US2237994A - Reeling device - Google Patents

Description

April 8, 1941. F. F. LONG REELING DEVICE Filed NOV. 24, 1937 AM. 1U. u t l :any

INVETOR FREDERlcK ,E LONG A BY HIS ATTORNYS Patented Apr. 8, 1941 REELING DEVICE Frederick F. Long, Chester, Pa., assiznor to Amerloan Viscose Corporation, Marcus Hook, Pa., a

corporation of Delaware Application November 24, 1937, Serial No. 1\76,323 comme (ci. 242-77) This invention relates to reeling devices or swifts for reeling yarns and more particularly 'to such devices for use in reeling rayon threads in a wet condition, as from the cake in which' the thread is deposited when formed and it is an object of this invention to 'provide a device oi the class described which will permit of the reeling of such threads in a wet condition with a minlmum of stretching of the thread nd abrasion or other damage thereto both during the winding and the removal of the skein from the reel. It is also an object of'this invention to provide a device ci" theclass described which will compensate for the shrinkage during reeling of wet rayon threads, and it is a further object of this invention. to provide a reeling device or swift havingA the arms thereof so constructed as; to yield under increase of the thread tension because of shrinking of the thread and without chang or iner the thread. e drawing in which preferred embodilmch s oi this invention are shown,. Y

i is a viewin elevation of a reeling device swift constructed in accordance with this inventioo and shown with a pluraiity ci skeins partly wound. thereon, the skeinsheling hroisezl away to shown some of the swift arms more cieorlv;

lg, 2 :ls a view in vertical transverse section oi if. one of the swift arms, the section heilig taken ,j ,cent the cuter or tree end of the arm;

L c view in vertical longitudinal section ino portion oi a swift arm shown dei from its supporting means;

ii l view in .elevation of a swift arm i t cached :from the swift;

i5 is a view end elevation of the reeling device swit looking from the right in Fig. i; c is a vertical transverse section or a swift erin having a yielding portion of modified construction; and l i?! is a vertical longitudinal section of the fing portion of the swiftarm oi Fig., 6, the

n. coing taken as on line '1l-1 of Fig. it. f the drawing in which there are shown only soci parte 'ci a swift 'as 1are necessary to illustrate the invention, the invention is ,shown in connection 'with a collapsible swift having the radially extending arms i which are pivotally seemed, os at 2, to a hub 4. rotatably mounted on an mile supported by the frame 1 ,and driven oy nears t. Links I 0 pivotally connected at their cuter ends to the arms I, as at I2, and at their inner ends to a sleeve slidably mounted' on the reduced extension 6 of the hub 4 are operated by the movement of the sleeve on the extension i, to shift the arms l between the position in which the yarn is wound thereon and the position in which the skein is removed from the swift.

When a swift or reeling device is in operation its rotation causes a current of airy to passradially outwardly from the swift hub. Rayon thread when being wound from the cake in which it is gathered when formed is in a wet or moist condition and the passage of the air through the swift causes the thread to dry, the portion of the thread iirst wound being completely dried by the time the winding of the skein is finished. As the rayon thread shrinks in drying, the tension on the portion of thread rst wound would greatly increase, causing the thread to stretch and rub on the swift arms, greatly weakening or rupturing the thread, unless means were provided to vary the effective diameter ci theA swift on which the thread is wound to compensate for the shrinkage of the thread in drying.

llo compensate for the shrinkage of the thread during winding the upper members il! of the arms i are iormed with their upperportions of less thickness than their lower portions so .as to provide shoulders or seats it on opposite sides ci the members it and extending tor the full length of the members it. The seats i8 and the side faces of the upperportions of the members H serve as supports for members i8 oi soit resilient rubber or other suitable resilient yielding ma tcrial. vlhe .meurtriers it are shaped to form side porhlonsndito adapted to engage the seats it on the members Aift and are connected throughout their iencth oy ca curved top portion ith ci less thickness than the .side portions itc. itt their ends the side portions ita are joined hy end portions itc and ital which, together with the side portions itc serve to secure the members i8 in position on the arms i. The inner end portions project above the curved connecting portions lith to i'orm shoulders which retain the windings on the members it while theouter end portions itc are finished hush with the outer surface of the curved connecting portion itt 'to permit of readily removing the windings from' the swift.

its shown in Fig. 2, the curved connecting portion ith is ci' such iength that when a member i8 is appiled to the member it oi" an arm, the portion ich is spaced from the member it and forms a substantially cylindrical yieldahle top portion i'or the member ik.

