US1238100A - Tension for spoolers. - Google Patents

Description

L. S. BURBANK. TENSION FOR SPOOL FQPPLICATH) N F!LED FEB. 23.1916- Pafeuted Aug 28, 1917 \nvenior.

Louis S. Bu bunK.

LOUIS S. BURIBANK, OF HOPEDALE, MASSACHUSETTS, ASSIGNORaBY MES NE ASSIGN- snares rarnnr orrron. I

MENTS, 'IO DRAPERCORPORATION OF HOPEDALE, MASSACHUSETTS, A CORPORA- TION 0F MAINE.

' TENSION FOR SPOOLERS.

Specification of Letters Patent.

' Application filed February as, 1916; Serial No. 79,866.

It; all whom it may concern:

lie, it known that I, Lotus S. BURBANK, a citizen of the United States, and resident of Hopedale, county of lVorcester, State of lllassachusctts have invented an Improve a bobbin, cop or other yarn carrier. In such machines there is a considerable difference in the tension of the running strands which not only causes a lack of uniformity in winding upon the spools or other yarn receivers' but also results in the wastage of a considerable amount of power wherean unnecessary amount of tension is placed on the yarn running to a large number of spools.

One of the objects of the present invention is to provide a tension mechanism which may conveniently be regulated to provide for the uniform winding of the yarn and for thesaving of the power which otherwise is wasted.

Another object of the invention is to provide means for preventing the formation of [knots or kinks in the running strand be tween the spool and the yarn mass from which the spool is wound.

These objects are accomplished in the present invention by passing the yarn'in'imediately after it leaves the yarn carrier over an adjustable rotatable tension device having a non-slipping surface.

Another object of the invention is to providea tension device which may hc'quickly tl'ircaded by the operator.

Another object of the invention is to pro vide a tension device which willpreserve the quality of the yarn by avoiding squeezing, and the consequent flattening, or scraping or otherwise rougl'iening the surface of the yarn. f

A nothcr ol'iject oi the present invention is to provide moans forguiding the running strand properly to the tension device and For preventing the interference 01' adjacent strands by the l'ialloomng caused by the rapid rotation oi the yarn carrier.

Another hiaturc of the invention consists in providing means for preventing unskilled operators from tampering with the tension device. v

Another feature of the invention consists inproviding means for swinging the bobbin supporting spindles out of operative relation to their respective tension devices to fa- Patented Aug. 28-, 1917;

cilitate the clotting and replacement of the' I bobbins.

Other objects of the invention and the nature thereof will more fully appear from the following description and the HCCOIXM,

pointed out panying drawings and will he in the annexed claims.

The drawings illustrate a portion Ora spooler with the thereto.

In the drawings:

Figure l is a transverse sectional view of present invention applied a sufficient portion of a: spoolor to illustrate the application of the present invention thereto, i

Fig. 2 is a sideelevation of a embodimentof my invention,

Fig. 3 is a median sectional viewot the tension device illustrated in Fig.2 on line 38 Fig, 2, therotatable tension member being shown in elevation the dev ce being shown in vertical position for convenience in reading.

Fig. d is a side elevation showing the friction member which controls the rotation of the rotatahletension cylinder in dotted lines, certain parts of the casing having been removed, I Fig. 5 is a view of a key for-regulating the tension.

preferred I of the same,

Fig. 6 is a vertical sectional view of a.

modified form of rotatable tension device of the class above described and,

Fig. 7 is an end view thereof. The yarn winding machine illustrated in the drawing may he a spooler of the usual type having a frame 1 supporting a series of spool carriers'ifi upon which are mounted spools 3, the spool carriers being driven of bolts The novel tension device forming the present invention consists of a rotatable member carried upon a stand 10 which preferably is provided with a flanged jaw 11 adapted to embrace the rod 12 which extends longitudinally of the machine frame, said jaw being secured thereto by a set screw 13 passing through one member of the jaw and abutting against the rod 12.

The spindle H for supporting the bobbin preferably is secured to a bracket 15 by means of a set screw 16, the bracket 15 being pivotally mounted upon a stud or bolt 17 extending laterally from an extension 18 of the lower end of the stand 10. The pivotal member 17 preferably is in the form of a screw headed bolt having a spring washer 19 interposed between the nuts 20 and the side of the extension 18.

