US1326088A

US1326088A - Winding-machine

Info

Publication number: US1326088A
Authority: US
Publication date: 1919-12-23
Anticipated expiration: 1936-12-23

Description

E. F. PARKS.

WINDING MACHINE.

APPLICATION FILED APR. 1. um.

Patented Dec. 23,1919.

' 4 SHEETS-SHE EI- I.

ATTORNEY E. F. PARKS.

WINDING MACHINE.

APPLICATION men APR. 1. 1912.

1,326,088. Patented Dec. 23,1919.

4 SHEETS-SHEET 2-' HH v q ai k fi 21 E:

ATTQ NE s E.-F. PARKS.

WINDING MACHINE.

APPLICATION FILED APR. 1. 19.1.1.

Patented Dec. 23,1919.

4 SHEETS-SHEET 3 ATTORNEYS E. F. PARKS.

WINDING MACHINE.

APPLICATION FILED APR. 7. 1917.

1,326,088. Patented Dec. 23,1919.

4 SHEETS-SHEET 4.

N J, WW A'rrosgnays TED srAras rA'rnNT QFFIGE.

EDWARD r. rARKs, or PROVIDENCE, RHODE ISLAND, AssIGNOR T0 UNIVERSAL WINDING COMPANY, or BOSTON, MASSACHUSETTS, A CORPORATION OF MAssAoIIUsEr'rs.

WINDING-MACHINE.

Specification of Letters Iatent.

Patented Dec. 23, 1919.

Application filed April 7, 1917. Serial No. 160,513.

and consists of improvements in the startingand stopping-mechanism therefor. IMy improvements are directed partlcularly to that type of machine known as frictiondrive or drum-winders in which the cop or package is rotated through fictional contact of its surface with a driving-roll or drum, The object of the invention is to provide a quick-acting, positively-operated means for removing the cop from driving contact with thedr-ive-roll, and for releasing the yarn from the traversing thread guide when it is desired to stop the winding. Other objects of the improvement are to provide means for controlling the movement of the winding-spindle o-r mandrel as it recedes from the drive-roll during the growth-of the package; to apply a braking force to the mandrel to insure quick a restmen't of its rotation; to hold the mandrel in its raised position upon the stopping I of the machine; and to otherwise facilitate and render more convenient the whole operation of the machine.

The manner and means for carrying out the improvements are fully explained in the following specification, illustrated by the accompanying drawings, in which like reference characters designate like parts. In .the drawings Figure 1 is a general, plan View of my improved winding machine;

Fig.2, an enlarged, side view of the same, part sectional on the line X.X of Fig. 1, and showing the endcover of the machine-frame or casing removed to dlsclose the traversecam. and its driving-connections; I r

Fig. 3, an enlarged, detail vlew of the drive-roll, winding-mandrel and threadguide in endelevation, showing the stopping-mechanism for the mandrel and the yarn-releasing means for the thread-guide;

Fig. l, a sectional, detail view of the spindle dogging-dev ce; I I

Fig, 5, a detail View of the yarn-releasing means or thread-bail shown in relation to V the thread-guide; and

I I Fig. 6, a plan view of the tension-devices and correlated end-stop mechanism of the machine. l

My improvements are herein shown as applied to a machine of the same general construction as that described and illustrated in my copending application, Serial NO. 105,425, filed June 23, 1916. Referring particularly to Figs. 1 and 2, the essential elements of the winding-mechanism are mounted on a box-like casing or frame F and comprise the winding1nandrel B, the driveroll D, the thread-guide Gr and the traversecam C. Journaled in bearings at the sides of the frame F is a horizontal shaft S on which the cam G is fixedly mounted and at one end whereof is a friction drive-wheel W. Mounted in a movable bracket or standard E at the rear of the machine is a stud shaft h, carrying a belt-pulley H at one end, and at its opposite end is a friction-disk K arranged with its face engaging the periphery of the cam-driving wheel W. The pulley H is connected by a belt to the main drive-shaft of the machine, usually arranged below, but not here shown, and generally extending the whole length of a frame or bed upon which a plurality of units or winding-heads are supported. As the pulley H is rotated from the main drive-shaft its shaft h rotates the disk K, which, in turn, drives the wheel V through frictional contact therewith. By adjusting the position of the bracket E to shift the disk K across the rim of the wheel WV the speed-ratio between the drive shaft and cam C may be regulated in the usual manner as well known in the art. The speed-changing device for the cam 01S operated through the movement 'of the winding-mandrel B away from the drive-roll D as the winding increases in diameter to alter the speed of traverse of the thread-guide whereby to regulate the laying of the yarn-coils in accordance with the change in speed of rotation of the cop.

