US2022572A

US2022572A - Winding machine

Info

Publication number: US2022572A
Application number: US722771A
Authority: US
Inventors: Edward F Parks
Original assignee: Leesona Corp
Current assignee: Leesona Corp
Priority date: 1934-04-27
Filing date: 1934-04-27
Publication date: 1935-11-26
Anticipated expiration: 1952-11-26
Also published as: GB437556A

Description

E. F. PARKS WINDING MACHINE Nov. 26, 1935.

3 Sheets-Sheet 1 Filed April 27, 1954 aZ ZZ'arne a.

E. F. PARKS WINDING MACHINE Nov. 26, 1935.

Filed April 27, 1954 5 Sheets-Sheet 2 Nov. 26, 1935. EFF. PARKS 2,022,572

WINDING MACHINE Filed April 27, 1954 5 Sheets-Sheet 3 Patented Nov. 26, 1935 Edward F. Parks, Providence, R.-

l.,' assignor to Universal Winding Company, Boston,-Mass.,' a corporation'of Massachusetts i Y This invention relates to winding machines for winding packages of yarn, thread and the like. and particularly to a device or attachment for adapting the machineto windon a spool, bobbin or yarn-carrier having a tapered head with the layers of winding arrangedconcentrically and disposed to follow the incline of the head-of the spool or bobbin whereby the outer; end of-lthe package assumes a pointed or tapered shape. g

,One object of the invention is,to-proyide-a; device or attachment of the type indicatedwhich may be readily applied to Windingmachin'es .of standard design without material alteration in the construction or arrangement thereof,

Another object of thein vention is tozprovide a device or attachment of the typeindicated hav-. ing means for-axially shifting. the spoohbobbinor carrier on which the package iswound todis place the layers of winding longitudinally of the spool with the shifting means controlled-from the growth of the wmdi ngwithout dependence upon or connection with the traversing thread-guide of the machine. Y l

Another object of the invention is to provide a device or attachment of the type indicated wherein the shifting .of the spool, bobbin or carrier is effected automatically by means contacting, with the winding and movable by the increase in diam eter thereof without exerting undue pressure and friction upon the mass being wound.

Another object of the invention is to provide a device or attachment of the type indicated. wherein the spool, bobbin or yarn-carrier is shifted by the action of a single member in the nature of a bell-crank lever moved by and with the growth in the winding.

Further objects of the inven ion are set forth in the followingspecification which describes a preferred form of construction of the winding device or attachment, by way of example, as illustrated by the accompanying drawings. In the drawings:

Fig. l is a side elevation of a winding machine of well known type illustrating the present improved device or attachment as applied to use therewith;

Fig. 2 is an enlarged plan view of the present improved device or attachment showing it in connection with the spindle and traversing thread-guide of the'winding machine and illusirating the position of the parts at the start of winding a package;

Fig. 3 is a similar plan-view showing the position of the parts at the completion of the package;

Fig. 4 isan end view of the winding-spindle showing the relation of the parts of .the present device thereto; and e Fig. 5 is a side elevation of a portion of the windingmachine viewed from the rear-and show- 5 ing the present device with ,thecontact-roller raised'away from the winding-spindle to facilitate a bell-crank lever whichds adapted to be. rocked by m ns header; wart-ma being wound to h ft t mandrel, Mdlsnlwflh a e winding axially ,.of the spool; bobbin or carrier. For convenience. of description, the I wound spool, bobbin or the like is hereinafter referred to as a Spackage";. ,the- I terial being-woundinto the package, whatever its nature, is designated yarn; and the carrier for the package called a tubef. It is to be understood, therefore, that these terms are to beinterpreted severally in their generic sense as indicating any type of thread package, all kinds of strand material, and any preferredshapeof core or carrier on which the material is wound.

It has heretofore been proposedto provide an attachment for winding machines having means controlled by the growth ofthe yarn mass being wound to shift the package longitudinally to displace the layers of winding axially thereof. The purpose of such devices is to form the package convexly at one end with a correspondingly concaved opposite end, in some cases without the employment of a cop-tube or carrier having a tapered head or base, as in winding certain forms of cone packages; and in other instances, with the use of a bobbin, cop-tube or yarn-carrier having a tapered base.

