US1307701A - Alonzo e - Google Patents

Description

A. E. RHOADES. YARN TENSION FOR WINDING MACHINES.

APPLICATION FILED OCT- 5. I9I8.

1 307,701. PatentedJune 24,1919.

InventoT. AIon o E. Rhoades. SmiZLfinwmZ' Attys.

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UNITED STATES PATENT onnron.

ALONZO E. nnoanns, or HOPEDALE, MASSACHUSETTS, ASSIGNOR T0 nnnrnn coaronn'rron, or HOPEDALE, MASSACHUSETTS, A conrona'rron or MAINE.

YARN Tension roe WINDING-MACHINES.

Specification of Letters Patent.

Patented J une 24, 1919.

Application filed October 5, 1913. Serial no. 256,947.

To all whom it may concern:

Be it known that I, ALoNzo E. RHoADEs, a citizen of the United States, and resident of Hopedale, county of Worcester, State of Massachusetts, have invented an Improve ment in Yarn Tensions for Winding-Machines, of which the following description, in connection with the accompanying drawing, is a specification, like characters on the drawing representing like parts.

This invention relates to improvements in yarn winding machines and the object thereof is to provide means for maintaining a more even tension upon the yarn as it is wound upon the yarn receiving means and also of more effectively guiding the running strand as it approaches said yarn receiving means.

More specifically the invention relates to improvements in spoolers or winding machines of like character in which a spool or other yarn receiving means rotated by suitable mechanism draws the yarn from a yarn supplying means such as a bobbin or cop the speed with which the yarn is drawn by the yarn receiving means from the yarn supplying means. This causes a variation in the tension upon the running strand. Where the yarn supplying means is in the form of a bobbin or cop having a filling wind this variation in the tension on the running strand is accentuated by reason. of the conoidal. form of the windings.

The principal object of the present inven tion is to provide means for msuring a uniform tension uponthe running strand as it i is wound upon the spool and this is accom plished in the invention by locating the tension device closely adjacent to the spool or other yarn receiving means. The tension de vice thus located preferably is carriedby the traversing mechanism and is positioned between. said traversing mechanism. and the weight iimveva body ofthe spool or other yarn receiving de vice. By placing the tension device between the traversing mechanism and the yarn receiving means a uniform tension is always maintained upon the strand asit leads to the spoolor other yarn receiving means not withstanding variations in the tension ofthe yarn as it comes from the yarn supplying means.

i Afurther object of the invention is to provide a tension device which acts to remove or crush any. motes, bunches or kinks which i may pass through the guide and clearer of the traversing means. a

A furtherobject of the invention is to provide a yarn winding machine which shall impose a uniform tension upon each of the running strands leading to the respective yarn receiving means, and this preferably is accomplished by partly supporting a weight upon each of the running strands between thetraversing mechanism andthe yarn receiving means. i

By providing weights of difi'erent size the mechanism may be adapted for use with different kinds of yarns and for different tensions," but with use of the same weights throughoutthe machine a uniform tension upon al1ofthe running strands, will be maintained. l

. A further object of the invention is to provide a tension device of the character above specified which may be applied to usual commercial forms of yarn winding machines without material modification of "the machlnes.

Other objects and features of the invention will more fully appear from the following description and the accompanying drawings andwill be pointed out in the annexed claims;

o In the drawings;

t Figure 1 is a transverse section ofa sufficient portion of the spooler to illustrate the application of the present invention thereto, Fig.2 1s a plan new of the guide and clearer and. a preferred form of tension which is adapted to be located between said guide andclearer and the yarn receiving means,

Fig. 3 is a side view of the same Fig. 4 is avvertical sectional View of the tension means on lines i 4, Fig. 3,. the being strewn in elevation, and,

iiltl 1 in the usual manner from belts passing around the central rotating drum 5. The yarn supplying means which is illustrated herein in the form of a filling wound bobbin or cop 6, is supported upon a spindle 7 vcarried by an arm 8 at the bottom of a bracket 9 which is clamped to a rod 10 extending longitudinally of the frame of the machine. The bracket 9 is provided with an arm 11 which extends in substantial parallelism with the spindle 7 and is provided at its ends with a laterally extending fork 12 which serves as a guide for directing the yarn from the end of the supplying means.

The traverse of the yarn upon the spools is effected through yarn guiding devices carried by a traverse rod 13 which is reciprocatedby the arms 14 through the yoke 15 in theusual 1113111181. The guiding means for directing the running strand to cause the same to traverse the spool may be of any suitable type which will permit the placing of a tension device between such guiding means and the spool or other yarn receiving means so that the tension device may be located closely adjacent to the body of the spool. A desirable form of combined guiding means and tension mechanism is illustrated herein and comprises a bracket having a body portion 17 which has a partially cylindrical recess 18 to engage the traverse rod 13 and a clamping member 19 provided with a complementary cylindrical recess 20, said clamping member being secured to the body member 17 by a set screw 21, so that the bracket may be clamped at any desired position on the traverse rod 13.

The body portion 17 of the bracket has an upwardly extending arm 22 which forms a stationary member of the clearer guide for the traversing mechanism. The body portion is also provided with a downward extension in which a stud 23 is secured by a set screw 24. The stud 23 provides a'support for an L-shaped counterweighted arm 25, the upwardly extending member of which has a recess to receive a rib upon the guiding member 26, the guiding member 26 being secured to the arm 25 by a set screw 27 passing through a slot in said arm into the lower portion of the guiding member 26. The guiding members 22 and 26 desirably have converging curved edge portions 28 and 29 which merge into inclined parallel walls which form a slot 30 through which the yarn'passes to the yarn receiving means.

