US2663508A

US2663508A - Yarn-winding device

Info

Publication number: US2663508A
Application number: US90943A
Authority: US
Inventors: Norman E Boily
Original assignee: Leesona Corp
Current assignee: Leesona Corp
Priority date: 1949-05-02
Filing date: 1949-05-02
Publication date: 1953-12-22
Anticipated expiration: 1970-12-22
Also published as: DE920474C; GB674362A; CH288369A

Description

Dec. 22, 1953 IN. E. BOILY 2,663,508

YARN-WINDING DEVICE Filed May 2, 1949 7 Sheets-Sheet l as T 45 g li armeys.

Dec. 22, 1953 N. E. BOILY YARN-WINDING DEVICE '7 Sheets-Sheet 2 Filed May 2, 1949 In Uenlor: [\QmanEBqzly y iiioq a,

Dec. 22, 1953 N. E. BOXLY 2,663,508

YARN-WINDING DEVICE Filed May 2, 1949 7 Sheets-Sheet 5 W Inventor.-

MmmEBqzlly y M 7? Q6, g u,

flii orneys.

Dec. 22, 1953 N. E. BOlLY 2,663,508

YARN-WINDING DEVICE Filed May 2, 1949 '7 Sheets-Sheet 4 F 4 blieni ar:

y Narm wzE 50,119

Byww aa,

Dec. 22, 1953 N. E. BOlLY 2,663,508

YARN-WINDING DEVICE Filed May 2, .1949 7 Sheets-Sheet 5 Dec. 22, 1953 N. E. BOlLY YARN-WINDING DEVICE 7 Sheets-Sheet 6 Filed May 2, 1949 In den tar.- MrmarnEB ylaw 6,

Dec. 22, 1953 Filed May 2, 1949 N. E. BOiLY YARN-WINDING DEVICE 7 Sheets-Sheet 7 Patented Dec. 22,1953

YARN-WINDING DEVICE Norman E. Boily, Central Falls, R. I., assignor to Universal Winding Company, Boston, Mass., a corporation of Massachusetts Application May 2, 1949, Serial No. 90,943

13 Claims. 1

This invention relates to winding machines for producing packages of yarn, thread, and other strand materials, and more particularly to a device or attachment for twister-frames and similar machines to adapt them for winding headless packages with tapered or conical ends.

In the following specification and claims the term yarn is used in a general sense to indicate any kind of attenuated material and the work package is intended to apply to any mass of such material whatever its dimensions.

One object of the invention is to provide a device or attachment of the type indicated that may be applied to winding machines or twisting and spinning frames of standard design without material alteration in the construction and arrangement of the parts thereof.

Another object is to provide a device or attachment of the type indicated having means for progressively shortening the traverse of the wound material throughout the building of the package to cause the ends of the layers of winding to he stepped back whereby to shape the mass with tapered or conical ends.

Another object to provide a device or attachment of the type indicated having means for progressively displacing the traversing yarn-guide inwardl from its extremes of traverse throughout its continuous reciprocatory motion to gradually shorten the layers of winding.

Another object is to provide a device or attachof the indicated in which the yarnguide is pivoted to swing away from the axis of the winding package as the mass of yarn is built up and means operated by the receding movement of the guide to cause it to be displaced progressively inward it approaches the ends of its traverse to gradually shorten the length of the layers of winding.

Another object is to provide a device or attach merit of the type indicated which is of simple construction with its parts proof against wear and deterioration and durable over extended periods of use.

Another object is to provide a device of the type indicated which may be applied as an attachment to twister-frames by simply fastening its elements to standard parts of the machine without requiring machining or other operations.

Further objects of the invention are set forth in the following specification which describes a preferred form of construction of the device or attachment and one modified form thereof as illustrated by the accompanying drawings.

In the drawings:

Fig. l is a side elevation of a conventional type of twister-frame illustrating the present improved device or attachment as applied to use thereon;

Fig. 2 is an enlarged front elevation of the essential parts of the twister-frame showing the present device or attachment applied thereto and illustrating the traversing yarn-guide at one end of its traverse at the start of winding with its central position shown by dotted lines;

3 is a similar view showing the traversing yarn-guide at the opposite end of its traverse with the package illustrated as having been wound to substantially its full diameter;

Fig. 4 is a side view showing the parts of the attachment in the position illustrated in Fig. 2 at the start of winding 2, package;

Fig. 5 is a detailed view of the traversing yamguide showing the relation of its parts and its mounting;

Fig. 6 is a view of the mounting for the traversing yarn-guide and the connections for oscillating or rocking it during its traverse with the guide shown in its mid-position of traverse;

Fig. '7 is a similar view showing the same elements with the guide in a position at the righthand end of its traverse;

Fig. 8 is a part-sectional view showing the universal joint between the yarn-traversing guide and its mounting;

Fig. 9 is a side view of a modified form of the device;

Fig. 10 is a front view of the same;

Fig. 11 is an enlarged part-sectional detail view of the guide-mounting;

Fig. 12 is a front view of the modified form of the invention illustrated in Fig. 10 showing the parts in enlarged scale with the yarn-guide in a different position;

Fig. 13 is an enlarged plan view of the camtrack showing the shoe which slides therein and illustrating its connection with the mounting for the yarn-guide; and

Fig. 14 is a greatly enlarged perspective view of the cam-shoe.

