US2638936A - Method and means for automatically winding filling bobbins in a loom and supplying them to the shuttle thereof - Google Patents

Description

M y 1953 w..v. GOODHUE ET AL 2,638,936

METHOD AND MEANS FOR AUTOMATICALLY WINDING FILLING BOBBINS IN A LOOM AND SUPPLYING THEM TO THE SHUTTLE THEREOF Filed May 3, 1950 l2 Sheets-Sheet 1 f g y. I.

bdeni'ars: m jazn V'oodlzw erfiEMorl'on y M; Gama? 5 W2.

fli'l'orneys.

y 9, 1953 w. v. GOODHUE ET AL 2,638,936

METHOD AND MEANS FOR AUTOMATICALLY WINDING FILLING BOBBINS IN A LOOM AND SUPPLYING THEM TO THE SHUTTLE THEREOF Filed May 5, 1950 12 Sheets-Sheet 2 7/ lag n5 n 2 l //4 I E L30 n. {297. 302 i E41 25 O 5 $304 I I G 2 I @86 i z I v hfienimr WilljmnVGootillae a" Rob ertEfilorbon 19 0mm, We, @w'uaz v'wafm flfl orneys.

y 1953 w. v. GOODHUE ET AL 2,638,

METHOD AND MEANS FQR AUTOMATICALLY WINDING FILLING BOBBINS IN A LOOM AND SUPPLYING THEM TO THE SHUTTLE THEREOF Filed May 5, 1950 12 Sheets-Sheet 5 HIHIJH I lndenlars:

J "fill am VGoadbue a RoberfiEfllozi'glz by [Um/7m, ay/gaiwdlq v (dz/$02 May 19, 1953 w. v. GOODHUE' ET AL 2,638,

METHOD AND MEANS FOR AUTOMATICALLY WINDING FILLING BOBBINS IN A LOOM AND SUPPLYING THEM TO THE SHUTTLE THEREOF Filed May 3, 1950 12 Sheets-Sheet 4 HHIIHI [n zienfiars:

Wlliam VGaodlzae a oberi'E/llorfian By 1 401a, fl wn M [dd/Ed flltorneys.

y 1953 w. v. GOODHUE ET AL 2,638,936

METHOD AND MEANS FOR AUTOMATICALLY WINDING FILLING BOBBINS IN A LOOM AND SUPPLYING THEM TO THE SHUTTLE THEREOF Filed May s, 1950 12 Sheets-Sheet 5 VI Z'llz'am VG'oodlzue a Raberl'Efl/arian 59 wmm, we," 8mm 1 WMYM liorneys.

M y 1953 w. v. GOODHUE ET AL 2,638,936

METHOD AND MEANS FOR AUTOMATICALLY WINDING FILLING BOBBINS IN A LOOM AND SUPPLYING THEM TO THE SHUTTLE THEREOF Filed May 5, 1950 12 Sheets-Sheet 6 lndenl'or m VGoOdhue a Robet'lfEfMorlon Mai QJaZsm, We, 6 4mm? tau/2 m flfiorne ys.

M y 19, 1953 w. v. GOODHUE ET AL ,93

METHOD AND MEANS FOR AUTOMATICALLY WINDING FILLING BOBBINS IN A LOOM AND SUPPLYING THEM TO THE SHUTTLE THEREOF Filed May 5, 1950 12 Sheets-Sheet '7 Inventors: mlljam V Goodluze afl lzoberl'Efilwion wqfm away/Wm warm fili orneys.

y 1953 w. v. GOODHUE ET AL 38,

METHOD AND MEANS FOR AUTOMATICALLY WINDING FILLING BOBBINS IN A LOOM AND SUPPLYING THEM TO THE SHUTTLE THEREOF Filed May 5, 1950 12 Sheets-Sheet 8 Inventors.-

u fi'lljazn VGoodlzzze a fiobei'lEfllarton 13y v14, @Md/L WIJF M fliiarnqys.

I May 19, 1953 w. v. GOODHUE ET AL 2,633,936

METHOD AND MEANS FOR AUTOMATICALLY WINDING FILLING BOBBINS IN A LOOM AND SUPPLYING THEM TO THE SHUTTLE THEREOF Filed May 3, 1950 12 Sheets-Sheet 9 I Inventors: mlljaln VGoodhlle R a Boberlfil llorfian ywazm. Mpmm ya /QM May 19, 1953 w. v. GOODHU'E ET AL 2,638,936 7 METHOD AND MEANS FOR AUTOMATICALLY WINDING FILLING BOBBINS IN A LOOM AND SUPPLYING THEM TO THE SHUTTLE THEREOF Filed May 5, 1950 12 Sheets-Sheet 1o zuieni'arlsz'" uf'lljiazn VG'oodlzu'e a Roberl EL/llarban UalTm M Q-MM Ada/To itarn eys.

May. 19, 1953 w. v. GOODHUE ET AL 2,638,936

METHOD AND MEANS FOR AUTOMATICALLY WINDING FILLING BOBBINS IN A LOOM AND SUPPLYING THEM TO THE SHUTTLE THEREOF Filed May 3, 1950 v 12 Sheets-Sheet ll 1211721250119: Mllia m I/Gaodhae a Rabez-iEJ/orlun (00.73041. ('01:, end/1L4: Y UmTm fiil'orneys.

