US2091902A

US2091902A - Winding machine

Info

Publication number: US2091902A
Application number: US7100A
Authority: US
Inventors: James E Auten
Original assignee: Leesona Corp
Current assignee: Leesona Corp
Priority date: 1935-02-18
Filing date: 1935-02-18
Publication date: 1937-08-31
Anticipated expiration: 1954-08-31

Description

Aug. 31, 1937. J. E'. AUTEN WINDING MACHINE Filed Feb. 1a, 1935 4 sheets-sheet 2 wlllllllllll f `91113.31, 1937. J E AUTEN A 2,091,992

* WINDING MACHINE Filed Feb. 18, 1935A 4 Sheets-Sheet 3 Aug. 3 1, 1937. J.. E. AUTEN f 2,091,902

' WINDING MACHINE A Filed Feb. 1a', 19,35 4 sheets-sheet 4,-

Patented ug. 3l, 1937 UNITED STATES PATENT OFFICE W'lNDING MACHINE Application February 18. 1935, Serial No. V'1,100

12 Claims.

This invention relates to winding machines for winding cops, cones, cheeses and other forms of packages'of thread, yarn, cord and similar strand material, hereinafter referred to generally by the term "yarn; and'. particularly to winding machines wherein the package is rotated by contact with a drive-roll or drum. Specifically, the invention consists of a ribbonbreaker, sc-called, which operates to control the disposition of the turns or coils of yarn on themeans at recurring cycles throughout the 25 winding- Another object oi the invention is to provide a machine of the type indicated with mechanism driven from a constant speed source which is operable to intermittently change Vthe ratio be 30 tween the constant speed source and either the package-rotating means or the yam-traversing means.

Another object of the present invention is to provide a winding machine of the type indicatedv 35 having an expansible and contractible beltdriven pulley in the driving mechanismwhich is intermittently and positively actuated into conl tracted relationship to vary the diameter of its periphery engaged by the beit. l

40 Another object of the invention is to provide a mechanism of the type indicated which is ccmpletely automatic in its operation and adjusty able to meet all requirements. I

Further objects of the invention are indicated 45 in the following specication which describes a.

preferred form of construction of the device, by

way of example. as illustrated by the accompanylng drawings. In the drawings:

Fig. 1 is a side elevational view of a winding "5 machine incorporating the novel features -ot the present invention andv showing the driving mechanism and the winding elements of one unit of the machine: Fig. 2 is an end elevational view of thema- 55 emne illustrated in Fig. 1 showing me driving (Cl. 'i4-21.7)

belt connecting the expansible pulley with the source of power;

Fig. 3 is a view similar to Fig. 2 showing the expansible pulley partly in section to illustrate the manner in which the driving belt ,engages 5 its periphery at a point nearer itsl axis;

Fig. 4 is a longitudinal sectional view of the expansible pulley and its operating means taken on line 4 4 of Fig. 2 and showing the sections of the pulley in closed relationship; 10

Fig. 5 is a sectional view similar to Fig. 4 taken on line 5--5 of Fig. 3 and showing the sections of the pulley in open relationship; Fig. 6 is a part-sectional view of the expansible pulley and its operating -means taken on line 6-6 of Fig. 4; and

Fig. '1 is a sectional view of the actuating cam for the pulley-operating arm taken on line l-I of Fig. 5 and showing the range of movement imparted to the follower-roller to actuate the arm.

The present invention relates generally to means for causing acceleration'- and deceleration. in the speed of one ot the. winding elements of' the machine, torexample, the drive-roll tor rotating the package; or, in other instances, it may be applied Vto the drive lor the yarn-traversing means when the latter is operated independently of .the drive-roll. A More specifically the invention relates to a driving mechanism betweenv the prime-mover and the package-rotating means including a belt-driven expansible' and cqntractlble pulley which isautomatically operated to vary the diametex' of the periphery engaged bythe belt. 35

The invention also provides an intermittently operating -means from the driving mechanism and directly engaging the expansible and contractibie pulley to positively actuate the latter to alter itsdiameter engaged bythe belt 40 whereby to vary the speed ratio between its con- .etant speed-source and the package-rotating means.

