrained thereon a sprocket chain |42. 'This chainfis trained over a sprocket wheel This is accom- 53.5

|43 keyed to a shaft |44 mounted on a bracket |45 also carried by the end casting |6. 'Ihe shaft |44 also has mounted thereon two spaced belt pulleys |46 (only one of which is shown in Fig. l) of equal diameter. These pulleys |46 are adapted to be selectively, singly clutched to the shaft so either one may be employed as the driving pulley while the other will act as an idler. This form of spindle belt drive is conventional for the Atwood 5B machine and permits changing the direction of rotation of the spindles for right or left twist.

A belt |41 is trained over the spaced pulleys |46 and extends longitudinally of the frame t0 be trained around the pulley |48 located at the opposite end of the frame. A small idler pulley |49 is adjustably mounted on a bracket |50 carried by the end casting I6 and is adjustable to properly tension the spindle driving belt |41 which is trained thereover. At suitable intervals, idler pulleys |5| are provided for maintaining the belt |41 in driving engagement with the whirls 64 of the various spindles.

For the purpose of causing any slippage of the belt employed for driving the spindles to result in a similar slippage in the drives for the traverse builder motion mechanism and the feed rolls, the drives for these two mechanisms are taken from the belt |41. The shaft |52 supports the pulley |48 around which the belt |41 is trained. This shaft is journaled in a long anti-friction bearing |520, fastened to the end casting by lateral arms |521), best shown in Fig. 2. The upper end of this shaft |52 has keyed thereto a worm |53 which meshes with a worm |54. This worm |54 is keyed to a shaft |55 which also has keyed thereto a pinion |56. Meshing with this pinion is a shiftable pinion |51 journaled on the end of a bracket arm |58. The bracket arm |58 is maintained in the desired adjusted position by means of a clamping pin |59 which passes through the elongated aperture |59a of the bracket arm |58. Figs. 1 and 2 disclose an angular bracket plate |60 on which the bracket arm |58 is adjustably mounted by means of the pin |59. The pinion |51 meshes with the gear |6| when in its full-line position, which gear |6| is keyed to a shaft |62. This shaft `|62 is supported in bearings carried by the bracket plate |60 and both of the end castings I5 and |6. The bracket arm |63 has journaled on its outer end an idler. pinion |65. The bracket arm |63 is adjustably mounted on the bracket plate |60 by means of the pin |66 which is threaded in the bracket plate |60 and is passed through the slot |61 of the arm |63.

It often becomes desirable to change the direction of rotation of the spindles for producing either right or left twist. The direction of drive of the feed rolls and traverse or builder motion mechanism, however, must always be maintained the same. In the present machine, the direction of rotation of the spindles may be changed, as described above, by changing the clutched condition of the pulleys |46. With the spindle belt driven in one direction, the pinion |51 is positioned in mesh with the pinion |56 and gear |6| for effecting rotation o-f the gear |6| in the direction of the arrow appearing in Figure 8. The shaft |62, of course, will be rotated in the same direction as the gear |6|. When rotation of the spindles is reversed, the shaft |62 may be rotated in the direction of the arrow appearing in Figure 8 by shifting the pinion |51 out o-f mesh with gear |6| and into mesh with the pinion |65 which in turn is adjusted to mesh with the gear |6|. The shaft |62, therefore, is very suitable for use as a drive shaft for the feed rolls and the traverse or builder motion mechanism.

It often is desirable to change the amount of twist placed in the yarn being Wound on the spindles. This result can be brought about by varying the ratio of drive from the shaft |55 to the shaft |62. The relative size and number of teeth of the pinion |56 and gear |6| may be changed, within permissible limits, to so. vary the drive ratio. Because of the slot and pin mountings for the bracket arms |58 and |63, the pinions |51 and |65 may be adjusted to take care of changes in pinion and gear sizes.

The shaft |62 is supported at suitable points along its length by bearing brackets |69 (see Figure?) and has mounted thereon a plurality of pinions |10. One of these pinions is provided for each transversely arranged pair of feed rolls 69. Figure '1 discloses one of these pairs of feed rolls as having the gears |10 and |1| mounted upon the short feed roll shafts 68. The gear |1| constantly meshes with the pinion |10 and the other gear |12. With this form of drive, both of the feed rolls are driven in the proper directions, as indicated by the arrows in Figure '1.

