US1882500A

US1882500A - Winding machine

Info

Publication number: US1882500A
Application number: US389283A
Authority: US
Inventors: Charles H Jones
Original assignee: Leesona Corp
Current assignee: Leesona Corp
Priority date: 1929-08-29
Filing date: 1929-08-29
Publication date: 1932-10-11
Anticipated expiration: 1949-10-11
Also published as: FR696881A; DE572051C

Description

c. H. JONES WINDING MACHINE Filed Aug. 29. 1929 4 Sheets-Sheet l 649% M) V i Oct. 11, 1932- c. H. JONES WINDING MACHINE Filed Aug. 29, 1929 4 Sheets-Sheet 2 Oct. 11,1932. c. H. JONES 1,882,500

WINDING MACHINE Filed Aug. 29,.1929 4 Sheets-Sheet 3 a Aw Oct. 11, 1932. c. H. JONES 1,882,500

WINDING MACHINE Filed Aug. 29 19 29 4 Sheets-Sheet 4 Patented Oct. 11, 1932 UNITED STATES PATENT OFFIQE CHARLES H. J ONES, OF PROVIDENCE, RHODE ISLAND, ASSIGNOR TO UNIVERSAL WIND- ING COMPANY, OF BOSTON, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS WINDING MACHINE Application filed August 29, 1929. Serial no. 389,283.

This invention relates to improvements in winding machines for winding thread,yarn and other strand material into cops or packages for transfer to other processes. The present improvements are particularly directed to winding machines of the so-called frictionalor drum-driven type in which the cop or package is rotated by peripheral con tact with the surface of a drum or drive-roll.

One object of the invention is to provide a winding machine of the type specified in which the cop or package is maintained constantly in contact with the surface of the drum or drive-roll and the winding operation is arrested by stopping the rotation of the drum rather than by lifting the cop off therefrom. I

Another object of the invention is to provide a winding machine of the type specified in which the rotation of the drum or driveroll is arrested promptly through the means of a brake acting thereon. 7

Another object of the invention is to provide a winding machine of the type specified in which the reciprocation of the thread guide is arrested before the package comes to rest.

Another object of the invention is to pro vide a winding machine having means for arresting the reciprocation of the threadguide in such manner as to cause it to come tn rest at a point removed from itsextremes of traverse whereby to prevent the strand from over running the ends of the package.

Another object of the invention is to provide a winding machine of the type specified in which the stop1ing-mechanism for the drive-roll and thread-guide iso'perated automatically upon the breakage or exhaustion of the strand being wound, and also when the cop or package reaches a predetermined size. 7 7

Another object of the invention is to pro.- vide a win ding machine of the type specified in. which the winding. is performed with a gradually shortened traverse to build the cop or package with tapered ends.

inother object of the invention is to proride winding machine of the type specified capable of high speed operation,substantially automatic. in its functioning, convenient to'operate and durable in use over long periods.

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'eXamp-le, as illustrated in the accompanying drawings. In the drawings:

Fig. 1 is a side elevationof one unit of the present improved winding machine shown in connection with the traverse-mechanism which operates the threadguides for a plurality of units;

Fig. 2 is an enlargedend view of the winding mechanism of one unit showing its parts in cooperative relation during the winding of 'a cop or package;

Fig. Sis a similar end view showing .the winding mechanism with its parts at rest after the completion of a full cop or package;

Fig. t is a detailed sectional iew .on line 4:4L of Fig. 1 showing the connections between the traverse-cani and the reciprocating traverse-bar of the machine;

Fig. 5 is an enlarged cross-sectional view on line 55 of Fig. 6, showing the'clutcfh for connecting the drive-roll with itsdrive-shaft,

and illustrating the clutch-members as oper atively engaged;

Flg. 5 15, a similar sectional view showing the clutch-controlling means in action with the clutch released and the brake applied Flg'. 6 is a longitudinal sectional view of the clutch taken on line ;66 of Fig. 5 and showing the brake released;

Fig. 7 is a front" view of the traversemechanism of the machineshowingthe means for disconnecting the traverse-arm from the traverse-bar; p i

8 is a similarview illustrating the traverse-arm as disconnected from the bar and the thread-guide brought .to nestmidway between its extremes of traverse and Fig. 9 is a detailed view of the detentmeans for the stopping mecjhanism. i

As shown in the present drawings the invention is applied to'a winding machii' e comprising a pluralityof duplicate headsor units WhlCll maybe operated from asingle drivingmeans and travers-motion. As all of the individual units of the machine are identical in construction and arrangement, only one unit is herein illustrated.