The present improved winding device or taperend attachment is herein illustrated as applied to a conventional type of up-twister, so-called, in which yarn is taken from a spool or other supply located therebelow and wound into a self-sustaining package without end heads or flanges. Self-sustaining packages of this type are well known'in the art, being produced by winding the strand material in helical turns about a central-core, usually in the form of a paper tube, with the ends of the wound mass built up in substantial fiat formation without the use of end heads or flanges. Certain textile materials wound in this manner, for example, synthetic yarns such as rayon and nylon, have a more or less glossy surface which tends to cause the Wound coils to slip and slide, particularly at the ends of the package if the latter is not sustainedbyispooleheadsor flanges. It has therefore b,e.co mev the preferred practice 170 10111111 the package with tapered or conical ends instead of flat, perpendicular ends as more generally used in the winding art. It is therefore thepurpose of the present invention to provide a device or attachment which may beapplied to 'useeon spinning and. twisting frames :inir producin '12.

package of this preferred type; that is, haying tapered instead of square endslso that the tendency for the strands to slip andslide down across its ends is obviated. In this preferred :type -:;of

taper-ended, headless package the windings are more stable and the yarneoils are not subject to .sloughing off at the ends voi the package to form overruns or stitches liable to interfere with the unwinding of the yarn from the package in deliveringit .fortransier processes.

Referring to the present drawings, .jFig. 1 illustrates the general construction of an .up twister comprising upright ,frame-members 2 and longitudinally-extending supports .for the mechanism of .the machine. The machine is herein shown as of the double type with twisting and winding mechanisms on eachsideof the frame. but since all of the several winding-devices .or attachments are of the same form of construction only one is shown in connection with the essential parts of the .machine. A pair of tubular rods or pipes 3 extend horizontally longitudinally of the frame of the machine for supporting brackets '5 of inverted V-shape with clamps .6 for fastening them thereto by means of bolts 1 as shown in Fi .1.

The inclined arms .3 ,of the several brackets .5 Spaced l ng the len th of the machine support bearing-

boxes

7,9 tor a horizontal .drive-shaft carrying a seriesof rotary .driving drums 12. The driving drums l2 are drivencontinuously to rotate the packages being Wound Joy frictional contact with their peripheries. ZIhe packagesare usually wound on paper tubes T mounted on cylindrical holders or ,mandrels I5 provided with end gildeeons [6 which are iournaled in bearingsin the sides of a pair of hingedlywmounted arms 11.

{The arms i] are vadapted to .pivot about a rod it supported in a bearing in the upper clamping part 6 of thehraokets 5. .As the yarn is deposited on t e tube o build the cylindrical package JED and as .herein shown it is supported for recipr Each yarn-guide 20 is carried by a saddle-like mounting 28 straddling the traverse-bar 2i and bolted thereto. As shown in Fig. 4 the traversebar 2! is of hollow construction and a pair of bolts 29 extend through one side of the saddle 28 with a plate 30 on their threaded ends held in the hollow of the .bar-to -.fixedly attach the :saddle theneto, see i. The saddle 28 is formed with an upwardly-projecting inclined :arm or extension 32 for mounting the yarnguide 270 which is connected thereto by an arrangement of universal joints as next described.

East in the .32 is a stud 33 having a bifurcated head v$4aon its inner end formed with acentral eslots3:5.,:see Fig. 5. The shank of the stud .33 is formed with a flat-sided portion 38 fitted to "awectangular slot in the arm 32 to prevent the stud from turning in the arm of the mounting or saddle 28, see sectional view, Fig-8. .Anut .3?! screwedonto the-threaded end of the stud 53 against a Jock-washer 38 rigidly secures the .stud .to the mounting .28. Between a :fiange .139 integral with the stud .33 and its flat-sided portion .35 .is .;a cylindrical bearing portion 40 that servesas a pivot bearing for a yoke-member .4! which .carries the yarn-guide 2B. "The yoke-member M has a downwardly- .extending elbow-shaped arm 42 terminating in a bifurcated portioniormed with a relatively narrow slot 43 whichprovidesa connection for rocking'or oscillating the yoke "4| .onits pivot bearing .41} by means .to he ,later described. The yarnguide propercons'ists of .ahent wire arm id terminatingin a loop 45 provided with a relatively narrow groove 116 .in its .curved portion through which the yarn-strandieeds in delivering to the winding package. .Mounted on the .looped end 45of the wire arm .44 .is afia't blade-like memberij l'l whichlfunctions as ase'lf-threading device for picking up theyarn from the surface of the package to direct it into the groove 46 at the end of the guide. The .pick-up blade-member 41 is held on the looped end 45 of the .arm 44 by pertions-oi the :wire engaging through holes at its opposite .endswseeiFig. 5, .andthe blade is formed withatcentralslot .48 in whichthe yarnis caught to direct it .to the slot 46 in the looped end of the wire. ltis to ,be noted that the blade 47 is of peculiar contour at its ends, the under edge of the .blade atone end being inclined upwardly in a relatively long arouate portion .or curve .9; while the opposite end a .reverse curve 59 leading downwardly from the upper edge of the blade. These .two curved ,or inclined edges of the blade provide for a ,plow-likeflaction to adapt the .blade to ride either over or .under the yarn in accordance with the direction of traverse of the yarn-guide '20, to pick up the yarn .in the slot.48 .anddirect it to the groove '45 in a manner and for the purpose .as later more particularly explained.