Outwardly of the gear |6|, the shaft |62 has mounted thereon a pulley or sprocket wheel |13 over which is trained a belt or sprocket chain |14. This belt or sprocket chain also is trained over a pulley or sprocket wheel |15 keyed to a shaft |16 which has a worm |11 keyed thereto and in mesh with the worm wheel 81 for driving have been described as operating to electrically connect or bridge between the wires 50 and 5| when any single end 46 of the entire machine breaks. The stop motion mechanism employed in this machine is of such a character that it will break the circuit to the electric motor |40 when the wires 50 and 5| are bridged or interconnected by any of the tensioning devices. It has also been pointed out that the traverse or builder motion mechanism eiTects a circuit closing action between the wires 50 and 5| when all of the packages have been completed. The stop motion mechanism preferably consists of a motor starting box or rheostat with either an overload or no-Voltage release mechanism which will o-perate when the wires 50 and 5| are electricallyV connected.

Figure 1 discloses very generally this type of automatic overload release starting box, which is designated by the reference character |18. This type of automatic control is very well known, and a great many different makes of the same can be purchased on the open market. Brieily, it consists of a manually controlled switch arm |19 which is moved into circuit closing position against a holding magnet |80. This magnet will function to hold the switch arm |19 in its circuit closing position until the circuit to the holding magnet is either short-circuited or broken. The wires 50 and 5| extend into this control box |18, and when these wires are interconnected or bridged at any of the tensioning devices or the traverse or builder motion mechanism, the circuit for the holding magnet |80 will either be shorted or broken, in a well known manner.

It is to be understood that the form of this invention herewith shown and described is to be taken as a preferred example of the same and that various changes in the shape, size, and arrangement of parts may be resorted to without departing from the spirit of the invention or the scope of the subjoined claims.

Having thus described mylinvention, I claim:

l. In a machine for fully throwing lustrous yarn and building packages therefrom, a main frame, overhead single end supply means mounted on said frame, a plurality of spindles mounted on said frame for angular movement only, means for feeding the single ends to the spindles, spinner means movable relative to the spindles, traverse mechanism for actuating the spinner means, a prime mover, constant drive connections between the prime mover and the feeding means, the spindles. and the traverse mechanism, control means for the prime mover, and means for effecting actuation of the control means to stop the prirn-e mover upon breakage of any single end being fed from the supply means and upon completion of the building of the packages on said spindles.

2. In a machine for fully throwing lustrous yarn and building packages therefrom, a main frame, a plurality of spindles mounted on said frame for angular movement only, magazine feeding means for uninterruptedly supplying a plurality of single ends to each spindle, means.

for feeding the single ends to the spindles, spinner means movable relative to the spindles, traverse mechanism for actuating the spinner means, a prime mover, constant drive connections between the prime mover and the feeding means, the spindles and the traverse mechanism, control means for the prime mover, and means for effecting actuation of the control means to stop the prime mover upon breakage of any single end being fed from the supply means and upon completion of the building of the packages on said spindles.

3. In a machine for fully throwing lustrous yarn and building packages therefrom, a main frame, overhead single end supply means mounted on said frame, a plurality of spindles mounted on said frame for angular movement only, means for feeding the single ends to the spindles, spinner means movable relative to the spindles, traverse mechanism for actuating the spinner means, a prime mover, constant drive connections between the prime mover and the feeding means, the spindles andthe traverse mechanism, control means for the prime mover, means for effecting actuation kof the control means to stop the prime mover upon breakage of any single end being fed from the supply means, and means for effecting actuation of the control means to stop the prime mover upon completion of the building of the packages on said spindles.

4. In a machine for fully throwing lustrous yarn and building therefrom nal headless package-s, a main frame, overhead single end supply means mounted on the frame, a tension device for each single end, a plurality vof spindles mounted on said frame for angular movement only, means for feeding the single ends to the spindles, spinner means movable relative to the spindles, traverse mechanism for actuating the spinner means, a prime mover, constant drive connections between the prime mover and the feeding means, the spindles and the traverse mechanism, control means for the prime mover, means under the control of each one of said tensioning devices for effecting operation of said control means to stop the prime mover upon the breakage of any single end being fed from the supplymeans, and means under the control of the traverse mechanism for effecting actuation vof said control means to stop the prime mover upon completion of the building of the packages on said spindles.

5. In a machine for fully thro-wing lustrous rmeans for the prime mover, and means for eiTect-' ing actuation of the control means to stop the prime mover upon breakage of any single end being fed from the supply means and upon co-mpletion of the building of the packages on saidl spindles.

JOSEPH P. MCHUGH.

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