US2635321A - Winding apparatus - Google Patents

Description

April 21, 1953 E. K. BAUER EI'AL WINDING APPARATUS 2 SHEET SSHEET 1 Filed Nov. 23, 1949 IN V EN TOR-S.

R u w K n 2 Mm mm April 21, 1953 E. K. BAUER ET AL 2,635,321

WINDING APPARATUS Filed Nov. 23, 1949 v 2 SHEETS-SHEET 2 IN VEN TORS.

ERNEST K. BAUER PAUL E. HILL ATTORNEX? of the windings to compact the same.

Patented Apr. 21, 1953 I UNITED STATES PATENT OFFICE WINDING APPARATUS Ernest K. Bauer and Paul E. Hill, Meadville, Pa., assignors to American Viscose Corporation, Wilmington, DeL, a corporation of Delaware Application November 23, 1949, Serial No. 129,148

18 Claims.

This invention relates to winding machines of the type which comprise a pressure member such as a roll which bears against the surface More particularly the invention relates to the positive separation of the pressure member or roll from the suriace of the windings when the member carrying the windings is decelerated or stopped. The positive separation is synchronized with the brake or braking action applied to the member carrying the windings.

In standard machines for winding yarn, fabrics, films, and the like on a carrying member, such as a cylindrical or conical core, it is usually customary to employ a pressure member such as a roll or roller to compact and smooth out remains constant and consequently the material being wound is rubbed and damaged by the pressure roll.

In cases where both members are'driven, i. e.,

the carrying and pressure members, complicated .devices must be employed to synchronize the revolutions of the same since the peripheral speed of the carrying member and the surface speed of the pressure 'roll must remain the same. Complicated devices are likewise needed in such a case to synchronize the braking action of the two members in order to avoid damage to the windings due to friction. V 7

In the winding operation irregularities in the windings very often occur due to eccentricities, bulges, or bumps that are formed due to, for ex- ,ample, overly thick portions in the material being wound. Winding devices of the prior art have the disadvantage that if a slight distortion at some part of the-periphery of the winding occurs, such as a bulge, the pressure element is moved outwardly from the axis of the winding at the position of the bulge and then returns toward the axis of the winding at it leaves the bulge causing a bumping of the pressuremember on the surface of the windings each time thebulge is contacted. -.During high speed winding, the fluctuations of the pressureyelernents that result from hitting one or more of such bulges about the periphery, tends to cause chattering or vibration and an unsatisfactory winding results, i. e. one not having a round cross section. There is also the danger that the bouncing or vibration of the pressure member or roll on the surface of the windings will damage the same.

Accordingly, it is an object of the present invention to overcome the aforementioned difiiculties and provide a simple means for preventing damage to the windings during the braking of the member carrying the same.

Another object of the present invention is to provide a simple and eflicient means for removing the pressure member from the carrying member surface during the braking of the latter.

Another object of the invention is to provide an apparatus for producing a perfectly round section winding containing windings having a minimum of abraded portions.

Other advantages and objects of the present invention will be obvious from the drawing and description thereof hereinafter.

In the drawing, which is intended to be illustrative and not-limitative,

Figure l is a side elevation of one embodiment of the invention,

Figure 2 is a side elevation of another embodiment of the invention,

Figure 3 is a plan view of the snubbing mechanism, and

Figure 4 is a diagrammatic view of an electrical system that may be employed with the embodiments shown in Figures 1 and 2.

The objects of this invention are in general accomplished by providing a rotatably mounted pressure roll which rests against the surface of the positively driven winding roll. This pressure roll may be made of aluminum, phenolite, rubber, neoprene, and the like, or its outer surface may be covered with a layer of one of these materials. The winding roll is provided with a brake or, if desired, both thewinding and pressure rolls may be provided with brakes.

The pressure roll supporting assembly is movably mounted such that the pressure roll may position when a new winding is started.