May 19, 1953 BBINS IN A LOOM AND SUPPLYING THEM TO THE SHUTTLE THEREOF 1950 w. v. GOODHUE ET AL v2,638,936 METHOD AND MEANS FOR AUTOMATICALLY WINDING FILLING BO 12 Sheets-Sheet 12 Filed May 3,

. In denier-s mlljam VG'oozilz ale RobemEMar By w j'sw, QMQ, GMuL (Ila/7m Fig. 8 is a rear elevational view of the winding means looking in a direction opposite from that of Fig. 4 and illustrating the means for traveling the retriever-clip to return the yarn tor the butt end of the empty bobbin and attach it thereto; and also traveling the cooperating clip for taking the trailing end from the doffed bobbin, severing it and carrying it to the tensioning drum;

Fig. 9 is an enlarged rear elevational view of the clip-operating means showing the windingon drum, its rotating means and also the reservebobbin magazine control-mechanism for arresting the operation of the winding means when said magazine becomes temporarily filled with bobbins;

Fig. 10 is an enlarged top plan view of the tensioning drum showing the ratchet-means for rotating it in dotted lines;

Fig. 11 is an enlarged elevational view of the lower portion of the drum showing the means for rotating it and other details;

Fig. 12 is a greatly enlarged elevational view of the two cooperating yarn-clips indicating the connection between the upper clip or retriever and the yarn-guide for returning the guide to initial winding position;

Fig. 13 is a plan view of the same showing the latching means which connects the retrieverclip with the yarn-guide and also illustrating the bunch-winding means and the swinging bail which cooperates therewith for partially wrapping the yarn around the barrel of the bobbin to insure its engagement in under the prongs of the ferrule by which it is attached to the bobbin;

Fig. 14 is a plan view of the upper yarn-clip or retriever;

Fig. 15 is a plan view of the lower clip;

Fig. 16 is a view showing the upper portion of the tensioning drum, the clip for carrying the end of the yarn thereto, the yarn-trap for re taining the end of the yarn above the drum to insure its proper engagement therewith, and illustrating the clip as passing under the gripping means of the yarn-trap;

Fig. 17 is a similar view showing the gripping means of the yarn-trap released by the clip to retain the end of the yarn as the clip is returned from the end of its travel;

Fig. 18 is a rear elevational view of the yarn trap showing the spring for actuating the gripping element;

Fig. 19 is a part-sectional detail view of the tension-control means for relieving the tension on the yarn at the start of winding a bobbin;

Fig. 20 is a side view of the yarn-clamp for taking the end of a transfer tail from the bottom of the tensioning drum and carrying it into alinement with the eye of the shuttle; and

Fig. 21 is a detail view of the operating mechanism for the yarn-clamp.

In the production of various kinds of fabrics in textile mills the cloth is woven on looms located in a weave-room and the weft or filling-yarn is supplied thereto on bobbins prepared in a separate department such as a winding room. With such previously-used practice the winding ma-' chines must be tended by operatives and the By use of the present inven-' inated, thus effecting a very considerable saving in floor-space, cost of light and heat, upkeep, etc., besides materially reducing labor charges. It will thus be observed that the present invention assumes great importance as its use results in manifold economies to reduce the cost of weaving various kinds of fabric on broad looms.

General organization Referring to the present drawings, Fig. 1 illustrates a portion of an automatic loom at the filling-changing end, showing the automaticallyoperated bobbin-winding means, including bobbin donning-and-dofling mechanism, and the various other instrumentalities for furnishing weft or filling-bobbins to the shuttle or shuttles of the loom. Also illustrated in Fig. 1 is a bobbinstripper, so-called, for receiving spent bobbins ejected from the loom-shuttle, removing the residue of yarn usually remaining thereon in the bunch or reserve winding, and conveying the stripped or denuded bobbins back to the magazine of the winding means for donning them thereon in connection with the rotary winding spindle. One preferred type of such a bobbinstripper is illustrated and described in our prior application for United States Letters Patent, Serial No. 112,362, filed August 25, 1949. The loom may be of conventional type as regards its general organization with its automatic fillingchanging mechanism modified as required for cooperation with the bobbin-winding means; and the automatic winding means may be of a type such as shown in United States Letters Patents Nos. 2,257,651 and 2,302,715. The loom may comprise the usual reciprocating lay 2, shuttle 5 received in the box 6 at the end of the lay, the picker-stick 1 for driving the shuttle from this end of the loom, and the various other instrumentalities generally employed in automatic looms. The automatic filling-changing means for transferring fresh bobbins to the shuttle is described more in detail hereinafter in connection with the bobbin-winding and furnishing means.

Bobbin-winding means As herein illustrated, the winding mechanism is incorporated in the frame 4 of the loom and located above the filling-changing mechanism with its driving means enclosed in a housing or casing 8 and driven by an electric motor 9, also enclosed in the casing. The winding spindle l0 projects from one end of the casing 8 and carries a recessed driving-center or spindle-cup II for receiving the head h of the bobbin b as shown in Figs. 4 and 5. The tip end of the bobbin b is likewise supported in the recess of a rotatable center 2 at the end of a stub-spindle or slidable plunger l3 held in an outboard bearing [5, similar to the tail-stock of a lathe. The outboard bearing i5 is shiftable to retract the outer spindle-center I2 and release a wound bobbin for doffing it from the winding spindle [0; the instrumentalities for effecting the dofling operation being described more in detail hereinafter.

