US1270230A - Pile fabric. - Google Patents

Description

J. W. SOHN.

FILE FABRIC.

arrucmou FILED MAR. 28. m7.

Patented June 18, 1918.-

FIG

STATES PATENT UF-FTQE.

JOHN W. SCI-IN, OF ROXBOBOUGI-I, PENNSYLVANIA, ASSIGNOR TO A. T. BAKER & COM- PANY, F MANAYUNK, PHILADELPHIA, PENNSYLVANIA, A COPARTNERSHIP COM- POSED 0F ALFRED '1'. BAKER AND ALFRED T. BAKER, JR.

PILE FABRIC.

Application filed March 28, 1917.

To all whom it may concern:

Be it known that I, JOHN WV. SonN, a citizen of the United States, residing at Roxborough, county of Philadelphia, and

State of Pennsylvania, have invented a new and. useful Improvement in Pile Fabrics, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, which form a part of this specification.

My invention relates to cut pile fabrics wherein two backing fabrics, connected by pile warps extending continuously through both fabrics and from one to the other, are

cut in a plane midway between and parallel to both backing fabrics to form two halves, each constituting a complete finished fabric having on one face a multitude of short upright cut pile ends.

The object of the invention is to so weave the fabric that with the employment of eight series of pile warp threads, of which one of each series is arranged in a set of eight pile warp threads, an even and uniform distribution of the cut pile ends will be produced on the tufted face of each cut and finished backing fabric and wherein the pile threads are so arranged relatively to one another that they bind each other to the weft throughout a large part of the fabric, thereby minimizing the amount of ground warp required to impart the necessary strength, tightness and rigidity to the backing.

The fabric displays characteristics c0inmon to woven pile fabrics in that it is composed of a top backing, a bottom backing, pile warp threads which interlace with the weft or filler threads of both backings and also extend between the top and bottom fabrics, and binder warp threads each of which extend through only a single backing. The fabric may be conveniently woven on a double loom, two shots of weft being thrown simultaneously.

A preferred embodiment of the invention is shown in the accompanying drawings, in which:

Figure 1 is a cross-section through the fabric parallel to the warp showlng four pile warp threads of a set and the corresponding binder or ground warp.

Fig. 2 is a section parallel to and between Specification of Letters Patent.

Patented J line 18, 1918.

Serial No. 157,892.

the top and bottom fabrics, looking in the direction of the arrow, Fig. 1.

I employ, as hereinbefore stated, eight pile warp threads in a set, marked respectively 1, 2, 3, l, 5, (S, 7 and 8. In Fig. 1, for purposes of clearness, only four pile threads are shown, it being understood, however, that where any pile thread of the four shown engages a weft of one backing in a particular way, a corresponding pile thread, not shown, engages a weft of the other backing in the same way. Thus, in Fig. 2, the interlacing of pile warps 5, 6, 7 and 8 with the weft of the backing shown is precisely the same as the interlacing of pile warps 1, 2, 3, and l with the corresponding weft threads of the backing not shown.

The weft threads of the upper backing are marked a, .7), c, J, c, f, g, it, and of the lowering backing 2', y', 7:, l, m, n, 0, [2.

Each pile thread extends successively over one weft thread of one backing fabric, thence under two weft threads of the same backing, thence over the next weft thread of the same backing, thence across to the other backing, thence over a weft thread in the second backing, thence under two weft threads of the second backing, thence over the next weft thread of the second backing and thence across to the first backing: and so on.

Pile thread 5 (which, for purposes of clearness, is omitted from Fig. 1) operates as a pair with pile warp 1; that is, along any given number of pairs of weft threads, pile thread 5 intersects the weft of one backing in the same manner that pile warp l. intersects the weft of the other backing. This causes pile warps 1 and 5, in passing from one backing to another, to intersect between two adjacent pairs of weft.

In the same manner pile threads 9 and 0, 3 and 7, and 4- and 8 operate respectively in pairs.

However, it will be observed, from Fig. 2, that the eight pile threads of a set all engage differently the same combination of weft threads. Thus pile thread 1 passes over weft shots c and (Z of one backing; and in the same backing pile thread 2 passes over weft shots I; and g; 3 over f and a; 4: over (Z and g; 5 over 0 and it; 6 over 0 and 7 over I) and c; and 8 over It and c.

Thus an absolutely even distribution of the pile threads is effected, and the pile threads of each half set bind in pile threads of the same half set throughout a large part of the fabric. The latter feature of my improved pile fabric permits of the employment of a single binding or ground warp thread in each backing for each half set of pile threads. The ground warp is caused to pass successively under two adj acent weft threads, successively over, under and over the next three, under the next two and over the next, and so on, as clearly shown in Figs. 1 and 2; thereby binding in all the pile threads that have not been bound in by other pile threads of the same half set.

Having now fully described my invention, what I desire to claim and protect by Letters Patent is j 1. A pile fabric composed of two backing fabrics comprising weft threads and pile warp threads all interwoven with the weft threads of both backings and extending between the backings, there being in a repeat eight pairs of weft threads, the pile threads being arranged in sets of eight, each of said pile threads extending over one, under two and over one weft thread of one backing and thence extending across to and interwoven in a similar manner with four weft threads of the other backing, the eight pile threads of a set all interweaving differently with the eight pairs of weft threads of each repeat so that one pile thread of each half set crosses from one backing to another between every two adjacent weft threads of each backing, whereby an even distribution of the cut pile ends in the finished fabric is effected.

2. A pile fabric composed of two backing fabrics comprising weft threads and pile warp threads all interwoven with the weft threads of both backings and extending between the backings, there being in a repeat eight pairs of weft threads, the pile threads being arranged in sets of eight, each of said pile threads extending over one, under two and over one weft thread of one backing and thence extending across to and interwoven in a similar manner with four weft threads ofthe other backing, four adjacent pile warp threads interweaving with one backing in respectively the same way as the next four adjacent warp threads interweave with the opposite backing, the eight pile threads of a set all interweaving differently with the same combination of weft threads of each backing, thereby effecting an even distribution of the cut pile ends in the finished fabric, and also causing the pile threads to bind in each other throughout a large part of the fabric, thus effecting a saving of ground warp.

3. A pile fabric composed of two backing fabrics comprising weft threads and pile warp threads all interwoven with the weft threads of both backings and extending between the backings, there being in a repeat eight pairs of weft threads, the pile threads being arranged in sets of eight, each of said pile threads extending over one, under two and over one weft thread of one backing and thence extendingacross to and inter' woven in a similar manner with four weft threads of the other backing, four adjacent pile warp threads interweaving with. one backing in respectively the same way as the next four adjacent warp threads interweave with the opposite backing, the eight pile threads of a set all interweaving differently with the same combination of weft threads of each backing, and a ground warp in each backing for each half set of pile threads and interwoven with the weft in such manner as to bind in the pile threads not bound in by other pile threads of the same half set.

In testimony of which invention, I have hereunto set my hand, at Philadelphia, on this 23rd day of March, 1917.

JOHN W. SOHN.

Copies of this patent-may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. G.

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