The pressure roll is movably mounted on the movable assembly so as to be capable of being removed from the surface of the winding roll independently of the pressure roll assembly by positive removing means such as a torque motor and cable, solenoids, and the like. In this case, however, the pressure roll is returned to the winding roll surface when releasing "the positive removing means. The positive pressii-re roll removing means and the winding roll braking means are synchronized so that the pressure roll is removed from the winding roll surfacesubstantially before the deceleration is --cdriiplete'd and preferably before the latter begins to 'de'-'- celerate.

The apparatus may be adjusted so that the i pressure roll may be retracted or removed any reasonable distance such as inch, prior to braking the winding roll.

For a more detailed description of the invention, reference made to Figure lof 'the dravv- -i'ng which depicts one embodimentof the invention as it is applied in winding yarnon'a warp beam. It should be understood that while the invention is described with-respect to itsapplication toa warp ,beamer, this is merely intended to "be illustrative and in 1 no sense "limitative.

The yarn I coming from the creel -(not shown) passes over a guide A, under the hook-like portion of the dropwirfe-switch 4, through openings in an eye-board 2, -between--the guides B and C which :serve to converge the various yarns in a plane, then through a-comb -3, over a guide or ;mea.s u-ri-r 1g*rol1 4a, and then wound onthe beam 5 "beam is driven by means of the belt -6 attached to the power or driving motor 1.

Resting against the surface of the beam is a pressure roll 8, shown in the raised position, the dotted lines representingth'elowered or normal position. V The pressure roll-is rotatably "mounted ;on shaft 8a which is Supported-at either end of the pressure roll by lever arms pivotally rnounted on shaft-9. A l ink-or--arm1l isrigidly attached or keyed to-shaft 9 and extends downwardly away fronth'e ipressure roll. -Extending outwardly from ink H and forming an integral part thereof, is a sectorgear Ha. {The other end of link l I ispivo tallyrnounted on the transverse shaft [2 attached to the frame of the -machine. Also locked to the shaft .L-by means -of;the-=-key I3 is "an "upwardly extending arm or -;l-ink l4. Links l l and H! are fixedrel'ative to each-other aiidfi'f desired, 'niay be 'one integral linlgorar-m. It is, of course, to be understood'that if desired the same fiienia'msm inay be duplicated on the 'dthe'r'sid'eof the "machine. w m

Toggle;hnk' l5 "and [5a c'onnect the arms 10 "and f4, Eiz'tinding between the center joint 16 dfthe"tog'gle lihliage "a'ndthe arin l 0 ajtension "s'p'ririg'fi whichjwhentheopressu-re-roll is in conjt'at with "the surface 56: theb'eahi, miss the toggle l nkage the dotted line position [51) againstthetoggleliiikstops [8 (positioned on the sides of afi'xislfl a In' th'is normal or 'rest position SDTaQai'nstFthe"togglelink stops I 8, the center pint "l6 positioned slightly oif center or below a linedrawn between pivotal points 19 and 2!] on arms menu l-ll respectively. Thus, when the;pressure roll and--arm40 move in acounterclockwise direction, due to the building'up of the warp on the-beam arm l4 wi11 move in the :same direction since the tog-gle linkage, in -its nor r'rial oif-eenteripositiom forms a rigid-connection' be- :tweenarms l 0 and M.

The purpose of -the tog'gle-l inkage l is to swing airmi l 0 m a counter-clockwise-kiirectin While at n'oid supporting frame 22 fastened to the arm l4, and into the solenoid 23. When the solenoid- '23 ise'nergized, the rOd 2| is pulled upward carmachine.

mechanism is now in the position shown in :Eig ure 1. When the solenoid is deenergizedpthe tension spring [-7 returns the toggle linkage to its normal positionand the-pressure roll is returned in contact with the .lya'rn surface on the beam;

