US2557315A - Elastic web - Google Patents

Description

June 1951 A. SCHIAPPA 2,557,315

ELASTIC WEB Filed June 24, 1950 WRRRRRCGRRCC IN V EN TOR.

ANTHONY SCHIAPPA.

, posite edge of the fabric.

Patented June 19, 1951 ELASTIC WEB Anthony Schiappa, Pawtucket, R. I., assignor to Moore Fabric Company, Pawtucket, R. I., a corporation of Rhode Island Application June24, 1950, Serial No. 170,105

2 Claims.

This invention relates to the production of a new and improved elastic web and particularly to the provision of more satisfactory selvages than are achieved in the construction shown in the prior Moore Patent No. 2,418,187, also belonging to applicants assignee.

It is the general object of my invention to provide an elastic web in which one or more rubber selvage warps are firmly held under tension and in which these selvage warps retain their position and utility, even if out by a needle in a stitching operation.

To the accomplishment of this general object, I provide a novel sequence and arrangement of rubber selvage warps, a rubber binder warp and rubber body warps, in combination with nonelastic body warps and with filling which is commonly non-elastic.

My invention further relates to arrangements and combinations of parts which will be hereinafter described and more particularly pointed out in the appended claims.

A preferred form of the invention is shown in the drawings, in which Fig. 1 is a plan view of a portion of my improved elastic web; and

Fig. 2 is a weaving draft thereof.

My improved elastic web, as shown diagrammatically in Fig. 1, comprises an edge wire W, a rubber selvage warp S which may comprise one or more strands, a rubber binder warp ll, rubber body warps l2, non-elastic or cotton body warps l4 and I5, additional rubber body warps I6, and additional non-elastic or cotton body warps l1 and [8.

The general arrangement of the body warps M to l8 may continue throughout the width of the fabric, and a duplicate but reverse selvage portion will commonly be provided at the op- The various rubberwarp threads are commonly but not necessarily of the covered-rubber type. Filling threads 20 are interwoven with the warp threads as shown in Fig. 1, and are commonly non-elastic.

It will be understood that the edge wires W merely hold the edges of the fabric in transversely-spaced relation during the weaving operation, and it will be further understood that the fabric is drawn 01f of the wires as the weaving proceeds, so that the wires form no part of the finished fabric.

Fig. 2 is a conventional weave diagram of the fabric shown in Fig. 1, with the parts which are raised and pass over the filling shown shaded, and with the parts which pass under the filling shown clear.

2 From the disclosure of Figs. 1 and 2, it will be seen that the wire W and the rubber selvage warp S are woven together and one-up and onedown with respect to the filling threads 20.

The rubber binder warp II is similarly woven one-up and one-down, but with the crossings op- I posite to the crossings of the selvage warp S.

The rubber body warps l2 are woven one-up and one-down in step with the rubber selvage warp S, and the cotton body warps l4 and I5 are shown as woven two-up and two-down alternately.

The rubber body warps l6 are woven one-up and one-down in step with the rubber body warps i2, and the cotton body warps H and l 8 are woven two-up and two-down alternately and in step with the warps l4 and 15 previously described.

As previously stated, the alternating insertion of elastic and non-elastic body warps continues throughout the width of the web, and the opposite selvage contains an edge wire, a selvage warp, and a binder warp corresponding to the parts W, S and l i previously described.

It will be understood that the rubber warps are all woven under tension, so that they contract substantially in the finished fabric but that they are still under suflicient tension to make the web satisfactorily elastic.

It is found that the rubber binder warp i l, interposed between the elastic selvage warp S and the elastic body warps i2, binds the warps S and l 2 so firmly into the fabric that no substantial additional shrinkage can take place, even if one or more of the selvage or body warps is out by a needle in some stitching operation.

The selvage structure above described also gives the tape a most desirable finished appearance and substantially its value and saleability. It will be understood that the weave in the body portion is illustrative only and that the body weave may be substantially varied within the scope of my invention.

Having thus described my invention and the advantages thereof, I do not wish to be limited to the details herein disclosed, otherwise than as set forth in the claims, but what I claim is:

1. An elastic web comprising a rubber selvage warp, rubber body warps, non-elastic body warps disposed in groups alternating with said rubber body warps and with each group comprising a plurality of non-elastic warps, a rubber binder warp for the selvage interposed between said selvage warp and the next adjacent rubber body warp, and non-elastic weft threads for said web, said rubber selvage warp and said rubber binder warp being woven one-up and one-down under 3 tension but in opposite sheds, and the 'niit adj acent rubber body warps being woven under tension and in the same shed as said rubber selvage warp.

2. An elastic web comprising a rubber selvage warp, rubber body warps, non-elastic body warps disposed in groups alternating with said rubber body warps and with each group comprising a plurality of non-elastic warps, a rubber binder warp for the selvage interposed between said selvage warp and the next adjacent rubber body warp, and non-elastic weft threads for said web, said rubber selvage warp and said rubber binder warp being woven one-up and one-down under tension but in opposite sheds, the next adjacent rubber body warp being woven under tension and in the same shed as said rubber selvage warp, and the non-elastic body warps being woven two-up and two-down alternately and in part in a different shed from the next adjacent rubber body warp.

ANTHONY SCHIAPPA.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 283,100 Green et a1. Aug. 14, 1883 2,418,187 Moore Apr. 1, 1947

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