US436937A - greene - Google Patents

Description

(No Model.)

G. A. & J. E. GREENE.

LOOM.

No. 436,937. Patented Sept. 23, 1890.

WITNESSES:

I I Z UNITED STATES PATENT OFFICE.

GEORGE A. GREENE AND JOSEPH F.,GREENE, OF OAZENOVIA, NENV YORK.

Loom.

SPECIFICATION forming part of Letters Patent No. 436,937, dated September. 23, 1890.

' Application filed ram, 17, 1890. Serial No. 340,203. (No model.)

found that the doubled edges at opposite sides of the loom have a tendency to draw in and thus narrow the fabric and draw the warpthreads thereat out of proper alignment, and thereby vary the grade of the texture of the said portions of the fabric from that of the central or main portion thereof.

The object of this invention is to obviate the aforesaid defect; and to that end the invention consists, essentially, in sustaining a bar or rule stationary in proximity to and parallel with the reed and Within the warp and fabric, as hereinafter more fully described, and set forth in the claim.

In the accompanying drawings, Figure 1 is a side elevation of a loom embodying our improvements. Fig. 2 is a plan view taken in the plane m as, Fig. 1. Fig. 3 is an enlarged vertical transverse section on the line y y, Fig. 2. Fig. 4 is an enlarged vertical longitudinal section on line ,2 2, Fig. 2; and Fig. 5 is a detached side View of one of the temples.

Similar letters of reference indicate corresponding parts.

A represents the loom-frame; B, the warpbeam, on which the warp is wound; C, the socalled whip-roll, over which the warp passes from the Warp-beam.

D denotes the cloth-beam, upon which the fabric is wound as it is woven; F, the harness r or heddles, and I the reed, which latter is carried ona swinging frame I, suspended from the top of the loom-frame. All of said parts are arranged in the usual and well-known ward at said edges. The said temples may be either of the form designated jaw-temples or of the characterof roller-temples, as shown in the drawings, or of any other suitable and well-known form. The said temples are supported on arms I) 12, secured to the loom-frame, and grip the folded edges of the endless fabric near the line of Weaving. Between the reed I and templesaa, and parallel with the said reed, we place a small rod or rule 0, extending across the loom and lying within the two layers of fabric, and with the inner edge in close proximity to the line of weaving, the said rod or rule being of a length to reachcompletely across the interior of the tubular fabric and hold the same laterally distended immediately back of the temples, which grip the folds of the fabric and retain the same distended. This rod or rule a we sustain stationary in its aforesaid position, preferably by means of wires d 01, extending straight and parallel from the ends thereof through the reed I and harness F, and secured to the whip-roll O or to some fixed portion of the loom-frame at the rear end thereof. In passing the shuttle alternately through the upper and lower sets of warp the weft-thread passes around the exterior of the wires (1' d, and consequently the outer Warp-threads are relieved of the inward strain of the weftthreads, and therefore the texture of the fabric is rendered uniform throughout.

We are aware that prior to our invention a board has been introduced into the fabricfor the same purpose for which the rod or rule 0 is employed; but such a board has been so arranged near the reed as to cause the latter to push the said board forward, and a spring or weight has been employed to draw the board rearward during the operation of the loom. This forward-and-back moving board, however, frequently caught with its ends the threads of the fabric and thereby disarranged the same, which defect is entirely obviated by the employment of the stationary rod or rule 0, as hereinbefore described.

To further insure evenness in the texture of the fabric we employ convenient means for throwing the tension from the warp-beam, when desired, the said means consisting of a bell-crank e, pivoted to the rear portion of the loom-frame and having one of its arms connected with the tension -lever l, which bears on the warp-beam and has a spring f connected to its free end, as shown in Fig. 1 of the drawings, the other arm being connected by a rod 0" with a hand-lever h. By means of the said lever and its described connection with the tension-lever Z the friction of the latter upon the Warp-beam can be moderated while the loom is in motion.

Having described our invention, what we claim as new, and desire to secure by Letters Patent, is-

The combination, with the loom-frame, swinging frame suspended from the top of the loom-frame, reed carried on said frame,

and the harness, of the arms I) b, secured to the sides of said frame, temples a a, supported on said arms and gripping the folds of the fabric, the rod 0, lying within the fabric between the temples and reed and parallel with the latter, and wires d 01, extending from the ends of said rod through the reed and harness and secured to the rear of the 100m, substantially as described and shown.

.In testimony whereof we have hereunto signed our names this 8th day of February, 1890.

GEORGE A. GREENE. [L. s] JOSEPH F. GREENE. [L. s] Witnesses:

J. W. HALL, H. N. CLARK.

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