naled in the side-bearings d, d, see Figs. 1 and 2. Referring particularly to Fig. 1, the drive-roll shaft D carries a pulley P at one end which is belted to a pulley on the main drive-shaft of the machine, or, if preferred, the W0 shafts might be connected by gearing. Below the roll D are two parallel, horizontal rods 1", 1" extending across the interior of the frame F and supported at their ends in the bearings f, 7, see Fig. 2. Mounted on the upper rod 1" is a traverseslide L which carries the thread-guide G. Preferably the slide L is constructed in the form of a tubular bushing or quill to which is secured a sheetmetal member L having the guide G made integral therewith. The member L comprises two spaced arms Z, Z surrounding the bushing L, as shown in Fig. 5, and the connecting portion between the arms is extended upwardly in the curved guide-member Gr. Reaching out from the side of the member L is another arm Z bent into a hook at its end, see Fig. 2, to adapt it to inclosc the lower guide-rod r. Projecting from the bottom. of the member L is a pin or stud 0 on which is journaled a roll 0 adapted to engage with the helical groove 0 in the periphery of the cam C in accordance with the usual arrangement. The guide-arm G is curved to, adapt it to lie close to the periphery of the drive-roll D, as shown in Fig. 2, and at its top is an enlargement g bent into a vertical plane and formed with a thread-slot 9, see Fig. 5. The top of the guide G is thus arranged to 'lie close to the point of contact of the cop with the drive-roll D and is maintained in this relation by the arm Z which embraces the rod 1". As the cam C is rotated the engagement of its groove 0 with the roll 0 will cause the slide L to be reciprocated along the rods 1', r and the guide G will thus be traversed longitudinally of the axis of the winding-mandrel B.

As shown in Fig. 1, the winding-mandrel B is constructed in the form of a tube or cylinder, generally made from wood, and having a cross-slot b at one end. The bore 6 of the mandrel or cop-tube B is adapted to receive the ends of two opposite live spindles V, V journaled in bearings t, t at the ends of the sidearms T, T of a swinging frame U. The right-hand spindle V carries a collar or flange e on the face of which is a spline or key 4) adapted to engage the cross-slot Z) in the end of the tube B to connect it rotatively therewith. The spindle V also carries a brakewheel or disk M through which the rotation of the tube or mandrel B is arrested in the manner and for the purpose as later described.

The frame U 1n which the mandrel-supporting spindles V, V are journaled is of substantially rectangular shape with its arms '1, T connected by the cross-members 2 and 3. At its rearward end the frame U is pivoted on a cross-rod it held in bearings f, f on the frame F. The bearing for the left-hand mandrel-spindle V is formed at the end of an auxiliary arm or hand-lever J pivoted at y to the side of the main arm T. A spring j serves to maintain the arm J normally in the position illustrated in Fig. l to hold the spindle V in engagement with the bore of the tube B, but when it is desired to remove the mandrel the arm may be swung to one side against the action of the spring.

Pivoted on. the rod 20 which supports the frame U atthe rear of the main frame F is a brake-arm or lever N which also serves as the main instrumentality for raising the winding-mandrel B away from the driveroll D to arrest its rotation. The lever N extends along the inner side of the arm T of the frame U as shown in Fig. 1, and at its outer end is formed with an arched portion N. t the extremity of the arch N is a brake-shoe n adapted to engage with the periphery of the brake-dislr M on the spindle V, see Figs. and 3. Straddling the sides of the portion N of the lever N is an arm Q which is pivoted on a pin g driven through the lever. Pivoted on a stud 2 projecting from the side of the arm T of the frame U is a finger-lever Z having an arm .2 reaching out toward the front of the machine and overlying a finger-hold extension Z on the arm T. The opposite arm 4 of the lever Z is of triangular shape and is pivotally connected to the lower end of the arm Q by a stud or pin 5. A relatively strong spring I is secured to the lower end of the lever Z and anchored at i to the extension Z on the arm T. The tendency of the spring I is to rock the lever Z in the direction opposite to that indicated by the arrow :0, Fig. 3, to raise the frame U in relation to the lever N to carry the brake-disk M against the shoe or, the arm Q acting as a toggle-link for this purpose, as more fully explained hereinafter. The lever Z also serves a means for controlling the braking-device manually and by pressing its extension z' toward the finger-piece Z on the arm T it may be rocked to move the brakedisk M away from the brake-shoe n in the manne and for the purpose as later explaincd. As shown in Fig. 8, the arm a of the lever Z is formed with a substantially sector-like portion 6 having detent-notches 7 and 8 in its edge adapted to be engaged by the pointed end 9 of a push-rod 10 to hold it in different positions, whereby to regulate the coaction between the brakelever N and the frame U. The rod 10 is mounted to slide in a lug 11 projecting from the side of the arm of the frame U and at its rearward end is bent at right-angles pered groove 31 of an arcuate-shaped track 1 and hooked through the end of one arm 12 of a bell-crank-lever 13. The lever 13 1s pivoted on a stud 14: screwed into an extension 011 the top of the brake-arm N and its opposite arm 15 is pivotally connected to the end of a link or slide-bar 16 by means of the screw 17. a

The opposite end of the side-bar 16 is supported on a pin 18 driven into the side of the cover of the main frame F and projecting through a substantially V-shaped cam-slot 19 in the bar. The forward'end of the bar 16 is formed with a fork 20 having a slot 21 through which it is connected to operate the yarn-releasing bail for the V thread-guide in a manner as later explained. The bar 16 also carrles a knock-0E lever 22 at its outer end, preferably constructed of sheet-metal in channel form to adapt its sides to receiv a pivot-pin 23 extending through the bar. At its rearward end the bottom section of the channel is cut away at 24:, see Fig. 3, to provide a cross-bar 25 which is adapted to be engaged by the teeth of a ratchet-wheel 26 attached to the hub of the cam-shaft drive-wheel WV. Two fingers or prongs 22 project upwardly from this end ofth lever 22 and straddle the bar 16 to guide the lever in its movement in relation thereto. The knock-01f lever 22 is rocked to engage its end 25 with the ratchetwheel 26 through the connection of its forward end with the end-stop or drop-wire 7 devices of the'machine to be later described. f Suffice it for the present to state that when it is carried into engagement with the ratchet-wheel 26 it will be moved thereby in the direction indicated by the arrow m, Fig. 3, to slide the bar 16 in the same direction. This action serves to rock the lever 13 to withdraw the detent-rod 10 from engagement with the notches in the sector 6 of the lever Z whereby to allow the latter to act in a manner as later explained.