The brackct'lo desirably is provided with divergent lugs 21, 22 suliiciently spaced apart that when the 11o 21 is in engagement with the flange 11 of the jaw 11 the axis of the spindle l-t will be substantiallyin alinement with the tension device and when the lug 22 is inengagement with the flnage 11" the spindle 14: will be sulliciently out of alinemont with the tension device to permit tree removal of the bobbin or other yarn carrier.

'lhe frictional pivotal connection between the bracket 15 and the stand 10 will retain the spindle 1-t either in operative or inoperative position when placed there by the operator.

In order that the tension device may be located at approximately the same distance from the end of the bobbin or other yarn carrier, even though yarn carriers of different lengths are used, the stand 10 is provided with an adjustable extension 23 pretcrably connected to tbeistand by a bolt 2-1. passing through slots 25 in the stand 10 and extension 2?. The extension 23 is provided with a lateralv extension or goose neck 26 upon which is mounted, or formed integral therewith, one of the members 27 ot' the casing which incloscs the rotatable Frictional mcmber.

The member 27 prcl'crably is substantially conoidal in form and il' dosircd may be providcd with u bcak 27' to insure the guiding ,casing membcr ol' the yarn and to prcvcut the interference of adjacent strands by ballooning. The casing mcmbcr L? is providcd at its smaller cud with a prcl'crably c. \'lindrical recess .28, and the inncr wall of the rcccss may. if dcsircd, bc nmcbincd to prcscut a smooth surl'aco 29 adaplcd to engage the cud ol' the rotatable tcnsion lllllllllll illh lhc rcccss 28 being of such a dcpth that tho edge iii f the .47 will be in substantially 'ilhe mcdian trausvcrsc plane of thc surface 'ol the rotatablc mcmbcr.

'lhe rotatable lcnsion mcmbcr Lit) desirably is provided with a hard non-slipping surface which will resist wear from the rapidly running thread and which may be knurled, striated or otherwise roughened to grip the yarn, but which preferably is a granular surface formed by coating a cylinder with carborundum, emery or other usual abradant.

It is desirable that the rotatable tension member shall beconstructed of material of light weight, such as wood, in order to eliminate as far as possible the momentum acquired by the rapid rotation of the member, so that its speed of revolution may be sensitively varied, that is, retarded or accelerated according to any requirements in the operation of the machine such as in starting the device or by the sudden arrest oii ihe tension member due to the kinking of 'the yarn, thus avoiding undue variations in tension upon the yarn which would be caused by the momentum of a relatively heavy rotatable tension member.

By having the rotatable tension member of relatively large diameter the tension 1111-- poscd upon the yarn will not beali'ected by changes in the speed of the yarn caused by the building up of the winding upon the spool, consequently no compensating mechanism is required; furthermore the variation in thickness, weight, or stili'ncss of the yarn will not materially allect the tension imposed upon it by a rotatable tension member of the character above described.

The rotatable tension member preferably is made of a wood of such porosity that it is capable of absorbing oil freely so that the cylinder when soaked in oil may be run continuously without the necessity of further lubri -ation.

The cylindrical tcnsion member 30 may conveniently be mounted upon a pin or stud 33 projecting axially from the casing member 27 and its freedom of revolution controlled by a friction disk 31 pressing against the opposite end of the cylinder from that which rests against the machined surface :29. The pressure bctwccn the friction disk 34 and the end of the -ylinder may convenicutly bc rcgulatcd by a nut 35 mounted upon a lull haml screw ill) upon the stud 33, a spring washer Iii' desirably bcing interposed bctwccn said nut and the tension disk to pcrmit a proper amount of slippage of the rotatable tension member to prevent hrcaking thc yarn. 'lhc spring washer 37 may, as illustralcd in Fig. -l, he in the form of a hub 35 having laterally extending arms an engaging the friction disk :il.

'lhc stud 233 )rctcrablv is novidcd with The adjacent ends of the conoidal casing members 27 and 41 are spaced apart a short a bearing for the shank 47 of the key, (see Fig. 5) which conveniently may be made in the form of a cylinder having a knurled end gripping portion 48 and a toothed end 49 adapted to engage teeth 50 in the cylindrical periphery of the'nut 35. It will be obvious from the construction thus described that a skilled operator such as the foreman maybe provided with a key by which he may adjust the pressure of the friction disks against the rotatable tension members to provide a uni-. form spooling tension throughout the entire yarn Winding machine and having once set the tension device remain assured that unskilled operators will not tamper with the same. f

The stands 10.1nay be adjusted upon the rods 12 so that the axis of the spindles 14: may be positioned at any desirable inclination, such as that illustrated in Fig. 1, and by reason. of the adjustability of the extension 23 of-the stand 10 the tension device may be placed at the desired distance from the ends of the yarn carriers Whether the same be short or relatively long.