Theiwire am 44 of. the yarn-guide .20 is supported by a bifurcated fork-member 54 which is pivo .edtorock on the yoke v4| ,in a direction at rightangles to thedirection of oscillation of said yoke.

The fork 54 is provided with hubs '55 at the ends of its legs .56 which .are bored to receive transverse-pins 5.1 and .58 projecting into hearings in cars 59 .at the sides of the yoke 4|. A helical spring Bil coiled-around the pivot-pin 51 with one end .6! heldagainst the edge of the cross-member .of the yoke 4| has its opposite end 62 engaging a slot in the .end of the bearing hub 55, thus tending to swing the fork '54 in a direction to cause the looped end 45 of the yarn-guide 20 to bear against the surface of the package being Wound.

The wire arm 44 of the yarn-guide is connected to the fork 54 with its offset end 63 inserted through a hub-like bearing 64 at the closed end of the fork, see Fig. 8. Preferably, the bore of the bearing 64 is lined with a bushing 65 of wear-resisting or self-lubricating material to reduce friction during relative oscillation of the fork 54 about the end of the wire. To prevent the yarn-guide 20 from rocking with the fork 54 and maintain its curved end 45 normally fiat against the surface of the package, a holding member or stabilizer 66 is provided. The wire arm 44 of the yarn-guide 23 is held fast in a pair of bearings 61 on the stabilizer 6t straddling the bearing 64 on the fork 54, the rod being held from turning in the stabilizer hearing by a setscrew 68, see Fig. 8. The stabilizer 66 underlies the rod 44 with one end projecting in under the slotted head 34 of the fixed stud 33 and a pin it projecting upwardly therefrom engages through the slot 35 in the head. Through these connections the yarn-guide 20 is prevented from rocking or oscillating laterally during the oscillation of the yoke 4|.

It has been stated that the yoke 4! is pro vided with a depending arm 42 formed with a slot 43 for connection with the means for oscillating the yoke. One preferred oscillating means for this purpose may consist in a rockable lever 15 pivoted to the saddle 28 which is fastened to the reciprocating traverse-bar 2!. The saddle 28 is formed with a skeleton arm 76 projecting downwardly at an angle from the top of the traversebar 2| and terminating in an ear in which is fastened a pivot-stud H, see Figs. 4 and 7. The pivot-stud 'Il may be riveted through the end on the arm 15 to project through a hole adjacent the upper end of the lever 15 with washers 18 at either side of the lever to provide for its freedom of oscillation about the stud. The outer washer 78 may be held on the end of the pivo stud 71 by means of a hairpin-shaped wire l9 having its legs engaging in a groove in the end of the stud. Riveted through the upper end of the lever is a shouldered stud or pin 80 disposed with its end projecting through the slot 43 in the depending arm 42 of the yoke 4|. Fast in the lower end of the lever 75 is a larger pivotstud 8| held with its shouldered portion 82 clamped against the side of the lever by means of a nut 83 and lock-Washer 84 as shown in Fig. 4. The stud Bi is adapted to slide in a vertical slot 85 in a fixed member 85 fastened to the main frame of the machine, see Figs. 3 and 4. Referring to Figs. 3 and 4, the member 86 is of platelike form extending angularly in parallel relation to the lever 15 with its horizontal foot 81 fastened to an angle-iron 88 supported on a horizontal cross-member 83 of the frame of the machine. The member 66 may be fastened to the upper flange of the angle-iron 88 by means of bolts st and nuts 9! shown in Figs. 3 and 4. A wire arm 92 may likewise be fastened to the angle-iron 88 by the bolts 98 to extend outwardly from the frame of the machine with its end terminating in a pigtail-guide 93 for the yarn y as it feeds upwardly to the winding mechanism.

