US1270229A - Pile fabric. - Google Patents

Description

UNITED STATES xPerrnivr OFFIOE.

p JOHN W.' SOHN, OF ROXBOROUGH, PENNSYLVANIA, ASSIGNOR TO A. T. BAKER & COM- PANY,

OF MANAYUNK, PHILADELPHIA, PENNSYLVANIA, A COPARTNERSHIP COM- POSED F ALFRED T. BAKER AND .ALFRED T. BAKER, JR.

PILE FABRIC.

Appneafion mea Maren 2s, 1917. serial No. 157,891.

To all r4'whom t may concern:

Be it known that I, JOHN I SOHN, a

' citizen of the United sans, residing a Roxborough, county of Philadelphia, and State of Pennsylvania, have invented a new and useful Improvement in Pile Fabrics, of

i which the followin `is a full, clear, and eX- act description, re erence being had tothe accompanying drawings,which form a part of this specification. U e

My invention relates to cut pile fabrics wherein two backing fabrics, connected by pilewarps extending continuously through both 'fabrics and from one to theother, are cut in a plane midway between and par allelV to both backing fabrics to form two halves, 4each constituting a complete nished fabric having onone face a multitude of short upright cut pile ends.

The Object of the invention is to soy weave the `fabric thalt with the employment of feight 'series of pile warp threads, of which further object of thejinvention is t0 so pro-y one of each series is arranged in a set of eight pile warp threads, a relatively full tufted fface will"y be produced with a minimum weight of warp in the backings. A

duce a smooth 4tufted face without objectionable ridges. y

The fabric displays .characteristics commonto 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 fab` rics, and binder warp threads each of whichfe'x'tend through only a single backing. The fabric is conveniently woven on a double loom, two ller shorts or weft picks being-thrown simultaneously.

A preferred embodiment of the invention is shown in the accompanying drawings,in whichz-f y Figure 1 is ya cross-section through the fabric parallel' to the warp showing four pile warp threads of a set and the corresponding binder or ground warp.

Fig. 2 is a section parallel to and between the top and bottomfabrics, looking in the direction of the arrow, Fig. 1.

I employ, as hereinbe ore stated, eight pile warp threads in a set, marked respectively 1, 2, 3, 4 5, 6, 7 Iand 8. In F1g. 1, for purposes of clearness, only four p1le '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 4 with the corresponding pile warps of the backing not shown.

The weft threads of the upper backing are marked a, b, c, d, e, f, g, 7L, and of the lower backing z', j, lc, Z, m, n, o, p.

Each pile thread extends successively over, under and over three successive weft threads of one backing fabric, thence to the other backing and successively over, under and over three successive weft threads thereof and thence across ito the first backing. Pile thread 2 intesects the weft in the same manner as, but two picks in advance of, pile thread 1. Pile thread 3 follows the same course but ltwo picks in advance of the pile other pile threads, say the first, as shown.`

Pile thread 4 Aalso operates as a pai-r with one of the other pile threads, say the third, as shown: that is, along any Given number of pairs of weft threads, pile thread 4intersects the weft of one backing inthe same manner that pile warp 3 intersects the weft of the `other backing. This causes pile thread 4 to intersect pile thread 3 between the two backings andv also Ito bind in, alon successive weft threads, pile threads 1 an 2, either or both, thus performing, in a measure, a function analogous to that of a ground, binder or backing warp for exactly half of the other three pile threads, besides being alwaysbound in itself by one of the other pile threads.

As hereinbefore stated pile threads 5, 6, 7 `and 8 operate in pairs with pile threads 1, 2, 3 and 4 respectively, that is, along the same pairs of weft threads, pile threads 1, 2, 3 and 4 engage one backing in the same mannerthat pile threads 5, 6, 7 and 8 intersect the other backing.

Inasmuch as pile threads 3 and 4, 3 and 7, 7 and 8 and 4 and 8 all Operate in pairs as above described, it will be understood that pile threads 4 and 7 follow precisely

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