This position is shown by the dotted lines in i -l The solenoid energized whenever a break occurs in the yarns coming-from the cre'el or an extreme loss "or ti-ision'in theyafn occurs, 'or'th'e brakes are applied to the beam. Each ai n coming from the creel passes over "adr'opwireswitch, one of "which is'sho n "at 4. 'The yam noldsthe drofiwi're-fswitch'ih such and rthait the circuit to the brakes and solenoid 1's v n and th nrcmt to "the beam riving motor 'Tis 'clos'e'd. Whena yarn breaks the switch 4 drops and "opens "the bir'cui't "to motor 1 'thus "step ing the "driving means to the beam. "The 'cirliitto the solenoid '23 -and torque motor '24 'is cl'os'edz" The solenoid-is'en'ergized immediately and 1 ts the pressure roll on the 'beam before the torque motor can brakethe beam. "The torque motor '24 and "'sole'n'oid 23 are easily synchronized to operate 'i'n this fashion.

When the "torque motor 24 is started, it rot'a't'es a "gear sector "25 in "a "counter-clockwise "di- "rc'tioh. The gear sector 25 is secured to or an integral part or the 1ever '16 I-Divo't'e'd iat Tl. The rever ze ispivot'ally'coni'iected to'the liiikiBg the opposite'end 'of which issecuredto theshaft 29 rotatably mounted on the frame 'of the jbeanier. 'Atorieendof th'e snart an on which the i 5 rotates i'S bfake drum 3| encircling "nut "3 8 extends "through "the brake "shoe extensi'ons '3 Sand and through "a""cdmpr es"sibh spring in positioned between 'tlienut 38 'and brakeshtie '-'extension "40. The compression spring tends to hold the brake shoes tightly about "the braking drum, i. e., i'n srakin'gposidoh. I

Positioned between th'ebrake sho'e extensions as an 40 is 9,. eamike preader q'z '*ri'gid1y' fa'stened to fshaft 29. In Figure 1, "the apparatus iS in "the 'blfiklh'gffis'itiQ-h. the windingg eperation' the sm eader qrwould' bje in a" position ap roximately "i'nfa 'clockwise direction' fro'm jtha't show'n, which, of course, "would spread the brake shoes and release the brake oifthe "beam.

This normal or non -braking position is attained by ineans of the tension spring "4 3 extending between the 'gear sector 'z's and the beamer frame.

The armature -rying the 'togglefil-inkage up past its center posi -tion'thus swingingarm I0 in a counter-clockwise direction lifting lp'ressure roll 8 ofi the yarn sur-,' face of the beam. If desired, a similar solenoid setup maybe employed on the other side of the; When the toggle linkage moves upward, the tension spring I! is extended. The

When, as previously recited, the torque motor 24 rotates thegear sector 25 in a counter-clockwise direction until the sector touches the fixed stop 25a, the link, 28 is moved upwardly thus rotating the shaft 29 and the spreader 42 thereon in a counter-clockwise direction to the position shown. The brake shoes are thus pushed together tightly about the brake drum 3i due to the action of the. compression spring 4|. Prior to this braking action, the solenoid has been energized lifting the pressure roll from the yarn surface before the beam has started to slow down. All this action takes place in a relatively short period of time thus stopping the beam quickly and efliciently when a break in the yarn occurs without anyidanger of damageto the yarn on thegbeam. a Irrespective of the pressure roll retracting and beam braking mechanisms, the lever 10 supporting the pressure roll 8 is rotated in a counterclockwise direction due to the building up of the warp yarn on the beam. In addition to the lever 10, the arm l4 and sector gear II are also rotated in a counter-clockwise direction since the toggle linkage when in position Ib rigidly connects arms l0 and I4 and arm l4 and sector gear II are locked to shaft 9 and thus fixed with respect to each other. Thus the entire structure connected to the pressure roll swings to the left as viewed in Figure l.