Above the pigtail-guide 93 a pair of

horizontal rods

94 and 95 are supported by the bracket 23 in position to further guide the yarn y to direct it at right-angles at the top in a length leading through the slot 48 inthe blade 4'! and the groove 48 in the looped end 45 of the yarn-guide 20. As

shown in Fig. 1, the yarn 3 usually delivers from a spool S held on a spindle s which may be mounted on some fixed part of the frame, not herein shown in detail. It will be understood that the several yarn-guides 20 at either side of the twister-frame are traversed longitudinally of their respective package holding spindles or mandrels i5 by the reciprocation of the traverse-bar 21. Any suitable means suchas a cam or the like may be employed for reciprocating the traverse-bar 2i these parts of the mechanism of the machine not being shown or described herein as they are of usual construction well-understood by those versed in the art. The construction and arrangement of the winding mechanism of one preferred embodiment of the invention having been describedin detail the method of operation of the complete apparatusis explained as follows:

To prepare the machine for winding, a supply spool S, Fig. 1, is placed on the spindle s and a length of yarn y drawn upwardly therefrom is threaded throughthe pigtail-guide 93, carried across the

rods

94 and 95, thence drawn inwardly and its end attached to the tube 'I on the mandrel or package-holder I5. With the self-threading yarn-guide shown in Figs. 2 and 3 it is unnecessary to place the yarn in the guide, this bein accomplished automatically in th manner next explained. To start the winding the arms 11 supporting the mandrel l5 are swung downwardly to place the periphery of the cop-tube T in contact with the circumference of the driving drum l2, whereupon the mandrel and the tube T carried thereby will be driven rotatively in the direction indicated bythe arrow in Fig. 1. It has been stated that the yarn-guide 20 is traversed longitudinally of the package-core or tube T by the reciprocation of the traverse-bar 25 with the yarn y takenup by the rotation of the tube driven by its contact with the driving drum I2. Referring to Figs. 2 and 3, should the yarn be attached to the tube T at a point at the left of the yarn-guide 20, immediately the guide starts to traverse toward the left-hand end of the tube the blade 41 will ride over the yarn, due to the inclined under edge of the blade, whereof to cause the yarn to enter theslot 48 and be directed into the groove 46 in the looped end 45 of the wire 44; thus resulting in the guide pickin up the yarn to traverse it back and forth on the tube. On the other hand; if by chance the yarn should be attached to the tube T at the right of the guide 20 a different operation is required; that is, the threading blade 41 must pass under the yarn from below as the guide moves to the right so that at its next stroke to the left it will engage the yarn in the slot 48 in the manner as just previously explained. The reason for this is that the arm 44 of the yarn-guide 26 as it moves to the right would prevent the yarn from passing under the blade 41 and into the slot 48. Consequently, the blade 47 must first be caused to pass under the yarn to prevent it from being obstructed by the arm 44 and after the blade has passed beyond the yarn the next traverse of the guide toward the left will cause the blade to ride over the yarn to pick it up in the slot 48 and direct it into the, groove 46. In this way the yarn is automatically threaded into the yarnguide 28 in Whatever position it may be related thereto when attached to the tube T. In other circumstances, if the yarn breaks at any point during winding and is pieced-up on the surface of the package either at the left or right of the 7 guide 26 the same threading operation willbe accomplished automatically.

During the reciprocation oI thetraverse-bar 21 the saddleormoimtingfl thereon and the yarnguide 20 "carried by the yoke 41 are traversed back and forth longitudinally of the axis of the package-holderormarrdrel f5. Referring to Fig. 2, as the traverse-bar "2i carries the yarn-guide 26 to the left from'mid position/(illustrated by dotted lines in this view) the yoke '41 on which the guide is pivoted will be rocked or oscillated into the position shown by full lines in Fig. 2. This rockmgaction'of the yoke M and the guide 29 is euected by the oscillation of the lever 15 about its pivot H on the mounting 28. As the mounting 28 uno'ves toward the left the pin 88 at the upper end or the lever 15 is swung towards the left and through its engagement with the slot 43 in the'depending arm 4-2 of the yoke 4| it will rock the yoke in the opposite direction; the lower "end of the lever 15 being held to rock about thepivot-stud 31 which is free to slide up and down in the vertical slot'85 of the stationary or fixed plate member 86. A similar rocking action or oscillation of the yoke '41 and yarnguide 29 takes place as the traverse-bar 2| is reciprocated in the opposite direction or from left to right, the rocking of the .yoke then being in the reverse direction as indicated in Fig. 3 of the drawings. Throughout the winding of a package this oscillation "of the yoke ll and the fork iii carrying the guide 20 is continued, first in one direction and then in the opposite direction as the yarn is'traversed to deposit it in helical coils surrounding the tube T. The yarn is thus distributed in layers of predetermined extent at the start of winding, the length of its traverse being in accordance with the proportion of the parts-lastdesoribed. To change the length of traverse of the yarn for producing packages of different sizes, levers of different lengths may be substituted for the lever 15.