The bell-crank-lever 13 is controlled by a spring 27 to maintain the detent-rod 10 normally engaged with the notch 7 in the lever Z during the operation of the machine, asillustrated in Fig. 2. One end of the spring 27 is hooked through a hole in the arm 12 of the lever 13 and its opposite end issimilarly secured to the end of a lever 28. The lever 28 is fast on a rod 29 pivoted in bearings projecting from the under side of the brake-lever N, see Fig. 3. The inner end of the rod 29 is bent at right-angles to its pivot portion, see Fig. 1, and extends in the crooked arm 30. As shown in Figs. 3 and 4 the opposite sides of the arm 30 are milled of? to provide a wedge-shaped crosssection which isadapted to engage the taor quadrant 32. The quadrant 32 is secured to the mam frame of the machlne at 33, and 34, see Fig. 2, and is formed concentric with the axis of the rod u on which the frame U and arm N are pivoted. Therefore, as these two members swing upwardly the arm 30 of the rod 29 will slide freely in the groove 31 of the track 32, but on the contrary, the downward movement of the frame and lover will be resisted by the binding action ofthe arm in the groove. This dogging effect results from the tendcncy of the arm 30 to rock under the action of the spring-pressed lever 28 in accordance with a familiar principle as usually employed in the winding-machine art. The lever 28 isformed with a toe-portion 35 extending forwardly from the rod 29 into position beneath the lower end of the lever Z. The end of the toe 35 is beveled off at 37 to adapt it to be engaged by a latch-member 38 carried on the pivot-pin 5 of th lever Z, and also by a rounded lug 39 on the lower end of the lever, see Figs. 2 and 3. The latch 38 is preferably constructed of sheet-metal with two cars 40 straddling the end of the lower arm a of the lever Z and encircling the pin 5 on either side thereof. Connecting the ears i0 is a strip-like piece 11 folded on itself at 42 and then bent out at right-angles inthe finger 43 which bears against the side of the lever Z to act as a stop, see Fig. 3. The upper portion of the strip-piece :1 extends in an angularly-bent arm 4%- which serves as a counterweight to maintain the latch normally in the position shown in Figs. 2 and 3 with its stop 43 against the lever Z. lVith th parts in the position as shown in Fig. 3, when the arm a of the lever Z is pressed downwardly to rock its arm 4 in th direction indicated by the arrow w, the lower end of the latch 38 will wipe across the beveled end of the toe 35 of the lever 28. The latch 38 is thus caused to act as a wedge to depress the toe-portion 35 of the lever 28 whereby to turn its rod 29 to rock its dog-arm 30 downwardly. This action releases the dog 30 from its binding engagement in the groove 31 of the quadrant 32, but as soon as the latch 38 rides over the bevel 37 on the toe 35 the lever 28 is free to move again under the action of the spring 27. During the first part of the movement of the hand-lever Z the upper notch 8 comes into engagement with the detent-rod 10, but at this juncture the latch 38 will not have been carried far enough to engage the too 35 of the lever 28. Before the machine is started, however, the lever Z is pressed downwardly to bring the lower notch 7 into engagement with the detent or locking-rod 10 to adjust the parts for operation. "When this latter operation takes place the lever Z is moved far enough to carry the latch 38 acrossthe toe 35 of the lever 28 and the dog 30 will thereby be released from the quadrant In this manner the dog 30 is released to bring the winding-mandrel B or the package thereon down against the surface of the drive'roll D, and after the latch 38 swings into the position shown in Fig. 2, the dog is freed again to allow it to be reengaged with its quadrant 32. The purpose of this arrangement is explained more fully in connection with the method of operation of the complete machine.

Referring now to Figs. 1, 2 and 6, at the front of the machine is a shelf-like frame or apron A on which are mounted several sets of tension-devices Y. These latter may be of any preferred type, and as here shown comprise three pairs of tension-plates or grids 15 arranged in opposed relation to adapt them to press against the yarns fl/ drawing between their alternating bars. Extending across the frame A at the rear of the tension-devices is a rod 6, see Figs. 2 and 6, pivoted in bearings 47 and 4:8 and bent into U-shape at one end to form the extension 49, arranged parallel with its main portion 16. The free ends of the rods16 and 19 are eonnectedby an arm 50 which completes its rectangular form and provides a loop-like frame adapted to rock in its bearings 17 and 418. Pivotally 'lOlllltGCl on the rear rod d6 are a se'ies of breakage levers or drop-