When the arm l4 swings to the left, the bar 44 ;pivotally mounted on the end of arm [4 at 45, is also moved to the left through the snubber mechanism 46. The snubber, described hereinafter, will allow the bar 44 to move to the left but not to the right. Therefore, as the yarn is wound on the beam, the pressure roll support will rotate counter-clockwise moving the bar 44 to the left, and should a high spot or bulge come in contact with the pressure roll moving it farther to the left than the remaining yarn surface on the beam ordinarily would, the snubber 4B prevents bar 44 from moving back to the right thus in turn preventing the pressure roll 8 from returning to make contact with the normal yarn surface on the beam. The pressure roll will not again come in contact with the entire yarn surface on the beam until the overall surface of the beam has ,reached a radius equal to that of the high spotg; Thus an even and perfectly round section beam is assured.

When a beam has been finished and removed fromthe beamer, it is of course necessary to returnthe pressure roll to the surface of the new unwound beam. This is accomplished by releasing the snubber, the mechanism for which is described hereinafter, and rotating the sector gear H in a clockwise direction by means of the pinion 41 fastened to the fixed transverse shaft 48. It is to be understood that a like pinion and sector gear may be positioned on the opposite side of the beamer in connection with a duplicate mechanism attached to the opposite end of the pressure roll 8 from that viewed in Figure 1.

' Attached to the beamer frame by means of bearing- like pieces 49 and 50 is a rotatable shaft 5i attached to the lower end of which is a bevel gear 52 enmeshed with bevel gear 53 fixed on .shaft 48. At the other end of shaft 5| is a hand wheel 54. The shaft 5| is attached to the opposite side of the beamer frame from that shown 'i-in Figure 1., When the hand wheel 54 is rotated ime, counter-clockwise direction,the shaft 48 and 'pinion' 141. are likewise rotated in a counterclockwise direction, due tothe action of the bevel gears 52 and 53, thus moving the pressure roll supporting structure to the right. In this way, the pressure roll is returned to its starting position ready for the winding of a new warp beam. If desired, the shaft 5| may be rotated by means of a motor or the like, instead of manually. For a description of the snubber 46 and the snubber releasing means, reference should be made to Figures 1 and 3. The bars 44 extend through the snubber housings 55 which are pivotally mounted on conical pins 55 fastened to supporting members 51, which in turn are mounted on the angle iron 58 mountedtransversely in the beamer frame. The snubber housings are pivotally mounted to allow for the slight up and downward movement imparted to bar 44 as a result of the rotation of arms [4 and H about the pivotal point l2. v

Pivotally mounted in the center of the snubber housing 55 on the shaft 59 is a one-way friction device or block 60, the underside of which is made to conform to the shape of bar .44 on which it rests. The bar 44 may be any shapebut that illustrated is preferred in which the sides BI and 62 slope inwardly and upwardly. The block is held down tightly against the bar 44 by means of the compression spring 69 which is adjustably mounted on the plate 64 extending transverse of the snubber housing and fastened to the sides thereof. The tension on the spring is adjusted by means of the screw 65 and lock nut 65. When the bar 44 moves to the left, as viewedin Figure 1, the block 60 is swung about the pivot 59 in a clockwise direction against the force of the spring 63, thus permitting the bar 44 to pass through the snubber housing. When an attempt is made to move the bar 44 to the right, the force is against the pivot 59 thus binding the block or snubber 60 and the bar 44 and preventing any movement of the latter through the snubber housing. Hence, a snubber releasing mechanism i necessary in order to return the pressure roll to its starting position.

The snubber releasing mechanism comprises a steel cable 61 fastened to one side of the beamer frame by means of a tension spring 68 and extending transverse of the beamer over the snubber housings and over a pulley 69 fastened to the opposite side of the beamer frame. The cable then extends down under pulley Ill, along the base of the beamer and under pulley H, up over pulley 12, and down to a foot pedal 13 where it is fastened. Extending outwardly from the non-pivotal ends of the snubbers or blocks 50 are pins 14. These pins extend out over the wedge-shaped member 15 fastened to the cable 61. The wedge-shaped members 15 slope downwardly from right to left as viewed in Figure 3 and are positioned between the pins 14 and the upper surfaces 16 and ll of the snubber housing sides. When the foot pedal 13 is pressed down the cable moves from right to left, as viewed in Figure 3, against the action of spring 68. The wedges 15 passing under the pins [4 raise the same thus rotating the snubbers about the pivots 59 and removing them from contact with the. bars 44 permitting the movement of the latter in either direction. When the pressure on the foot pedal is released, the tension spring 68 restores the cable to its starting position thus removing the Wedges 15 from contact with the pins 14. In order to limit the movement of the cable and protect the spring, metal stopsla and were? fastened tome-cable on eitherside of 'the snubberhou'sing.