Referringtothe drawings, the winding machine herein iilustrated by way of example is Aci? the double zang type comprising a plurality of'winding units arranged in sexies along the opposite sides of va horizontal 'frame or bed 2 which .is `at its ndaby legs I. -Spaced along the top of the bed 2 are a series of-brackets l 50 which mount bearings for the drivinz shafts and other parts oi' the winding mechanisms,V two opposite units being located .between each pair of brackets but only one unitibeingherein shown.

In the 'construction ci' the machine as shown 55 v in Fig. 1 the winding mechanism .of each unit comprises only two principal elements, namely: the winding-mandrel or spindle I5 on which the yam-receiver or cop-tube C is rotatably support- 5 ed; and the drive-roll I 0 for rotating the yarnreceiver and in which is embodied the means for traversing the yarn back and forth axially of the. package being wound. In this form of construction the usual` reciprocating thread-guide is dispensed with, the drive-roll having" its peripheral l surface provided with a helical groove or grooves 8 and S extending in opposite directions and adapted to receive the strand of yarn to guide it back and forth between the ends of the package. This particular form of traversing means is shown and described in U. S. Letters Patent No. 1,749,355, dated March 4, 1930. It 1s to be understood, however, that the present ribbon-breaker or speedchanging device is adapted for use on winding machines of other types, for example,. those wherein the package is driven by contact with a drive-roll and the yarn traversed by means of a reciprocating guide 0r with any other arrangement of drum-driven winders.

In the form of construction shown in Fig. 1 the drive-rolls l 0 are mounted on and rotatedv by a horizontal shaft II journaled in ball bearings I2 on the bracket 4; the shaft II being extended throughout the whole length of the gang machine to carry the 'drive-rolls for any desired number of winding units. A second parallel shaft I3, also journaled in bearings on the bracket I, carries the drive-rolls, not herein shown, for, the other series of winding.' units arranged on the opposite side of the winding frame or at the righthand side as viewed in Fig. 2.

I'he present machine is shown as adapted for winding packages of conical formwith the yarn built up on a suitable axial corejor receiver, a

40 wooden or ber conical cop-tube C being illustrated in 1"ig. 1 as mounted to rotate on the winding-spindle or mandrel I5. "The windingspindle I5 is of usual construction' and mounted in the manner illustrated inlthe patent referred:

to above. Suiijice it to state herein that the winding-spindle I5 is swiveled to the forward end of a weighted arm I5 which is pivotally supported at its rearward end to adapt surface of the Ayarn-receiver C. and of -thepackage P, to be held in contact with the peripheryfof the driveroll I0. Asvthe yarn is built up on the coptube C it forces the latteupwardiy with. the um I6 swinging o n itspivot lin the 'manner common to machines of the'present type. Although not 55 herein shown, a, suitable stopping mechanism is usually employed with each unit of themachineto automatically arrest the winding operation' by.

raising the package away from the drive-roll Il.

The driving. transmission for the drive-roll 'A 6o shafts is similar to that-shown'and'described in my copending application, Serial No. 741,012,

filed August 22, 1934', .and is therefore' described butrbriefly herein. Bolted to the" top of the-bed 2 are apair of spaced brackets or cross-'frames '55 2l and 2l for supporting. the' 'ends of theV driveroll shafts Hand I3 andthe driving` transmission therefor. The drive-roll shaft II projects 'beyond the bearingi! in the bracket l with its reduced extremity!! iournaled in a ball bearing 70 25 on the framelll, vas indicated generally in'Fig. 1. A belt-pulley 3l is keyed at 2l to the reduced end 22 of the shaft Il and held against dial movement by a nut 2". The periphery of the pulley 30 is provided with a V-shaped 'groove 21 15 for receiving a driving belt as 'I'he opposite drive-roll shaft I3 is somewhat longer than the shaft I I with its reduced end projecting through a clearance opening in the frame member 20 and journaled in a ball bearing 32 in the frame member 2|. .Mounted fast on the re- 5 duced end of the shaft I3 is a pulley 35 of the same form and size as the pulley 30 previously described. The pulley 3 5 is suitably keyed to the shaft I3 and held against axial movement by a nut 3|, as shown in Fig. 2. 10

