US2450187A

US2450187A - Winding machine

Info

Publication number: US2450187A
Application number: US603040A
Authority: US
Inventors: Irving W Day
Original assignee: Leesona Corp
Current assignee: Leesona Corp
Priority date: 1945-07-03
Filing date: 1945-07-03
Publication date: 1948-09-28
Anticipated expiration: 1965-09-28
Also published as: GB615575A; CH264871A

Description

I. w. DAY 7 mm IIACHINE Sept. 28, 1948 Filed July 3, 1945 5 Sheets-Sheet 1 28,1948. I. w. DAY 2,450,187

IINDING mycnmn Filed July 3 1945 5 Sheets-Sheet z Sept. 28, 1948. I. w. DAY 2,450,187

. vuunme momma Filed July 5, v1945 5 Sheets-Sheet 5 Sept. 2a, 1948;

l. w. DAY

- winnme ubams 5 Sheets-Sheet 4 Filed July 3, 1945 Sept. 28,1948. Y 1, w. DAY 2,450,187

WINDING MACHINE 5 SheetsQSheet 5 Filed July 5, 1945 Patented Sept. 28, 1948 Irving 1. Day,

Cranston, B. 1., assignor to Universal Winding Company, Boston, Mass a corporation of Massachusetts Application July 3, 1945, Serial No. 003,040 I 9 Claims. (Ci. 242 -43) and other strand materials in cops, cones and the like.

In the present specification and claims the term "yarn is used in a general sense to indicate any type of attenuated material and the word package" is intended to designate the wound mass of yarn whatever its form or shape.

One object of the invention is to provide a winding machine for producing packages of yarn or the like with a so-called universal or precision wind.

Another object is to provide a machine for winding yarn with a precision wind while maintaining a uniform linear speed of draft on the material delivering to the package.

Another object is to provide a winding machine having a simplified form of traversing mechanism for distributing the yarn on the package by means of a traveler to eliminate the use of complicated and relatively heavy reciprocating parts.

Another object is to provide a traversing mechanism for winding machines in which the yarn is guided by a light-weight traveler oscillated through direct engagement with a skeleton cam having a narrow helical rim.

Another object is to provide a winding machine in which the strand of yarn or the like feeds directly from the tension device through the traveler to the winding package without diversion or abrupt bends in its course.

A further object consists in providing a winding machine having a minimum of moving parts and capable of operating at high speed without vibration and noise and with a reduced amount ofwear on the moving parts.

Further objects of the improvement are ,set forth in the following specification which describes a preferred form of construction of the invention, by way of example, as illustrated by the accompanying drawings. In the drawings:

Fig. 5 is an end view looking in the same direction as that of Fig. 4 and illustrating the gearcasing with its cover removed to disclose the gainer gearing, so-called, which is enclosed therein;

Fig. 6 is an enlarged perspective view of a modifled form of traveler for traversing the yarn on the package; and

Fig. 7 is a detailed end view of the same.

In the usualtype of machines for winding yarn with a universal, precision or V-wind the winding spindle is driven positively at a constant rate of speed to rotate the package and the yarn is traversed lengthwise of the spindle with the rate of draft of the yarn increasing progressively as the packagev increases in diameter. In this type of winding machine the traversing thread-guide is reciprocated at a uniform rate, that is, in certain ratio to the speed of the winding spindle except for a slight increase therein to give an increment of motion to the guide whereby it will lay the yarn in helical coils with each' coil in closely adjacent relation to the previously wound coil. With this type of precision winding the package is built up with the turns or coils in all of the layers extending from end to end of the package in a predetermined number of convolutions and crossing each other with a symmetrical V-shaped pattern on the surface of the package.