Empty bobbin magazine Mounted above the winding means is a magazine 20 for containing empty bobbins b, which may be of wood or other material in conventional shape with an enlarged head it at one end and a barrel tapering towards its opposite tip end. Preferably, bobbins of a type such as shown in an application for United States Letters Patent Serial No. 76,365, filed February 14, 1949,

axial alinement with the spindle-centers II and I2 for engagement therewith. .At this juncture the outboard bearing I5 is slid forwardly towards the casing 8 to engage the tip end of the bobbin 5 with the outer spindle-center I2 and shift the bobbin axially in the same direction to carry its head in into engagement with the driving spindlecenter II. During this operation of donning an empty bobbin the winding spindle ID is at rest, its rotation having been arrested by the disengagement of the clutch-means described above, but as an empty bobbin is donned between the spindle-centers the movement of the outboard bearing to the left will effect reengagement of the clutch-means to restart the rotation of the spindle.

Ya'rn tension-control The filling yarn :11 may be supplied from any suitable source which is shown in Fig. 1 as a conical package P mounted on a spindle or holder projecting above a shelf 4I upon a column 42 supported from the fioor at the end of the loom. The yarn y leads upwardly from the supply-cone P and feeds through a tension-device 43 comprising a plurality of cooperating disks 44 and 45 rotatable about vertical spindles 45. From the tension-device 43 the yarn leads through a guideeye .41 and thence is drawn down to deliver through an eye 48 in the yarn-guide 25 for attachment to the empty bobbin 5. In order that the yarn may not be stretched, strained or broken when taken up suddenly by the initial rotation of the bobbin b, means are provided for relieving the tension thereon at the start of the winding; such a form of tension-control being shown in United States Letters Patent No. 2,236,459 of March 25, 1941, as operated from the winding machine by magnetic means. In the present form of construction the tension-control is operated mechanically by means actuated from the rod 40 which rotates the arms 23 and 24 for donning the bobbins in connection with the winding spindle. As shown in Fig. 5, the end of the rod 40 carries a small beveled pinion 50 meshing with a larger gear 5| on a shaft 52. The gear 51 carries a pin 49 in its hub projecting upwardly therefrom for engagement with a lug on one arm of a bell-crank lever 53. This arm of the lever 53 is connected to a rod 54 slidable in a bearing 55 formed in the framework above the loom. The upper end of the rod 54 is connected to a Bowden wire 56 which is slidable in a flexible tube 51 reaching upwardly to the tension-device 43. Referring to the detailed view, Fig. 19, the upper end of the Bowden wire 56 is connected to a rockable lever 58 which is pivotally mounted on a bracket 59 supported on the mounting for the tension- disks 44 and 45. A helical spring 80 surrounds the wire 56 between a fixed arm 5! depending from the bracket 59 and the end of the downwardly-extending arm 62 of the lever 58 and normally tends to restrain the latter against the pull of the wire. The lever 58 has a portion 63 extending alongside the tensiondisks with inclined fingers 64 reaching laterally therefrom for engagement under the rims of the upper tension-disks 44. When the Bowden wire 56 is drawn downwardly by the operation of the lever 53 it acts to rock the lever 58 to raise the fingers 64 and thereby lift the upper tensiondisks 44 free from the lower disks 45 to relieve the tension on the yarn feeding between the disks. After the bobbin b starts to rotate and winds on a few coils the rod 40 is turned in the opposite direction to return the arms 23 and 24 to first position. This rotates the. pinion 50 and' turns the gear 5| to release the pin 49 from the lever 53 so that the tension-control lever 58 is rocked by the spring 60 to remove its fingers 64 from under the tension-disks 44. The tensiondisks 44 thus are returned into cooperative relation with the disks 45 to apply the prescribed amount of tension to the delivering yarn y.

The tension-control is also operated during each doffing cycle by means later described to release the yarn so that the wound bobbin is free to drop into the magazine without being restricted by its trailing end before it is severed from the supply yarn. As the yarn y feeds downwardly from the tension-device 43 it draws across an inverted U-shaped thread-bail III in the nature of a drop-wire. The bail I0 is pivoted to rotate when released by a break in the yarn to actuate the stopping mechanism in a manner as usually provided in winding machines.

Manually-operative starting means To start the rotation of the winding spindle I0 after piecing up a broken yarn the outboard bearing l5 must be moved to the left and this may be accomplished manually through the means of a hand-lever II shown in Fig. 5. The hand-lever II is pivotally mounted in a box-like bearing at the right-hand end of the framework and carries a rotary spindle I2 projecting downwardly therefrom. The spindle I2 is surrounded by a helical spring I3 held under tension to normally maintain the lever H in a forward position. On the lower end of the spindle I2 is a cam-piece .14 which is engageable with the end of a slidable pin I5. The end of the pin I5 is adapted to engage the end of a stud I6 projecting from the rearward end of theoutboard bearing I5 whereby when the hand-lever is pressed rearwardly it will rotate the cam-member I4 to force the pin against the stud and shift the outboard bearing I5 forwardly into operative position. This means for moving the outboard bearing into operative position can also be employed when the winding is first started and the bobbin is inserted into place between the spindle-centers; it being unclerstood that the plunger-spindle I3 with its center I2 may be forced back sufiiciently against the tension of the spring 31 as the tip of the bobbin is placed therein to permit the head of the bobbin to be inserted in the recess in the drivingcenter II.