It has been stated that the object of the present invention is to provide a machine for winding headless packages with tapered or conical ends to render them more stable and prevent the coils of winding from sliding over or sloughing off over the ends of the packages. To effect this tapering of the ends of the package it is required that the layers of winding be progressively shortened from start to finish of the package and this action is accomplished with the present device or attachment in the manner as next explained. Referring to Figs. 1 and '4, as the layers of yarn ar built up on the tube T the package-holder or mandrel 15 will be caused to rise away from the drum 12 with the supporting arms IT for the mandrel swinging upwardly about the pivot I'8. Also as the package grows in diameter the yarnguide'Zil will be caused to swing away from the axis of the package as it pivots about the pins and 58 by means of which the fork 54 is connected to the oscillating yoke 4|. At the same time, the coiled spring 60 on th pin 5! acts to resist this outward swinging motion of the yarnguide 20 whereby to maintain its looped end 45 bearing constantly on the surface of the winding. If not restrained, the yarn-guide including the blade ll and the looped end 45 of the wir arm A l normally would be locked with the oscillation of the yoke 4|, but to prevent such action the stabilizer 66, see Figs. 5 and 3, comes into play to maintain the end of the guide and the lower edge of the blade 41 substantially parallel with the'surfa'c'e oi the winding. It has been explanned that the arm 44 of the yarn-guide 2a is mounted free to rotate in the bearing 64 of the fork '54 and through the connection of the stabilizer '66 with the bifurcated head 34 of the stud 33 fast in the mounting '28 the guide 20 is prevented from being rocked with the oscillation of the yoke 4i. Stated another way, through the engagement of the pin E9 on the stabilizer 66 with the slot 35 in the head 3% of the stud 33 the guide-arm 44. is prevented from turning with the bearing 64 on the fork 5d and consequently the guiding portion of the arm and the blade 48 are maintained level with the proper contact against the surface of the tube T and the layers of winding being deposited thereon.

The progressive shortening of the length of layers in the package takes place due to the recession of the yarn-guide v2&3 outwardly away from the axis of the package being wound as it pivots about the axis of the pins 5'? and 53. That is, as the yarn builds up on the tube T and the guide 20 swings outwardly its amplitude of traverse willbe shortened since the end of the guidearm 44 where the yarn'is directed onto the package by the groove 46 will move in a plane at rightangles to the axis on which the fork 54 pivots.

tated more simply, the delivering end 55 of the yarn-guide 20 will be displaced in a direction toward the longitudinal center of the package being wound or, in other words, it will be swun inwardly from the ends of the tube T to gradually reduce the extent of its traverse and thereby progressively shorten the layers of winding so that the package will be built up with tapering ends as illustrated in Fig. 3 of the drawings. Fig. 3 of the drawings illustrates the yarn-guide 20 at the right-hand end of its traverse at the completion of the package and in this view the pick-up blade 4'5 appears to be tilted or canted from its position shown by dotted lines in this view. The reason for this apparent tilting of the guide is that it is being viewed at an angle and actually the lower edge of the blade ll will still be parallel with the surface of the package.

It will be understood from the above explanation that the packages P represented in Fig. 3 will thus be formed 'of superimposed layers with the first layers of maximum length and succeeding layers progressively shortened from start to finish of the winding.

Figs. 9 to 14 of the present drawings illustrate a modified form of construction of the invention which in some respects is simpler than that first described. As shown in Figs. 9 and 10, the winding mechanism is adapted to be applied to a conventional type of up-twister, spinning frame or like machine having a main framework including uprights I06 with horizontally-extending tubular cross-rods 182 at the top. The driving drum IE3 is mounted on a horizontal shaft Illl journaled in bearing boxes M35, as in the previously-described machine, and a longitudinallyextending traverse-bar I96 is likewise supported on rollers 10! for reciprocation in a horizontal path on the frame. The winding mandrels I68 for supporting the cores or tubes T on which the packages are wound are mounted somewhat differe'ntly from the arrangement first described, the gudgeons IE9 at the ends of each mandrel l 38 bein 'slidable in vertical grooves Ht formed on the inside of upright members Ill supported by horizontal arms H2. The arms H2 project forwardly from clamps H3 fastened to the tubular rods I02 by bolts H4. Through this arrange ment each package-holder or mandrel B8 is 9 adapted to rise away from its driving drum I03 as the yarn is built up on the tube T.

Bolted to the front of the frame-members III are horizontal arms H5 which project forwardly therefrom for supporting certain parts of the winding mechanism as next described. Extending laterally between the arms II5 and rigidlysupported thereby at its ends is a plate I formed with an arcuate can1slot I2! constituted as a track for rocking the mounting for the yarnguide as later more particularly described. The arms I I5 have pivoted thereto at their outer ends a pair of elbow-shaped members I22 reaching inwardly therefrom and supporting a roller-bail I25 adapted to bear against the surface of the layers of yarn wound on the tube T. Also extending between the members I22 i a guide-rod 3'25 spaced above the roller-bail I25, these elements formin a straight track for the yarnguide I which is reciprocated longitudinally of the package above the bail. The yarn-guide I30 is in the form of a bifurcated wire arm terminating in a V-shaped crotch I3I through which the yarn feeds and having a loop I32 at its opposite end with a screw I33 inserted therethrough for fastening it to a forked mounting I35.