wires

51, 51, arranged in alinement with the several tension-devices Y, see Fig. 6. Each drop-wire 51 is formed at its end with a helical coil 52 surrounding the rod -16 to support it pivotally thereon. From the end of the coil 52 the wire extends outwardly through a slotted opening 53 in the frame A which acts to restrain it from lateral movement in relation to its appropriate tension-device Y. At their forward ends the drop-wires 51 are bent at rightangles to form the parallel, horizontal crossbars 54:, 54, across which the yarns draw from the tension-devices Y in leading to the thread-guide G. As shown in Fig. 2 the yarns y lead outwardly from the tensiondevices to form a relative sharp bend as they draw across the bars 5 1, 55, and thence lead back over a guide-rod 56 to the slot 5] in the thread-guide G. The guide-rod 56 extends horizontally across the front of the frame F and is supported at one end by its bent portion 57 held in a bearing 58 by the set-screw 59. In some cases the yarns may lead up from the tension-devices Y to rolls or guide-pulleys, supported above the ma chine, and thence back in under the guiderod 56 to the thread-guide G. This arrangement, however, being familiar to those skilled in the art, is not herein illustrated.

Referring still to Figs. 2 and 6, during the operation of the machine the drop-wires 51 are supported by the yarns y in raised position bearing against the forward crossbar &9 of the double frame std 19. The end arm 50 of said frame is formed with an ex tension 60 which bears against an adjusting screw 61 held in the front of the frame A, see Fig. 2. A relatively light coiled spring 62 is hooked through a hole 63 in the arm 50 and anchored at its lower end to a staple 6 1 held in a lug 65 on the frame A. The spring 62 holds the extension 60 of the arm 50 normally bearing against the adjusting-screw 61, but allows for a slight lifting of the frame-rod 16 under abnormal resistance to the draft of the yarn which tends to swing the drop-wires upwardly. The mean positions of the drop-wires 51 may be regulated as required for different conditions of the winding by adjusting the screw 61 to, alter the angle of the frame some. Extending horizontallv across the frame A beneath the drop-wires 51 is a wire-bail 66 having its ends bent at right angles to its main portion and coiled around the wire-16 at 67 and 68. Projectingrearwardly from the end coil 68 is an arm 69 bent outwardly at 70 and formed with a hook 7 lat its. extremity, see Fig. 2. Sus pended from the hook 71 is a link? 2 having its lower .end 73 hooked through the side of the knock-01f lever 22. It will be understood that the weight of any one of the drop-wires '51, upon its release by the yarn 'y, is sufficient to tilt the bail 66 downwardly to raise its arm 69 and thereby lift the forward end of the knock-off lever 22. This action causes the rearward end of the lever 22 to be depressed to bring itscross-bar 25 into the range of the teeth of the ratchet 26 as before explained.

Extending across the top of the frame F in front of the drive-roll D is a sheet-metal cover or guard 7 5 which incloses the threadguide G and protects it from dust and lint or contact with the operators hands. The cover 75 is supported on a flange or ledge 76 on the tension-frame A and secured thereto by the screws 77. At its top are sideears 78, 78 for supporting a horizontal crossrod 7 9 on which is hinged the thread-bail or lifter 80, see Fig. 5. The bail 80 is preferably constructed in the form of a" flat, sheet-metal plate having its inner edge folded over to present a smooth surface to the yarn. An ear 81 is turned down from its side and into this is hooked a wire link 82, see Fig. 3. The link 82 is connected by a turnbuckle 83 at its lower end to an ex tension 84 hooked into the arm 85 of a lever 86. The lever 86 is pivoted on the cross-rod T, which extends across the in terior of the frame F, as previously described, and is formed with a forwardly extending arm 87. which reaches through an opening 88 in the front of the frame E. On its arm- 85. is a cylindrical stud or projection 89 which engages the slot 21 in the forked end 20 of the slide-rod 16., When the rod 16 is slid rearwardly, through the action of the ratchet 26 on the knock-0E lever 22, its cam-slot 19 engaging the pin 18 will cause its forward end to be raised slightly. This action causes its fork 20 to rock the lever 86 whereby to tilt the threadbail 8O upwardly through its connection by the flange 42 engaged with its cross-slot b,see

Fig. 1, and the other spindle V is then inserted in its bore 6 at the opposite end by manipulating the lever J. The yarns y are then led up from their source of supply, nothere shown, but generally arranged below, and inserted between the bars of the tensiongrids Y. As shown in Figs. 1 and 6 the machine is fitted with three separate tensiondevices to adapt it for doubling or winding the yarns in multiple but a greater or less number of tensions could be used if desired. From the tension-devices Y the yarns are led up across the bars 54: and 55 of the drop-wires 51, and thence back over the guide-rod 56 and across the .top of the thread-bail 80, see Fig. 2. It will be understood that the drive-roll D and cam C are driven continuously from the main driveshaft of the machine which receives its motion from any suitable source of power, not here shown. The winding-mandrel B, however, is held out of contact with the driveroll D, until the winding is to be started, with the brake-disk M bearing against the brake-shoe n as illustrated in Fig. 3. This relation of the mechanism is maintained by the action of the lever Z under the influence of its spring' I when the detent-rod 10 is released from the notch 7 in its sector 6. The spring I tends to swing the lever Z in the direction opposite to that indicated by the arrow 00, Fig. 3, and the arm or link Q is thus caused to hold the forward end of the frame U raised with the mandrel B clear of the drive-roll D. It will be understood, of course, that the brake-arm N remains in fixed position in relation to the drive-roll D due to the binding action of its dog 30 in the groove 31 of the quadrant 32 which prevents it from moving downwardly.