In all devices heretofore used for this purpose there is great-complication of the mechanism, such as articulated levers, links, slides and the like, with numerous joints liable to become worn and shackly to thereby destroy the accuracy of control of the winding. In one previously patented device the shifting of the spool is effected by the movement of the thread-guide awayfrom 51 the axis of the package during the growth in the winding, but such a form of construction, besides being compllcated, has the disadvantage of increasing the pressure of the guide on the package to cause bulging or malformation at its end. 5

, machine comprises a main frame 2of box-like construction provided with opposite bearings 3 s is shown as applied to thestandard type ,-.of1, winding machine identified by the trade-mark- Upiversal. Referring to Fig. l, thewinding at the top, in which is journaled a shaft 4, usually" termed the winding-spindle". Arranged base and parallefwith the winding-spindle 4 is a cam-shaft 5 journaled in bearings 6 atjthe sides-fof'the frame 2." The spindle 4 constitutes the driVe-shaft'of the :machine, beingdriven from a belt-pulleytadapted to be connected therewith throughaclutch-member 9 fast on the shaft. The clutchl meniber is; int gral with 'abeltpulley' I II which is'connected by "a belt I l, to a similar pulley I! located therebelow. The pulley I2 is 'fas't' 'witlr-and drives a shaft i 3' journaled in 'abearing 1'4jin acasing '15 at the' side 'olf'the' main frarne'2l GAt its inner-end the-shaft 13 carries 'a 'piiiioiili meshingwith a gear I! rest on the' 'end ofthe-cam shaft' 5. 3

on'the camshaft 5 is-a cam haying a; helical'groove 2I fn it's"peripliery.' "The groove 2| isengaged by 'arbllei"or iollower' 22on a slide or erossli'ead 23' which'constitutes the means "for reciprocating "the thread-guide 25. The crossnets-23 sli'dable in a guideway in a" traverseframe'-26"constituted by a horizontal bar'21 supported from legs 28 pivoted'on bushings 29 which serve'as'the journals forthe cam-shaft 5.

Connected atone end to the crosshead 23 is a traverse-rod 30 carrying the thread-guide at its outer end. 'The traverse-rod' {slides in a guideway in the traverse-frame 26 and the threadguide 25 bears against a plate 3| thereon to adapt it.- to' traverse back and forth in parallel relation to the axis of-the winding-spindle. The con struction an'd 'arrangement'of the parts of the machine a's'thus far described are well known to those versed-in the art,'being common to the present type of winder. The only alteration necessary to the machine to adapt the present attachment or-devic'e for cooperation therewith is a slight change in-the form of the guide-plate or traverse-frame back 3|. As shown in Fig. 1, thetraverse-frame back 3| is cut away at 32 to accommodate the tapered headh of thespool, bobbin or tube B, to be later described. The thread-guide 25 is notched at 24 to receive the yarn and a wire thread-bail 33 mounted on the traverse-frame back 3! extendshorizontally at the rearof the'guide.

A tension-device, shown generally at in Fig. l is supported from the frame 2 of the machine and arranged to adapt the yarn to draw therethrough as it leads up from its source of supply. From the tension-device 35 the yarn draws upwardly across the thread-bail 33 and feeds through the notch 24 in the guide 25 as it is wound on the tube or bobbin B, see Fig. 4 of the drawings.