Theaxcs of the spindles preferably aretangential to the surface of the cylindrical tension member and in the operation of the machine the yarn is carried directly over the tension member, or preferably with one turn about the same," so that there is always a positive engagement between the yarn and the rotatable frictional member and a uniform tension thereby interposed upon the running strand, and led therefrom directly over the traverse rod 7, through the guide 6 to the spool or other yarn receiver. The

'conoida-l surfaces of the casing members 27,

41 serve to.direct the yarn, notwithstanding its ballooning, into the slot or space between the adjacent ends of said members.

It is found in practice that the roughened or granular surface of the rotatable'tension member serves not only to ll'ltllllllillll"il1l even tension upon thd yarn but also removes bars and imperfections from the yarn and by reason of the rapidity of its rotation develops a suflicient centrifugal force to render the device self clearing, thereby avoiding the necessity of stopping the machine to remove the accumulation of lint, etc, in the tension device.

In Figs. 6 and 7 a modified form of tensi'on device is illustrated. In this device the goose neck 26 of the extension 23 is pro videdavith a spherical socket 51 which receivcs a spherical head 52 extending ce1itrally from the base of the conoidal casin member 5% the member 54: bein )rovided with a. preferably conical recess the flat base 55 of which is adapted to engage frictionally the end of the rotatable tension member, 57, the cylindrical surface of which is provided with a roughened or granular yarn engaging surface 58 of the character above described. Rotation of the casing member 54 may clfectivcly be prevented by a lug or fin 26* upon the goose'neck 26 engaging a suitable recess on theback of the casing. v

The rotatable tension member 58 may conveniently be mounted upon a shaft 59 extending centrally through the spherical boss 51 of the casing and having a screw threaded portion OO'cngaging screw threads ($1 in an aperture extending through the goose neck 26.

A set nut 62, which may be in the form of a toothed or lmurled'whcel, may be provided to maintain the shaft (30 in adjusted position. The cooperating casing member (33 also is preferably conical in form complementary to the recess in the using member 54 and the flat base (34 of said recess engages the opposite end of the rotatable tension member 58to that engaged by the base 55 of the casing member 54. The casmg member (33 desirably is provided with oppositely disposed inwardly extending ribs or lugs (36, 67 which forina seat for a spring 68 preferably in'the form of a wire passing through an aperture 70 in tlie' gu or end of the shaft 59 so that the casing inc inber 63 is retained in yielding frictional engagement With the end (35 of the rotatable memberv In order to adjust; the tension in this de-v vice the set nut 62 is released and the conoidal casing member 63 rotated to screw the frictional surface more tightly against the conoidal end of the rotatable member or,

panying claims and that various other forms of adjustment therefor may be used.

It Wlll also be understood that the features of construction disclosed herein are illustrative merely and that various modifications may be made within the spirit and scope of the following claims.

Having thus described my invention what I claim as new and desire to secure by Letters Patent is:

1. In a winding machine in which the yarn is wound from a yarn carrier upon the rotating yarn receiver, a rotatable tcnsion member located in proximity to the end of said yarn carrier engaging the running strand and rotated thereby, and means for adjusting the rotating tension member toward and from the end of the yarn carrier in the direction of the axis of said yarn carrier whereby said tension member will be properly located in respect to the ends of yarn carriers of different lengths.

In a yarn winding machine a tension device .comprising a rotatable cylindrical member having a non-slipping yarn engaging surface, narrowly separated casing members surrounding said rotatable tension member having oppositely inclined surfaces for guiding the strand into position upon said cylindrical member and means frictionally engaging theiends of said member inclosed within sala casing members.

3. Ina yarn winding machine a tension device comprising a rotatable cylindrical member constructed of a porous material impregnated with a lubricant and having a non-slipping thread engaging surface, means for guiding the running strand thereupon and means frictionally engaging said member to control the rotation thereof.