Before starting the machine to wind the cop or package the operator places the fingers under the extension Z- on the framearm T and presses down on the end 2' of the lever Z with his thumb. This causesthe lever Z to be rocked in the direction indicated by the arrow 00, thereby bringing the notch 8 in its sector 6 into alinement with the pointed end 9 of the detent-rod 10. The spring 27 will then act on the lever 13 to slide the rod 10 to engage its end with the notch 8 and meanwhile the frame U will have been lowered slightly in relation to the brake-arm N so that the disk M is clear of the brake-shoe n. The release of the spindle brake-disk M from the shoe 7;. allows the mandrel B to be turned on its bearings so that the ends of the yarns y can be secured thereto more conveniently and wound on its surface to straighten their course from the tensions. This first movement of the lever Z also brings the latch 38 on its lower arm 4 into position adjacent the beveled end 37 of the toe 35 of the lever 28. Now, after the mandrel B has been rotated by hand to draw the yarns y taut, its surface is brought down into contact with the drive-roll D to start the winding in the following described manner: The operator presses on the end a of the lever Z to depress it still farther and this causes its sector 6 to be rocked to bring the lower notch 7 into position to be engaged by the detent-rod 10. This last movement of the lever Z will wipe the end 42 of the latch 38 across the bevel 37 on the toe 35 of the lever 28 to rock the latter to release the dog 30. lVith the dog 30 removed from binding engagement with the sector 32 the frame U can then be lowered to carry the cop-tube B against the drive-roll D. As soon as the mandrel B has thus been brought into driving contact with the roll D the hand-lever Z may be released and it will remain locked in the position shown in Fig. 2 by the engagement of the detent-rod 10 with its notch 7 With the lever Z thus held from movement under the tension of its spring I, it will act through the arm Q to lock the frame U in fixed relation to the brake-lever N, with the brake-shoe a free from the disk M, and the two members are thus adapted to swing upwardly on their pivot-rod u as one part. Downward movement of the frame U and arm N, however, will be prevented by the action of the dog 30 on the fixed sector 32.

With the parts of the machine adjusted to the position as just described and shown in Fig. 2, the drive-roll D will rotate the mandrel B through frictional contact of their peripheral surfaces and the cam C will reciprocate the thread-guide G back and forth longitudinally thereof. Referring to Fig. 3, it will be observed that when the windingmandrel B is maintained away from the drive-roll to arrest its rotation, the stoppingmechanism of the machine is in such position that the thread-bail 80 will be raised on its pivot to hold the yarns 1 above and out of range of the thread-guide Gr. When, however, the lever Z is operated to allow for placing the mandrel B in contact with the drive-roll D the thread-bail 80 will assume its horizontal position as shown in Fig. 2, the

operation of this part of the mechanism being more fully explalned later. Referring now to Fig. 5, it is to be noted that the upper portion g of the thread-guide G 1S shaped somewhat like an arrow-hea d with its sides sloping outwardly from the slot g. As before stated, the thread-guide G is reciprocated continuously and hence as the winding-mandrel B is brought down against the roll D, after the thread-bail has been depressed, the guide will ride in under the yarns y and pick them up to seat them in the slot g. In this way the gu1de G is threaded aiitomatically as soon as the mandrel l3 starts-to rotate under the action of the driveroll-D.

As the machine continues to operate in the manner above described, the yarn will be drive-roll D while the frame U swings on its pivot a to allow for this recession. he

bra'kedever N being lockedin relation tothe frame U is therefore caused to move with it andmeanwhile-thedog 30 acts on the quadrant 32 to prevent a return movement of the frame. Through this arrangement the frame U and the wmdmg-niandrel B are prevented from vibrating or umpmg up and'down fron'i the effect of irregularities or inequalities on the surface of the winding, andtherefore a smoother actionof the parts 'is secured tending to improvethe character of the package. It is also called to atten tion-tha-twith the parts set for the winding operation, as-shown in Flg. 2, the axis of the pin '17 which connects the slide-bar 1 6 with the lever 13 is coincident with the axis of the rod u on which the :frame U and brakelever N pivot. Therefore, as the frame U andlever l swingupwardly with the growth of'the cop, there will be notendency to displace the lever 13 to disturb the operative 'relation of the rod 10 and bar 16.

The method of operation of the automatic stopping-mechanism of the machlne is as follows: lVhenany one of the yarns 2 becomes broken or its supply exhausted it will allow the outer end of its-respective drop- .wire-til to fall an'dthis action will cause the ball-66, Figs. 3 and 6, to be tilted downwardly onits pivot l6. The arm 69 of the bail 66 will thereby be raised to lift the outer end of theknock-ofi' lever 2'2, whereby to depress itsrearward end and carry the crossbar 25 into position to be engaged by the-teeth of the ratchet 26. The ratchet 26 is rotated continuously with the cam-driving wheel 1V and during its engagement with the end of the-lever 22 itwill act toslide the bar 16 in the direction indicated by the arrow e,

cause it to act as a. toggle connection to raise the frame U in relation to the brake-lever N, see also Fig. 2. As before explained the arm N 1s held from downward movement by the dog 30 and hence the fran ie U must be raised relatively thereto, it being also called to notice that as the lever Z is rocked to efiectthis action the latch 38 will have no operative effect as it passes across the too 35 of the lever 28. That is to say, as the lower arm 4 of the lever Z swings to the left, asviewed in Fig. 3, the latch 38 will be free to tilt upwardly so that it will not bear forcibly against the toe 35. Forthis reason the lever 28 will still remain active under the effect of its spring 27 and hence the dog 30 will not be released from binding engagement with the quad ant 32.