Arranged forvertical adjustment on the facing sides of the cross-frames 2D and 2| are two complementary brackets 31 and 38 received in grooves or guideways on the frames and held in adjusted position by means of disks 40 eccentrically mount- 15 ed on a stud-shaft l2, see Fig. 2. The ends 4| of the shaft 42 project through bearing apertures in the cross-frames 20 and 2| with nuts 43 screwed onto their threaded extremities and set up against the sides of the frames to Vhold the shaft from 20 turning. The vperipheries of the eccentric disks 40 engage the opposite -sides of horizontal slots 45 formed in the brackets 31 and 38 as shown in Fig. 2.

An enclosing housing or cradle 50 mounted be- 25 tween the cross-frames 20 and 2l carries the driving transmission for the drive-shafts I I and I3. The housing 5D is suspended between the brackets 31 and 38 on a rock-shaft 52 passing through bearing sleeves 53 and 54 in the end walls and ex- 30 tending into bearing apertures and 56 in the brackets. The rearward end Blof the rock-shaft 52 extends beyond the cross-frame ZI as shown in Fig. 1 for connection with the means for actuating the speed-changing vmechanism on the driv- 35 ing shaft to be later described.

The housing 50 is prevented from movement about the rock-shaft 52 by arms 58 and .59 engaging the 'sides of the housing. The arms 58 and 53' are slidably mounted on the machine bed '40 V2 at opposite sides of the housing 5I!- andare adjusted into engagement with vthe-v walls of the housing 5 0 by means of screws Eiland 8i carried in depending webs on the arms and engaging the sides ofthe b'ed. The arms-58,;and 59 are held-45 against the top of the bed 2 by bolts 62 passing .through slots in their ends,' see Fig- L The housing. may be vertically adjusted to'any desired position with respect to the cross-'frames 2l and 2l by rotatingtheccentric disks' Il)l onao the Stud-Shaft l2.

A pair of driving shafts. and 55 are journaled in bearings in the liousing'5ilxin spaced parallel relation below the rock-shaft '52. As shownin Fig. 1. thedrive-shaft M isjoummed in bearings 55"A and onthe opposite end walls of the housing 5l with its forwardend extending beyond .the housingr'to .receive a. pulley 53- keyed j thereto, andv held axially positioned thereon by a nut 10. The

periphery or the. pulley sa is provided. with axeo V-shapedgroove in-alinement with the groove -21 on the pulley 30, previously mentioned, and the 'two pulleys are connected by an endlessbelt 1I- extending therebetween'. opposite end of 'the shaft M terminates inthe bearing-,51 in the'' end wallof thehousing'i, andadiacent the hearing a spur-gear 'I2 is fixed on the shaft. The shaftv isalso provided 4with a.- worm 13 intermediate its. ends and withinthe housing 53.

- 'mesma is 1s simuarly :carnales in'smtabl''m" bearings in the end walls ofthe housing' 5 0 with itsrearward end extending outwardly from the h'ousingtc receive a' driven expansiblepulley 15,

'hereinafter more fullydescribed. and a driving slieave-type pulley I6 keyed 'to the shaft and. 'Illv held ln axial position by anut 11. 'Ihe pulley -16 is aimed with the pulley 35 on the shaft I3 and the two pulleysV are connected by a V-shaped belt 18. Within the housing 50 is a spur-gear 5' 19 fixedly mounted on the shaft 65 for rotation therewith and intermeshingwlth the gear 12 on the shaft 64 to connect the two shafts to be driven together;