4. In a yarn winding machine, a tension device jcomprising a rotatable cylindrical member constructed of wood soaked in a lubricaht and having its cylindrical surface coated {with a granular substance, means for guiding the running strand thereupon and means-frictionally engaging said rotatable member. I I

5. A; tension device for a running strand of yarn comprising two oppositely disposed conical; members having recesses in adjacent ends and spaced apart to form a guideway for the running strand, a cylindrical tension member rotatably mounted within said recess having one end engaging one of said members, a frictional instrnmentality carried by the other stationary member engaging the opposite end of said rotatable member, and means for adjusting said frictional instrumentality.

(S. A tension device for a running strand of yarn comprising two oppositely disposed conical members having recesses in adjacent ends and spaced apart to form a gnideway for the running strand, a cylindrical yarn engaging member mounted within said recess upon a shaft connecting said conical members and having one end engaging one of said members, a. friction disk engaging the opposite end of said rotatable member, a spring engaging said disk, and means for adjusting the pressure upon said spring.

7. A tension device for a running strand of yarn comprising two oppositely disposed conical members having recesses in adjacent ends and spaced apart to form a guideway for the running strand, a cylindrical yarn guiding member rotatably mounted within said recess upon a shaft connecting said conical members and having one end engaggaging the opposite end of said. rotatable member, a spring engaging said. disk and means for adjusting the pressure upon said spring comprising a nut having a toothed periphery mounted upon said shaft, and a bearing in one of said conical members adapted to receive a key for rotating said nut. I

8. A. tension device for a running strand oi yarn comprising a rotatable tension member adapted to engage the yarn and be rotated thereby, a casing substantially inclos-' ing said rotating member, means frictionally engaging said rotating member and means operable by a key inserted through-an aperture in said casing for adjusting the pres sure of said frictional engaging means upon said rotatable member.

9. A tension device for a rotating strand comprising a tension member rotatably mounted upon a shaft within a substantially closed casing and adapted to be engaged and. rotated by the running strand, means friction-ally engaging said rotatable member, a nut screw threaded upon said shaft and adapted to be rotated to regulatethe pressure upon said frictional means, said nut being provided with a toothed cylindrical periphery, adapted to be rotated by a key having complementary teeth.

10. In a yarn winding machine a stand having a lateralextension supporting a tension device connected to the side rail of the machine, a spindle supporting bracket pivotally connected to said stand and adapted to be adjusted to position the axis of the spindle in substantial alinement with the tension device or to be swung from said position i to facilitate the 'dofiing of the yarn carrier and means for adjusting the position of said tension device in the direction of the axis of said spindles.

11. In a yarn winding machine a stand connected to the side rail or the machine and provided with an arm' formed of two relatively adjustable sections, a rotatable tension device upon the end section, a spindle supporting bracket pivotally connected to said stand and adapted to be adjusted to position the axis of the spindle in substantial alinement with the tension device or to be swung from said position to facilitate mg one of said members, a friction disk enthe doflingof the yarn carrier; frictional.

'Jneans for retaining said spindle supporting bracket in adjusted positions, and means "for limiting the extent of said swinging movement.

12. In a yarn Winding machine a stand havinga lateral extension SUPPOItilXg a teus'ion device connected to the side rail of the machine a spindle supporting bracket pivotally coi'inected tosaid stand and adapted to be adjusted to position. the axis of the spindle in substantial alinement with the tension device or to he swung from said position to facilitate the dofling of the yarn carrier, frict onal means for retaining said spindle supporting-bracket in adjusted positions, and means for limiting the extent of said swinging movement,consisting of two 'interengaging extensions upon "said stand andbnacket adapted to permit a predetermined limited'relative movement.

13. In a yarn Winding machine stand", f

Men-.- q to the-siderail ofthe' 1 I having a lateral extension supportin sion device, connected I machine, a splndie supporting bracket-plyetally connected to said stand and adapted to be adjusted to position the'exisjof the spindle in substantial aliriemern't ivith the i tension device or to lie swung from said p'osition to facilitate the doiiing ofthe'jarncarmeans f01f- -etain-ingj said spindle suppor tingbracket' in adjusted posis tions, and means for limiting theeXtent-of said swinging movement, censistin" 'of a to rier, frictionai pair of divergentprojections on said racket"- embracing a relatively stationary projec} l tion on said stand and spaced apart. sufiic'ientiy to permit a predetermined relative movement therebetween. 1 I In testimony whereof, I have signed my name to this epeeifieatiom

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