Referring to Fig. 5, the relief of tension on the yarn as the wound bobbin is dropped into the magazine is accomplished by the shifting of the outboard bearing I5 to the right during the doffing cycle. An elbow-shaped lever TI is pivoted on a screw 18 fastened to the bottom of the box-like opening in the framework which encloses the gears 58 and 5I and the bell-crank lever 53. A pin I9 held in a boss on the side of the outboard bearing I5, see dotted lines in Fig. 5, is adapted to strike against a depending portion of one arm of the lever 11 to rock the latter in contraclockwise direction when the bearing I5 is moved toward the right as viewed in Fig. 5. This causes the opposite horizontal arm of the lever TI to engage the lower arm of the bell-crank lever 53, whereby to rock the latter to draw the Bowden wire 55 and operate the lever 58 to lift the upper tension-disks 44 and relieve the tension on the yarn for starting the winding. It will be understood that the spring 60, see Fig. 19, normally tends to rock the tensioncontrol lever 58 to release the fingers 64 from the tension-disks when the pull on the wire 56 is released so that they will apply the prescribed amount of tensionto the yarn. as it feedsto the" bobbin after the winding is started;

Yarn-retriever and transfer-tail clip It has been stated that in starting: to. wind on a newly-donned bobbin the yarn is fastenedthereto by sliding it under the prongs or fingers p on: the ferrule surrounding the barrel of the bobbin. It has also been. indicated that the yarntrailing. from the dotted bobbin is severed and: its end carried outward to. a tensioning drum for holding; it extended from the bobbin when; the latter is transferred to the reserve magazine of the loom. The means for performing these several functions consists" in a pair of slidable clips 83 and 84- arranged to travel first in one direction andthenin the: opposite direction in difi'erent parallelcourses below the winding bobbin. The clips 83' and 84 are shown in detail in Figs. 14 and 1 5 andthe means-tor sliding them horizontal. paths is illustrated in Fig. 9; A; sort of rolling trolley is employed for this purpose, a reciprocable bar 85 moved from a leverfit in the casing 8. being connected to a carriage 87 onwhich are journaled two pairs of spur-gears- The lever 86 maybe actuated by a crank-motion in the casing B as shownby dotted lines in Fig. 8 and. indicated generally by the reference character 88. One pair of gears is constituted by apinion 89. connected to a. larger gear 90, arranged with the teeth of the pinion engagin the-teeth on a-fixed rack 91. I The larger gear 9% of the pair has its teeth in mesh with a rackbar 9-2 which is connected to the upper yarn-clip 83 for sliding, it. The other pair of gears comprises a pinion:% arranged with its teeth in mesh with those of a fi xed. rack. 91 and. connected to a larger gear 91 meshing with a rack bar 94 which is fastened.- to the lower clip 83 for sliding it. Through this arrangement the motion transmitted tothe rod 85 is multiplied to slide the two rack-bars 92 and $14 with an augmented length of traverse so. as to travel the clips in opposite directions at accelerated rates. of speed in the manner and for the purpose as more particularly pointed.- out hereinafter.

Referring to Figs. 14 and 15, the: two clips 83 and- 84: are of substantially the same construction and arrangement but reversed in position with the reentrant openings between. their jaws facing in opposite directions. As shown. in Fig. 14., the upper clip: 33;. calledthe: retriever, consists. in a rectangular mounting tilt of U-shape having a fixed jaw Iii-t formed. by one of its depending side walls which. is flared outwardly at its end. A movable jaw M2 of similar shape is loosely mounted. on horizontal studs its and HM projecting through the sides of. themounting Hill to adapt this jaw to rock: toward the; fixed jaw Hit. A helical spring 865 coiled around the stud Hi3 acts. to force the. movable jaw I02 toward. the fixed jaw wt to clamp the yarnitherebetween as it is entered between the flaring ends of the jaws. A cam-member N16 is sliolably held on the under side of the mounting Hit by means of studs It! and} we projecting through sl'ots- Hi9 and M ll: in said member; The slot. H19. at the forward end of. the. cam-member tee is of shape to cause this end of the: member to be swung later ally as it is slidi forwardon the mounting. lcflfli cam-member [M has. a finger ti 2% projecting forwardly from its slotted portion and? adapted: to engage with a lug. H3 depending; from. the outer end: of: the movable jaw 1 62 to said'jaw away irom thefixedi jaw tll't.v Nuts M4: on the. ends of the studs H1"! and: H18 are set up. against. the ends of aspiring H5 which is formed. with a central bowed" portion bearing against the under face of the cam-member let. to. hold it in place and; apply a slight friction to its sliding motion. The camemember Hi6. slides against. a. plate Ht fase teneolitn. the under side, of the mounting. IUD; the forward: end; of this; plate being. beveled on one side to coact with the edge of the forward finger N2 of the cam niember it. during cooperation of the flaring ends of. the jaws. ifll" and 5'92. The edges. of; the beveled end. of-the plate H8. and the finger t it on the camem'emher' [t6 are sharpened; as: regards the construction or the. clip; 84, for cooperation ire manner of knives or shears to out the. length at yarn held between the jaws lfirl aslater-explained; On the other hand, in. the arrangement. 01?; the. clip. 83 the cammember lilfi overlie the upper face of. the plate i lti with a clearance thesehetween so. thatv these parts. do not. act. as shears. The clip 83: carries a blade-like element. H15 fastened; to. the inner face of. the depending. side of the mounting I'M and formed at its forward. end: with an arcuate extension M13 employed for a purpose later ex.-' plained.