As the frame U is raisedto lift the surface of the cop away from the drive-roll D the brake-disk M will be carried against the shoe n and the momentum ofthe cop will thereby be checked to quickly arrest its rotation. llileanwhile, as "the slide-bar 16 is slidin the direction indicated by the arrow at, Fig. 3, to effect this ,releaseof the stop pingmeans as above explained, its forward end willgbe raised slightly as its slot 19 rides along the fixed pin 13. Throughthisaction the lever S6 engaged by the forked end of the bar l6 will be rocked to raisejthe link 82 connected therewith, and in this manner the thread-bail 80 is tilted upwardly as shown in Fig. 3. As the bail 80 thus raised against the yarns y it will liftthem' out from the slot g in the thread-guide and hence the guide as it continues to re ciprocate willhave no effect to traverse the yarns. In this manner the guide is pre vented from abrading oiucuttingthe.yarns while thecop is at rest and they may also be manipulated more conveniently in piec' ing up the ends. It should perhaps be eX- plainedthat the purpose of the lug 39 onthe lowerend of the lever Z is to provide ferreleasingthedog 30 .after the parts have been locked in operative relation. That is to say, if the lever .25 is firstpressedmlown to an extentsuflicient to lock it with the detent-rod 10 engaging its notch 7 before the cop is'lorought into contact with the drive- -roll D, byrocking it to a slightly greater eX- tent its lug 39 will engage'the bevel 37 on the toe 35 of the lever 28 to release the dog 30. In other words, it not absolutely till) necessary to make sure that the cop is brought against the drive-roll when the latch 38 acts on the lever 28. This arrangement provides for a more convenient manual control of the dog 30 in whatever position the parts may be set and also allows for the movement of the frame U even after the machine has been started to operate. It is also called to attention that after the knock-off lever 22 has been operated on by the ratchet 26 it will be carried to a position with its lower web-portion above the edge of the ratchet. For this reason the teeth of the ratchet will simply ride against the under side of the lever to hold its rearward end raised with the cross-bar 25 out of their .pingdevices provide for a quick, positive arrest of the winding upon the breakage or exhaustion of the yarn, and if occasion requires, the stoppingmay be effected manually by simply lifting up on the end of the knock-off lever 22. The cop is brought to rest almost instantly by the action of the brake-mechanism, and furthermore the action of the thread-guide on the yarn is immediately discontinued to prevent injury of the material and to provide for more convenient piecing up. In addition .the starting-means is so arranged as to allow for release of the brake to permit the cop to be manually rotated to find a broken end, or to take up the slack after the end has been repaired, and in this way the operation of the whole machine is facilitated and rendered more convenient.

Various modifications mlght be made 1n the form and construction of the parts of my improved device without departing from the spirit or scope of the invention; therefore, without limiting myself to the exact embodiment shown and described, What I ,supporting the cop in contact with the drivearm to withdraw the cop from contact with l roll, an armpivoted on the axis of the frame and movable therewith as the axis of the cop recedes from the drive-roll during the growth in the winding, means to connect the frame and arm to move together, means todog the arm toprevent the frame from the drive-roll.

2. In a winding machine, the combination with the traversing thread-guide and rotating drive-roll, of a pivoted frame for supporting the cop in contact with the driveroll while allowing its axis to recede therefrom with the growth in the winding, a stop-member pivoted on the same axis with the frame to adapt it to move therewith, detent-means for connecting the frame and stop-member to move together, means to re lease the detent-means, and means acting between the stop-member and frame to dis place the latter in relation to the former to remove the cop from contact with the driveroll to arrest its rotation.

3. In a winding machine, the combination with the rotating drive-roll and reciprocating thread-guide, of a winding-mandrel on which the cop is wound through contact with the drive-roll, a frame for supporting the mandrel to allow it to recede from the.

drive-roll with the growth in the winding, a stop-member movable from and with said frame, means to connect said frame and stop-member to move together, means to dog the stop-member during its movement with the frame to prevent retrogressive movement thereof, and means to move the frame in relation to the stop-member while the latter is held by its dogging-means to withdraw the cop from contact with the drive-roll.

4:. In a winding machine, the combination with the reciprocating thread-guide and rotating drive-roll, of a swinging frame for supporting the cop with its surface in con tact with the drive-roll, an arm adapted to swing with the cop-supporting frame, means connecting the arm and frame to move together as the axis of the cop recedes from the drive-roll during the increase in diameter of the winding, means to prevent the arm from moving in the opposite direction toward the drive-roll, and stopping-means for moving the frame in relation to the arm to withdraw the cop from contact with the drive-roll to arrest. its rotation upon the breaking or exhaustion of the yarn being wound.