A cam-shaft 80 is suitably journaledinbearings 8| and 82 in the side walls of the housing 50 and is provided with a suitable worm-wheel or gear 83 engaging the worml 13 on the driving shaft 64. .A cam 86 fixed to the shaft 80 intermediate its ends has a helical groove 81 for en- 5 gaging a follower-roller 88 on a rocker-arm 89" As most flxedly connected to the r'ockshaft 52. clearly shown in Fig. 1, the rocker-arm 89 depends from a hub 90 keyed to the shaft 52 and held against axial movement by a set-screw 9|. With 20 the construction described the cam-shaft 80 is 25 shaft 52 maybe continuously rocked between its extreme alternate positions or may be intermittently actuated in accordance with the contour of the cam-groove 81` which may be varied from the form shown in the drawings.

An electric motor 95 for driving the shaft 65 is mounted on a suitable pedestal 96 adjustably supported from a base 91 by means vof studs 98 and adjusting nuts 99. The motor 95'isposi tioned below the bed at the rearward or righthand end of the winding machine, as viewed in Fig. 2, and in driving relation to the shaft 65. Mounted on the armature-shaft |00 of the motor 95 is a driving pulley |0| disposed in alinement with .the pulley 15, the two pulleys being con- 40 nected by a V-shaped belt |02.

45 to cause a slippage between the package and drive-roll and a change in the ratio of packageperipheral speed to traverse' thereon, or, inI other "words, to interrupt the synchronism between the .rotation of, the package and the traverse of the 50 yarn. Broadly, the invention contemplates periodically altering the speed ratio of the. driving and driven pulleys on the motor and driving shaft, respectively, by mechanically actuating and positively altering the effective diameter of 55 the periphery of the driven pulley engaged by the driving belt.

4Referring now to Figs. 4 and 5, the pulley 15 is shown inthe form of a sheave having a groove for receiving a V-belt and comprised of cooperat- O ing sections |05and |06 which are relatively displaceable to vary the widthof the groove so that the belt may engage the pulley at peripheries of different diameters. In the preferred form illustrated, the section |05 comprises a cylindrical sleeve or hub |01 having a radially extending flange |08 integral therewith and fixed with respect to the elementv |06.v The pulleysection |05 is keyed to the shaft 65 at |09 and held lagainst axial movement at one end by an oilretaining ring ||0 abutting the end of the bearing 61 in the housing 50;' and by the abutting hub on. the pulley 16 at the other end. The inner face of the flange |08 has a plane surface |I2 extending outwardly from the hub |01 with 75 a conical surface ||3 adjacent the periphery of the flange to form one-half of the V-shaped groove.