Referring first to Fig. 1, 2 designates a bed i or table along which the winding units are disposed in a double row in any number as desired. Mounted on one end of the bed 1s the traverse-motion comprising, in this instance, a rotatable cam 3 driven from a shaft lustrated as they may be ofany usual arrangement comprising gears, pulleys or the like connected to a suitable source of power.

The cam 3 is formed with a hub 7 mounted fast on the shaft 4 and supporting a cylindrical rim 8 provided with a helical groove 9. Arranged at the front of the cam 3 in line with its axis is a slide or cross-head 14 connected to a traverse-bar 15 which extends the length of the machine and serves as a means for reciprocating all of the threadguides for the several winding units. The slide or cross-head 14 slides in grooves or ways 16 which are formed in the opposite sides of a pair of rails 17 supported by endplates 18 fastened to the sides of the brackets 5 by means of screws 19. A bowl or roller 20 is carried on the end of a stud 21 inserted through the slide 14 and held in place by a nut 22. The roller 20 engages the helical groove 9 in the cam 3 whereby the rotation of the latter causes the traverse-bar 15 to be rec1pr0- cated in, a horizontal path.

The winding mechanisms, of the several units are mounted between pairs of upright frames or brackets 25 spaced along the bed 2 and fastened thereto by means of bolts 26,

see Fig. 2. The brackets25 are tied together by a central horizontal rod 27 extending through hubs 28 thereon. The brackets are of ribbed construction having arms 29 overhanging the side of the bed 2 and provided with bearings 30 at their outer ends in which is journaled the drum-shaft 6. The brackets 25 are preferably of double construction to adapt them to support the winding mechanisms of the two opposite rows of units arranged on either side of the bed 2." In Fig. 2 of the drawings, however, only substantially one-half of the bracket 25 is shown,

the other half being of the same construction and arrangement. The brackets25 are also provided with bearings for the longitudinally extending traverse-bar on each "side of the machine,Fig. 2 illustrating one 'of these bearings 31 as slotted vertically to 1 receive the bar 15 which slides therein.

, brackets 25.

The drum or drive-roll 10 for each unit is mounted free to turn on the shaft 6 between the bearings 30 on the brackets 25. At one end of the drive-roll 10 is a thrust collar 33 secured fast to the shaft 6 by means of set-screw 34, and at its opposite end the roll is provided with an elongated hub 35. Abutting the opposite end of the drive-roll 10 is a clutch-member 40 having an overhanging flanged rim 41 which surrounds the periphery of the hub on the roll. The clutch-member is secured fast to the shaft 6 by means of a set-screw 42 so that it takes the thrust of the drive-roll at this end, see Fig. 6. The drive-roll 10 is counterbored at both ends to receive bushings 36 which serve as the bearings of the roll on the shaft 6, these bushings being preferably constructed of lubricant-impregnated material to provide for long wear without oiling. The bushings 36 may be secured rotatably with the drive-roll 10 by means of pins 37, and while only one bushing is shown in the drawings it will be understood that another is provided at the opposite end of the roll with its arrangement identical with that described.

The clutch-member 40 is connected to rotate the drive-roll 10 through the means of a centrifugally-operated weight 45, preferably in the form of a steel ball. As shown in. 5 and 6, the ball 45 is held in a radial bore or pocket 46 in the hub 35 of the drive-roll 10 to adaptit to bethrown outwardly to engage the sides of an aperture 47 in the rim or annulus 41' of the clutch-member 40, centrifugal force acting to project the ball into the aper ture 47, the aperture or opening being restricted in size to prevent the ball from pass- Oil ing therethrough. The clutch is released by projecting the ball radially inward so that it will roll on the inside of the rim 41 as'the clutch-member 40 turns with respect to the roll 10 in the manner indicated in Fig. 5

invention the cop or package, represented. at

G in the drawings, is supported on a wooden or fiber core or mandrel T. The ends of the core T are suitable gudgeon-pins 48 which have 49 adapted to abut thereagainst. 'The grid goon-pins 48 serve as the axial support for the core T and the package wound thereon, being journaled in a swinging frame or cradle 50. i

The frame or cradle 50 comprises opposite curved arms 51 having hubs, 52 pivot-ed on the horizontal rod 27 which extends between the The opposite arms 51 of he frame 50 areconnected by a cross-bar 53, see

provided with bores for receiving Y massage Fig. 1, andprojecting'from the side of one of the arms is a lug 54 carrying an adjustable stop-screw 55 secured fast therein by means'of a nut 56, this element serving for a purpose as later explained.

