US1628142A - Device for imparting crinkle to warp threads - Google Patents

Description

1 .1927. May 0 w. K. GUNTER DEVICE FOR IMPARTING CRINKLB To WARP THREADS Filed Sept; 2a, 1926 Patented May 10, 1927.

WILLIAM K. GUN TIER, 0F GAFFNEY, SOUTH CAROLINA, ASSIGNOR TO DERBY DAMASK 1,628,142 PATENT OFFICE.

MILLS, A CORPORATION OF SOUTH CAROLINA.

DEVICE FOR IMPARTING CRINKLE TO WARP THREADS.

Application filed September 28, 1926. Serial No, 138,264.

This invention is a device to be attached to a standard type loom, for the purpose of imparting an even crinkle to certain of the warp threads during the manufacture of socalled crinkled cloth.

crinkled cloth used in the manufacture of bedspreads and the like, special attachments for the looms producing such cloth have been found necessary. Such devices are more or less unsatisfactory because they require alterations in the loom, and the product does not possess a desirable permanence.

One of the objects of the invention is to provide a simple device for imparting a crinkle to the warp threads, said device he ing capable of ready substitution for the usual whip roll arm normally utilized as a part of a standard type loom. A further object is to provide a vibratory or oscillatory whip roll arm, having means for so supporting a plurality of whip rolls, that during oscillations of said arm in synchronism with the operation of the loom, a greater tension will be periodically applied to one warp thread than to the other, so that a uniform crinkle will be imparted to the thread which is under the lesser tension. A further object is to provide a Whip roll arm having means for supporting two whip rolls in planes out of radial alignment with respect to the axis onwhich the roll oscillates, but movable in concentric arcs, so that oscillations of said arm will periodically slacken the top warp thread and cause it to crinkle, and the same motions will tighten the bottom warp thread in a manner to tighten the filling, and to hold the crinkle as the threads are incorporated into the cloth.

The invention will be hereinafter fully set forth and particularly pointed out in the claims. 1 i

In the accompanying drawing:

Figure 1 is a diagrammatic view, partly in section, illustrating a loom with the invention applied thereto. Figure 2 is an enlarged detail View illustrating the whip roll arm.

Referring to the drawing, 10 designates the frame of a loom, 11 is the upper warp beam, and 12 the lower warp beam. The lease rods are indicated at 13, the heddles at 1 1, the lay at 15, the cloth breast at 16, and the cloth roll at 17. These elements are all standard constructions well known in the a link 20.

art, and are diagramn'iatically shown for illustrative purposes only.

The usual whip roll shaft 18 is mounted to oscillate in a suitable position withinv the I v frame 10, movements being imparted to said I-Ieretofore in the production of so called shaft by means of an arm 19, connected with Said link is reciprocated bythe loom mechanism in synchronism with the other moving parts of the loom, in a manner so well understood in the art that it is deemed. unnecessary to illustrate the same in detail.

Secured to the shaft 18, so as to oscillate therewith, and located intermediate between the upper and lower warp beams, is a whip roll arm comprising a body 21 of approximately ogee form as viewed in side elevation. One end of said body is provided with a boss 22 for engaging the shaft 18, and the other extremity is offset with respect to the rest of the body, as indicated at 23, and

provided with a bearing 21 for the upper whip roll 25. Intermediate between the ends of the whip roll arm, and in a lower plane than the bearing 2 1, is a bearing 26 for the lower whip roll 27. It will be observed that by reason of the approximate ogee shape of the arm 21, the axesof the whip rolls 25 and 27 are not in radial alignment with respect to the axis of the shaft 18, but they are so supported that they move in concentric arcs with respect to said axis. 1

In operation, the shaft 18 is periodically oscillated in a manner well understood in the art. It will be observed that as its free end warp thread 6, because of the posit-ion of the roll 27 with respectto the roll 25 and the shaft 18. The slackening of the thread a causes it to crinkle, and as it is led to the lease rods and heddles, the tensioned thread 6 will tighten the filling and thereby serves to maintain the crinkle as the two threads are incorporated into the cloth by thepassage of weft threads through the shed, as the weaving progresses. In this manner a very effective and pleasing crinkly or wavy effect is imparted to the cloth, sufficiently permanent in character to maintain its crinkly condition notwithstanding repeated launderings.