In Figure 2- them is shown another embodimentof: the invention wherein the pressure roll: 8 i's' movedawayfrom the yarn surface on the beam by m'eans'of a-cable 8U- fastened at one end tothe eente'r'ioint N- of the toggle lihkage and extending down around the link H and fastened to a pulleyfil on the torque motor 2t. When the pressure roll is against the surface of the beam, the" toggle linkage is inthe dotted-line position 82 with its center slightly above the straight line betweenpivotal points" :9 and on arms 14 and 0 respectively, and resting against-the toggle stopstg'iand 8'4 on arms l4 and Hi. If a yarn l breal z-s -orl the manual switch isclosed, the torque motor ill-isactuated pulling the cable 80 which inturn pulls the toggle linkage down through the=- center position to the position shown thus raising the arm It andthe' pressure roll 8 from the yarn surface on the beam. The toggle linkage acts against'the compression spring whioh fastened tothe arm Hi The purpose of the compression spring is to return the pressure roll to thesurfac'e of theyarn' on the beam when the" circuit to the torque motor 24 is broken. There may be asimilar set up on the otherside or the'beamer' with both cables connected to the onetorque motor. The: gears on the torque motor are so chosen that the pressure roll lifts off thebeam beforethe brake'is applied to the beam. I -s-i'nce't-he braking mechanism, snubber, snubber release, etc. are the same in this embodiment as that shown in Figure l', a description of the same" is not necessary here and is not shown in Figure 2fo'r the'purposeof simplicity.

Figure 4 is adiagrammatic view of an electrical systemv that may beemployed in connection with the embodiment shown in Figures l and 2. As shown; the circuit to the beam drive 1 95' onmotor '24 through a manual switch H33,

thenthrough a holding coil Hi2 about thelower end of drop switch 9%. The upper half ofth'e lower end of drop switch 96, below the contact bar" I'M, is made of non-magnetic'materialso that in order to" center the drop switch in coil H32 when his energizedtheswitch 90 must be'raised thus'cl'osing thel'ine-Qt by means of contact me. The circuit is completed through line 89 when the switch 9'0is energized.

" Theso1enoi'ds'23 are connected in parallel with the torquemotor 24 by means of lines 96 and 97 running offfrom lines 92 andfl respectively. 7

At Q-Bthere' is a holding" coil circuit which is in series or in parallel with a holding coil" of a conventional starting system (not shownl for the beam drive motor i. As shown, when thedrive motor has been started, the coil 98' is energized liftingthe' drop-switch 99 closing the line Its running from the power supply to the holding 'coil et'a -of drop-switch 9H. However, the coil 911a is not energized when the drive motor '1 is running' because the other line ml between the power supply and the-coil etaiisbroken by're'ason o'f the drop-swit'ch-i being raised by the yarn I Line I01 is connected' in series with a number of 81 drop-switches .4'; there: being one; for eachiyain or'thread being wound on the-beam.