At the outer ends of the arms51 are hubs 57 carrying studs or pins 58, see Fig. 3. Clamped to the pins 58 are hair-pin-sh'aped spring-clips 60 which project from the sideof the hubs 57 to adapt them to receive the ends of the gudgeon-pins 48. Each springclip 60 has one leg clamped against the fiatted upper side of the pin 58 by means of a etscrew 61 with its forward end bent downwaroly in a l p or catch 62. The lower yieldable leg 63 of the clip 60 is curled upwardly at its forward end in a lip 64, and rearwardly thereof is an upstanding ear bent from the side of the clip. Through this arrangement the gudgeon-pins 48 at the ends. of the core or mandrel T may be pressed down against the outwardly projecting lips 64 of the spring-clips 60 to ntroduce them in back of the catches 62 with the cars 65 serving as a stop to prevent the gudg-eons from moving back on the clips. The core or mandrel T may thus be conveniently inserted into position between the ends of the arms 51 of the cradle 50 with its gudgeon-pins 48 journaled in the clips 60 to'ada-pt the core to be rotated to wind on the material. One of the arms 51 of the cradle 50 is preferably provided with a finger-piece 59 which maybe grasped in the hand to lift the cradle to raise the cop or package off from the drive-roll 10.

The thread-guide which traverses the strand-material on the cop or package is connected to be reciprocated from the traversebar 15 through the medium of an oscillatable arm or lever 90, shown most clearly in Figs. 2. 7 and 8. The thread-guide 70 is preferably constructed of sheet-metal to render it light in weight and, as shown in Figs. 1 and 2, it comprises a bifurcated plate or arm 71 having ears 72 embracing a horizontal rod serving as a track on which the guide sides. The rod 75 is held in bearings 73 and 74, one

of which is bolted to the top of the left-hand bracket 25, see Fig. 1, while the other, is

" constructed as part of an upright arm or standard 7 6 bolted to the top of the righthand bracket 25 at 77, see Fig. 2. The rod 75 is fastened in its bear'ngs 73 and 7 4 by setscrews 7 8 or other suitable means. The thread-guide proper consists of a buttonshaped element held in the outer end of the arm 71 and formed with anotch or threadway 81 through which the strand of thread or other material, indicated at 1 feeds to the package. Rising from the back of the threadguide arm 71 is a wire 82 carrying a porcelain guide-eye 83 through which the strand draws as it feedsto the guide.

In machines for winding silk, rayon and other similar'materials.itis desirable that the thereto.

thread-guide be held out of contact with the surface of the cop or package being wound in order that it may not chafe and abrade the delicate filaments. It is essential, however, that the guide be maintained in close proximity to the surface on which the winding is being performed so that it will dispose the coils or turns of winding precisely and accurately in place without danger of overruns at the ends of the package. In accordance with the onesent invention this automatic control of the relationship of the guide with rcspectto the surface of the winding is accomplished through an improved means as next described.

Fastened to the back of the guide-arm 71 plate 85 formed with an .arcuate slot 86. A

rod or track 87 extends horizontally between the arms 51 of the frame or cradle 50, being held in suitable holes :in the arms by means of set-screws 88, see .Fig. 2,.and disposed to pass through the slot 86 in the plate 85.. The slot 86 is thus caused to regulate "the position of the thread-guide 70 in accordance with the upward m vement of "the frame or cradle 50 as the axis of the cop recedes from the driveroll 10 with the growth in the winding. It will be observed by reference to Figs. 2 and 3 that the threaduide arm '71 swings on the rod 75 as a :pivot as the frame 50 is rocked upwardly. The slot 86 in the plate 85- is disposedeccentrically with respect to the pivotal axis 75 :on which the arm 71 swings and its relation to the pivot'27 of the frame or cradle 50 is such thatas the rod 87 slides inthe slot it maintains the thread-guide button 80 slightly spaced away from the surface of the winding, but nevertheless in close proximity Atthe forward end-of the slot 86 is a notch 89 which provides that after the plate 85 has been slid clear back on the rod 87 the frame or cradle 50 may he raised to lift the cop or package ofl from the driveroll 10 to facilitate the dofling and the application of anew core thereto.

The arm 90 which connects the threadguide 70 with the traverse-bar 15 is preferably constructed of sheet-metal with its upper end bent or folded into a'loop 91, the sides leg96between which and an 'nner leg 9? er:- tends a horizontal pin or rod 100. The

96 on the arm 90 is formed with an arcuate edge 98 disposedconcentrically with respect to the aXisofthe-rod 75 on which the threadguide arm 71 pivots. This portion of the arm 90 is adapted to pass through and engage with a central. notch or opening etween the legs of the thread-guide arm 71. It will therefore we observed that the arm 90 is en gaged with the thread-guide arm 71 in such manner as to sheet the traverse of the guide from the reciprocation of the bar 15, and the interengagcinent between these parts is arranged to case a progressive shortening of the traverse of the uide as the latter rides up on the arcuate edge 98 of the arm 90 in the manner as later more fully explained.