The mounting I35 may be of sheet-metal in bifurcated form with offset legs I36 terminating in ears I31, see Figs. 11 and 12. The ears I31 are perforated to receive a transverse pin I38 for pivotally mounting the guide I38 to swing about the axis of the pin as its guiding end recedes from the axis of the package during its growth'in diameter. A spring I34'coiledabout the pin I 38 tends to'rock the guide toward the package to maintain the roller-bail I25'bearing thereagainst. The pivot-pin I38 has its ends mounted in the forwardly projecting arms I39 of a rockable mounting or yoke I40 which'is pivctally connected to the transverse-bar liifi'for oscillation by the-cam-plate I29. Referring to Figs. 11 and 12, the connection between the'yoke I48 and the reciprocating traverse-bar I06 consists in a pin or stud I4I projecting from the yoke through a vertical slot I42 in 'a vertical plate M3 fastened to the traverse-bar-HIB by a screw I44. The pin I4I-also projects rearwardly from the yoke I 40 through a shoe-I45 slidable in the slot I2! of thecam-plate I20. A reduced portion of the shoeI45engages-in the slot I2I of the cam-plate I20-anclis flanged at its end to abut the back of the plate. The-shoe I45- is fastened to the yoke I40 by" means of screws I46inserted through the-back of the yoke and threaded into the shoe, seeFig. 13. 7

Mounted on an arm I50 bolted to the framemember 506 is a pigtail-guide I through which the yarn y feeds upwardly from-itssupply spool, not shown, to drawacross the rod I51 and thence lead acrossthe wire'guide-rod I25 and down through the crotch I3I at the end of the yarnguide I30 to feed around the bailI25 to the winding package. w

The method ofoperation of this last-described construction of the device is as follows: :As the traverse-bar I 06 is reciprocated longitudinally of the machine the plate-I43rigidly attached thereto is connected toreciprocate the yoke I40 through means-of the stud I4I engaging through the slot I42 in the -plate. The shoe I45 on-the yoke I40 is thus caused to slide back and forth in the slot I2-I of theicam-plate I20- with a-rocking motion impartedthereto which oscillates the yoke I40, first inonedirection and then in the opposite'directionas the yarn-guide I30 appreaches the ends ofits traverse. The oscillation of the yoke I40 is transmitted to the yarnguide I30 to rock its guiding end toward the longitudinal center of the package as the guide moves away from this center at the ends of its stroke in either direction; similarly to the action of the oscillating thread-guide of the firstdescribed construction. Also, as in the method of operation of the first-described embodiment, the yarn-guide I30 is swung about the pivot-pin I558 by the receding movement of the roller-bail I25 from the axis of the package as the winding increases in diameter. Consequently, as the yarn-guide I36 swings upwardly on its mounting or yoke I46 it is caused to toe-in toward the iongitudinal center of the package asit approaches each end of its traverse. This canting or toeing-in action of the yarn-guide I30 increases as it swings upwardly with its swinging motion being in a plane inclined to the axis of the package due to the oscillation of the guide at its mounting on the yoke I40. In this way, the amplitude of traverse of the guide is progressively reduced as the package builds up on its core T whereof the layers of winding are gradually shortened to form the package with tapered ends. It will therefore be understood that in either form of construction ofthe invention the traverse of the yarn-guide is progressively reduced in extent so that taper-ended packages may be wound one after another; it being only necessary to thread the yarn into the guide and place it in position adjacent the surface of the cop-tube T to start the winding operation.

It will be observed from the foregoing specification that the present invention provides a novel form of construction of a winding device which operates in a new way to-produoe the desired result of winding packages with tapered ends. While the invention is illustrated herein in a preferred embodiment with one modified form of construction, it is to be understood that further changes may be made in the structure and arrangement of the parts of the device without departing from the spirit or scope of the invention. Therefore, without limiting myself in this respect, I claim:

1. In combination with a driving drum, means for mounting a package for contact with the driving drum to adapt it to be rotated thereby with its axis receding from said drum during the growth of the package, a reciprocating traverse-bar, a member pivotally mounted on said bar to rock in a plane substantially parallel to its path of reciprocation, a yarn-guide pivoted to the rockable member to adapt it to swing about an axis disposed substantially perpendicular to the axis of said rockable member, means for rocking said member during the reciprocation of the traverse-bar to cause the yarn-guide be displaced inwardly from the ends of its normal traverse as it swings about its own pivot, and means to prevent the yarn-guide from turning relative to the surface of the package during the rocking of said member.

