US2250261A - Narrow tubular fabric - Google Patents

Description

July 22, 1941. B. J, GOLDSMn-H. 2,250,261

NARROW TUBULAR FABRIC Filed Oct. V21. 1939 ATTORNEY.

Patented July 22, 1941 UNED ST rss PATENT oFFicE 3 Claims.

This invention relates to ribbons and other narrow fabrics, for example tapes, bindings, etc., and to the method of making the same.

One object of the invention is to produce woven fab-ric ribbons from broad goods in such manner that it is unnecessary to subject the ribbons to special treatment at the cut edges to prevent ravelling thereof. In other words, one object of the present invention is to produce from broad goods narrow fabrics which are inherently nonravelling at their side edges.

Another object of the invention is to produce ribbons or other narrow fabrics having side edges which are of flat tubular formation and which are characterized by well defined side edge portions.

A yet further object of the invention is generally to provide ribbons or other narrow fabrics of improved appearance and to facilitate the manufacture of such narrow fabrics.`

The above objects of the invention will be more fully understood from the following description, reference being had to the accompanying drawing which is to be considered only as illustrative of the invention and not in limitation thereof.

In the drawing:

Fig. 1 is a fragmentary perspective view of woven fabric from which the ribbons are made in accordance with the present invention, and illustrates one step in the method of producing said ribbons;

Fig. 2 is a fragmentary perspective view of a section ofthe fabric illustrated in Fig. l', the fabric constituting a step product produced in accordance with the method of the present invention;

Fig. 3 is a fragmentary perspective view of the ribbon produced in accordance with the present method from the broad goods illustrated in Fig. l;

Fig. 4 is a View similar to Fig. 1 illustrating another form of the invention;

Fig. 5 is a fragmentary perspective view of the nnished ribbon produced from the fabric illustrated in Fig. 4.

Referring now to the drawing in detail, the broad goods, from which the ribbons or other narrow fabrics are produced in accordance with the present invention, is illustrated in Fig. l. Said broad goods consists of woven fabric produced from any of the numerous yarns and comprises longitudinally extending portions I0 of flat tubular-woven fabric of ribbon or other narrow fabric width spaced laterally or weft-wise of the piece and joined to narrow portions I2 of singleply fabric, said portions I0 and I2 being woven in integral relation. The side edge single-ply portions I4 of the broad goods are also woven integrally with the adjacent tubular portions I0 and are preferably narrower than the intermediate single-ply portions I2.

In producing the narrow fabrics, the broad goods illustrated in Fig. l is cut into a plurality of individual webs ES, illustrated in Fig. 2, by slitting said broad goods in the single-ply fabric portions I2 as indicated more or less diagrammatically by the lines A-A in Fig. 1. The individual web IE5 thus produced consists of flat tubular-Woven fabric of indefinite length and comprising two plies I8 free from attachment tov each other for the full length thereof, except at their side edges which are joined to the portions 20 of single-ply fabric.

After the broad goods is cut to produce the individual webs of tubularly woven fabric with attached marginal single-ply fabric as illustrated in Fig.4 2, said webs are turned inside out whereby to position the attached marginal single-ply fabric 20 interiorlyrofthe tubular-woven fabric, that is, between the plies I8, as illustrated in Fig. 3, thereby producing the ribbon or other narrow fabric which, while cut from broad goods, is thus inherently non-ravelling at the side edges thereof.