The arm 90 is rocked or oscillated about its pivot 93 through its connection with the reciprocating traverse-bar by means of a coupling-pin 100 engaging 1n a slot or notch 102 in the upper edge of the bar. Normally, the arm is suspended from its pivot 93 with the force of gravity acting to hold its coupling-pin in the notch 102 in the bar 15, and as the bar reciprocates the arm swings between the positions illustrated in Fig. 7 by full lines at bne extreme and by dotte lines at the opposite extreme, the loop 91 sliding on the pin 93 during this oscillating movement of the arm. WV hen the winding operaticn is to be arrested the thread-guide is brought to rest by disen aging the pin 100 from the notch 102 in the traverse-bar 15 to uncouple the arm 90 therefrom. In order to avoid the chance of the strand slipping down over the end of the package when the winding is started again it is desirable that 1 the thread-guide be stopped at a point removed from its extremes of throw or, in other words, intermediate the ends of its trave- 2. The present invention provides for this improved method of arresting the reciprocation of the thread-guide at a point lntermediate the ends of'the package and the means for accomplishing this result are conctcd and arr n ed as next described. The coupling-pin 100 is lifted out from the notch 102 in the traverse-bar 15 by means of a rockable lever 105 pivoted on the rod 27 on wl ich the frame 50 swings, see Figs. 3, 7 and 8. The lever 105 is of substantially bellcrank shape having a depending arm 106, to

i end of which is attached a spring 107 anarm of the bracket 25. The spring ds to rock the horizontal arm of the 3 lover 105 upwardly and at the outer endof 5-3 the arm 90 from the traverse-bar 15 takes the pin.

place at this point: 7 It is further noted that the engaging surface or rounded edge 111 is beveled off or inclined downwardly at its sides so that should the extension be raised before the arm 90 reaches the center of its throw the coupling-pin 100 will ride up the inclined faces 112 to effect the same result as when the extension is lifted against To insure that the coupling-pin 100 shall not be disengaged from the notch 102 in the traversebar 15 except at its center of throw a pair of guard-rods 115 are arranged to extend parallel with the top of the bar with their ends spaced apart to provide an aperture or gap through which the pin may be lifted. The rods 115 are held in lugs 116 projecting forwardly from the bearings 73 and 7 1 in which the guide-rod 7 5 is mounted. To insure that the coupling-pin 100 shall drop down into engagement with the notch 102 in the traverse-bar 15 immediately it is released by the lever 105, a spring-member 117 is fastened to the side of the extension 110 with its rearwardly extending portion bent round in a loop at 118 and provided with a downwardly projecting blade 119 which bears against the top of the coupling-pin 100.

The traverse-stopping lever 105 is operated to release the coupling-pin 100 under the action of the stopping-mechanism which controls the operation of the drive-roll 10. The stopping-mechanism comprises a lever 120 pivoted on the horizontal rod 27 and pro vided at its outer end with a brake-shoe 121, see Figs. 2, 3 and 5, which is adapted to make contact with the periphery of the hub 35 of the drive-roll 10. The stopping-lever 120 is thrown upwardly to engage the brake-shoe 121 vith the hub 35 under the action of a spring 122 fastened to a depending finger 123 on the lever and anchored at 12 1 to a of the bracket 25. The stopping-lever 120 is connected to move the lever 105 into inoperative position through the means of a lug 126 on the lever 105 projecting from its under side and engaging beneath a pin or lug 127 on the stopping-lever.

Projecting laterally from the forward end of the stopping-lever 120 is a finger or lug adapted to be carried into position to engage that portion of the ball 45 of the clutch 40 which projects through the aperture 17 when the d1'ive-roll'10 is clutched to the shaft 6. This action causes the ball -15 to be projected radially inward whereby it is released from the aperture 417, see Fig. 5, to free the clutclrmember 10 from the drive roll 10. At this juncture the brake-shoe. 121 is engaged frictionally with the periphery of the hub 35 on the drive-roll 10 to arrest the rotation of the latter and thereafter the ball 4C5 will travel on the interior of the rim ii of the clutch 10, see Fig. '5, as the latter rotates with the shaft 6.