In another type of winding machine the package is driven at a progressively diminishing rate of speed by means of a drum or drive-roll contacting with the surface of the winding whereby v the draft on theyarn is maintained constant as Fig. 1 is a side elevational view of the complete winding machine showing certain of its casings in section or as broken away to reveal the mechanism enclosed therein;

Fig. 2 is an end elevation of the machine showing the relationship of the parts at the start of winding a cop or package;

Fig. 3 is a similar end view showing the parts in the position which they assume at the completion of winding a package;

Fig. 4 is a part-sectional view looking in the opposite direction from that of Fig. 3 and showing the machine with certain of the parts removed;

the package grows in size. In this latter type of winding the coils of. yarn are laid in more or less haphazard manner; that is, extending from end to endof the package with a maximum number of convolutions at the start of winding and decreasing to a minimum number at the completion of the package with the spacing between the coils increasing and diminishing constantly throughout the winding. For most purposes the u nijvers'al or precision wind is considered of evan ageyas producing a more stable and-superior forinfof package with a maximum amount ofyarn contained therein and capable of delivering with greater freedom under more constant tension. It is therefore an object of the present invention to provide a machine for producing precision wound packages while at the same time maintaining a uniform draft on the yarn deliveringto the winding without increase in the tensipn thereon as the package grows in diameter. Referring first to Figs. 1 and 2 of the drawings,

and pro died with suitable bearings for the variousrotating elements. As shown more particuiarly in Fig. 1, the frame 2' is of substantially rectangular shape in side view comprising a base 4 with uprights 5 and 6 rising therefrom for supporting a pair of bearings and 6' at-the top.

Journaled in the opposite bearings I and 8 is a winding spindle l6 which projects from one side of the frame 2 and carries a suitable packageor cop-holder H thereon. The cop-holder Il may be in the usual form of an expansible mandrel for receiving a cylindrical paper tube t or it may take the form of a truncated cone, not herein illustrated, when the machine is fitted for winding conical packages. chine the spindle i 6 is iournaled to rotate freely in its

bearings

1 and 6 but is not connected to be driven from the main source of power as is the usual arrangement in machines for producing packages with a precision wind. On the contrary, the winding spindle i6 is adapted to bedriven from a drum or drive-roll, indicated at II in the present drawings, which is mounted for peripheral contact with the surface of the package being wound and arranged to move away from the spindle as the winding increases in diameter during the growth of the package.

As shown in Figs. 1, 2 and 3, the drum or driveroll i5 is mounted on a horizontal shaft i6 journaledin bearings I! and i6 carried by a frame 26 of inverted U-shape. The frame 26 is formed with opposite parallel arms 2i and 22 which straddle the uprights 5 and 6 of the main frame 2 and [are pivoted on studs 23 and 24 screwed into the uprights. The drive-roll shaft I6 carries a series of integral sheaves or pulleys 25 for receiving a belt 26 passing over one of a series of sheaves or pulleys 21 on the shaft of an electric motor 36. The electric motor 36 is preferably mounted on the base 4 within the .sides of the frame 2 and'suitably secured in place by bolts 3|. The series of

pulleys

25 and 21 are of graduated size and positioned in reverse order so that the belt 26 may be shifted from one pulley to another to vary the speed of the shaft i6 and thereby the drive-roll different conditions of winding.

Pivota'lly mounted on the main frame 2 is a second bifurcated frame 32 carrying

bearings

33 and 34 for a horizontal shaft 35. The

arms

36 and 31 of the frame 32 are pivoted on the studs 23 and 24 which form the pivots for the frame 26. As shown in Fig. 1, the shaft projects outwardly beyond its bearing 34 on the frame 32 and carries a traverse cam 46 on the opposite side of the winding spindle I6 from the driveroll l5. The cam 46 is of skeleton construction comprising a hub 4| fast on the shaft 35 with curved spokes, 43 radiating therefrom for sup- .porting the helical rim 45 of the cam. The

spokes 43 and rim 45 of the cam 46 are preferably constructed of sheet-metal with the rim consisting of a relatively narrow strip encircling the hub 4i in helical configuration. The cam 46 may thus be of relatively light weight to reduce the effects of inertia and momentum when it is rotated with the shaft 35.