5. In a winding machine, the combination with the reciprocating thread-guide and rotating drive-roll, of a movable frame for supporting the cop in contact with the driveroll while allowing its axis to recede therefrom with the growth in the winding, a stopmember movable with the frame, an arm pivoted on the stopmember, a lever pivoted on the frame and connected to the arm, detent-means for locking the lever to maintain the stop-member and frame in fixed rela tion, and means to operate the lever upon the release of the detent-means to move the frame in relation to the stop-member to withdraw the cop from contact with the drive-roll.

6. In a winding machine, the combination with the reciprocating thread-guide and rotating drive-roll, of a movable frame for supporting the cop in contact with the driveroll while allowing its axis to recede therefrom, a stop-1nember movable with the frame, an arm pivoted on the stop-member,

a lever pivoted on the frame and connected with the arm, a spring to rock the lever, detent-means to lock the lever to hold the frame and stop-member in fixed 'relation the cop from contact with the drive-roll.

7. In a winding machine, the combination wlth the reciprocating thread-guide and rotating drive-roll, of a pivoted frame for supporting the cop to adapt it to be driven from the roll, a stop-member pivoted on the axis of the frame to move therewith, an arm pivoted on said stop-member, a hand-lover pivoted on the frame and connected with the arm on the stop-member, a spring for rocking the hand-lever, a detent-mcmber engageable with the hand-lever to restrain it from rocking to hold the stop-member and frame in fixed relation, and stopping'devices actuated by the failure of the supply-yarns to release the detent-means to allow the hand-lever to rock to displace the frame in relation to the stop-member to withdraw the cop from contact with the drive-roll.

. 8. In a winding machine, the combination with the reciprocating thread-guide and rotating drive-roll, of a winding-mandrel on which the cop is wound through contact with the driveroll, a brake-disk rotatable with the mandrel, a frame for supporting the mandrel to adapt it to reccde from the drive-roll with the growth in the winding, a brake-lever movable with the frame and carrying a brake-shoe, an arm pivoted to the brake-lever, a hand-lever pivoted on the frame and connected with the arm on the brake-lever, a spring-to rock said hand-lever, a detent to maintain said hand-lever locked against the action of the spring, and stopping-devices to release the detent to allow the hand-lever to rock to move the frame in relation to the brake-lever to withdraw the cop from contact with the drive-roll and to concurrently carry the brake-disk into engagement with the brake-shoe.

9. In a winding machine, the combination with the reciprocating thread-guide and rotating drive-roll, of a pivoted frame for supporting the cop in contact with the drive-roll, a stop-member pivoted on the axis of the frame to adapt it to move there with as the axis of the cop recedes from the drive-roll with the growth in the winding, dogging-means on th stop-member to prevent itfrom moving in the opposite direction toward the drive-roll, a stoppinglever pivoted on the cop-frame, an arm connecting said stopping-lever with the stop-member, a spring to rock the stopping-lever to raise the cop-frame in relation to the stop-memher to lift the cop off from the drive-roll, a detent to prevent the action of the stopping lever, and automatically-operated means for releasing the detent upon the breakage or exhaustion of the yarn being wound.

10. In a winding machine, the combination with the reciprocating thread-guide and rotating drive-roll, of a frame for supporting the cop in contact with the driveroll while allowing its axis to reeede therefrom with the growth in the winding, astop-member movable with the frame away from the drive-roll, dogging-means for preventing the stop-member from moving to ward the drive-roll, a stopping-lever, means for ope ating the stopping-lever to mov the frame in relation to the stop-member to withdraw the cop from contact with the drive-roll, detent-means for maintaining the stopping-lever inactive during the winding, and meansoperative to release the doggingmeans to allow the cop to be placed in contact with the drive-roll when the stoppinglever is operated manually to engageit with its detent-means.

11. In a winding machine, the combination with the reciprocating thread-guide and rotating drive-roll, of a swinging frame for supporting the cop in contact with the driveroll while allowing its axisto recede therefrom, a stop-member connected to move with the frame as the cop increases indiameter, dogging-means for preventing the stopmember and frame from movin'g toward the drive-roll, a stopping-lever connecting the frame and stop-member, a spring for rocking the stopping-lever to displace the frame in relation to the stop-member to withdraw the cop from contact with the drive-roll, detent-means to hold the stoppinglever normally inactive, and means operated when the stopping-lever is moved manually against the action of its spring to release the dogging-means to allow the cop to be carried into contact with the drive-roll.

12. In a winding machine, the combination with the reciprocating thread-guide and rotating drive-roll, of a windingmandrel on which the cop is wound through contact with the drive-roll, a brake-disk rota table with the mandrel, a frame for supporting the mandrel to adapt it to recede from the drive-roll, abrake-arm connected to move with the frame as the cop increases in diameter, dogging-means connected with the hrake-arm' to prevent the frame from moving toward the drive-roll, a stoppinglcver connected with the frame and brakearm, a spring to operate the stopping-lever to move the frame in relation to the brake arm to withdraw the cop from contact with and rotating 7 frame pivoted to swing away from the drive-- the drive-roll and carry the brake-disk into engagement with the brake-arm, detentmeans for locking the stopping-lever against movement by its spring, and means operative to release the dogging-means for the brake-arm and frame when the stoppinglever is carried into engagement with its detent-means.