abrasive As before indicated, the present device adaptl0 ed to wind a package on a spool, bobbin or tube comprising a barrel of cylindrical or slightly tapered form with a tapered or conical head at its end. Referringto Fig. 2, the tube B is herein shown as constructed of fiber or other suitable l6 material-with -acylindrical barrel b and a tapering or frusto-conical head h inclined at substantially 45 degrees to the axis of the tube. The tube or bobbin B is rotated from the drive-shaft orwinding-spindle 4, being carried on a sleeve 20 or hollow mandrel 40 slidable on an ext'ension M of the spindle. Usually, the spindle-extension 4| is made separate from the shaft 4'and connected therewith by means-of a-shoulde'red-st1id'-42- at its end having a'threaded end 43 screwed into a 25 bore iii-the *end of the spindle 4. 5 Through this construction d ifierent-types of spindles may be applied to the machine in accordance withthe character (if th'e'pa'ckage tobe'prodiiced. It will therefore be-seen""thatfit is only necessary to 30 change theforin fo'f' the s'p'ihdle-eirteh'sioniri employi'ng the 3 present "attachment on the" winding machine', =i. i=1 I The slidable" sle'ev'e' br mandrel 40 is provided witha'longitudinal'gfoove or keyway -44"in its 35 bore engaged by apair of keys '45 set into the spindle-extension 4l','-thus keying the mandrel'to' rotate with the winding-spindle 4. "The outer end of the sleeveor' mandrel 40 is c'ount'erbo'red to a larger; diameter at 46, 'see Fig. 5, and driven 40 thr'oiigl'i'the' end' 'of '-the spindle' extension 4! is a pin 41, the ends of which project into the 'counterbore. The ends of the pin 41 are thus adapted to engage the end of the counterbore 4G to limit the outward Sliding movement of the sleeve or 45 mandrel -40 on the spindle-extension 4|. The' inward sliding movement'of the mandrel 4015 limited by the engagement of its end with the side of abrake-wheel 48 fast on the end of the shaft or winding-spindle 4 and constituting a usual part of the machine. This end of the sleeve 40 is formed with spaced radial flanges 49 which provide an annular groove 50 by means of which the sleeve 40 is slid on the spindle-extension 4 i A collar 5! is mounted for adjustment longi- 5 tudinaily on the sleeve 40, being provided with a set-screw 52 for'securing it fast therewith. The collar 51' serves as' an abutment for engaging within the conical head h of the bobbin B to regulate the position of the latter longitudinally of W the sleeve or mandrel 40. To secure the bobbin or tube B rotatively with the sleeve or mandrel 40 any suitable gripping means maybe provided such as the bow-shaped springs 53 shown in Fig. 5. The springs 53 may be made of a single length of wire having its ends bent to engage holes in the mandrel 40 and then extending longitudinally thereof in grooves 54 with portions 55 arched upwardly to provide the gripping means, it being 7 noted that the U-shaped end 56 of the spring extends diametrically across the end of the mandrel. The tube or bobbin B is simply slipped onto the sleeve or mandrel 40 to compress the springs 53, thereby causing them to bite into the mate- 1 rial of the tube to secure the latter both rotatively and longitudinally of the mandrel.

The present type of winding machine is usually constructed in separate units mounted on a table or bed 68, shown in Fig. 1, which is supported from the floor by legsBi. The several alined heads or winding units .are connected at the top by a pair of horizontal tie-rods 62 passing through lugs 63 integral with the frames 2. In the present form of construction of the device the tie-rods 62 are employed as a convenient means for mounting the attachment; it being understood, however, that any other suitable arrangement may be employed for attaching the device to the machine, such as a bracket fastened directly to the frame 2.

As shown most clearly in Figs. 1, 4 and the present mounting for the device comprises a bracket 64 extending across and beneath the two tie-rods 82 and secured thereto by means of clamps 65. bound against the top of the rods by bolts 66 and nuts 61. At its outer end the bracket 64 has an elbow-shaped arm 68 formed with a bearing hub 69 for supporting the operating lever for the slidable mandrel 48.

Referring now to Figs. 2 and 3; the bell-crank lever 10 which operates to slide the mandrel 40 longitudinally of the winding-spindle is pivotally mounted on the bearing hub 69 of the bracket 64. The lever 10 may be of unitary construction, but as herein shown I prefer to make it in' two parts so that its arm H which carries the roller 85 for contacting with the winding may be lifted away from the mandrel 48 to facilitate placing the bobbin B thereon and removing the completed Package therefrom.

Referring to Figs. 2 to 5, inclusive, the opposite arm 12 of the lever Ill is formed with a hub portion 13, in which is secured a rod or shaft-l5 extending downwardly through the hub 69 on the bracket 84. A set-screw 14 or. any other suitable means may be employed for securing the hub 13 fast to the rod 15. The rod ex tends some distance below the hub 69 and carries a collar 16 secured fast on its lower end by means of a set-screw 11. A helical spring 18 is coiled around the rod 15 with one end secured in a hole in the collar 16 and its upper end engaging a hole in the under side of the hub'69. The spring 18 is thus held under torsion, tending to swing the bell-crank lever 10 in a contraclockwise direction, as viewed in Figs. 2 and 3 of the drawings, to maintain the roller 85 hearing against the yarn mass during the winding. By turning the collar 16 on the rod 15 the tension of the spring may be adjusted to effect a light contact of the roller on the yarn without undue pressure applied thereto.