'Ihe pulley-section |06 is adapted for lateral movement with respect to the section |05, being formed with a hub ||5 embracing the cylindrical sleeve |01 and an integral flange ||6 having a plane surface I1 and an outer conical surface I8 for cooperation with the flange |08 `to form the groove for receiving a V-shaped belt. The laterally movable section |06 is slidably mounted on the cylindrical sleeve |01 of the section |05 but is prevented from rotation relatively thereof by a key |20 engaging al keyway formed in the two elements. The section |06v is adapted to be engaged and laterally moved with respect to the section |05` and for this purpose a bearing flange |2| is mounted on the hub ||5. To prevent excessive wear a ball-bearing |22 is provided between the bearing flange |2| and the hub ||5. The inner race I9 of the bearing'i 22 is fitted to an annular shouldered seat on the hub ||5 and heldin place by a nut |25 screwed on the threaded end of the hub; while the outer race |20 is forced into a recess in the offset hub ofthe flange. When in its assembled relationship, as shown in Figs. 4 andlating lever 25 which directly engages the bearing flange |2|. The lever |25 comprises a pivoted hub portion 26 having a depending bifurcated shifting fork |21 and an upwardly projecting follower-arm |28. The lever |25 is rockably mounted on a pin |29v extending through a bearing in its hub |26 with its ends xedly held in dependi'ng webs |3| on the bracket 38. As more clearly 4shown in Fig. 6, the bifurcated shifting fork |21 v comprises arms |32 and |33 of semicircuiar shape extending from the hub |26 to straddle the sides of the hub of the bearing flange |2|. 'I'he arms v|32 and |33 terminate in rounded extremities |34 for engaging the flange |2| on opposite sides of the shaft 65. The follower-arm |28 of thelever of the bearing roller 35 with an oscillating cam The cam |40 is constructedV in the form of a collar |4| fixed to the extension 5l ofthe rocksha-ft 52, previously mentioned, by means of setscrews |42 and having a depending arm |43 extending inwardly with a beveled face |44 at its end adapted Yto engage the convex periphery of the roller |35 on the. lever,|25. The end face |44 of the arm |43 is inclined at an angle to the pivotal axis of the lever |25 to form a cam slidably engaging the roller |35 to move it between the positions indicated at a and b in Fig. 7 as the rockshaft 52 oscillates from one extreme position to the other. This motion of the roller |35 is trans.- mitted through the lever 25 to cause its fork |21 to axially shift the pulley-section |06 relatively of wooden or cone-tube or yarn-receiver C to rotate on the spindle I5. For this purpose the arm I6 is raised on itspivot' and the spindle i5 swung outwardly on its swiveled joint at the outer 5 end of the arm in accordance with the usual practice. After the cop-tube C is in place the spindlel .l5 is swung back into position above the driveroll I and the arm I6 lowered'to bring the surface of the tube into driving Contact with the l0 periphery ofthe roll.

',I'he strand of yarn y or other material is led up from its source of supply through a tension-device, not herein illustrated, thence drawn across the periphery of the drivey roll Il! and its end attached to the cop-tube C l in any suitable manner.

'Ihe housing 5|| carrying the driving transmission is adjusted vertically to properly tension the belts 1l and 1B by loosening the nuts 43 on the ends of the stud-shaft 42, which allows the entire assembly of housing 50, rock-shaft 52 and brackets 31 and 38 to move downwardly. The Weight of the assembly is such as to properly tension the belts by adjusting the housing 5I! to its operative position on the rock-shaft 52. Ihe nuts I3 are then tightened in position and the arms 58 and 59 adjusted by means of the screws 60 and 6| to engage and rigidly hold the housing against lateral movement.

' The operation of the machine is started by closing a circuit breaker or switch (not herein shown) to energize the motor windings from asource of current. The motor 95 drives the shaft 65 in a counterclockwise direction through its belt connection with the expansible pulley 15 and the 5 shaft 64, in turn, is driven by the intermeshing gears 12 and 19 in a clockwise direction. vIhe shaft Il carrying the drive-rolls ||l on one side of the machine is driven from the shaft 6l in a clockwise direction by the belt .1| connecting the pulf leys 68 and 30 at the forward en'd of the housing,

as viewed in Fig. l.

Also, on the opposite side of the machine, as

more clearly shown in Fig. 2,' the shaft I3 carry-X ing a similar' series of drive-rolls is driven directly from the driving shaft 6.5 through the belt 1li` connecting the pulleys 16 and 35. From the above explanation it will be apparent that the two series of drive-rolls Il) on opposite sides of the machine are driven by-the motor in opposite directions of rotation to wind packages from yarn supplied thereto in the usual manner.

As all the winding units function in the same manner it will be suiiicient to explain the method of operation of one of them. The drive-roll ||I is driven continuously and as the cop-tube Cv makes contact with its periphery it isr'otated by the roll to wind on the yarn. As the yarn is taken up by the rotation of the cop-tube C the'strand y enters the helical groove or grooves y B0 8 and 8 on the periphery of the rollv Il) to be traversed thereby to deposit it on the receiver .`in helical coils which make several turns first in one direction and' then in the opposite direction. In this way the yarn is given a continuous traverse from one end ofthe cop-tube to the vother and back again to build up a succession vof courses forming overlying layers whichconstitute the yarn body of package.