The stopping-lever 120 is held inoperative portion during the winding of the packagethrough its engagement with a detent-latch or lever 128 pivoted on the stud 108, previously referred to as being held in a boss 109 on the bracket 25. The lever 128 extends upwardly from its pivot 108 and is provided on its forward side with a detent shoulder 129 adapted to engage across the square edge of a substantially triangularly-shaped lug 130 projecting from the side of the brake-lever 120, see Fig. 2. The detent-lever 128 is maintained in engagement with the lug 130 on the brake-lever 120 under the action of a spring 131 which is looped around its main arm and, extending around its hub, projects rearward- 1y therefrom with its end 132 bearing against the foot of the bracket 25, see Fig. 3. The lever 128 has an L-shaped head 133 carrying a stud 13& on which is pivoted a knock-off lever 135. The forward pointed end of the knock-off lever 135 is adapted to be thrown upwardly into engagement with peripheral teeth 136 formed on the hub of the clutchmember &0, see Fig. 1, which is thus adapted to act as a knock-off wheel. The tilting action of the lever 135 is limited by a pin 138 projecting from the lever 128 through a hole 139 in its side.

The knock-off lever 135 is connected to a bentwire 1&0 which extends rearwardly and upwardly to a dro-pwire, not hereinshown, controlled from the running yarn, this connection being in accordance with the usual arrangement which provides that the breakof the strand will cause the drop-wire to fall to lift the knock-ofi' lever 135 to carry end into engagement with the teeth 136 on the hub of the clutch &0.

The manual release of the stopping-lever 120 and its connected lever 105 to start the operation of the machine is effected through the shifting of a starting-lever 1&5 having its hub pivoted on a stud 1&6 held in a boss 1&7 on the forward arm of the bracket 25,.

see Fig. 2. From its pivot 1&6 the lever 1&5 extends forwardly in a curved arm terminating in a handle 1&8 located at the front of the machine. A lug 1&9 projects from the side of the stopping-lever 120, see Fig. 3, to

engage under the bottom of the starting-lever 1&5 so that when the latter is swung downwardly it will depress the stopping-lever. Also pivoted on the stud 1&6 is an upwardly extending arm or lever 150 having an arcuate face 151 adapted to ride against the cenv x face of a quadrant 152 fastened to one of the arms 51 of the cradle 50. The arrangement of these parts is such that as the cradle 50 rises during the growth in the winding the end of the quadrant 152 will eventually ride off fro-m the end of the arm 150 when the package reaches a predetermined diameter, and this action effects the auto ic stopping of the machine through inetrumentalities as next described.

' The lever 150 has an arcuate slot & arranged concentric with its axis and engaged by a stud or pin 155 which projects from the side of the starting-lever 1&5 near its hub.

Through this connection the downward move-' ment of the starting-lever 1&5 acts to rock the lever 150 to the left as viewed in"Fi-g. 2. A spring 156 fastened to a lug 157 on the lever 150 and anchored at 158 to a lug on the stopping-lever 120 tends to rock the lever 150 in the opposite direction when it is released from the quadrant 1.52 and this movement acts through the connection at 1.5&155 to lift the starting-lever-1&5. The pin 155 has a further function, being adapted to engage with the under side of the knockofl lever 135 to lift the latter into position to engage with the teeth 136 on the clutch &0 when the lever 150 is moved tothe right under the action of its spring 156.

fully described in connection with the operation of the whole machine as next explained.

With the winding mechanism at rest the parts have the relationship as illustrated in Fig. 3 of the drawings. To prepare the machine for winding a wooden orfiber core T is mounted in the frame or cradle by inserting gudgeon-pins &8 into the bores at its ends and snapping them into the clips in the manner as previously explained.

The 5. method of functioning of these parts-is more 1 The strand y of-thread, yarn or other material to be woundis led off from its source of supply, not herein shown, carried through a suitable guide-eye arranged above the machine, but not illustrated, and then drawn down through the guide-eye 83, see Fig. 2, and thence passed through the notch 81 in the thread-guide button 80 with its end secured to the core T.

To start the winding the operator presses down on the handle 1&8 to rock the startinglever 1&5 on its pivot 1&6 and the engagement of its lug 155 with the slot 15& in the arm 150 will cause the latter to be rocked forwardly into the position shown in Fig. 2; This latter movement of the arm 150 places it in position to bear against the convex. face of the quadrant 152 as the frame 50 is swung down to bring the surface of the core T into contact with the periphery of the drive-roll 10'. As the lever 1&5 is pressed downwardly the engagement of its lower edge with the lug 1&9 on the stopping-lever 120, see Fig. 3, causes the latter to be depressed to carry the brake-shoe 121 away from the hub 35. on

the drive-roll 10. This movement of the stopping-lever 120 also removes the lug 125 on its side from proximity with theperiphery of the flange &1 on the clutch &0 whereby the ball &5 may be carried into engagement with interior of the rim &1 and is engaged-by the 1 the latter to rotate slowly. As the roll gains momentum the ball 45 is thrown radially outwardly so that as the aperture 47 comes into register with the pocket 46 it is projected into the aperture 47. It will be seen by reference to Figs. and 6 that the ball 45 engages through the aperture 47 sufficiently to take a secure hold on its edges, the gripping effect being augmented by centrifugal force as the speed of the drive-roll 10 is'accelerated. The drive-roll is thus started to rotate slowly which is of advantage when fine material is being wound and there is danger of breaking the strand by a too sudden pull.