As shown more particularly in Figs. 2 and 3 the cam 46 is enclosed by a casing 46 of substantially cylindrical form mounted on the frame 32. The casing 45 may be mounted on a disk-like inner end plate 41" having an extension 46 bolted to the side of the arm 31 of the frame 32 at 46 In the present maand provided with a horizontal arm 56 extending laterally therefrom. A second circular disk 5| is attached to a flange 52 at the end of the arm 56 by means of bolts 53 for cooperation with the inner disk 41 to support the circular casing or :cover 46. The cover or casing 46 consists of a strip of sheet metal bent into cylindrical form with a gapbetween its horizontal edges, its circular edges being received in annular grooves 54' in the disks 4! and 5|. Preferably, the horizontal edges of the cover 46 are bent inwardly to lock in suitable depressions in the grooves 54 to hold the cover from turning on the disks. Extending laterally IaCI'OSS thecasing thus formed and fastened to the end disks 4! and SI is a horizontal bar 55 located within the gap between the horizontal edges of the cover 46. The rod or bar 55 may be of rectangular cross-section as shown in Fig. 2 to provide a support for the traveler 66 I5 in accordance with to maintain the latter in opposite relation to the winding spindle 16 while adapting it to slide back and forth therealong under the impulse of the cam 46.

The traveler 66 may be constructed of sheetmetal with a portion 6| overlying the top of the bar 55 and bifurcated to straddle the sides of the rim 45 of the cam 46 to connect it to be reciprocated therefrom. An extension 62 reaches downwardly and then across the under side of the bar 55 and is continued in a downturned flange 63 which may be slotted or bifurcated to receive the strand of yarn y feeding therethrough to the package. A modified form of traveler 65 may be constructed of wire as shown in Figs. 6 and 7 of the present drawings, one length 66 of the wire extending across the periphery of the rim 45 of the cam 46 and straddling its edges with rearward curved portions 61 engaging its inner rim. The wire is then extended forwardly to overlie thetop of the bar 55 with portions 66 bent inwardly and then down and outwardly, on the underside of the bar with the ends curved outwardly to provide a bifurcation or notch 16 for receiving the yarn 11.

It will be understood that the cam' 46 is mounted on the frame 32 to adapt it to move outwardly away from the winding spindle with the growth of the package P as indicated in Fig. 4. The swinging movement of the frame, 32 in this manner is caused by the movement of the drive-- roll l5 in the opposite direction and controlled by a connection between the two

frames

26 and 32 to be described hereinafter. In order to effect a smooth even motion of the two

frames

26 and 32 away from the winding spindle l6 suitable dogging means may be provided as next described. In the present embodiment of the invention the dogging means are mounted on the frame 32, see Figs. 2 and 4, and adapted to cooperate with an arcuate quadrant 15, the dogging device being of usual construction previously used in the art. The quadrant I5 is fastened at 16 to the inner side of the upright 6 of the frame 2 by a screw 11 and is formed on its under side with an arcuate tapered groove 16. The dog 86 may be constructed of wire with a bent portion 6| pivoted in a hole in the arm 31 of the frame 32 and an arm extending therefrom toward the quadrant 15 with an arcuate extension 82 of wedge-shape in cross-section engaging in the tapered groove I6 in the quadrant I5. A sheet-metal finger-lever 65 enclosing the projecing end of the bent portion 8| of the dog 66 is clamped thereto by a screw 66 to provide for manuahoperation of the dog 36-to release it from the quadrant 15. The dog 66 a spur gear 99 which with the surface of the winding between said member is normally maintained in binding engagement with the quadrant to resist movement of the frame 32 in counterclockwise direction, in Fig. 4, by means to the upper end of the finger-lever 95 with its end bearing against a'projecting plate 99 constructed integral with the end disk H, see Figs. 1 and 2. y

As has been stated, the winding spindle I9 is driven from the drive-roll I5 through the contact of the roll with the yarn on the winding package and in order that the traverse cam 49 may be rotated in proper speed ratio with that of the spindle it is driven therefrom. Referring particularly to Figs. 1 and 5, the winding spindle I9 carries in the gainer casing 92. The gear 99 meshes with a gear 93 which, in turn, meshes with a gear 94 engaging another gear 95. The gear 95 carries a companion gear 99 fast therewith which meshes with a larger gear 91 on a stub-shaft 99 iournaled in a bearing 99 on the casing 92. On the opposite endof the stub-shaft 99 is a sprocket-wheel I99 which is connected by a chain IN to a sprocket I92 fast on the cam-shaft 35. The gears 94, 95 and .95 are mounted to adapt them to be interchanged with other gears of different size whereby to permit varying the ratio between the speed of the winding spindle I9 and that of the came shaft 35; this being the conventional arrangement as previously used in the art for adjusting the speed ratio between two shafts or other rotating elements. This type of fixed gainer gearing being well known to those versed in the art, it will not be described more specifically herein. As shown in Figs. 1 and 5 the gainer casing 92 is supported on an extension I93 of the main frame 2 and secured thereto by bolts I94. To give access to the gears in the casing 92 a cover I95 is removably mounted across its opening, being held at the bottom in a ledge I95 and fastened at the top by a latch-spring I91.

