US440868A - Half to joseph w - Google Patents

Description

(Specimens.)

G. 0.. MOORE. ELASTIC WOVEN FABRIC.

No. 440,868. Patented'Nov. 18, 1890.

UNITED STATES PATENT rrrcn.

GEORGE C. MOORE, OF EASTHAMPTON, MASSACHUSETTS, ASSIGNOR OF ONE- HALF TO JOSEPH WV. GREEN, JR, OF SAME PLACE.

ELASTIC WOVEN FABRIC.

SPECIFICATION forming part of Letters Patent No. 440,868, dated November 18, 1890.

I Application filed May 16, 1890- Serial No. 352,080. (Specimena) To all whom it may concern.-

Be it known that I, GEORGE O. MOORE, a citizen of the United States, residing at Easthampton, in the county of Hampshire and State of Massachusetts, have invented certain new and useful Improvements in Elastic lVoven Fabrics, of which the following is a specification, reference being had therein to the accompanying drawings.

In certain classes of elastic fabrics it has been found desirable to have at the edges thereof rubber warps, which are covered by the weft-threads only. These rubber warps at the edges of the fabrics prevent cockling T 5 or puckering of the said edges by contracting or drawing up the same uniformly with the central portion of the fabrics. An instance of afabric of this kind is shown by Patent No. 170,572, to Leonard and Buckley. It has been found, however, in elastic fabrics woven in the manner shown in the said Leonard and Buckley patent, and in which the rubber warps at the edges of the fabrics are covered by the weft only, that the said edge rubber warps are not bound in sufficiently strong to hold them from contracting somewhat when the web is cut into gores.

The object of my invention is to provide an elastic fabric with what I term a doublecorded locked rubber edge, and this I accomplish by providing at each edge of the fabric two rubber warp-threads, which in the shedding are alternated relatively to the weft and with each other at successive picks in such a manner as to become so interlocked with the weft that they cannot contract into the web when the latter is cut. These interlocked edge rubber warp-threads are preferably provided with braided fibrous coverings 4 previous to weaving to give the wefta better hold thereon and the better to protect the rubber; but a very good result is also secured by employing two rubber edge warps interlocked, as stated, without the braided cover- In the accompanying drawings, Figure 1 is a diagrammatical view representing in enlarged cross-section a portion of an elastic fabric embodying my invention. Fig. 2 is a similar view representing the edge rubber warps as hell] g provided with braided coverings. Fig. 3 is a detail view representing a portion of a braid-covered elastic warp.

The fabric represented byFigs. 1 and 2 consists of face warps a, back warps 6, rubber warps c, binder-warps d, and a weft c, as is common in two-ply elastic woven fabrics. At each outer edge of the fabric are -two rubber warp-threads c, which in the shedding are alternated relatively to the weft and with each other at successive picks, and which, as is shown in Fig. 1, are covered with the Weft only. In the weaving when forming the first shed in the warps the inner rubber warp 0 will be raised, (as will also be all the rubber warps c in the fabric shown but the outer rubber warp 0 will be depressed. After the insertion of the first pick of weft (which will pass under the inner warp c and over the vouter warp c) the positions of the two warps 7o 0' will be reversed relatively to each other or alternated, and when the second pick is inserted it will lie under the outer warp o and over the inner warp c, as shown. The warps 0 thus become in the fabric alternated rela- 7 tively to each other and to the successive picks of weft, producing the corded edge shown.

By employing two edge rubber warp-threads and changing them relatively to the weft and to each other at each pick I make a doublecorded edge, giving to the fabric a neat finish, and I also interlock these edge rubber warp-threads with the weft so strongly that when the web is cut across in forming gores 85 the said edge rubber warp-threads will not contract within the cut edges. By first incasing these edge rubber warp -threads in braided or other fibrous coverings, as represented in Figs. 2 and 8, the frictional hold of the weft thereon is still further increased and the said edge rubber warp-threads are thus better protected from wear, and any danger of being out by the weft is also avoided.

I do not intend to limit the use of my in- 5 vention to the particular form of elastic fabric herein shown, as it is obvious that it may be applied to other. or differently-woven elastic fabrics than that herein represented.

I claim 1.. An elastic fabric provided at its edges with two rubber warp-threads alternated with outer edges With .tWo rubber warp-threads in- [O terlocked by the weft only, substantially as set forth.

In testimony whereof I affix my signature in presence of two Witnesses.

GEORGE O. MOORE.

WVitnesses:

J os. W. GREEN, J 1:, JAMES E. OoYLE.

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