The outer end of the arm 12 of the lever 10 is bent downwardly to reach in under the spindle-extension 4| and Swiveled thereto is a block 88 engaging the groove 50 between the annular flanges 49 at the rearward end of the sleeve or mandrel 40.- It will thus be observed that the spring 18 controls the bell-crank lever 10 to initially locate the mandrel 40 in its rearward position with its end abutting the side of the brakewheel 48 as shown in Fig. 2 of the drawings.

The bell-crank lever 18 is swung in the opposite direction to slide the sleeve 48 outwardly on the winding-spindle under the action of the roller 85 on the end of the arm H. The arm H is relatively fixed in lateral relation to the arm '12 but is hinged to the side of the hub 13 of the bell-crank to adapt it to swing upwardly in a substantially vertical plane. For this purpose the arm Ii is formed with a hub 8| through which extends a stud 82 screwed into the hub 13. A finger or lug 83 projecting from the side of the arm H is adapted to engage against the flat top of the hub 13 to limit the downward swinging movement of the arm ll under the action of gravity. The lug 83 is also arranged to engage across the top of the hub 13 when the arm H is swung upwardly into the position shown in Fig. 5 to ma'intain the roller 85 out of the way during the placing of the bobbin B on the mandrel! and the dofling of. the package therefrom. 7 1 I Swiveled to the outer end of the arm 'II is a bifurcated member or yoke 84 between the arms of which the contact-roller 85 is journaled. The roller 85 is preferably constructed of molded plastic material, such as a phenolic condensation product, having a surface which maybe polished to a high degree of smoothness. Frletiqn-redum ing bushings set into counterbores at the ends of the roller 85 are bored to receive a shaft or spindle 81 extending between the arms .of the yoke84... This form of mounting provides sub stantially frictionless journals for adapting the.

roller 85 to rotate freely which is a most important consideration inorder to relieve the yarn mass from any undue friction or abrasion during the winding. It isalso ,to be noted that the roller 85 is relatively shortascompared to. the. length of the package-to reduce its area of contact therewith. The yoke 84 .has a hub 88 pivotedto the end of the arm H by means of a stud 89, the swiveled connectionfthus provided permitting the proper contact of the roller with the winding as the bell-crarik lever 18 swings on its pivot. A handle 80 projects .rearwardly from the hub 88 on the yoke 84 to serveas a convenient means forlifting the arm H .to carry the roller85 into raised positionna s-shown in 'Fig; 5. -A lug or projection 92 on one armor the yoke 84 is arranged to strike against the arm ll of the bell-crank lever 10 tolimitthe rocking motion of the yoke on itspivot 89 whenthe arm and roller are raised into the position shown in Fig. 5.

Having now described the construction and arrangement of the package-forming device in bobbin to secure it rotatively and longitudinally of the mandrel 40.

Previous to applying the bobbin B the roller 85 is raised into the position shown in Fig. 5 by swinging the arm 1| upwardly on its pivot 82, the operator grasping the handle 90 for this purpose. Likewise, the traverse-frame 26 is swung back on its pivots to withdraw the thread-guide 25 from proximity to the winding-spindle. The purpose .of thus adjusting the parts is to avoid obstructing the head of the bobbin B in placing the latter on the winding-mandrel.

After the bobbin B is in place the arm H is lowered to bring the roller 85 into position with its surface substantially in contact with the periphery of the. barrel 1) of the bobbin B; the lug 83 on the arm ll serving as a stop to retain the arm in substantially horizontal position. traverse-frame 26 is then swung back on its pivots to place the thread-guide 25 against the opposite side of the barrel b of the bobbin B, it being observed by reference to Figs. 2 and 3 of the drawings that the upper button-portion of the thread-guide 25 is beveled off on one side at an angle corresponding to the inclination of the head h of the bobbin so'that the guide may move into proximity therewith. v