The frame '29 which carries the shaft I9 and drive-roll I5 is maintained with the roll in contact by means of shown in weights I99 suspended from a strap H9 Figs. 1 2 and 3. The strap H9 is fastened to the frame 29 at III and thence passes over a grooved pulley I I2 journaled on the inner face of the upright 9 of the main frame 2. The strap II9 depends through openings in the base 4 of the frame 2 and the top of the table or bed 3 and carries a rod I It at its end supporting a plurality of the weights I99. The weights I99 can be added to or subtracted from to adjust the pressure of the drive-roll I5 against the surface of the package being wound.

The means for effecting proportional receding movement of the drive-roll I5 and cam 49 consists in a connection between the arms of the frames 29 and as a part of the arm 31 of the frame 32 is a curved arm or extension II9 provided with an arcuate slot I29. A similar curved arm or member I2I is connected to the arm 22 of the frame 29, being formed with an arcuate slot I22 curved in the opposite direction from that of the slot I29 on the frame 32. The member I2 I is pivoted on the stud 24 which forms the pivot for the frame 29 and is connected to the arm 22 of said frame by means of a, bolt I23 passing through a slot I24 in the arm whereby to provide for relative adjustment and the frame 29. A pair in the arcuate slots I29 and of rollers I25 engaging I22 are journaled on a stud I29 formed with a as viewed of a leaf-spring 91 fastened drives a train of gearing 32 as next described. Formed.

flange or head I21 which is adapted to slide in a vertical slot I29 on the outer face of the upright 9 of the frame 2. The flange or head I21 on the stud I29 engages grooves I29 in the sides of the slot I29 to hold the stud in place and the outer end of the stud may be riveted over to prevent displacement of the rollers therefrom.

-' During the operation of the machine the frame 29 is swung in clockwise direction, as viewed in Figs. 2 and 3, as the drive-roll I5 recedes from the winding spindle I9 during the growth in the winding and the rollers I25 will travel in the arcuate slots I29 and I22. The rollers I25 will be caused to move in a vertical path as guided by the sliding movement of the stud I29 in the slot I29. During this vertical movement of the stud I25 the rollers I25 will act between the two slots I29 and 122 to cause the frame 32 to move by and with the movement of the frame 29, that is, in the opposite or counterclockwise direction as viewed in Fig. 3. The curved member I2I on the frame thereto to cause the frame 32 to move at such a rate that the traveler 99 which forms the guiding The relative movement of the two frames 29 and 32 is described more in detail in connection with the explanation of the operation of the complete machine.

P The operation of the machine is controlled by suitable stopping and starting mechanisms which may be of any conventional type as well known to those versed in the art. For starting the winding operation a hand-lever I49 is mounted at the top of the main frame 2, being -secured to a rock-shaft I4I shown in Fig. 1. This lever I49 may be arranged to close a switch in the circuit for the electric motor 39 or it may be connected to actuate suitable clutch-means to start the rotation of the drive-roll shaft 35. Suffice it to state that the lever I49 has a curved arm or extension I42, shown by dotted lines in Fig. 3, formed with a shouldered detent I43 at its end which is engageable with a similar detentslioulder I44 on an arm I45 to maintain the.