At -the start of the winding the rotative speed ofthe cop-tube C will have a certainratio to that oi the drive-roll Il depending upon their respective diameters and the yarn will be laid from end to end oi the tube with a corresponding ratio in the number of coilsv to the number of turns inthe groove or grooves 8 and As `:Lompocy on the surface of the package.

the yam bauds up on the oop-tube c the latter recedes from the drive-roll III and with the in-` l crease in diameter of the yarn mass its angular velocity or speed of rotation is gradually lessened,

due to the increasing disparity between its diameter and that of thevdrive-roll. In other words,

riation in the number of turns laid on the surfacev of the package, or in called.

the wind as ity-isV there is a constant change Vin ratio between the rotative speed of the package and drive-roll and, consequently, there will be a corresponding va- At the start of the winding the yam nous may be laid in "open or spaced relationship, but when the "wind changes thespacing between the turns is lessened and the coils gradually vclose up and eventually tend to crowd together 'Ihis crowding or piling in bands or-ribbons. of the yarn coils takes place each time the wind changes from: a greater toa lesser number of even turns and ordinarily causes a ribbon wind When several coils are laid over each other in the ribbon they tend to slip and slide out of place and roll on the surface of the package. This disturbs Yis the twist of the yarn and tends to weaken it Aso that its quality is impaired and, as another serious defect, the ribbon prevents the'yarn from delivering freely lwhen it is drawn oif over the end of the package. The present invention operates to overcome this 'defect of ribbon wind in drum-wound packages by periodically varying the ratiov between the vrotation of the package and the traverse of the 'yarn to disrupt the synchronism thereof. i

To this end. the driving sha-ft' 6l operates f through the worm 13 and worm-wheel 83 to rotate the cam Bliwhereby to oscillate the rockshaft 52'from its follower arm connection with the cam-groove 81. As the rock-shaft extension 51 and its depending cam |40 oscillates from its extreme forward to extreme rearward positions the lever |25 is rocked in a plane at right-angles to the plane of movement of the cam through the engagement Aof the roller |35 'with the cam-face |44. Due -to the pivotal mounting of the lever |25 intermediate its ends and the direct engagement of its shifting fork |21 with the bearing flange vI2I on the movable section |05 of the expansible pulley 15', the oscillatory movement of the rockshaft 52 is' converted into a positively-actuated sliding movement of they pulley-section |06 to shift it toward the section |05.

When the cam MII on the rock-shaft extension 51 is movedto vthe extreme position shown in full Vlines in Fig. '7, the'pulley-section A|06 is moved toits closed position by the direct engagement oi the extremities |34 of the shifting fork |21 with the bearing ange |2| as shown in Figs. 2

and 4. With the sections of the pulley 15 closed together in this manner thediameter of its periphery engaged by the belt |02 is at a maximum and, since the diameter oi the pulley I|l| on the driving motor shaft remainsk constant, the ratio of the driving and'driven elements is such that the driving shaft B5 of the winding machine will be driven at its slowest rate of.speed. With thel pulley-sections closed together in this relationship the belt is tensioned on both sides as shown in Fig. 2. A i

As .the driving mechanism continues its operation the rock-shaft extension 51 rocks the cam llllgto its opposite extreme position as shown in dotted lines in- Fig. '1, thereby releasing .the lever |25 to permit the section IIE ofthe pulley 15 to to separate its face Ill from the face Ill. Due to the beveled or conical contourof the faces HI and ||0 on the two. sections |05 and |06 of the 5 pulley 15 the tension of the belt |02 will cause the section Y|06 to be wedged away from the section |05 under the control of the lever |25 so that the belt will ride deeper into the groove between the two pulley-sections or, in other words, the

l belt will engage the pulley at a lesser circum- 'ference on its periphery. The engagement of the roller |35 on the lever |25 with the camface I and the engagement of the shifting forlr- 25. until with the parts in the position shown in Figs. f

3 and 5, the driving shaft 55 will be driven at a maximum rate of speed. The tension of the driving belt `|02 on the pulley 15 is maintained` substantially constant due to centrifugal for-ce 80 which throws the belt outwardly on its relatively slack side, asA shown in Fig. 3, and insures engagement with the pulley at the deepest possible force en the belt is. due to its linear velocity and 55 change ofdirection in passing over the p ulley as well understood inthe art.

