USRE492E - Improvement in elastic gore cloth - Google Patents

Description

REISSUED SEPT. 15, 1857. G. WINSLOW. MANUFACTURE OF ELASTIG GORE CLOTH UNITED STATES PATENT OFFICE.

OH'ARLES WINSLOW, OF LYNN, MASSACHUSETTS,

IMPROVEMENT lN ELAsnc GORE CLOTH. v

Specification forming part of Letters Patent No. 17,950, dated August 4, 1837; Reissue No. 492, dated September 15, 1857.

.To all whom it may concern:

"Be it known that 1, Cinemas WmsLoW, of Lynn, in the county of Essex and State of Massachusetts, have invented an Improvement in the Manufacture of Elastic Gore Cloth and I do hereby declare that the same is fully described and represented in the following specification and the accmnpanying drawing, of which Figure 1 exhibits a strip of elastic gore cloth having its edges turned over. and arranged with reference to its warp andweft in accordance with my invention.

The elastic fabric on which my invention is based is eitherone made of common clot-h stretched and united by an elastic cement or that for which Letters Patent of the United States of America were granted on the 6th day of May, A. D. 1856, to Henry G. Fyer and J ohn Helm, such elastic fabric being composed'of two pieces ofcloth, either woven or "otherwise made with the threads of the weft in a diagonal position or at-an acute angle to the threads or. the warp, and combined and caused to adhere together by a cement composed .either of india-rubber or gutta-percha, the two pieces of cloth being united by the compound and the-latter being afterward vulcanized' or not, as circumstances may require. In carrying out my improvement I take of such fabric a .strip of a width somewhat greater than it is to be when finished for being cut into elastic gores or made into an elastic band or belt, and 1 turn over and cement downupon the main part of the strip, and by a suit- I able rubber cement or like composition, each edge of the material, lapping it upon the main part of the strip about a quarter of an inch,

or such other distance as may be desirable in order to imitate binding; and, furthermore, previous to the said strip having its edge or edges so turned down and cemented, each edge to be turned is to be cut on an acute angle to or out of parallelism with either the filling or the warp threads.

For obtaining .the maximum elasticity the cut may be made at an acute angle with the filling of the cloth, and also. at an acute angle with the warp-threads, in order that when the edge is overlapped and turned down the line of bend of it may be not only at such an acute an glewith eitherthe warp or weft threads as shall be the complementTof half the angle which they make-withe ach other.

I the drawing the il ,ciions of the warpthreads are indicated by black lines at a a, while those of the filling are denoted by red lines, as shown at b b, A being the strip of cloth having its opposite parallel edges turned down or overlapped upon the rest of the cloth, as shown at c c, and also in Fig. 2, which is a transverse section of the fabric. By thus arranging the overlap with respect to the warp and weft elasticity is secured longitudinallyin the binding, so as not to counteract the elasticity of the remainder of the cloth. Furthermore, the edges are prevented from either fraying out or being torn, they being nuch strengthened, and afinish is given to the cloth. I would remark that the strip is inelastic widthwiseoin direction of either warp or weft, and elastic only in the direction lengthwise or out of parallelism with either warp or weft. The blue lines ffexhibit the manner in which the strip is to be cut into elastic gores, each gore being either of a trap ezoidal or triangular shape or an approxima tlon thereto, as circumstances may require.

I am aware that an elastic cloth has been 7 made as a shirred fabric. This, howcver, dit

fers essentially from the elastic gore cloth made in accordance with my invention, as the edge of the former is turned over parallel to the warp. I do not claim the peculiar elastic cloth as made with its filling arranged at an acute angle with its warp; nor do I claim the elastic fabric as-m'ade of two layers of such cloth combined; but

What 1 do claim as an improved manufactureis- An elastic band or gore cloth when made not only of a fabric composed of a cement of india-rubbcr or gutta-percha and two pieces of cloth, in which the warp and weft of each piece are made to cross one another diagonally or at acuteangles, but with the edges of the cloth cut and overlapped and cemented down in a line or lines out of parallelism with either the warp or weft threads, the line of maximum elasticity in the binding makingthat angle with the warp as well as the weft which is the complement of half the angle which they make with each other.

In testimony whereof I have hereunto setmy signature this 8th day of August A. D. 1857.

' ,CHARLES VVINSLOW. Witnesses It. H. EDDY, An/rrrnn NEILL.

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