In the form of the invention illustrated in Fig. 5, the ribbon 22 produced in accordance with the method of the present invention comprises the at tubular-woven portion of indefinite length having plies 24 with attached marginal single-ply fabric 2E as in the ribbon illustrated in Fig. 3, but in accordance with this form of the invention, ribbon 22 is formed with rounded side edges 28 extending for the full length of the ribbon. These rounded side edges are constituted by groups of warp threads 30 held together by portions of weft threads 32. It will be understood that ribbon 22 is produced from broad goods in the same way as the ribbon illustrated in Fig. 3 except that in weaving the broad goods, groups of Warp threads 30 are woven together by weft threads interiorly of the tubular portions Illa of the broad goods, as illustrated in Fig. 1. The single-ply fabric is indicated at I2a between adjacent tubular-woven portions Illa, and at Illa at the outer longitudinally extending ends of the broad goods. It will be understood that the broad goods illustrated in Fig. 4 is cut into individual webs by slitting said broad goods in the intermediate single-ply fabric portion or portions, as indicated at BB, to produce the individual webs of tubular-woven fabric with attached marginal single-ply fabric, and that thereafter the individual webs are turned inside out to position the attached single-ply fabric interiorly of the tubular web and to position the groups of warp threads 3|] exteriorly of the ribbon at the opposite side edges thereof, as illustrated in Fig. 5.

From an inspection of Fig. 5 it is apparent that the ribbon produced in accordance with the present invention has well defined side edges. It is within the scope of the present invention, however, to obtain the clearly defined edge effect in other ways. Thus, for example, narrow side edge portions of the tubular-woven parts of the broad goods may have a weave which contrasts with the weave in the main or intermediate parts of the tubular-woven fabric portions. Thus, `for example, as illustrated in Fig. 3, the marginal side edge portions 34 of the rib-bon may have a taffeta or-other weave, the width ofthe portion having a taifeta weave beinggindicated by the longitudinally extending lines 36 spaced inwardly from the side edges ofthe ribbon, there being a similar width in both plies I8. The material of said plies between lines 36 in each ply may be of any suitable weaveY which contrasts somewhat with the weave of marginal portions 34'. Instead of taffeta or single shot marginal edge portions, the latter may be constituted by a double shot weave, and similarly the weave of plies I8 between indicating lines 36 is woven to provide a contrast so that the narrow marginal side edges of the ribbon are accentuated as is the case with the rounded edges illustrated in Fig. 5 or withthe taffeta or single shot edge hereinbefore referred to in the reference to- Fig. 3.

As the invention is susceptible of numerous modifications which will occur to skilled artisians, particularly in View of the present disclosure, I do not wish to be limited to the forms of the invention herein except as may be required by the scope of the appended claims.

Having thus described my invention, what I claim and desire to secure by Letters Patent is:

1. Ribbon or other narrow fabric comprising a flat tubular-woven fabric of indefinite length and of ribbon or similar narrow width and cornprising opposed plies of woven warp and weft threads, said tubular-woven fabric having attached marginal edge portions of single-ply fabric disposed interiorly thereof, said tubular- Woven fabric having groups of warp threads of coextensive length disposed externally of said tubularly woven fabric along the opposite side edges, respectively, thereof and held together by weft threads, said groups of warp threads being additional to the warp threads of said opposed plies and defining the opposite side edges of the ribbon.

2. Ribbon or other narrow ware comprising a flat tubular-woven fabric of ribbon or similar narrow width, said tubular-woven fabric being formed of two single fabric plies united at their adjacent side edges by integrally woven singleply fabric disposed at both side edges, respectively, of the ribbon internally thereof, and groups of warp threads disposed only along said side edges of the ribbon externally thereof at the juncture of said two fabric plies with said adjacent single-ply fabric, said last mentioned warp threads being additional to the warp threads of said fabric plies and held in place by weft threads of said fabric plies.

3. Ribbon or'other narrow fabric comprisingra flat tubular-woven fabric of indenite length and of ribbon or similar narrow width and comprising opposed plies of interwoven warp and weft threads, said tubular-woven fabric having integrally woven marginal edge portions of single-ply fabric disposed interiorly thereof, said opposed piies of the tubular-woven fabric each having narrow marginal side edge portions adjacent the line of juncture of said opposed plies with said single-ply fabric formed by a characteristic weave different from the Weave of the intermediate portions of said opposed plies of the tubular-woven Vfabric whereby to provide the ribbon with clearly defined outer side edges.

BERTRAM J. GOLDSMITH.

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