,A usual form of tension-device i59 is mounted on an arm I 5I attached to the side of the frame 2 and adapted to apply a uniform tension to the strand 1/ .as it. feeds to the windingijpackage, this part of the machine being of conventional construction forming no part of the present invention and therefore requiring no further description herein. Suflice it to state that the yarn 1/ is drawn upwardly from its source of supply, not shown, threaded through'the tension-device I59, thence led to the cop-tube t on the winding spindle I9 and its end secured thereto to start the winding of a package. The method of operation of the machine during the progress of the winding is explained as follows:

To start the operation of themachine the lever I49 15 swung into the position shown in Fig. 2 to engage the detents I43 and I44, see Fig. 4, whereby to cause the drive-roll shaft I9 to be driven from the motor 39 or through any other 29 may be adjusted in relation the bolt I23 and slot connection with a source of power. Before starting the machine the drive-roll l must be placed with its periphery in contactwith the surface of the cop-tube t mounted on the cop-holder II; this being accomplished by releasing the dog 80 and swinging the frame 32 in clockwise direction to cause the frame 20 to be moved in the opposite direction to bring it into the position shown in Fig. 2. As the frame 32 is thu moved to swing the frame 20 and set the drive-roll I5 in operative contact with the cop-tube t the traverse cam 40 will be carried into close association with the periphery of the cop-tube. As before stated, the frame 32 carrying the'cam 40 may be set initially in such position that the traveler 60 wllleither contact with the yarn on the package during the winding or be spaced at a slight distance therefrom; this being accomplished by properly adjusting the relationship between the curved arms H9 and I2I through the mean of I24 in the arm 22 of the frame 20, see Fig. 2.

As the drive-roll I5 is driven from the motor 30 its contact with the cop-tube it will rotate the winding spindle ID to cause the yarn to be coiled on the tube. Meanwhile, the cam 40 will be driven from the winding spindle through the driving connections at the opposite end of the machine. That is, the gear 90 on the winding spindle III will drive through the

gears

93, 94, 85, 96 and 91 to rotate the stub-shaft 98 and thereby the sprocket I 00 to impart its rotation through the chain IM to the sprocket I02 on the end of the cam-shaft 35. The cam 40 thus will be rotated to impart reciprocating motion to the traveler 60 to cause the yarn strand 1! to be traversed back and forth longitudinally of the cop-tube t on the winding spindle I0, The traveler 60 will slide back and forthon the horizontal bar 55 and thereby be guided in a horizontal path parallel with the axis of the winding spindle I0; although it has been determined that the horizontal guiding means for the traveler is not essential. That is to say, if the traveler 60 is allowed to bear against the surface of the winding the rotation of the winding spindle in the direction indicated by the arrow in Fig. 2 will tend to hold it in definite relation with respect to the spindle without the use ofv any track or guide therefor.

As the yarn feeds to the winding spindle I0 drawing through the tension-device I 50 tension is applied thereto to insure that the coils of yarn will be deposited in place with the layers firmly compacted to produce a stable package containing a maximum amount of yarn in a given space. As the yarn is traversed backand forth by the reciprocation of the traveler 60 it will be laid in helical coils extending from end to end of the package P being wound and disposed in precise relationship forming a definite pattern on the surface of the winding. Due to the fact that the traverse cam 40 is driven directly from the winding spindle III the ratio of speed between these two elements is maintained substantially constant so that the package will be wound with a uniform number of turn in each layer. The mass of yarn being wound on the spindle I0 constantly increases in diameter during the winding and consequently the speed of the winding spindle I0 is progressively diminished from start to finish of the package. Therefore, since the drive-roll I5 is rotated at a uniform speed and the package driven therefrom through peripheral contact therewith there will be no increase in the rate of sion applied thereto as in the slots I20 and I22 8 drafton the yarn being fed to the package. This is an important consideration since in most machines for producing packages with the Universal or V-wlnd the winding spindle is driven positively and consequently the linear speed of the yarn increases progressively with the increase in circumference of the package. Due to this usual method of operation means must be provided for gradually relieving the tension on the yarn delivering to the package which results in complication of the mechanism of the machine. For many types of material it is tain a uniform speed of draft of the yarn during the winding of the package so as not to submit the yarn to undue strain or abrading action, while at the same time providing fora maximum rate of production in the machine. The present invention provides this and other improvements as has been set forth in the objects stated in the first part of the specification.

It is to be further observed that due to the fact that the yarn y feeds directly through the traveler 60 toward the top of the package P as th latter .rotates in the direction indicated'by the arrow in'Figs. 2 and 3, it is relieved of any undue tenby diverting its course in abrupt bends. Consequently, delicate materials may be handled without undue strain and without abrading or roughening the surface of the yarn. It has been stated that the speed ratio between the winding spindle and the traverse cam remains substantially constant, but it should be explained that the cam is preferably driven with a slight gain to impart an added increment of motion to the reciprocating traveler 60. This is accomplished through the use of suitable gainer gearing in the casing 92, the object being to cause each coil of yarn to be laid at the side of the previously laid coil in close juxtaposition thereto. This is a well known feature of the Universal or precision method of winding whereof the coils of yarn are prevented from being disposed one on top of another during the building of a package.