As; before noted; thec1ip=34 is. of substantially the same ccnstrucia'on and; arrangement as that of the clip es; and corresponding. parts are. referred to in the drawings by the same reference" characters. As shown; Figs. 15 and; t6, the clip 8% is provided with means. for opening its jaws HM and let!- without slidingithecaimmernber the. For this purpose a cylindrical cam E28 ismounted to rotate-on; the. stud Hit. The endv of the cam I23 is ferment helicallyi sothat as it is. turned. on the stud Hit it will act against the rearward end of the movable. jaw tea to rock the latter this end of the jaw being. formed at an angle" to: its main portion to provide. for the rocking action. A pin 52}. projects. radially from the cam the for rotating it to open the jaws Ital! and We of the clip M .at the end of its travel whereby to rep. lease the yarn theretrom after: it is. clamped: above the rotary tensioning; drum described later. The pin t2! strikes against a abutment E 216, see Fig; 5', which acts to: rotate'the cam; IfZ ll to open the: jaws of; the. cli at at the end or its travell.

Referring to:- Figs'. "7;,.12.'and.13,.thetwo clips 83 and 8d are operated. during the rioting or the wound bobb-inandi the donning-0t an empty bobbin in. the m-anner'as. neat explained. The clips slide in grooves F22. E23 in. thebase of the frameworkv of the wmding. mechanism, being moved toward and away from each other by the travel: of the rolling; carriage 8:?! under the operation' of the crank-motion 33 previously men.-' tioned. As th-eelips 8ft andtt meetam'd pass'e'ach other they continue their motion to engage the yarn trailing from the defied. bobbin and: cause it to enter between their'jaws. The: yarniiis en tered between the: flaring ends of the jaws it"! and. me.- which; are: them closed; together to time and hold theyarn'; Tn'eacl'os'i-ng ofqthe' jaws of the twoclips is; effiect'ed by; sliding the: cam-members use to cause. them tot release themovable jaw I B2 on each clip and permit the spring L- to force it against the fiir'edljaw. Hi If. This sliding motion or the camemembers tilt is: caused by their en gagement with; beveled; endsof a; pair at rails I24- and I 2e5 e'xtemding horizontally alongthe base of the framework, see Figs. 51,. 1-4.- and As shown. in Figs. 14. and. 1i5 ,.t1te cam-members we have rounded-side portions. BM adjacent. their forward. endswhiclr engage. against the beveled ends of the rails I24 and I to slide the members rearwardly on the clips 63 and 84. As the cammembers I06 are slid in this manner they are rocked laterally to release the movable jaws I02 of the clips for clamping action by the springs I03. As the clips 83 and 34 continue their travel in opposite directions toward their stations the rounded side portions III of the cam-members I06 ride along the rails I24 and I25 with the movable jaws I02 released thereby and acting to clamp the yarn y against the fixed jaws IOI.

Referring to Figs. 12 and 13, as the clips pass each other the cam-member I06 on the lower clip 84 is slid by its contact with the end of the rail I25 to not only cause the closing of the jaws, but also to move the shearing edge of the cammember across that of the blade II6 to sever the length of yarn y leading between the clips. In this way the yarn trailing from the doffed bobbin is severed from the end in the yarn-guide 25 so that it may be carried to the tensioning drum in the manner as later explained.

The retriever-clip 83 which has clamped the end of the yarn y leading down from the yarnguide 25 continues its travel to the left, as viewed in Figs. 12 and 13, and besides retrieving this end for attaching it to a newly donned bobbin b, it acts to return the yarn-guide 25 to initial winding position adjacent the head of the bobbin. The clip 83 is connected to slide the yarn-guide 25 by latching means shown in Fig. 13. The latching means may comprise a slidable bar I mounted on a laterally-extending rest or plate I3I which is fastened to the rearward side of the clip mounting I00. The slide-bar I30 is formed with longitudinally-extending slots I32 and I33 through which engage pins I34 and I35 projecting upwardly from the plate I3I. Pivoted on the pin I34 above the slide-bar I30 is a pawl-like latch I36 formed with a shoulder I3l' engageable with the edge of the vertical arm of the yarn-guide 25, see Fig. 12, to cause it to transmit the motion of the clip 83 to the guide for sliding it. The latch I36 carries a depending pin I38 at its end engaging in the slot I32 of the slide-bar I30 and adapted to slide in an offset, inclined cam-portion I40 of the slot to rock the latch to engage its shoulder I31 with the yarn-guide 25. A screw I4I, see Fig. 13, adjustable through an upstanding lug I42 on the right-hand end of the slide-bar I30 is adapted to strike against an abutment I44 formed by a, vertical shoulder of the framework, see Fig. 5, when the clip 83 reaches the end of its travel toward the right. When this contact takes place the slide-bar I30 will be slid to the left to rock the latch I36 and engage it with the yarn-guide 25 in the manner indicated in Fig. 12. Similar means are provided at the left-hand end of the slide-bar I30 for sliding it in the opposite direction to release the latch I36 from the yarn-guide 25. This means ma comprise a screw I45 adjustable in an upstanding lug I46 on the slidebar I30, see Fig. 12, the head of which is adapted to strike against the end wall of the casing 8 to shift the slide-bar to the right and release the latch I36 as shown in Fig. 13.