The constant change or periodic acceleration and deceleration in the speed of the driving shaft |i5 is transmitted to both of the drive-roll shafts 401| and I3 and the variation in the speed of the drive-rolls has the effect to periodically vary the rate of traverse of the'yarn following the helical grooves on the rolls.

45 decelerationand acceleration of the drive-roll, respectively, the package will slip or skid on the periphery of `the roll and, as a result thereof,

, the synchrony of winding speed to yarn traverse is disrupted at frequent intervals to prevent rib- 50 bon winding. 'I'he rock-shaft 52 is oscillated through its connection with the shaft M at a greatly reduced rate of speed and in the embodiment of the invention. hereln'illustrated it is continuously rocked between extreme posi- 55 tions. If desired, however, the rate at which the rock-shaft 52 is actuated may be varied over a considerable range and the form of the cam 06 may be changed from that illustrated to transmit a different periodic motion to the rock-shaft.

00` It has been demonstrated that if the rock-shaftl is continuously operated at the rate of forty cycles per minute while the driving shaft E5 rotates the drive-rolls |0 to wind 720 yards of yarn per minute ribbon winding will be prevented. Itv 65 is' t'o be understood, however, that the rate of cyclic change inthe speed of the driving elements machine for preventing the formation of rib-I bons" in the windingby positivelyr varying the speed ratio between the driving and driven elez5 ments through the use of a laterally expansible As the sections |05 and'l05 of thel position in the groove. 'Ihis action of centrifugal On the other hand, due to the momentum and inertia of the package during pulley directly actuated tu positively control and vary the diameter of the periphery engaged by a belt.

It will also be apparent to one skilled ln the art that the novel features of the present invention Imay have a variety'o'f mechanical expressions other than those illustrated and described. Further, it will 'be apparent that the ribbonbreaker -mechanism may be applied to other types of winding machines and that other forms of actuating lmechanism directly engaging and 'positively actuating the laterally expansible pullcy may be substituted for that herein shown. Therefore, without limiting myself in this respect, I claim:

1. In a windingmachine, a driving motor, a driving shaft, sheave-type pulleyson said motor shaft, a belt connecting the pulleys, one of 'said pulleys comprising llaterally adjustable sections, means directly engaging one of the sections of the pulley to move it laterally with respect to the other section, means for intermittently actuating the adjusting means to cause the belt to engage the pulley at different diameters on its periphery to vary the speed of the driving shaft, and means for continuously operating said actuating means.`

2. Ina windingmachine, a driving motor, a driving shaft, a sectional pulley on the driving shaft having one of itssections axially movable, a beltconnecting the motor iand pulley, a shifting fork engaging the movable section of the pulley, van oscillating cam for actuating the shifting forkto intermittently alter the diameter of the pulley engaged bythe belt whereby to vary the speed of the driving shaft, and means for oscillating the cam.

\3. In a winding machine, -a driving motor, a driving shaft, a rock-shaft operatively connected with the driving shaft, a sectional pulleyv on. the driving shaft having onesection axially movable, a belt connecting the motor and the pulley4 on the driving shaft, a pivoted lever having a shifting fork engaging the movable section of the pulley,a cam on the rock-shaft for actuating the lever to intermittently alter the diameter of the periphery of the pulley engaged by the belt to vary the vspeed of the driving shaft, and means foractuating the cam.