As the package continues to wind on the cop- 'tube t to form overlying layers of crossing coils the increase in diameter of the mass will cause the drive-roll I5 to be forced'outwardly away from the winding spindle in the manner indicated in Fig. 3 of the drawings. movement of the drive-roll I5 with respect to the winding spindle III the frame 20 is rocked or swung in clockwise direction as viewed in Fig. 3, thereby causing the rollers I25 to ride upwardly of the arms or members I I 9 and I2 I, respectively, as the stud I25 is guided upwardly in the vertical slot I28. The movement of the roller I 25 in the slot I 20 of the curved arm H9 has the effect to rock the frame 32 in counterclockwise direction, as viewed in Fig. 3, to cause the traverse cam 40 to recede from the winding spindle III with a rate of motion commensurate with that of the drive-roll I5. As has been explained. the curved arm I2I is adjustable on the frame 20 by means of the bolt I23 in the slot I 24 and thereby the relationship between the two arms or members H9 and I 2| may be regulated so that the traverse cam 40 will be moved at the same rate as the roll I5 and in conformity withthe growth of the winding package. If desired. the initial setting of the curved arm I 2| may be such that the traveler 60 is caused to reof advantage to main- During this receding maintained constantly in contact with the surface of the winding under the pressure created by the weight I09 suspended by the strap III) to act on the frame 20. As before noted, the dog 80 carried by the frame 32 is caused to slide in the groove 18 of the quadrant 15 as the two

frames

20 and 32 swing away from the winding spindle l0. Any tendency for the frames and the parts carried thereby to vibrate or rebound'as they are being forced outwardly by the winding package is prevented by the binding of the tapered extension 82 of the dog 80 in the groove 18 of the quadrant.

After the package P has been completed to the required size the drive-roll l and traveler 60 may be moved away from its surface by swingin .the frame 32 outwardly so that the package may be withdrawn from the winding spindle It). To recommence the winding operation it is only necessary to place a new cop-tube t on the spindle 10, attach the end of the yarn y thereto, return the drive-roll l5 into contact with the surface of the cop-tube and cause the yarn to be inserted. in the central notch or opening in the traveler 60. The machine is then started to operate by energizing the motor 30 or connecting suitable clutch-mechanism on the drive-roll shaft l5 through the medium of the hand-lever I40.

It will be observed from the foregoing description that the present invention provides an improved winding machine for producing packages of yarn or the like with a precision wind while maintaining a uniform speed of draft, of the yarn throughout the winding. The improved machine is of simple construction and arrangement embodying a minimum number of moving parts with elimination of the usual eating traverse-bars and other moving of relatively great weight.

elements While the improved machine is herein shown in a preferred form of construction, it is to be understood that various modifications may be made in. the structure and arrangement of its parts without departing from the spirit or scope of the invention. Therefore, without limiting myself in this respect, I claim:

1. In a winding machine, a rotatable winding spindle for supporting a winding package, a driveroll adapted to contact the package to rotate the winding spindle and to recede therefrom with the growth in the winding, a cam arranged in parallel relation to the winding spindle and initially positioned in close association therewith,a mounting provided with bearings for the cam and movable relatively to the winding spindle to adapt the cam to recede therefrom with the growth of the package being wound; means for connecting the winding spindle to drive the cam, and means reciprocated by the cam to traverse the yarn longitudinally of the winding spindle.

2. In a winding machine, a winding spindle rotatable in a stationary bearing, a drive-roll supported opposite said winding with the yarn wound thereon and adapted to recedetherefrom with the growth in the winding, a cam mounted on the oppo 'te side of the winding spindle, means carrying the cam and movable to adapt it to'rece'de from the spindle with the growth in the winding, means for rotating the drive-roll,

means connecting the winding spindle to rotate the cam, and means actuated by the cam to traverse the yarn longitudinally of the winding spindle.