The'machine is threaded by drawing the yarn y from its source of supply, leading it through the tension-device 35, and drawing it upwardly therefrom across the wire-bail 33 and down through the notch 24 in the thread-guide 25. The end of the yarn is made'fast to the barrel b of'the bobbin B and the machine is ready for operation. V The operatorrocks the starting lever 36 to engage the clutch'member 9 with the driving pulley-B, whereby to setthe windlng s'pindle 4 in motion, and the cam-shaft '5 is driven therefrom through the connections previously described. As the cam 20 is rotated by the shaft 5 it reciprocates the crosshead 23 to impart traversing motionto the-thread-guide 25 which slides'on the traverse-frame'26.- As the guide -25 is traversed along the barrel b of the bobbin 3 the yarn is deposited thereon in helical coils, reversing at each end and'building up layers by that system known'as the""Wardwell or V-wind.

As a layer ofyarn is formed on the barrel b of the'bobbin B its contact with the roller 85 rotates the latter while tending' to force it rearwardlyaway' from the'axis of the"*'wind'ing-spindle. The bell-crank leve'r'lll is so proportioned that as each yarn layer is completed the movement of the roller 85 cause the arm-l2 of-the bell-crank to shift the mandrel 40 outwardly along the spindie-extension H to an extent sufficient to cause thenextl'ayer' of'winding to be stepped to the right, as'viewed'in 'fig'fz'so that its end will conform to the tapered or conical periphery of the head h on the bobbin B. Themo'vement of the arm 12 is transmitted to the mandrel or sleeve 40 through the block 80 engaging the annular groove 50 in the end of the mandreLit being understood that this form of connection permits the mandrel to rotate with'the winding-spindle while sliding thereon.

The winding'continues in the manner as above explained with the mandrel 40 and bobbin B being gradually displaced to the left, as viewed in Figs. 2 and'3, during and proportionate with the growth of the wound mass so that the layers of winding are stepped back from the forward end of the package P to form the latter with a conical or tapered end, see Fig. 3 which illustrates the package at or near the point of completion.

As herein illustrated the completed package P has its end tapered at an angle of substantially 45 degrees in conformity with the inclination of the conical head h of the bobbin; but it is to be understood that packages of other proportions may be wound with the present device or attachment by varying the shape of the spool, bobbin or tube and altering the proportions of the two arms of the bell-crank lever 10. That is to say, bell-crank levers having arms of different proportions may be employed in place of the. one herein shown, the bracket 64 being adjustable with respect to the axis of the winding-spindle to provide for such changes. For some purposes a bobbin or tube having a tapered barrel is used and the present device may be employed for winding the package The thereon by simply changing the form of the mandrel or holder.

After the winding has been completed the roller- 85 is lifted out of the way, the traverse-frame 26 moved back to release the guide 25 from the 5 surface of the winding and the package may then be withdrawn from the mandrel 40 and another bobbin or yarn-carrier placed thereon to continue the operation of the machine.

It will be observed from the foregoing that the present improved device or attachment is entirely automatic in its operation to form or shape the package as required without care or attention on the part of the operator. In setting the device at the start of the winding all that is required is to 15 place the roller 85 against the barrel of the bobbin B, there being no sliding parts or other elements requiring adjustment.

It will be noted further that the mechanism for shifting the bobbin or package during the wind-' ing is of the utmost simplicity, comprising practically only one element, the bell-crank lever which is rocked during the growth of the yarn mass. Thus, the numerous articulated levers, links, slides, gears and other impedimenta of previously used devices are entirely eliminated, notonly to lessen the cost of manufacture of the apparatus, but further and most important, to reduce the friction and eliminate wear. The elimination of friction results in placingless pressure on the yarn mass being wound and the use of the rotatable roller as a contact element prevents rubbing and abrasive action which would have a deleterious effect on fine, soft materials.

- Due to the simple arrangement of the parts and the avoidance of complicated joints and sliding connections the contact-roller exerts but very little pressure on the mass beingiwound and consequently there is no tendencyto compress the layers and cause bulging at the end of the package as would be liable when winding soft yarns. The reduction in the numberof pivots, joints and sliding connections also reduces wear on the parts so that the mechanism is more durable in use and less liable to deterioration from shackly joints which might destroy its accuracy and reliability in forming the package.