By adjusting the movable member 26 the walls of the slot may be positioned in accordance with the size of yarn being spooled and serve not only to guide the yarn but also to strip from it motes,- burs, etc., in the usual manner.

It will be understood that other forms of traverse guides and clearers may be employed and that the above construction is a preferred mechanism to which I have applied my invention.

In the preferred embodiment of the invention illustrated herein the body portion of the bracket has a lateral extension 31 which has a smooth weight supporting surface 32 preferably somewhat inclined to the horizontal when the bracket is fastened to the traverse rod 13. A stud 33 extends normal to the central portion of the weight supporting surface 32. A longitudinally apertured weight 34: rests at its bottom upon said surface 32 and is mounted loosely on the stud 33, the aperture in the weight being of larger diameter than the stud.

The extension 31 desirably projects a short distance beyond the weight supporting surface and has secured to it a pin or guide 35 provided with a curved end 36. The weight 3-1 is desirably in the form of a frustum of a cone having a beveled or curved bottom edge 37 to avoid cutting or abrading the strand runnin beneath the weight.

WVeights of different sizes may be employed to provide means for supplying clifferent degrees of tension, such as may be required by different kinds of yarn or different windings upon the yarn receiver. shows a weight 34 of a larger size and Fig. 5

hence capable of producing a greater tension.

The weights 34 may be protected especlally against accidental or careless re moval and loss by an inclosing casing 38 conforming substantially in contour to the weights 31, having an open bottom and a top 39 providing a. head which may be screwed down upon the stud 33 and secured at any desired point thereon by a set nut a0.

In the operation of the machine the running strand of yarn 12 is carried from the yarn supplying means 6 through the forked end 12 of the bracket 9, thence through the slot 30 between the pivoted and stationary clearer members or guides 22, 26, thence downwardly around the stud 33 beneath the bottom of the weight 3-1, thence over the guide 35 to the spool or other yarn receiving means.

The weight therefore is partially carried upon the strands of yarn between the guiding or clearing members of the traverse mechanism and the spool or other yarn receiving means so that the tension is applied withstanding the difference in the speed at which the yarn is drawn from the yarn supplying means as the traverse bar is raised and lowered.

The weight 34 by being loosely mounted upon the stud 33 rotates as the running strand of yarn is drawn beneath its base so that any motes, bunches or kinks which may have passed through the slot 30 between the guiding or clearing means 22 and 26 on the traverslng mechanlsm will be ironed out before they reach the spool.

It is to be understood that the embodiment of the invention disclosed herein is illustrative and not restrictive and that various modifications may be made Within the meaning 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 yarn winding machine comprising means for rotating a yarn receiving means to draw yarn from a yarn supplying means carried by a stationary support, a traverse rail, means located between the traverse rail and the yarn receiving means, and closely adjacent the latter, acting to apply a uniform tension to the short portion of the running strand being traversed, whereby the uniform tension will be imposed upon the strand as it is wound upon the yarn receiving means, irrespective of. variations in the tension upon the yarn between the trav erse rail and the yarn supplying means.

2. In a yarn winding machine comprising means for rotating a yarn receiving means to draw yarn from a yarn supplying 'means, a traverse rail, a clearer guide and a tension device located between said traverse ra1l and the yarn rece1v1ng means and acting to apply a un1form tenslon to theshort portion of the running strand being traversed,

irrespective of variations in the tension upon the yarn between the traverse rail and the yarn supplying means.

In a yarn winding machine comprising means for rotating a yarn receiving means to draw yarn from a yarn supplying means and reciprocating means for causing a traverse of the yarn upon the yarn receiving means including a clearer guide for the running strand carried by said reciprocating means; a plate having a stationary yarn engaging surface located between said clearer guide and the yarn receiving means, a cooperating weight resting upon said plate and means for guiding the running strand between said plate and said weight whereby the weight will be partially supported by the running strand and a uniform tension applied to the short portion of the running strand being traversed and leading to the yarn receiving means irrespective of the variations in tension upon the yarn as it comes from the yarn supplying means.

4. In a yarn winding machine comprising means for rotating a yarn receiving means to draw yarn from a yarn supplying meansand means for causing a traverse of the yarn upon the yarn receiving means in eluding a guide for the running strand; an inclined plate having a yarn engaging surface located between said guide and the yarn receiving means, a stud extending up wardly normal to said yarn engaging surface, a weight slidably and rotatably mounted upon said stud and means for guiding said strand around said stud beneath said weight.

5. In a spooling machine comprising a series of spool supports and means for rotating the same, a complementary series of bobbin spindles, a traverse. railhaving guides for the strands of .yarnrunning from the bobbins to the spools and means for reciprocating said traverse rail; means for maintaining a uniform tension upon each and all of the running strandscomprising a series of weight supporting surfaces carried by said rail and located between said rail and the respective spools and closely adjacent to said spools, uniform weights carried by said weight supporting surfaces and means for guiding said strands beneath said weights to said spools.

6. A combined traverse guide and tension for spooling machines comprising a bracket having a lateral extension presenting a stationary yarn engaging surface, a stud extending upwardly therefrom normal to said surface, a weight slidably and rotatably mounted upon said stud and means for guiding the yarn over said stationary surface beneath said rotatable weight. v

7. A combined traverse guide and ten sion for spooling machines comprising a bracket having yarn guiding members and a lateral extension having a yarn engaging surface, a stud extending upwardly therefrom normal to said surface, a weight rotatably and slidably mounted upon said stud, a cover substantially inclosing said weight and means for adjustably supporting said cover upon said stud.

In testimony whereof I have signed my name to this specification.

ALONZO E. RHOADES.

copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I). G.

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