As the starting-lever 145 forces the stopping-lever 120 downwardly its detent-lug 130 will slide across the detent-lever 128 until it engages beneath the shoulder 129 on the latter, see Fig. 2. After this engagement has been effected the spring 131 holds the lever 128 with the detents engaged whereby the stopping-lever 120 is locked in released position. At the first movement of the startinglever 145 its pin 155 is carried away from the under side of the knock-off lever 135 whereby the action of gravity will cause the latter to drop downwardly out of range of the teeth 136 on the hub of the clutch 40. The stopping-mechanism will therefore be held in inoperative position until the detentlever 128 is again released by the action of the knock-off lever.

It has been explained that when the stopping-lever 120 is brought downwardly its lug or stud 127 acts against the lug 126 on the lever 105 to draw the latter downwardly against the tension of its spring 107. This movement of the lever 105 withdraws its arm or extension 110 from beneath the coupling-pin 100, see Figs. 7 and 8, and as the pin is released the blade 119 on the spring element 117 holds the pin down until it engages with the slot 102 in the traverse-bar 15. This engagement is effected as the slot passes under the pin during the reciprocation of the traverse-bar which, as before mentioned, is continuous.

As the coupling-pin 100 becomes engaged with the slot 102 in the traverse-bar the latter imparts a rocking or oscillating motion to the traverse-arm 90 as indicated in Fig. 7. Since the arm 90 is connected with the threadguide arm .71 through the engagement of its leg 96 with the slot 97, the thread-guide will pm 155 rides against the knock-off lever be moved back and forth with the arm 90 between extremes of traverse corresponding to the len th of. the cop or package being wound. At the beginning of the winding the frame is in lowered position with the periphery of the core T bearing on the surface of the drive-roll 10; it being here noted that the stop-screw on the frame contacts with the side of the standard 76 to prevent the frame from droppingtoo far. As the strand y is traversed back and forth longitudinally of the core T it is deposited thereon in helical coils forming overlying layers which build up to form the cop or package C. As the mass of yarn on the core T increases in diameter it forces the core T upwardly while the frame 50 swings on its pivot 27 to accommodate the growth. It has been explained that the thread-guide arm 71 is held in position by the engagement of the cross-rod 87-with the slot 86 in the plate to maintain the guide-button 80 out of contact with the surface of the winding but in close proximity thereto. The coils of winding are therefore precisely and accurately deposited on the surface of the cop, but without any undue friction or rubbing action be tween the guide and the material.

As the frame or cradle 50 swings upwardly the connection of the guide-arm 71 therewith preserves this spaced relation between the guide and the surface of the winding and the swinging movement of the arm 71 on its pivot 75 effects a gradual shortening of the layers of winding. That is to say, as the thread-guide arm 71' swings upwardly around the arcuate edge of the leg 96 on the arm the effective leverage of the latter is shortened. In other words, the point of en gagement between the arm 90 and the slot 97 in the guide-arm 71 is shifted gradually toward the pivot 93 of the arm, so that the latter will impart a progressively shortened traverse to the guide. This gradual shortening of the traverse of the guide causes the cop to be Wound from core to periphery with layers of diminishing extent so that its ends build up in conical or tapered form as indicated in Fig.1. The purpose of this tapered formation at the ends of the package is to provide a more stable mass to prevent the yarn or. other material from sloughing off or sliding down on to the core.

As the frame 50 swings upwardly with the increasing diameter of the winding the quadrant 152 eventually rides off from the end of the arm and the latter is thereby released to be swung to the right, as viewed in Fig. 3, under the force of its spring 158 As the arm 150 is thus moved to the right its slot 154 acts on the pin 155 to lift the startinglever 145 and, concurrently therewith, the

.L() to raise it into position to be engaged by th teeth 136 on the clutch 40. The clutch l turns in the direction indicated by the arrow in Figs. 2 and 3 and the engagement of its teeth with the knock-off lever 135 kicks or forces the latter to the right to cause it to release the detent-lever 128 from the lug 130 on the stopping-lever 120. As the stoppinglever' 120 is released its spring 122 acts to swing it upwardly to engage the brake-shoe 121 with the hub on the drive-roll 10, and during this action the ball is struck by the finger 125 to project it out of the aperture 47. This action of the stopping-lever 120 thus causes the release of the clutch and prompt arrestment of the drive-roll 10 under the braking effect of the shoe 121..

