US1285442A - Pile fabric. - Google Patents

Description

J. W; SOHN.

PlLE FABRIC. APPLICATION min IAN-5.1918.

1 fiflfi g Patented Nov. 19, 1918.

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" JOHN soHN, or'ito'xeonouon, PENNSYLVANIA, ASSIGNOR TO A. r. BAKER & COM- A Y, OEMANAYUNK, PENNSYLVANIA, A COPAR'INERSHIP oomrosrn or ALFRED 1 r; BAKER ANDALFRED r. BAKER, JR. I

PILE FABRIC.

To all whom it may concern:

Be it known that I, JOHN W. SoHN, a citi zen of the United States, residing at Roxborough, county of Philadelphia, and State of Pennsylvania, have-invented a new and --usefnl 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. I

My invention relates to cut pile fabrics wherein two backing fabrics, connected by pile warps extending continuously through both fabricsand from one to the other, are cut, ina plane midway between and parallel to both backing fabrics to form two halves, each constituting acomplete finished fabric having on one face a multitude of short upright out pile ends.

The object of the invention is to so weave the 'fabric'th'at it will exhibit a smooth tufted face without objectionable ridges.

The fabric displays characteristics common 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 alsoextend between the top and bottom fabrics, and binder warp threads each of which extend through only a single backing. The fabric is conveniently woven on a double loom,-two filler shorts or weft picks being thrown simultaneously.

The main novel characteristic of my im- IHOVPfl weave is the presence therein of pile warp threadsarranged in repeats or sets of nine. The pile threads are so arranged and distributed that in extending between the twc-backings they intersect between adjacent pairs of weft threads or filling shots (two opposite weft threads of the respective backings constituting a pair). They are also so arranged and distributed that the number of such intersecting weft threads is the same between any two adjacent pairs of weft threads. They are also so interwoven that their distribution and arrangement relative to any two adjacent weft threads of the same backing is absolutely uniform: in other words, four pile threads extend over, and one under, one weft thread and two pile threads extend over, and two under, the next adjacent weft thread of the same backing; the same arrangement of pile threads Patented Nov. are, tare.

Application filed January 5, 1918. Serial No. 210,409.

existing in the next two weft threads of the same backing.

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 to the first backing and so on. This is a well known weave, but in my specific adaptation and modification thereof, I cause two of the pile threads of a repeat to interweave in the same way with one combination of six successive weft threads of a backing, another two pile threads of a repeat to interweave in the same way with another combination of six successive weft threads, and another two pilethreads Of a repeat to interweavein the same way'with' a third combination of six successive weft threads, while the other three pile threads of a repeat interweave in the same way with the remaining fourth, fifth and sixth of the possible combinations of successive Weftthreads. Or, expressing the same arrangement in different language, two of the pile threads of a repeat interweaye with any six weft threads in one order, ahother t wo pile threads intcrweare with the sam'efsix weft threads in another order, another two pile threads interwcave with the same six weft threads in still another order; while the remaining three pile threads interweave with the same six weft. threads in the three other possible orders.

The invention will be better understood by reference to the accompanying drawings. which illustrate a preferred embodiment and in which- Figure 1 represents a series of longitudinal sections through the fabric, the same being taken along the nine pile warp threads respectively. Fig. 2 is a longitudinal section through the fabric showing the pile warp threads of a repeat, two reference letters being applied to each of three pile threads shown to indicate that two threads are interwoven in the same way with the same combination of six successive weft threads; the ground warp being omitted.

Fig. 3 is a plan view of the top backing of Fig. 2. the bottom backing being omitted.

The space between the threads relatively to the '-=ize of the threads is greatly exaggerated in order that the construction may be more readily observed.

Eight successive weft threads of each backing are shown, a to h inclusive representing the weft threads of one backing and i to 39 inclusive representing the weft threads of the other backing. a and i may be said to constitute one pair of weft threads, Z) and j another pair, and so on. The nine pile warp threads of a repeat are indicated by the reference letters 1 to 9 inclusive.

It will be observed, taking any six successive pairs of weft threads, that pile threads 1 and 6 are interwoven together therewith in one way, pile thread 2 is interwoven therewith iii a second way, pile threads 3 and 8 are interwoveh together therewith in a third way, pile thread 4 is interwoven therewith in a' fourth way, pile threads 5 and 9 are interwoven together therewith 'in. a fifth way, and that pile thread 7 is interwoven therewith in the only remaining way possible.

By reason of this arrangement it will be observed that any part of the fabric comprising two successive pairs of weft threads (say a, i and b, is a counterpart of any other part of t e fabric comprising two successive pairs 0 weft threads. Thus, to the right of the pair of weft threads .1 andz' three pile threads intersect, two (1 and 6) passing from top to bottom and one (7) passing from bottom to top; to the right of the next pair of weft threads 6 and j three pile threads intersect, two 3 and 8) passing from bottom to top and one (4) passing from top to bottom. Four pile threads (1, 6 5, 9) pass over, and one (4) under, weft a, and two pile threads (4 and 7) pass over, and two (5 and 9) under, weft I); while two pile threads pass over, and two under, weft z, find four pile threads pass over, and one er, weft j. This same arrangement and grouping of pile threads characterizes any part of the fabric comprising two successive pairs of weft threads.

It is customary to operate, as pairs, any two pile threads which interweave with corresponding weft threads of the two backings in the same way. In my improved fabriceach pile thread 1 and 6 operates in a pair vith pile thread 7, each pile thread 5 and 9 operates in a pair with pile thread 2,

and each pile thread 3 and 8 operates in a pair with pile thread 4. It will therefore be understood that notwithstanding the relatively large number of pile threads in a repeat, no additionalharness frames are required beyond those required .in the manufacture of pile fabrics of apparently less complicated weaves.

In Fig. 3, I have shown, three pairs of ground warps (1*, sand t) in the backing therein shown, it being understood that corresponding ground warps are used in the other backing. Other arrangements of ground warps may be used, it being understood that my invention is not limited to any particular arrangement of ground waIrI s. a I

aving now fully described my invention, what I claim and desire to protect by Letters Patent is: y a

A b ank adapted to be cut or split to form two pile fabrics and composed of two backing fabrics comprising weft threads and pile warp threads all interwoven with the weft threads of both backings by extending over, under and over successive wefts .of each backing and thence extending across to, and similarly interwoven with, the other backing, the pile threads being arranged in sets of nine, the pile threads of a set engaging the same combination of weft threads. in six different ways, three of said nine pile threads interweaving with any six weft threads in the same way as three other of said pile threads respectively, two similarly interweaving pile threads being interwoven with any six successive weft threads of one backing in the same way that one of the separately interweaving pile threads interweave with the corresponding weft t reads of the other backing so that (between each two adjacent pairs of weft, threads) two similarly interweaving pile threads extend between the backings and intersect asingle pile threadextending in the opposite directhreads interweaving with any six weft threads in two different Ways extending over, and one separately interweaving pile thread extending under, alternate weft threads of either backing, and two pile threads extending over, and two similarly interweaving pile. threads extending under, the remaining weft threads of eachbacking. In testimony of which invention, I have hereunto set my hand, at Philadelphia, Pa, on this 26th day of December, 1917-.

JUHN W. SOHN. Witnesses:

, MARGARETHA Voe'r,

GARRH} EARNSHAW.

Copies of this patent may be obtained for five cents ea ch, by addressing the Uommissionerot Patents, Weshingtcmmfl.

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