While I have herein described and illustrated a preferred form of construction of the device, it is to be understood that certain modifications may be made in the structure and arrangement of the parts thereof without departing from the spirit or scope of the invention. Therefore, without limiting myself in this respect, I claim:

1. In a winding machine, means for rotating a yarn-carrier, means for traversing yarn longi-' tudinally thereof, and means for progressively displacing the yarn-carrier axially during the. winding comprising a bell-crank lever directly connected to the carrier, and means carried on and movable bodily by and with the growth in the winding to operate the lever to move the carrier.

2. In a winding machine, the combination of means for rotating a yarn-carrier, means for traversing yarn longitudinally of the carrier, a bell-crank lever directly connected to the. carrier to slide the latter in the direction of its axis, and

a roller journaled on said bell-crank lever and arranged to bear against the yam wound on the carrier to rock the lever to slide the carrier to be moved bodilyby the growth in the winding.

3. In a. winding machine, the combination of a rotatable and longitudinally movable yamcarrier provided with a frusto-conical head,

means for rotating the carrier, means for traversing yarn to deposit it in helical coils on the carrier, a pivoted lever directly connected to the carrier, and means on said lever for contacting with the yarn wound on the carrier to cause it to be displaced bodily to rock the lever to move the carrier during the growth in the winding.

4. In a winding machine, the combination of means for rotating a yarn-carrier, means for traversing yarn longitudinally of'the carrier, a pivoted bell-crank lever having one arm directly connected to the carrier to displace the latter in the direction of its axis, and a roller on the opposite arm of the bell-crank lever adapted to bear against the yarn wound on the carrier to be moved bodily under the influence of the increase in diameter of the winding to rock the lever to move the carrier.

5. In a winding machine, the combination of a rotatable spindle, a yarn-carrier rotatable with the spindle and slidable longitudinally thereof, means for traversing yarn longitudinally of the carrier, a lever directly connected with the carrier to slide the latter longitudinally of the spindle, and means carried by said lever and arranged to bear against the yarn wound on the carrier to cause it to be bodily displaced by the growth in the winding to rock the lever to slide the carrier without applying undue pressure or friction on the yarn. Y

6. In a winding machine, the combination of a winding-spind1e, a mandrel rotatable with the spindle and slidable axially thereof, means for securing a yarn-carrier ro'tatively with-said mandirectly connected to the mandrel to slide the latter on the spindle, and means on the opposite arm of the bell-crank lever for lightly contacting the yarn wound on the carrlerto cause said means to be moved bodily by thegrowth in the winding to rock the lever to slide the mandrel.

7 In a winding machine, the combination of a rotary winding-spindle, a mandrel rotatable with the spindle and slidable axially thereof, means for securing a yarn-carrier on the mandrel, means for traversing yarn longitudinally of the carrier, a be1l-crank lever directly connected with the mandrel to slide the latter, means on said lever for contacting the yarn wound on the carrier to cause said means to be displaced bodily away from the mandrel to rock the lever to slide the mandrel during the growth of the package wound on the carrier, and resilient means for resisting the sliding movement of the carrier.

8. In a winding machine, the combination of a rotatable and longitudinally movable yam-carrier, means for rotating the carrier, means for traversing yarn longitudinally of the carrier, a sleeve for sliding the carrier in the direction of its axis, a bell-crank lever having one arm directly connected to the sleeve, and means on the opposite arm of the bell-crank lever for contacting with the yarn wound on the carrier to cause said means to be displaced bodily by the growth in the winding to rock the lever to slide the sleeve.

9. In a winding machine, the combination of means for rotating a yarn-carrier, means for traversing yarn longitudinally of the carrier, a bell-crank lever having one arm directly connected to the yarn-carrierto slide the latter longitudinally, means on the opposite arm of the bell-crank lever adapted to contact with the winding to cause it to rock the lever to slide the carrier, and means for mounting said contact means to adapt it to be displaced manually without sliding the carrier whereby to facilitate the placing and removal of the yam-carrier.

10. In a winding machine, the combination of 5 a rotatable winding-spindle, a sleeve rotatable with and slidable on the spindle, said sleeve formed with an annular groove, means for rotatably supporting a yarn-carrier to slide with the sleeve, a bell-crank lever, means on one arm of the bell-crank lever engaging the groove in the sleeve to slide the latter, and means on the opposite arm' of the' bell-cranklever for contacting with the yarn wound on the carrier to cause said means to bemoved bodily by the growth in 15 the winding whereby to rock the lever to slide the carrier.