As the brake-lever 120- swings upwardly it releases the lever whereby the latters spring 107 will rock it upwardly. As the lever 105 is swung upwardly its extension 110 is raised against the coupling-pin 100 to disengage the latter from the slot 102 in the traverse-bar 15. It has been explained that this disconnection of the pin 100 from the traverse-bar 15 can occur only as the threadguide reaches the approximate center of its throw since the pin must pass through the gap between the ends of the rods as shown in Fig. 8. The disengagement of the pin 100 disconnects the arm 90 from the traverse bar 15 and the reciprocation of the thread guide is thereby arrested at. a point inwardly from the ends on its traverse. It is here noted that the cooperative relationship of the levers and 105 is such that the thread-guide will be disconnected and brought to a stop slightly before the drive-roll stops rotating. This action is of advantage as avoiding strain on the strand being wound. The winding operation is thus arrested by stopping the reciprocation of the thread-guide 70 and the rotation of the drive-roll 10, but it is to be especially noted that the cop or package is not removed from contact with the drive-roll under this ac tion. This is a most important consideration since in winding silk, rayon and other relatively wiry materials there is danger that if the package be carried away from the driveroll the coils of winding will slip and slide out of place.

The stopping of the machine has been explained in connection with the completion of a full cop or package, but it is to be understood that the stopping mechanism is adapted for operation upon failure or breakage of the strand. For this purpose a drop-wire of usual arrangement is employed acting through the wire 140 to lift the knock-oil lever to cause its end to be engaged by theteeth 136 on the clutch 40. It is to be noted that this latter en agement causes the features of the invention, including the traverse-shortening means and the means for arresting the operation of the thread-guide at a point intermediate the ends of its traverse, have been explained in connection with the functioning of these parts. Further advantages of the improvement are set forth in the preamble of the specification and need not be dwelt uponhere. Sufiice it to state that the invention provides a machine capable of high speed operation with a consequent increasein the rate of production and one which is more convenient to operate to produce perfeet winding. The machine is particularly adapted for winding silk, rayon and similar fibrous strands, but the present improvements are also suitable for use on other types of winders. While the invention is herein shown by way of example as embodied in preferred form of construction, various modifications may be made in the design and arrangement of the parts of the machine without depar ting from the spirit or scope of the invention as expressed in the appended claims.

I claim:

1. In a winding machine, the combination of means for rotating a cop or package, meansfor traversing strand material on the package, reciprocating means therefor, means for coupling the traversing means to the reciproeating means, means for releasing the coupling means, and means acting to prevent re lease of the coupling means, said means being provided with a gap to allow the coupling means to be released when the traversing means is at a point intermediate the ends of traverse.

2. In a winding machine, the combination of means for rotating a cop or package, a guide for traversing strand material on the package, a reciprocating member, means for coupling the guide to be traversed by the reciprocating member, means for uncoupling the guide to arrest its traverse, and a guard extending parallel to the path of traverse to adapt it to normally prevent disconnection of the coupling means and provided with a gap to permit release of the coupling means when the guide is at a point removed from the ends of its traverse.

3. In a winding machine, the combination of means for rotating apackage, a guide for traversing strand material on the package, a reciprocating member, means for coupling the guide to the reciprocating member, means for releasing the coupling means to arrest the traverse of the guide, and a guard-rail extending parallel with the path of the reciprocating member and formed with a gap intermediate its ends through which the coupling means may pass whereby to cause arrestment of the guide at a point removed from the ends of its traverse.

4. In a winding machine, the combination of means for rotatively supporting a cop or package, means for rotating the package, a thread-guide for traversing strand material on the package, a reciprocating traverse-bar provided with a notch, coupling-means connected with the guide and engaging the notch to pass therethrough.

5. In a winding machine, the combination of means for rotatively supporting a cop or package, means for rotating the package, a thread-guide for traversing strand material on the package, said guide formed with a slot, a pivoted rocker-arm extending through said slot, a reciprocating traverse-bar, coupiing-means on the rocker-arm adapted to be connected with the traverse-bar to cause the arm to oscillate to reciprocate the guide, and means for disconnecting the coupling-means from the traverse-bar to arrest the reciprocation of the guide.

6. In a winding machine, the combination of means for rotatively supporting a cop or package, means for rotating the package, a reciprocating traverse-bar formed with a notch in its edge, a rocker-arm pivoted above the traverse-bar, a coupling-pin on the free end of said arm adapted to engage the notch in the traverse-bar, a thread-guide having opposite arms straddling the rocker-arm to adapt it to be reciprocated therefrom, and means for raising the coupling-pin out of the notch in the traverse-bar to arrest the reciprocation of the thread-guide.