The advantages of the invention will be readily apparent to those skilled in the art to which it belongs. -An important advantage is that the whip roll arm, provided with means for carrying two rolls out of alignment with the axis of oscillation of the arm, may be substitutedtor the standard whiproll arm, and in this manner any Ordinary loom may be readily provided with equipment for the weaving of crinkly cloth. It will be particularly noted that the device is exceedingly simple and inexpensive in construction, and will not readily get out of order or become deranged.

Having thus explained the nature of the invention and described an operative manner of constructing and using the same, although without attempting to set forth all of the forms in which it maybe made, or all of the forms of its use, what is claimed is:

1. A device for imparting crinkle to warp threads comprisingan oscillatory whip roll arm adapted to be located intermediate between the upper and lower warp beams, said arm having means for supporting a plurality of whip rolls in spaced relation with res acct to each other but out of alignment witi respect to the axis of oscillation of said arm, so thatthe thread of one whip roll will be under less tension than the tl'iread ot the other whip roll when the arm is oscillated whereby a crinkle will be produced in the first mentioned thread.

2. A device for inugarting crinkle to warp threads comprising an oscillatory whip roll arm adapted to be located intermediate between upper and lower warp beams, said arm having means intern'iediate between its ends for supporting a whiproll, and having a curved extension provided with means contiguous to the end thereof for supporting a second whip roll, said whip rolls being out of radial alignment with respect to the axis of oscillation oi said arm, so that the thread of one whip roll will be under less tension than the thread of the other whip roll when the arm is oscillated, whereby a crinkle is produced in the'first mentioned thread.

3. A device for imparting crinkle to warp threads comprising an oscillatory whip roll arm adapted tobe located intermediate between upper and lower warp beams, said arm being of approximately ogee torm having means at one end by which it may be supported, means intermediate between its ends for supporting a whip roll, and means at the extremity of its free end for supporting a second whip roll, said rolls being out of duced in the 'firstm'entioned thread.

' 4. A device for-impartingcrinkle to warp threads comprising a whip roll arm adapted to be located intermediate between upper and lower Warp beams, said arm having a curved body and an offset extremity at one end, and a shaft engaging boss at the other end, said curved body ,having means for supporting a whip roll, and said otl'set extremity having means tor supporting a second whip roll, said whip rolls being maintained out of radial alignment with respect to the axis of said boss so that the thread of one whip roll willbe under less tension than the thread of the other whip roll when the arm is oscillated, whereby a crinkle in the first mentioned thread is produced.

5. A device for imparting crinkle to warp threads comprising a whip roll arm adapted to be located intermediate between upper and lower warp beams, said arm being or approximately ogee form having a shaft engaging boss at one end, and means at the other end for supporting a whip roll, said arm having means intermediate between said ends for supporting another whip roll, said rolls being maintained out of radial alignment with respect to the axis of said boss. so that the thread of one whip roll will be under less tension'than the thread of the other whip roll when the arm is oscillated. whereby a crinkle is produced in the first mentioned thread.

6. The combination with a loom, the loom harness, and upperand lower warp beams, of a whip roll arm located intermediate between said warp beams, an oscillatory support for said arm, means for oscillating said arm in time with said harness, whip rolls mounted on said arm in spaced relation with respect to each other but out of radial alignment with respect to the axis of said oscillatory support, so that the thread of one whip roll will be under less tension than the thread of the other whip roll when the arm is oscillating,- whereby a crinkle is produced in the first mentioned thread.

In testimony "whereof I have hereunto set my hand.

WILLIAM R. GUNTER.

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