Referring to Figs. 5 and 13, the travel of the retriever-clip 83 to the left or toward the casing 8 also performs certain other functions as next explained. Beneath the head end of the bobbin is a loop-shaped wire bail I50 having one end formed as a pivot-stem I5I rotatable in a bearing in the base of the framework, see Fig. 5. A helical spring I52 surrounding the pivot-stem I5I of the bail I50 normally maintains it rocked inwardly beneath the bobbin b. When, however, the yarn-guide 25 is returned to initial winding position by the travel of the clip 83 the clip acts to swing the bail I50 outwardly into the position illustrated in the plan view, Fig. 13. This swinging motion of the clip is effected by the arcuate end portion IIS of the member II! with one branch of the bail I50. The purpose of this action is to assist in carrying the length of yarn 1 leading from the thread-guide 25 down to the clip 83 in under the prongs on the ferrule 1 carried by the bobbin 13, see Fig. 5. The yarn draws down to the clip 83 in back'of the bobbin b as viewed in Fig. 5 and it is desirable that it be wrapped partly therearound as it slides along the barrel of the bobbin so that it will invariably be engaged under the fingers p on the ferrule I.

It has been stated that at the start of the winding a bunch containing a few coils of reserve yarn is wound on the bobbin b adjacent its head h with a shorter traverse than that imparted to the yarn by the yarn-guide 25. For this purpose an element I60, called a bunchbuilder, is provided for holding the yarn to restrict its traverse by the guide 25. The bunchbuilding element I60 may take the form of a flat metal blade pivoted on a pin I6! and having a pin-and-slot connection with means for projecting it into position to engage the length of yarn between the guide 25 and the bobbin. The blade I60 is actuated by means not herein shown in detail but described in the continuing application referred to previously. Suffice it to explain, that as the yarn is carried back to engage it under the prongs p on the ferrule f it will ride across the edge of the bunch-building blade I60 so that when the blade is swung forward it will be engaged therewith to hold it from being traversed to the full extent by the yarn-guide 25. The blade I60 also cooperates with the bail I50 as indicated in Fig. 5 to cause the yarn leading down from the guide 25 to be wrapped partly around the barrel of the bobbin to insure its engagement under the prongs p on the ferrule I.

As the retriever-clip 83 reaches the end of its travel after attaching the yarn to the bobbin 5 the end of the yarn is released therefrom, being pulled out from the jaws of the clip as the bobbin starts to rotate, it being understood that the jaws IN and I02 remain closed by the spring I05. When the clip 83 is again traveled to the right, however, at the start of winding the next bobbin the rounded side II I of the cam-member I06 will ride off from the beveled end of the rail I24, see Fig. 14, and the opposite end of the cam-member will make contact with the end of an adjustable stud I25 held in a lug I27 on a depending portion of the tail-stock I5 to slide the cam-member to open the jaws of the clip.

Trans fer-tail tensioning drum Referring to Figs. 9 to 11, 16 and 17, the tensioning drum I10 which holds the end of the trailing yarn from the doffed bobbin is rotatably mounted in a recess or compartment I'II of the framework below the winding mechanism. The drum I10 is in the form of a sheet-metal cylinder supported by circular disks I72 and I73 at top and bottom of its interior. Projecting from the top of the cylinder I10 are a. series of spaced teeth "5 inclined outwardly in the form of a 13 comb which acts to catch the yarn carried to the drum by the clip 84,see Figs. 16 and 17.

Yarn-detention gripper In order to prevent the end of the yarn y from pulling out or becoming detached from the teeth [T5, means are provided for gripping it at a point within the confines of the comb as shown in Figs. 16, l? and 18. This detention means consists of a flap-like gripper llii having ears at its upper end pivoted on a pin i'li held in a bearing member H8 fastened to the framework at 579. A helical spring iii!) coiled around the pin ill has one end held fast and its opposite end It! engaged against the gripper, see Fig. 18, to normally rock it downwardly. The lower edge of the gripper Hi; is adapted to engage against a resilient pad E82, constructed of spongewubber or the like, across the top of which the yarn is drawn as it is carried toward the right by the clip 84, see Fig. 5. The yarn y is drawn under the lower edge of the gripper I'M; as the latter is swung upwardly during the travel of the clip 84 toward the right as shown in Fig. 16. Pivoted on the pin ill in the bearing I18 is a depending plate 583 with which the clip 84 first makes contact to swing it against th gripper H6 and lift the latter for the passage of the clip thereunder. As the clip 83 approaches the end of its travel it passes beyond the gripper H and releases it to swing downwardly under the force of the spring its to pinch the yarn against the top of the pad 982 and resist its release from the drum ill). During the rotation of the drum lit the fingers N5 of the comb will carry the yarn onto the periphery of the drum under the bail M18, as shown in Fig. 10, to hold it under tension. The drum Elli preferably is covered with a roughened material such as fabric to prevent the yarn from slipping thereon. Means are provided for releasing the end of the transfer-tail from the clip 8 after the latter has connected the yarn to the drum H0. For this purpose an abutment lit at the right-hand end of the framework, see Fig. 5, has a forwardly-projecting finger positioned to engage the pin ill and rotate the cylindrical cam lit to cause it to rock the movable jaw 102 of the clip 8 away from the fixed jaw llll in the manner previously explained. When the clip 85 is returned in the opposite direction for positioning it to pick up the transfer-tail from the next (lofted bobbin it must pass the gripper H6 and this is provided for by an opening I8 3 in the side of the gripper, see Fig. 18. During the further travel of the clip 84 to the left it strikes against the suspended plate i331 as indicated in Fig. 18 to rock the latter outwardly and pass thereunder. Means are provided for releasing the cylindrical cam lEB from the movable jaw M32 as the clip moves to the left toward its station. For this purpose an abutment member ltl', see Fig. 5, is adjustably mounted on the front of the framework by means of a screw i228 engaging through a slot in said member.v The member 12? has a right-angular portion disposed to adapt it to strike against the end of the cam-member iilb on the clip 84 to slide the latter forwardly. The abutment member I27 also has a finger i252 projecting forwardly from its end in position to strike against the pin hit to rotate the cam lit for releasing it from the movable jaw Hi2. In this way the parts of the clip it are reset with its jaws open for engaging the yarn at the next forward travel of the clip.v