7. In a winding machine, the combination of means for rotatively supporting a cop or package, means for rotating the package, a thread-guide mounted to reciprocate longitudinally of the package and pivoted to swing away from the axis thereof as the,

winding increases in diameter, and a rockerarm pivoted to oscillate parallel to the axis of the package and formed with an arcuate portion engaging the thread-guide to cause it to reciprocate the latter with a gradually diminishing extent of traverse as the guide moves away from the axis of the package and is thereby caused to slide on the arcuate portion of the arm.

8. In a winding machine, the combination of means for rotatively supporting a cop or package, means for rotating the package, a thread-guide mounted to reciprocate longitudinally of the package and pivoted to swing away from the axis thereof as the winding increases in diameter, and an oscillating arm formed with an arcuate portion arranged concentric with respect to the pivot of the on said frame for rotatively supporting a cop or package with its periphery in contact with the surface of the drive-roll, a recipro eating thread-guide for traversing strand material on the package, said guide pivoted to swing away from the axis of the package during the growth in the winding, and means on the frame operating on the guide to control its swinging movement to maintain the guide in close proximity with the surface of the package during the winding without contact therewith. I V

10. In a winding machine, the combination of a rotating drive-roll, a frame movable with respect to the drive-roll, means on said frame for supporting the cop or package to adapt it to be rotated by surface contact with the drive-roll, a thread-guide reciprocable longitudinally of the package and pivoted to swing away from the axis thereof during the growth in the winding, a cam on the guide, and means on the frame engaging the cam on the guide to control the swinging movement thereof whereby as the frame moves away from the drive-roll it acts to regulate the position of the guide to maintain the latter in close proximity to the surface of the package without contact therewith.

11. In a winding'machine, the combina tion of a rotating drive-roll, a frame movable with respect to the drive-roll, means on the frame for rotativeiy supporting a cop or package to adapt it to be driven by surface contact with the roll, a thread-guide reciprocable longitudinally of the package and pivoted to swing away from the axis thereof, means to reciprocate the guide, a trackway supported on the frame parallel with the path of reciprocation of the guide, and a cam on the guide engaging said trackway to maintain the guide in ciose proximity with the surface of the package during the winding without permitting it to contact there-V with.

12. In a winding machine, the combination of a rotating drive-roll. a frame pivoted to swing on an axis hi with the axis of the drive-roll, means for rotatively supporting a cop or package on the frame to adapt it to be driven by surface contact with the roll, a. thread-guide mounted to reciprocate longitudinally of the package and pivoted to swing on an axis parallel with the axis thereof, means to reciprocate the guide, a

Jun

rod carried by the frame in parallel relationship with the axis of the package, and means on the thread-guide having an arouate slot disposed eccentric with respect to the axis on which the guide pivots and ention of the thread-guide and then arresting the rotation of the drive-roll after the guide has been brought to rest.

14. In a winding machine, the combination of means for rotatively supporting a cop or package, a drive-roll for rotating the package, a drive-shaft, a clutch for connecting the drive-shaft to rotate the drive-roll, a thread-guide for traversing strand material on the package, a reciprocating member,

means for connecting the thread-guide to be reciprocated from said 'member, means for disconnecting the thread-guide from the reciprocating member to arrest the traverse'of the strand, and means fordisconnecting the clutch to arrest the rotation of the drive-roll after the thread-guide has been brought to rest.

15. In a winding machine, the combination of means for rotatively supporting a cop or package, a drive-roll for rotating the cop or package by surface contact therewith, a drive-shaft, a clutch for connecting the drive-roll with the drive-shaft, a threadguide for traversing strand material on the package, means for reciprocating the threadguide, means for arresting the reciprocation of the thread-guide, means for releasing the clutch from the drive-roll, and a brake acting on the drive-roll upon the release from the clutch. V

16. In a winding machine, the combination of means for rotatively supporting a cop or package, a drive-shaft, a clutch on said shaft, centritugally-operated means for connecting the clutch to rotate the drive-roll, a lever for releasing the clutch-connecting means, and a brake on said lever acting on the drive-r011 7c to arrest its rotation after the clutch-connecting means has been released.

In testimony whereof I hereunto aflix my signature.

CHARLES H. JONES.

package, a drive-roll for rotating the package, a thread-guide for traversing strand material on the package, a constantly reciprocating member, means for connecting the thread-guide to be reciprocated from said member, means for releasing said connecting means from the reciprocating member, and means operative upon the release of said connecting-means to arrest the rotation of the drive-roll.

17. In a winding machine, the combination of means for rotatively supporting a cop or package, a drive-roll for rotating the