13. In a windingfmachine, the combination with the reciprocating thread-guide and rotating drive-roll, of a cop-supporting frame pivoted toswing away from the driveroll, a rotatable winding-mandrel carried by said frame, a brake-disk rotatable with the mandrel, a brakearm pivoted'to swing with the cop-frame, dogging-means acting on the brake-arm to prevent the cop-frame from swinging toward the drive-rolLa stoppinglever connecting th v cop-frame and brakearm to move together, means to operate the stopping-lever toyraise the cop-frame in relation to the brake-arm to lift the cop ofi from the drive-roll and carry the brake-disk into contact with the brake-arm, detentmeans for withholding the stopping-lever from action, and means whereby the stopping-lever may be engaged with the detentmeans in one position to release the brakedisk from the brake-arm and in another position to release the dogging-means to allow the cop to be placed in contact with the drive-roll.

14. In a winding machine, the combination with the reciprocating thread-guide drive-roll, of a cop-supporting roll, a rotatable winding-mandrel carried by said frame, a brake-disk rotatable with the mandrel, a brake-arm pivoted to swing with the cop-frame as the mandrel recedes from the drive-roll during the growth of the cop, dogging-means for controlling the movement of the brake-arm to prevent the cop-frame from swinging toward the driveroll, a stopping-lever pivoted on the'copframe and formed with a notched sector, means connecting the stopping-lever to move the cop-frame in relation to the brake-arm, a spring to operate the stopping-lever to remove the cop from contact with the driveroll and carry th brake-disk into engage ment with the brake-arm, a detent-member engageable with one notch in the stoppinglever to hold the brake-disk released from the brake-arm, and means operated by the stopping-lever to release the dogging-means for the brake-lever when itsother notch is carried into engagement with the detentmember.

15. In a winding machine, the combination with the reciprocating thread-guide and rotating drive-roll, of a frame adapted to swing away fromthe drive-roll, a winding mandrel carried by said frame, a brake-disk rotatable with the mandrel, a brake-arm movable with the cop-frame away from the drive-roll, a dog carried by said brake-arm, a fixed quadrant engaged by the dog to prevent movement of the brake-arm and copframe toward the drive-roll, a lever for tion with the reciprocating thread-guide and rotating drive-roll, of a movable frame for supporting the cop in contact with the drive-roll while allowing its axis to recede therefrom, a stop-member movable with the frame away from the drive-roll, a

stopping-lever carried by the frame and connected with the stop-member, means to operate the stopping-lever to displace the frame with respect to the stop-member to withdraw the cop from contact with the drive-roll, a detentanember for maintaining the stopping-lever normally inactive, a knock-oh" lever for releasing the detentmember, a ratchet for operating the knockoff lever, anddrop-wires controlled by the yarns being wound and releasable thereby to cause the knock-oft lever to engage with the ratchet.

17. In a winding machine, the combination with the reciprocating thread-guide and rotating drive-roll, of a swinging frame for supporting the cop in contact with the drive-roll, an arm mounted to swing with theframe as the cop increases in diameter, a stopping-lever for displacing the frame in relation to the arm to lift the cop away from the drive-roll, a detent-rod slidably mounted on the frame to engage the stopping-lever to withhold it from action, a bellcrank-lever pivoted on the frame and connected to slide the detent-rod, a slide-bar connected to operate the bell-cranl lever, and means controlled by the yarn being wound todmove the slide-bar to release the detentro 18. In a winding machine, the combination with the reciprocating thread-guide and rotating drive-roll, of a movable frame for supporting the cop in contact with the drive-roll, an arm movable with the frame as the cop increases in diameter, stoppingmeans for displacing the frame with respect to the arm to withdraw the cop from contact with the drive-roll, a detent-member for ,maintaining the stopping-means inactive, a

bell-crank-lever for withdrawing the detentmember, a slide-bar for operating the bellcrank-lever, a ratchet-wheel, a knock-off lever pivoted on the slide-bar to adapt it to engage With the ratchet-Wheel, and means for moving the knock-off lever into engagement wlth the ratchet upon the failure of the yarn being Wound.

19. In a Winding machine, the combination With a continuously reciprocating thread-guide for traversing the yarn on the cop, of a thread-bail adapted to be shifted in position in relation to the thread-guide to lift the yarns out therefrom, a rotating drive-roll, a swinging frame for supporting the cop to be rotated from the drive-roll, stopping-means for moving the frame to Withdraw the cop from contact with the drive-roll, detentaneans to maintain the stopping-means normally inoperative, a longitudinally-slidable bar for releasing'the detent-means, a rotatable ratchet-Wheel for sliding the bar, a cam for raising the bar during its sliding movement, and means opera-ted from the raising of the bar to shift the thread-bail as the cop is Withdrawn from contact with the drive-roll.

20. In a Windinginachine, the combination With a continuously reciprooated thread-guide for traversing the yarn on the cop, of a movable thread-bail arranged adjacent the path of traverse of the guide, a continuously rotated drive-r011, a frame for supporting the cop to be rotated from the drive-roll, stopping-means to move the frame to Withdraw the cop from contact with the drive-roll, detent-means to hold the stopping-means normally inoperative, a longitudinally-slidable bar for releasing the detent-means, means to slide the bar, means to raise one end of the bar laterally during its sliding movement and a link connected with the bar to raise the thread-bail to lift the yarn out of the thread-guide.

In testimony whereof I afiix my signature.

EDWARD F. PARKS.