When one of the yarns I breaks, the.- dropswitch 4: falls: 'clbsingthe circuit to the: holding. coil eta which is energized lifting the dropswit'olr- 90. This breaks the circuit to. the beam drive-'n otor 1: stopping the same. The: holding coil; 98 is then deenergized as a result allowing thedropgswitch 99' to break line H10" and this line will 'not again be closed until. the holding coil 98 is again-energized: by restarting the drive motor T. When" the switch 90 iszraise'd; contact. bar lot closes the circuit to the solenoids 23 energiz 'ihgtl're same andliiting the pressure rOII fL'OI'fi the yarn surface on the bea'mo At the same-time, the torque motor 2 4' isstarted applying the brakes to the beam. The circuit to the-solenoids and torque motoris kept'close d by reasonot the holding coil m2- being energized holding contact i04 main line 94-. This-is necessarysince holding coil 90a: has become d'eenergizedby'r-e'ason of the break inline I00 due to the deenergization oi holding coil 98 which occurred when the circuit tothe beam driving motor '1 was broken.

The torque motor will continue running and the solenoidsremain energized until the circuit is broken. -'I-hi'sisac'complished by means of the manualswitch H132 The torque motorstops releasing'the brakes on the beam; and the-solenoids are deenergized allowing the pressure roll to-return to the yarn surface; Switch I 03 is then closed but the torquemotor cannot startsincei the" drop-switch Bilhasopened line 9'4 and closed line when the holding coil F0 2 was deenergi'zed The driving motor I will not function" until restarted bythesta-rti'ng system (not-shown) which was thrown out when the motor stopped-L The electrical systememployedwith the embodiment shown in Figure 2' may be the same-as that shownin Figure 4 with the exception that the solenoids 23'- are eliminated 'I-he'present invention is applicable to thewindmg of any type yarn on a warp beam, such as cotton; wool, silk, rayon, cellulose acetate yarn; nylon, vinyon; and the like-or-to winding of fabrics, paper, sheet-material, films such as-oellophane, celluloseethers andester's; and the like; etc. I

By means of the presentinvention; a round cross-section beam or Winding may lee-obtained and the same stopped during'wind'in'g' thereof without danger of damageto the wound material due to friction between the pressure roll and winding roll while the latter being stoppedi Further, auniform pressure on the windings is assured throughout the entire winding operation; It is tobe; understood that changes and variations may be made without departing from the spirit and scope o'f the invention as definedinthe 'app'endedclaimsa We claim:

1-. An apparatus for winding comprising a re tat'able drivenwarp beam for receiving: aqwin'd' ing thereabout, l'evermeans mounted pivotall'y about an axis outside the periphery of the warp beam; a rotatable pressure roll adjacent said :beam; pressure roll supporting means; said supporting means beingpivota'll'y mounted onthe lever meansto'gglelihkage connect-ing the' pressurerollsupporting means to the lever means and 'normally holding them in fixed relative position, means forpreventing relative movement the" pressureroll and beam toward each other during displacementot the lever means? and pressure roll assembly as aunitabout'said pivotal axis-by virtue of increasing diameter of winding on the rotatable driven beam, braking means connected to the rotatable driven beam, and means responsive to the actuation of the braking means for actuating the toggle linkage means to swing the pressure roll mounting relative to the lever means to remove the pressure roll from ,the winding.

' 2. An apparatus as defined in claim 1 wherein the means for preventing relative movement of the pressure roll and beam toward each other during displacement by virtue of increasing diameter of winding on the rotatable driven beam is a one way snubbing means.

3. An apparatus as defined in claim 1 wherein the means responsive to the actuation of the braking means for actuating the toggle linkage comprises a solenoid connected in parallel with the braking means. 4. An apparatus as defined in claim 1 wherein the means responsive to the actuation of the braking means for actuating the toggle linkage comprises a cable connecting the braking means and the toggle linkage.

5. An apparatus for winding comprising a rotatable element for receiving a winding thereabout, a rotatable pressure roll adjacent said element, means for movably mounting the roll, oneway snubbing means for preventing relative movement of the roll and element toward each other during displacement by virtue of increasing diameter of winding on the rotatable element comprising a rod and friction means, said rod being connected to the roll mounting means and making sliding contact with the friction means, braking means connected to the rotatable element, retracting means for moving the pressure roll to and from the surface of the winding on the element, and means responsive to the actuation of the braking means for actuating the retracting means to remove the roll from' the winding.