11. In a winding machine, the combination of a winding-spindle, a mandrel slidable longitudinally of the spindle, means for securing a yam- 20 carrierto rotate with the mandrel, a two-part pivoted bell-crank lever having one of its arms connected to slide the mandrel, the opposite arm of the bell-crank lever being hinged to adapt it to swing in a plane substantially parallel with 25 theaxis on which the lever is pivoted, and means to'the mandrel to facilitate-placing the carrier thereon and its removal therefrom.

12. Ina winding machine, the combination of "a winding-spindle,'a yarn-carrier slidable longidrel, means for traversing yarn longitudinally of the carrier, a bell-crank lever having one arm tudinally of the spindle, abell-cranklever for 5 sliding said carrier, and means on said bell-crank lever for contacting with the winding to rock the lever, said bell-crank lever being movable about a fixed pivot to slid ethe; carrier andhaving its arm carrying the contact means hinged to swing 40 in a plane at right-angles to its rocking movement about the fixed pivot to remove the contact means from proximity with the spindle.

13. In a winding machine, the combination of a rotatable winding-spindle, a mandrel rotatable with and slidable axially of the spindle, a pivoted bell-crank lever having one arm connected to slide the mandrel, means on the opposite arm of the bell-crank lever for contacting with the yarn wound on the carrier to rock the lever, and a hinged joint between the first arm and the second arm of the bell-crank lever for permitting the contact means to be swung upwardly to remove it from proximity with the mandrel to facilitate the placing of the carrier thereon and its removal therefrom.

14. In a winding machine, the combination of a rotary spindle, a mandrel rotatable with and slidable axially of the spindle, a pivoted arm, means at the end of the arm engaging the mandrel to slide the latter, a second arm connected to rock the first arm on its pivot and having a secondary pivot to adapt it to be rocked in a plane extending across the plane of movement of the first arm, and means on the second arm for contacting with the winding to rock the first arm to slide the mandrel.

15. In a winding machine, the combination of a rotatable and longitudinally movable yarncarrier, means for rotating the carrier, means for l 0 traversing yarn longitudinally of the carrier, a pivoted bell-crank lever having one arm directly connected to the carrier to move the latter in the direction of its axis, means on the opposite arm of the bell-crank lever adapted to contact the yarn wound on the carrier to cause said means to be moved bodily during the growth in .the winding to rock the lever, and a spring operative to resist the movement of the bell-crank lever by the contact .means.

16. Inc. winding machine, the combination of a rotatable and longitudinally movable yarncarrier, means for rotating the carrier, means for traversing yarn longitudinally of the carrier, 8. pivoted bell-crank lever having one arm directly connected to the carrier to move the latter in the direction of its axis, means on the opposite arm of the bell-crank lever adapted to contact the yarn wound on the carrier to cause said means to be moved bodily during the growth in the winding to rockthe lever, a spring acting to resist the swinging of the bell-crank lever by the contact means, and means for adjusting the tension of the spring.

17. In a winding machine of the type having a rotating spindle and a thread guide reciprocating longitudinally thereof; a bobbin receiving sleeve slidable on the spindle, a bell crank pivotally secured adjacent the spindle, a connection between one arm of the bell-crank and the sleeve, a member carried by the other arm of the bell-crank and resting directly on the thread 10 mass, whereby the sleeve will be moved longitudinally of the spindle and independently .of the movement of the thread guide as the thread mass on the bobbin increases in diameter, and a spring tending to keep said member in contact with the 15 thread mass.

EDWARD F. PARKS.

Patent No. 2;0225'314.

EDWARD F. PARKS.

It is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows: Page4, second column, line 71, claim 2, beginning with the word "to" third, occu ri encegstrike out all to andincluding the word "winding" in line72. and insert the-same after '"carrier" second occurrence. in line'71; page 5,"secondcolnmn,"-line"30, claim ll, for "displayed"rend displaced; and that the saidLetters Patent should be read with these corrections therein that the same may conform to the record of the ease in the Patent Office.

Signed and sealed this 14th day of January. A. D. 1936.

Leslie Frazer (Seal) Acting Commissioner of Patents