4. In a winding machine, a driving shaftyflan expansible pulley on the driving shaft for-#ary- 'the pulley, and means for intermittently operating said actuating means. v

5.- In a winding machine, a driving shaft, an expansible pulley on the driving shaft for varying its Vrotative speed comprising a section fixed to the shaft and a cooperating section slidably mounted on the shaft, a, shifting fork for actuating the sliding section, and means actuated by the driving shaft for moving the shifting fork to actuate the sliding section to vary the effective diameter of the pulley.

6. In a winding machine, a' driving shaft, a`

sectional expansible .pulley on the driving shaft having one section movable for varying the rotative speed of the driving shaft, a shifting fork engagingthe movable section of the pulley, a rock-shaft driven by the driving shaft, a cam on the rock-shaft engaging the shifting fork to intermittently actuate the movable section to -closethe pulley to-alter its e'ective diameter. and means for actuating the cam. V a

'1. In a winding machine, a driving shaft, a driven shaft, Lsaid shafts being journaledf to ro- 5 tate about iixed axes, pulleys on said shafts, a belt connecting the pulleys, one of said pulleys being expansible to alter the diameter of its periphe'ry engaged by the belt, mechanical means operating on-the expansible pulley to positively 10 alter the diameter of its periphery engaged by the belt, and means for intermittently actuating the pulley-operating means to alternately increase and decrease the speed f the shaft driven by the pulley. 15 8. In a winding machine,` a driving shaft, a l driven shaft, said shafts being journaled to rotate about fixed axes, pulleys on said shafts, a belt connecting the pulleys, one of said pulleys being expansible to alter the diameter of its peno riphery engaged by the belt, mechanical means engaging the pulley and operating to positively alter the diameter of its periphery, and means operated from one of the shafts for positively actuating the pulley-engaging means to alternatelyI increase and decrease the speed of the shaft driven by the pulley. l

9. Ina winding machine, a driving shaft, a-

drivenshaft, said shafts being journaled to rotate about ilxed axes, sheaf-type pulleys on said so shafts, a belt connecting the pulleys, one of said pulleys comprising laterally adjustable sections, mechanical means "r positively moving one of the sections of ti.,d pulley with respect to'-the u other to alter the diameter of the periphery of the vpulley engagedby the belt, and means for inter-.

Ainittently actuating the pulley-operating means vCERTIFIcal'E vvPatent-Lillo'. 2,091,902.

JAMES E'.

V to alternately increase and decrease the speed of the shaft driven by the pulley.

10. In a winding machine of the type in which' a package is rotated and `thegyarn traversedV axially thereof, the combination of an expansible pulley for drivingvthe package, a driving belt on said Pulley, mechanical actuatngmeans operating on said pulley to positively .alter the diameter of the pulley engaged by the belt, and means for intermittently operating the actuating means to periodically alter the speed of the pulley.

11. In a winding machine-of the type inwhich a grooved drive-roll rotates a. package by peripheral contact therewith and'traverses the yarn longitudinally thereon, the combination of an expansible pulley for driving the package, a driving belt on said pulley, mechanical actuating means operating on the pulley to positively alter the diameter of its periphery' engaged by the belt, and means for intermittently operating the actuating means to periodically alter the speed of the expansible pulley. Y

12. Ina winding machine o'f the type in which two series of yarn packages are arranged in spaced parallel relationship and driven by perl'pheral contact with a series of drive-rolls while the yarn is traversed longitudinally thereof, the combination of a pulley for driving the two series of drive-rolls, said pulley having a movable elemeans to periodically alter the speed-of the pulley.

JAMES E. AUTEN.

0F' CORRECTION t' l v August 5l, 195'?. AAUTEN.` f

It is hereby certified'that error appears in the printed specification .of-the above numbered patent requiring correction as follows: Page 5, second` column, line 18, claim 1, before the WordWeb-aft" insert and; and. that the said Letters Patent rshouldbe read with this correction therein" that theA same may conform to the record of the case in thef; Patent Office.

Signeiand sealed" this 19u; carer october, A.- D. 1937.

(Seal) -Henry Van Aradale. Acting Commissioner of' Patents.