6, An apparatus for winding comprising a rotatable element for receiving a winding thereabout, a rotatable pressure roll adjacent said element, means for mounting the roll pivotally about an axis outside its periphery, one way snubbing means for preventing relative movement of the roll and element toward each other during displacement by virtue of increasing diameter of winding on the rotatable element comprising a rod and friction means, said rod being connected to the roll mounting means and makingsliding contact with, the friction means, braking means connected to the rotatable element, retracting means for moving the pressure roll to and from the surface of the winding on the element, and means responsive to the actuation of the braking means for actuating the retracting means to remove the roll from the winding.

'7. An apparatus for winding comprising a rotatable driven warp beam for receiving a winding thereabout, a rotatable pressure roll adjacent said beam, means for movably mounting the pressure roll, one way snubbing means for preventing relative movement of the pressure roll and beam toward each other during displacement by virtue of increasing diameter of winding on the rotatable driven beam comprising a rod and friction means, said rod being connected to the roll mounting means and making sliding contact with the friction means, braking means connected to the rotatable driven beam, retracting means for moving the pressure roll to and from the surface of the winding on the beam, and means responsive to the actuation of the braking means for actuating the retracting means to remove the pressure roll from the winding.

8. An apparatus for winding comprising a rotatable driven warp beam for receiving a winding thereabout, a rotatable pressure roll adjacent said beam, means for mounting the pressure roll pivotally about an axis outside its periphery, one way snubbing means for preventing relative movement of the pressure roll and beam toward each other during displacement by virtue of increasing diameter of winding on the rotatable driven beam comprising a rod and friction means, said rod being connected to the roll mounting means and making sliding contact with the friction means, braking means connected to the rotatable driven beam, retracting means for moving the pressure roll to and from the surface of the winding on the beam, and means responsive to the actuation of the braking means for actuating the retracting means to remove the pressure roll from the winding.

9. An apparatus for winding comprising a rotatable element for receiving a winding thereabout, a rotatable pressure roll adjacent said element, lever means mounted pivotally. about an axis outside the periphery of the element, means for mounting the pressure roll pivotally on the lever means, one way snubbing means for preventing relative movement of the pressure roll and rotatable element toward each other during displacement by virtue of increasing diameter of winding on the element comprising a rod and friction means, said rod being c onnected to the roll mounting means and making sliding contact with the friction means, braking means connected to the rotatable element, retracting means for moving the pressure roll to and from the surface of the winding on the element, and means responsive to the actuation of the braking means for actuating the retracting means to remove the pressure roll from the winding.

10. An apparatus for winding comprising a rotatable driven warp beam for receiving a winding thereabout, a rotatable pressure roll adjacent said beam, lever means mounted pivotally about,

placement 'by virtue of increasing diameter of winding on the beam comprising a rod and friction means,-said rod being connected to the roll mounting means and making sliding contact with the friction means, braking means connected to the rotatable driven beam, retracting means for moving the pressure roll to and from the surface of the winding on the beam, and means responsive to the actuation of the braking means for actuating the retracting means to remove the pressure roll from the winding.

11. An apparatus as defined in claim 2 wherein the one way snubbing means comprises a rod and friction means, said rod being connected to the lever means and making sliding contact with the friction means.

12. An apparatus as defined in claim 2 wherein the one way snubbing means comprises a housing, a pivotally mounted block in said housing, a rod slidably mounted in the housing and in frictional engagement with the block, said rod aeeaea 11 being. connected to the lever means, and; resilient means for forcing, the block intoirictional engagement with the rodl 13.. An apparatus for winding comprising arotatable driven warp beam for receivin a. wind.- ing thereabout, lever. means mounted pivotally about anaxis outside the periphery of the warp beam, a rotatable. pressure roll adjacent said beam, means for mounting thepressureroll pivotally onthe lever means, toggle, linkageconnecting the pressure. roll, mounting and lever means and normally holding. them. in fixedrelative position, one. Way snubbing; means. for preventing rela.- tive movement of the pressure, roll and beam to.- xvard each other during displacementof the lever means, and, pressure. roll. assembly a a. unit. about said. pivotal. axis. by virtue, of. increasing. diameter of. winding on the, rotatable. driven beam brakmeans connected to, the rotatable driven beam, and solenoid. means, connected in. parallel with the. braking, means, said solenoid means being, responsive to: the actuation of the braking means for actuating the toggle.- linkage. means." to swing the. pressure roll mounting relative to the lever means. to remove the pressure roll. from the. winding.