Transfer-tail tensiomng drum enclosure As the drum 110 is rotated a bail I98, see Fig. 10, acts to frictionally hold the end of the. transfer-tail against the drum to tension the yarn as it is drawn downwardly therealong during the descent of the bobbin in the reserve magazine. It will be understood that as the bobbins descend in the reserve magazine they drawthe transfertails leading therefrom downwardly along the drum l ill so that upon the release of each bobbin from the magazine its respective transfer-tail is disengaged from the drum to adapt it to be caught and held for threading in the eye of the shuttle as later explained. The drum H0 is enclosed in a two-part cylindrical casing 39 comprising a rearward stationary section 1% fastened to a wall of the framework by screws lbl, see Fig. 10. Attached to this part We of the casing [89 is a tubular bearing 192 enclosing a pin 193, see Fig. 9, on which is hinged the forward section [$5. The section (Q5 is adapted to swing outwardly to open the casing I83 for inspection of the drum I10. A spring, not herein shown, or other suitable means may be provided for holding the section I of the casing !89 closed. The hinged section 1% of the casing its has bearing lugs I96, see Fig. 10, at top and bottom for rotatably mounting the roller-bail I98 in contactwith the periphery of the drum to press the yarn thereagainst.

Drum-rotating means The drum H9 is rotated by ratchet-mechanism located therebelow and normally actuated from the reciprocation of the loom-lay, see Figs. 10 and 11. The drum I16 is mounted for rotation on a vertical stud-shaft 200 journaled in a hearing in the base 2b! of the compartment l'li of the framework of the winding means. The studshaft 208 projects through a bore in the lower disk N3 of the drum H0 and the disk H2 at the upper end of the drum is rotatable on a ShQ'lll-r dered stud 202 projecting downwardly from a portion of the framework. Fastened against a boss or hub 2&3 on the under side of the lower disk H3 is a ratchet-disk 2% formed with relatively fine teeth on its periphery. The ratchetdisk 284. is rotatable on abushing enclosing a shouldered portion of the stud-shaft 2&0 and is secured rotatively with the disk life of the drum by means of two pins 265 passing therethrongh. A pawl 2M3 pivoted to a member 269 which is fast on the stud-shaft lillil is resiliently held in engagement with the teeth on the ratchet-disk 264 by means of a leaf-spring 2H1 fastened to the member 289 at 2H. Mounted fast on the lower end of the stud-shaft 268 is a triangularshaped arm 2H2 carrying apin H3 at its pointed end to which is connected at heiical spring 2M anchored to a pin 215 fast in the base iiiiland projecting downwardly therefrom. The triangular arm 2!!! has a laterally-projecting pointed toe 2l8 at the opposite end from that connected to the spring 2M. One edge of the toe 256 is adapted for engagement by a roller 2% on an oscillatable lever 22! which is pivoted on a pin 222 projecting below the base 281, see Fig. 11. The 'arcuately-shaped edge of the other arm of the lever 22! is positioned for engagement by a hunter 2'23 fastened to the top of the lay 2 of the loom. Through this arrangement the forward motion of the lay 2 causes the-hunter 223 to strike the lever 22! and rock it on its pivot 222 to engage its roller 229 with the toe 216 and rock the triangular arm 212., As before, noted,

the arm 212 is fast with the stud-shaft 200 and thereby causes the pawl-carrying member 209 to be rotated therewith to retract the pawl 208 rearwardly along the teeth of the ratchet-disk 204. Thus, when the bunter 223 recedes with the rearward stroke of the lay 2 the spring 214 will rotate the member 212 and advance the pawl 208 to rotate the ratchet-disk 204 and with it the drum 1'10 which turns in contra-clockwise direction as viewed in Fig. 10. This rotation is intermittent and continuous during the operation of the loom as effected by the reciprocation of the lay 2, the drum 1'10 being turned at a relatively slow speed since the pawl 208 is retracted only a few teeth at a time. To prevent reverse rotation of the drum 1'10 a brake-shoe 225, shown in Fig. 10, as pivoted on a stud 225, has an eccentric face engageable with the interior of the drum cylinder. A leaf-spring 221, shown in Fig. 10, tends to rock the brake-shoe 225 on its pivot so that normally it has substantially no braking effect against the interior of the drum cylinder when the latter is turned in the prescribed direction by the ratchet-means. However, any tendency for the drum 1'10 to turn in the opposite direction will cause the brake-shoe 225 to dog against its interior to resist such rotation.

