US415143A

US415143A - Woven fabric

Info

Publication number: US415143A
Authority: US
Publication date: 1889-11-12
Anticipated expiration: 1906-11-12

Description

(No Model.)

, A. D. EMERY.

WOVEN- FABRIC.

No. 415,143. Patented Nov. 12, 1889.

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1 UNITED STATES PATENT OFFICE.

ABRAM D. EHERY, OF TAUNTON, MASSACHUSETTS.

WOVEN FABRIC.

SPECIFICATION forming part of Letters Patent No. 415,143, dated November 12, 1889. Application filed May 18, 1888. Serial No. 274,258. (No specimensd and useful Improved Woven Fabric, of which the following is a specification.

My invention relates to plain one-ply woven fabrics composed of a single set of chainthreads and two distinct weft-threads which cross thechain-threads in such a manner that each weft-thread occupies only a portion of each shedding, and which weft-threads are transferred to the next succeeding shedding at or near the center of the fabric, as more broadly set-forth and claimed in an appli-l cation filed by me February 28, 1888, Serial No. 265,581. In that application my invention was illustrated specifically by a fabric in which the threads at their transfer in the center of the fabric to the next succeeding shedding cross each other, one over and one under a given chain-thread, with the weft: threads under and over said chain-thread alternately.

According to my present invention, which is a modification of the general invention in respect only to the relation of the weft-threads to the chain-threads at the center of the fabric, the weft-threads are transferred at the center about two adjoining chain threads crossing each other, with the two chain-threads always between them, the weft-threads being alternately over and under the said chainthreads.

In the accompanying drawing, forming a part of this specification, the figure is a plan view of a fabric embodying my present invention with the threads separated and enlarged.

1 indicates one of the weft-threads, which is shown as shaded, and 2 indicates the other weft-thread, which is shown as plain for the purpose of facilitating the description.

- 3 and 4: indicate the two adjoining Weftthreads at or near the center of the fabric, which are always between the weft-threads in crossing.

5 and 6 indicate the main body of the chainthreads. I

The fabric which is illustrated corresponds in all respects, excepting in the particulars hereinbefore mentioned, with the fabric illustrated and described in the application before referred to. v

The threads are disposed, generally speaking, in the following manner: Each pick is made up of two distinct weft threads, one of which fills one half the path in any given shedding and the other the other half. Thus the first pick shown in the lower half of the figure is composed of the shaded thread 1 on the right-hand side of the adjoining chain-threads at the center and of the plain thread 2 on the left-hand side of those chain-threads. The next pick is composed of the same two threads occupying adjoining portions of the shedding, as before, but placed in opposite parts of the fabric by virtue of having passed by each other at the center, as indicated. The third pick is likewise made up of the same two threads placed in the same parts of the fabric as in the second pick. In the fourth pick the threads pass by each other again at the center and cross over to opposite parts of the fabric, and are in the same postion in the fabric as in the first pick described. ric is made up of a set of chain-threads and twodistinct weft-threads which occupy contiguous parts of each shedding in opposite parts of the fabric, and in which, furthermore, the threads occupy the same relative position in the fabric for two successive picks-that is to say, the two weft-threads will lie on the right and left hand side, respectively, of the center of the fabric for two sheddings or picks, and will then exchange positions for two successive picks, and then exchange back in to their original position in the fabric for two successive picks, and so on. Each weft-thread will thus make two passages through one half of the fabric, and then two passages through the opposite half of the fabric, and then two passages through the first half of the fabric, and so on, each passage being through a succeeding shedding. From this description it will be apparent that the weft-threads are arranged in sequences of fourthat is to say, each weft-thread will return to its originalposition every fifth shedding-and the weft-threads are always oppositely placed, so that when one is on the left In other words, the fabpassed over the chain-threads being now beneath, and the position of the other weftthread being correspondingly reversed. Thus at the first transfer shown in the lower half of the figure the shaded thread 1 passes over the chain-threads 3 and 4, while the plain thread 2 passes under the same two threads. In the next transfer at the fourth pick the weft-threads cross over with the same two chain-threads between, but the plain thread 2 now passes over the chain-threads and the shaded thread 1 beneath, completing the sequence, so that at the fifth shedding the threads will cross over and under the adjoining chain-threads in their original position. It will be observed, furthermore, that the weftthread approaching the center of the fabric from the right of the figure passes over the chain -threads at the center in transferring, while the weftthread approaching the center from the lefthand side of the figure passes under the same chain-threads. This formation holds throughoutthe fabric. It will be understood, of course, that the position of the threads may be reversed in this respect, so that the thread entering from the left should pass over the adjoining chain-threads, while the weft-thread entering from the right should pass under,.as the fabric would remain in all essential respects the same. With the exception of the adjoining chain-threads at the center, the remaining chain-threads are arranged in sequences of two, passing over and under the weft-threads alternately throughout the fabric in the usual manner.

It will of course be understood that my invention is not limited to fabrics in which the weft-threads are transferred and crossed about the center chain-threads. This is the usual and convenient form made by running the 100111 at its full capacity; but, as explained in applications filed by me February 28, 1888, Serial No. 265,639, and May 18, 1888, Serial No. 274,259,two parts of the fabric maybe of unequal breadth, my invention in this respect consisting, as described, of transferring the weft-threads into a succeeding shedding at a point between the two selvage edges.

The fabric herein described and claimed is made by the method of manufacture fully explained by me in my applications, Serial No. 265,639, filed February 28, 1888, and serial No. 274,259, filed May 18, 1888, and I make no claim in this application for such methods of manufacture.

\Vhat I claim as my invention is 1. As a new article of manufacture, a plain one-ply fabric coinposedo'f a single sctof chainthreads and two distinct weft-threads trans ferred at or near the centerof the fabric from one pick into a succeeding pick and into opposite positions in the fabric and crossing each other, one over and one under, about two adjoining chain-threads ,2. As a new article of manufacture,a plain one-plyfabric composed of a sin gleset of chainthreads and two distinct weft-threads transferred at or near the center of the fabric from one pick into a succeeding pick and into opposite positions in the fabric and crossing each other, one over and one under, alternately about two adjoining chain-tln'eads.

3. As a new article of manufacture, a plain on e-ply fabric composed of asingle set of chainthreads and two distinct weft-threads transferred at or near the center of the fabric from one pick into a succeeding pick and into opposite positions in the fabric and crossing each other with the same two chain-threads always between them, the weft-thread approaching from one side of the fabric always passing over, and the weft-thread approaching from the other side always passing under, said chain-threads.

Signed at Tauntomin the countyof Bristol and State of Massachusetts, this 12th day of March, A. D. 1888.

ABRAM n. EMERY.

\Vitnesses:

HENRY .T. FULLER, WALTER 'l. EMERY.