2. In a device for winding taper-ended packages, the combination with means for supporting and rotating a package and a traverse-bar reciprocable longitudinally of the package, of a yarn-guide for distributing yarn on the package comprising an arm with a guiding groove at its end, an oscillating member connected to the traverse-bar and pivoted torock on an axis crossing the plane of movement of the traverse-bar,

a mounting forthe yarn-guide arm pivoted to the ii oscillatin member to swing; about an axis at right angles to its axis of oscillation, means for meuntingthe yarn-guide arm for relative turn mg motion ii the monnting'f'stabilizing 'means for preventing the yarn-guide armfrom turning in its mount-ingduring the rocking motion of the oscillating member, and means for oscillatingsalid member whereby the swinging movenieiitofthe yarnguide arm thereon during the gro thin diameter of the pacgage will-"cause it to moye a planeinclined; to its path of movement at the'ends of its traverse to progressively displacethe slottedend 'of the guide, inwardly firomthe ends of; its normal traverse during the progress of the winding-to form the package with eR f t nd In a winding device embodying means for supporting and rotating a package and a longitudinal-ly -ifeei-procating traverse-bar, the combination therewith of an oscillating memher reciprocated by said traverse-bar, a yarn-guide for distributing the yarn on the package, means for mountingthe yarn-guide on the oscillating memabo'ut airaxis disposed at right.- angles to its axis" of oscillation, and a lever pivoted to, the traverse barj with one end connected to. the oscillating member and; its opposite end pivotally heldto causejit, to rock the oscillating member during its reciprocation, said yarn-guide beingadapted to swing; about its. pivot in a plane ncl ned w t irec i n Qf. c pr c i n during tncn c li tion t l'member whereby to splace it inwardly from the. ends of; its normal tr y rs delim t th ialfn ayers of; gradually red ed extent, to buil-dthe package with tapered ends. '7

A iw ndi' e. msc n smwmr ng m n f i a i Tq i en a somi i d yarri'thereon,- traverse-bar reciprocaple longitudinally-"ofthe axis of said package-core, a member connected to 'said traverse-bar for reciprocation thereby; amounting pivoted to, said member; to adapt it to oscillate about an axis at} right ai-igles to the planef reciprocation of 'the-traverse bar, a yarn-guide pivoted on said mounting swing about an axis at right-angles to its axis of oscillation, a lever pivoted to the traverse barand provided means at one end fonpivotal-ly connectingit to the mounting, a fixed havingasl'ot; anda pivot stud the opposite end'oPthe lever slidahle in said slot-for-jconnectingf it'tothe fixed member to cause; the lever; to rcckithe mounting during the rea ocation of 'the traverse-bar;

5r, I n'a winding-"mechanism, means for sup,- porti-ng and "rotating '2, I packag a reciprocating m m er; a d k le: m mb r, ivb d o i eciprocatingmember to rock; about an axis perpendiciilar to its direction of reciprocation, a

hi: to swmg member 'pivotedito the; rockable member to swing about; an'axi's at-right -anges'to the axis of said rockable member, a, yarn-guide supported by saidswingablemember to adapt'it to recede from the axis of the package being wound, and alever c nncc sdto. he. rqc sa mmber. q o llate it an nwardiy romthe en s Q ts..n.. rm l't av r to t pro r ive eduction in itsi'amplitude, of? traverse as the rackaeemqr s sin iameter 6 wringing, der m an I9 sup o t n en i c ating. packa e. a as m t ng." m m heria me be n r tedit aid; reciproc ng. mam.- q .1: an xissuhstant alh pe pe dicircc i'qn oij s recipr cati n. a. uid

supporting member pivoted' to said'rockable memher to'swing: about axis at right-tangles. to the axis of said rockabl'e member, a 'yarneguid'e sup.- ported by said las t named member to adapt. it to turn therein to maintain the end of. the guidebearing fiat against the surface of the package, means for retaining the guide in said flatiposi'e tion during the rocking motion of the rockahle' member, and means to rock said rockablememoer as the guide swings on its pivot. during the growth in diameter of: the package to cause. said guide to move in. a plane inclined to. the. axis. of the package to. gradually reduce its amplitudev of traversing motion and. progressively shorten the layers of winding to. buildv the package with ta.- pared-ends.

'7. In a winding eevice, the. combinationwith means, for supporting and rotating; a package; of a reciprocating member, meansv to reciprocate said member longitudinally of, the. axis of the package, a rockable. member pivoted to they reoiprocating member on an. axis. disposed trans.- versely of the direction of .its. reciprocation, a member pivoted to said. rockable member on an axis. crossing the. axis of said rockable member, an arm extended from said pivoted member and provided with yarn-guiding means, at its. end adapted to distribute the yarn on the-package, a lever pivoted to the reciprocating member with one end connected. to rock the rockable. member, and means for retaining the. opposite end of' said. lever to adapt the motion of the reciprocating member to oscillate. the lever and rock the rockablemember.