14. An. apparatus as defined in claim 13 wherein the one, way snubbing means, comprises a, rod and friction-meansv said. rod. being connected to the. lever means. and. making. sliding contact. with the friction means.

15; Aniapparatusfor winding comprising. a ro tatable; driven warp. beam for receiving. a winding thereabout, lever means, mounted pivotally about an axis. outside. the. eriphery of. the warp beam, a rotatable pressure roll adjacent said beam, means. for mounting. the pressure roll pivotally on-the. lever means, toggle li-nkageconnecting the pressure roll. mounting, and: lever means. and. nor-- mally holding. themin. fixed. relative position, one. way snubbing means. for preventing relative. movement of the pressure, roll and beam toward, each. other during. displacementv of. the lever means and pressure roll. assembly as. a unit about said pivotal axis by virtue of increasing diameter of. Winding. on the rotatable driven.beam, braking means connected. to. the. rotatable driven b.eam,, and cable. means connected betwen the. braking; means and the. toggle. linkage, said cable means.- being responsive. to, the. actuation. of. the braking means, for actuating, the toggle linkagemeans to.

swing the pressure. roll mounting. relative to, the;

lever means to. remove. the pressureroll from the winding.

16.. An apparatus. asdefinedrin claim 15 where.

in the. one. way snubbing means; comprises-a red.

and. friction means, said rod beingconnected to the; lever means and making slidingcontactwith the friction means. i

17. An. apparatus. for. winding. comprising. a. mtatable. element for receiving, a winding there.- about, pivotally mounted. lever means, a rotatable pressure roll adjacent said element, pressure roll supporting means said supporting meansabeing pivotally mounted on. the. lever means, toggle linkage: connecting th pressure roll supporting meanstothe lever. means and. normally holding them in. fixed relative position means for. prev venting relative. movement, of the pressure roll andelementtoward each; other during displacement. of the lever means. and pressure roll. assem: bly. as unit. about the: axis of. thepivotally mounted lever means by virtue of. increasing. diameter of winding on the rotatable element brak-w ing. means, connected to the. rotatable element, and means responsive to the actuation of the braking means-for actuating the. toggle linkageto. swing, the. pressure roll mounting, relative to. the lever means to remove the, pressure: roll fro the winding.

18. An apparatus for winding comprising; aimtatable element'for receiving, a; winding there: about, apivotally mounted lever; arotatablepressure roll. adjacent. said element,,=a. second.v lever for supporting: the pressure roll and pivotally con nected tothe first. lever toggle linkage connect: ing the first. lever with the second lever and normally holding,v them in fixed. relativ position, means'for preventing relative, movement. of the pressure. roll and element toward each other; dur-'-- ing displacement. of the. first. lever and. pressure roll by virtue of increasing diameter of. winding on. the rotatable; element, braking.v means con-y nected. to. the rotatable element.,, and. means responsive: tov the. actuation, of, the. braking. means. for: actuating. the toggle. linkage to. swing thepres. sure roll relative to the first lever to remove: the pressureroll.fromtheiwindingh v ERNEST K BAUER.

PAUL. HILLl References Cited'in the fil'e ofthis patent UNITED STATES PATENTS Number Name- Data;

2,363,988. Peterson Nov... 28 ,vv rose 2384-5274 Lam-bachi Sept... 11, 1-945:

FOREIGN PATENTS V Number Country Date .1

Great Britain h. Sept. 21;. 1 93s.-

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