Means for accelerating drum-rotation It has been found of advantage to initially turn the drum 1'10 to a greater extent for insuring the attachment of the end of the transfer-tail thereto as the wound bobbin is held momentarily at the top of the reserve magazine. For this purpose a rockable lever 230 is pivoted at its upper end to a portion of the framework, see Figs. 8 and 9, to adapt its lower end to oscillate a horizontal lever 231 for actuating the ratchet-means described above. The lever 231 is pivoted on the stud shaft 200 below the base 201 as shown in Figs. and 11. The lever 231 carries a stud 232 projecting upwardly from its outer end with a convex-sided roller 233 journaled thereon and adapted to be engaged by the lower end of the lever 230. One side of the lever 231 is engageable with a lug 234 projecting upwardly from the triangular arm 212, see Fig. 9, whereby the rocking motion of the former will turn the latter to withdraw the pawl 208 a considerable distance rearwardly along the toothed periphery of the ratchet-disk 204.

The lever 230 is released by its actuating means at the end of the motion of the lever to the left as viewed in Fig. 9, whereupon a spring 22:? connected at its lower end and anchored at 220 swings the lever in the opposite direction or toward the right. This latter movement of the lever 230 will release the lever 231 and allow the spring 214 to rotate the member 212 for advancing the pawl 208 to rotate the ratchet-disk 204. This action turns the ratchet-disk at a faster rate for rotating the drum 1'10 more rapidly to quickly draw the end of the yarn in the transfertail between the roller-bail 193 and the surface of the drum. In some instances it may be necessary to rotate the drum manually to wind on the end of a transfer-tail from a bobbin placed in the magazine and this may be accomplished by means of a finger-lever 235 shown in Fig. 10 as pivoted at 236 with its forward hooked end engaged with the roller 220 on the lever 221 which is operated by the hunter 223 on the lay of the loom.

The lever 230 is swung to the left as viewed in Fig. 9 by the traveling motion of the carriage 81 as it operates to traverse the'clips 83 and 84 for the purpose previously explained. For this purpose the carriage 8'1 has a projecting stud 240 at its end adapted to strike against the end of a slidahle rod 241 carrying a collar 242 fastened thereto. The collar 242 is adapted to engage the edge of the lever 230 to rock the latter toward the left as viewed in Fig. 9 to stretch and load the spring 228. When the carriage 8Z reverses its motion to travel back in the opposite direction the lever 230 is released to swing toward the right and operate the ratchet-means in the manner as explained above. As shown in Fig. 9, the lever 230 is connected by an angular link 243 to a bellcrank lever 245 pivoted in a casing 240. The bellcrank lever 245 is rocked by the lever 230 for actuating detention means for controlling the entrance of doffed bobbins into the reservemagazine at the opposite side of the casing 248.

Reserve-magazine for wound bobbins Referring to Figs. 2, 3, 5, 6 and '7, the reservemagazine for wound bobbins is similar in general to the construction used in conventional automatic looms. The present invention contemplates certain improvements for controlling the entrance of each bobbin into the reserve-magazine to detain it on a rest or shelf for an interval while its transfer-tail is being held and tensioned by the tensiomng drum 1'10. The control means further provides for arresting the operation of the winding means when the magazine becomes filled with bobbins. As shown more particularly in Figs. 6 and 7, the reserve magazine, indicated generally by the reference character 250, is provided at the top with a hinged rest or shelf 251 which sustains each bobbin for an instant while its transfer-tail is held by the gripper 1'16 above the drum ll 0 and attached thereto by the accelerated rotation of the latter. The shelf 251 is hinged to the vertical wall of the casing 246, previously referred to, to adapt it to swing downwardly to release the bobbin and allow it to drop down in the magazine 250. The wound bobbins B are thus supplied to the reserve magazine 250 in overlying relationship at the rear of the usual filling fork with the lowermost bobbin in position to be transferred to the shuttle by the transfer-hammer 252 shown in Fig. 2.

Bobbin-detaining means The bobbin-detention shelf 251 is maintained raised in horizontal position by means of a lever 253 pivotally supported on a shaft 254 within the casing 246 and formed with a curved finger 255 projecting through an opening in the forward wall of the casing with its end engaging the under side of the shelf, see Fig. '7. The lever 253 is held in the position shown in Fig. '7 with the shelf 251 raised by means of a spring 249 on its shaft 254, see Fig. 9. After a relatively short interval the doifed bobbin B is released from the shelf 251 by the action of the mechanism contained in the casing 246, see Fig. 9, and previously referred to. The three-armed bell-crank lever 245, previously mentioned, has one of its arms 256 carrying a pin 25] engageable through a slot 258 in a vertical link 259. The upper end of the link 259 is pivotally connected to an arm 260 reaching outwardly from the lever 253 which supports the shelf 251. When the drum-accelerating lever 230 is swung to the left by the travel of the carriage 8'1 the connecting link 243 will rock the bell-crank lever 245 to cause its arm 256 to raise the vertical link 259 and thereby rock the lever 253 to withdraw its curved finger 255 from under the shelf 251.

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