8. In a winding device, the combination with means for supporting and rotating. a. package, of a reciprocating member, a yoke'pivoted to said reciprocating member to. adapt. it to rock about an axis extending transversely of the direction of reciprocation of said member, a fork pivoted to said yoke to swing about an axis extending at right-angles to the axis of said yoke, anarm connected to said fork and extending therefrom with yarn-guiding means at its end, a lever pivoted to the reciprocating member and having a pivot at its end engaging a slot in the yoke, a stationary slotted member, and a stud at the opposite end of the lever engaging the slot in the stationary member.

9. m a winding-device, in combination with means for supporting androtating a package and a reciprocatingmember, an arm pivoted to said member to adapt its end; to swing toward and away from the axis'of the package, means at the end ofsaid armfor guiding theyarn totraverse it longitudinally ofthe package; and a threading elementadjacent the guiding end of the arm, saidthreading element having a centralslot on its under side to adapt the yarn to enter thereinto andformedwith an upwardly-directed edge atone end to adapt it to ride over the yarn to cause it to bereceived in the slot, said threading' element having a reversely-directededge at its opposite end to adapt it to ride under the yarn to pass therebeyond s'o-"tha-t. during thereverse reciprocation oi the guidethe oppositeend'of said element will ride over the yarn and en-gage it in the slot in said element.

10. In a winding device, the combinationwith means for supporting and rotating a package of a traverse-member, a yarn-guide hinged to said traverse-member and projecting. towards the package witha guiding groove at its end, and a pick-up threading; element for thefya-rn constituted as a bladehavinga slotenteri-ng from its lower edge in 'alinement with the groove-m the guide, one end of the blade being formed with its lower edge sloping upwardly to adapt it to ride over the yarn to cause the latter to enter the slot in the blade and be directed into the groove in the guide, the opposite end of said blade being formed with its upper edge sloping downwardly to adapt this end of the blade to plow under the yarn to pass thereby when the guide is traversing in one direction so that the blade will ride over the yarn as the guide traverses in the opposite direction to catch the yarn and direct it into the groove in the guide in the manner as first explained.

11. In a winding machine, in combination with means for supporting and rotating a package and a traverse-bar reciprocable longitudinally of the package, a yarn-guide comprising an arm hinged to the traverse-bar and projecting therefrom toward the package, said guide formed with a groove at its end for receiving and guiding the yarn to traverse it on the package, and a selfthreading pick-up means adjacent the guiding end of the arm comprising a blade projecting laterally therefrom and formed with a central slot alined with the groove in the guide, said blade having its lower edge inclined upwardly at one end and its upper edge inclined downwardly at its opposite end whereof when the yarn-guide is reciprocated in one direction along the periphery of the package the pick-up blade will ride over the yarn to receive it in its slot and direct it into the guiding groove, and when the guide is moved in the opposite direction the blade will plow under the yarn to pass therebeyond so that it may be picked up by the slot in the blade at the next reverse traverse of the yarn-guide.

12. In a mechanism for use with a winding device embodying means for rotating a package and a reciprocating traverse-member, the combination comprising an oscillating member adapted to be reciprocated by said traverse-member, a yarnguide for distributing yarn on the package, means for pivotally mounting the yarn-guide on the oscillating member to swing about an axis normal to its axis of oscillation, and a lever adapted to be pivoted to the traverse-member with one of its ends connected to the oscillating member and its opposite end pivotally held to cause it to rock the oscillating member during its reciprocation, said yarn-guide being adapted to swing about its pivot in a plane inclined to its direction of reciprocation during the oscillation of said member whereby to displace it inwardly from the ends of its normal traverse to deposit the yarn in layers of gradually reduced extent to build the package with tapered ends.

13. In a mechanism for use with a winding machine having means for rotating a package and a reciprocating member, the combination comprising a yoke adapted to be pivoted on said reciprocating member to rock about an axis extending transversely of the direction of the reciprocation of said member, a fork pivoted to said yoke to swing about an axis extending at right-angles to the axis of said yoke, an arm connected to said fork and extending therefrom with yarn-guiding means at its end, a lever adapted to be pivoted to the reciprocating member and having a pivot at its end engaging a slot in the yoke, a slotted member adapted to be fixedly mounted, and a stud at the opposite end of the lever engaging the slot in said slotted member.

NORMAN E. BOILY.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 1,063,235 Adsit June 3, 1913 1,900,480 Bartholomew Mar. 7, 1933 2,178,263 McKean Oct. 31, 1939 2,200,388 Finlayson May 14, 1940 2,206,582 Shipman July 2, 1940 2,249,384 Hitchcock July 15, 1941 2,395,522 Thomas Feb. 26, 1946 2,475,895 Hill July 12, 1949' FOREIGN PATENTS Number Country Date 43,973 Germany July 26, 1888 46,975 Germany May 10, 1889