in use., as the thread shrinks during the winding of the skein, its tension increases, `causing the curved portions i8?) to he deformed, the exl tent oi the deformation of the members i8 increasing with the increase in tension thus shortl ching lthe length of the thread necessary ior the individual turns of the winding and keeping the tension on the thread to an amount which does not appreciably stretch or damage the thread "as it driesn The thread commences to shrink immediately it is wound on the swiftand where, with the non-yielding swift arms of the prior constructions the shrinkage was resisted and the tension on the thread increased, with the soft resilient rubber members I8 in accordance with this invention, the shrinkage of the first strands of the thread causes a deformation or collapse of the top portion Iilb, which, owing to the resilient character of the members I8, is gradual and the thread shrinks without injury or excessive strain. 'I'he gradual collapse of the member I8 decreases the eiective circumference around which the succeeding strands are Wrapped so that the length of the outer strands of the skein are more nearly the length of the inner strands or those first wound and-the thread has not been subjected to an undesirable tension. It is also to be noted that the resilient character of the members I8 causes the strands of the skein to retain the positions in which they are placed on the swift by the traverse to a much greater degreatly reducing the production Ofdamaged or l defective thread.

tions and forming with the end and side portions a snugly fitting cover for the reduced upper portion of the member Il of the bracket I. The outer end portion 20c ends flush with the top portion 20e while the inner end` portion 20d projects above the top portion 20e. Secured to y one side of the top portion 20e throughout the length thereof so as to form substantially an upwardly projecting extension of one of the side rtions 2a is a lip portion 20j, the upper end 3. In a swift, an arm comprising a support and a thread engaging member carried by said support, said thread engaging member comprising a support engaging portion and an arcuate thread engaging portion of resilient yieldable material, said thread engaging portion being secured at one side of said support engaging portion and having a free edge spaced from said support engaging portion to yield under the tension of thread wound upon the swift.

4. In a swift, an arm comprising a member having spaced longitudinally extending shoulders and forming a support and a soft rubber thread engaging member carried by said support, said rubber member being slotted to receive said support and seat on said shoulders and comprising a portion supported by said rubber member and spaced from saidsupport to yield under tension of thread wound on the swift.

5. In a swift, an arm comprising a member having spaced longitudinally extending shoulders and forming a support and a soft rubber thread engaging member carried by said support, said rubber member comprising side and end portions forming a recess receiving said support with said side portions engaging said shoulders and a portion supported by said rubber member and spaced from said support to yield under tension of thread wound on the swift.

6. In a swift, an arm comprising a member having spaced longitudinally extending shoulders and forming a support and a soft rubber thread engaging member carried by said support, said rubber member being recessed to receive said support and seat on said shoulders for frictionally securing said rubber member to said support of which projects over the top portion 20e and is spaced therefrom substantially uniformly throughout its length. At its inner end the lip portion isshaped,to maintain the spacing from the shoulder formed bythe inner end portion 20d so that the lip portion 20f forms a shoulder at its inner end. The lip portion 20j tapers in thickness from its junction with the top portion 20e, being of slightly less thickness at'its free edge and forms a resilient yielding support for the rayon thread, which yieldsl under the increase in the tension of the thread as the thread dries and shrinks in thesame manner as does the modification of Figs, 2 and 3.A

What is claimed is:

l. In a swift, an arm comprising a member having spaced longitudinally extending shoulders and forming a support and a soft rubber thread engaging member carried by said support, said rubber member comprising side portions frictionally engaging said support and carried by said shoulders and a portion supported by said rubber member and spaced from said support to yield under tension of the thread wound on the swift. a

2. In a swift, ah arm comprising a member having spaced longitudinally extending shoulders and forming a support and a rubber thread engaging member carried by said support, said rub- -ber member comprising side portions frictionally engaging said support and resting. upon said shoulders` and a yieldable top portion arched over saidsupport, said top portion yielding to compensate for shrinkage of thread wound on the swift.

and comprising a portion supported by said rubceive said support and an arcuate thread engaging portion of resilient yieldable material, said thread engaging portion being secured at one side of said support engaging portion and having ya free edge spaced from said support engaging portion to yield under the tension of threadv wound upon the swift.

8. In a swift, an arm comprising a support and a thread engaging member carried by said support, said thread engaging member comprising a supportl engaging portion having spaced side members` frictionally securing said member in position and an arcuate thread engaging portion of resilient yieldable material, said thread engaging portion being secured at one 'side of said support engaging portion and having a free edge spaced from said support engaging portion to yield under the tension of thread wound upon the swift. i l

9. In a swift, an arm comprising a support an a thread engaging member carried by said support, said thread engaging member comprising a support engaging portion secured thereon by its own elasticity and an arcuate thread enga8- FREDERICK F. LONG.

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