3. In a winding machine, a main frame, a winding spindle journaled in said frame, a second frame pivoted to the main frame, a drive-roll iournaled in said pivoted frame to adapt it to contact the package being wound and to recede from the spindle with the growth in the winding, 9, third-frame pivoted to the main frame, a cam rotatably mounted on the third frame in opposite relation to the winding spindle and adapted td recede therefrom with the growth in the winding, means reciprocated by said cam for traversing the yarn longitudinally of the winding spindle, and means connecting the winding spindle to rotate the cam.

4. In a winding machine, a main frame, a winding spindle-rotatably mounted on said frame. a

grooved cams, reciprospindle for contact I second" frame pivoted to the main frame, a driveroll rotatably supported on said second frame to adapt it to recede from the winding spindle with the growth in the package wound thereon, a third frame pivoted on the main frame, traversing means carried by the third frame to adapt it to recede from the winding spindle with the growth in thewinding package, means connecting the winding spindle to drive the traversing means, and means connecting said pivoted frames to move in unison in conformity with the growth of the winding package.

5. In a winding machine, spindle, a drive-roll for rotating the winding spindle by peripheral contact with the yarn in the winding, traversing means arranged opposite the spindle, and means movable by and with the receding movement of the drive-roll to cause the traversing means to recede from the winding spindle in conformity with the growth in the winding.

6. In a winding machine, a rotatable winding spindle, a drive-roll for rotating the winding spindle by peripheral contact of the yarn wound thereon,- means for normally maintaining the drive-roll in contact with the yarn wound on the winding spindle while adapting it to recede from the spindle with the growth in the winding, traversing means for distributing the yarn on the spindle, means for supporting said traversing means to adapt it to recede from the spindle with the growth in the winding, and means connecting the drive-roll supporting means to move the traversing means away from the-winding spindle during the receding movement of the drive-roll therefrom.

7. In a winding machine, a main frame, a winding spindle journaled in said frame, a drive-roll for rotating the winding spindle .by peripheral contact with the yarn wound thereon, a movable frame provided with bearings for supporting the drive-roll to adapt it to recede from the winding spindle with the growth in the windin a cam for traversing the yarn longitudinally of the winding spindle, a second movable frame provided with bearings for supporting the cam to adapt it to recede from the winding spindle with the growth in the winding, and means connecting the frame for the drive-roll to the frame for the cam to cause the latter to move the cam away from the winding spindle in conformity with the growth of the winding package.

8. In a winding machine, a rotatable winding spindle, a drive-roll for rotating the winding spindle by surface contact with the yarn wound thereon, a pivoted frame for supporting the driveroll to adapt it to recede'from the winding spindle a rotatable winding with the growth in the winding, means for normally resisting the movement of said frame to maintain the drive-roll in contact with the yarn the traversing means'to recede from the winding spindle with the growth in the winding, arcuate slots in said frames, a pair of rollers engaging in the slots of the frames, and means for guiding said rollers in a straight course to cause them to 'act between the frames to transmit the motion of the frame carrying the drive-roll to the frame carrying the traversing means whereby both frames are moved in conformity with the growth in the winding.

9. In a winding machine, a rotatable winding spindle, a drive-roll for rotating the winding spindle by surface contact with the yarn wound thereon, a pivoted frame for supporting the driveroll to adapt it to recede from the winding spindle with the growth in the winding, means for maintaining the drive-roll in contact with the yarn during the winding of a package on the spindle, a second frame pivoted on the same axis as the first frame, traversin means carried by the second frame in opposed relation to the winding spindle, a curved arm on one of said frames having an arcuate slot therein, a curved arm adjustasaid second frame being mounted to move to adapt bly mounted on the other frame and formed with an arcuate slot extending in the opposite direction from the slot in the arm on the first frame, an upright member formed with a vertical slot, a stud slidable in the vertical slot, and rollers journaled on said stud and engaging the-slots in the two arcuate arms to cause the frame supporting the traversing means to move at the same rate as the frame supporting the drive-roll as the latter recedes from the winding spindle during the growth in the winding package.

IRVING W. DAY.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS FOREIGN PATENTS Country Date Great Britain Apr, 24, 1924 Great Britain Aug. 13, 1931 France Aug. 27, 1934 Number Number