US645637A - Loom. - Google Patents

Description

No. 645,637. Patented Mar. 28', 1900.

C. ALVURD.

LOOM.

' (Application filed July 19, 1899.) (No Model.)

2 Sheats$heet l.

L M MW 1 Patented Mar. 20, I900. C. ALVORD.

2 Sheets-Shet 2.

L0 0 M (Application filed July 19 1899.) (No Model.)

' NITED STATES P TENT EEIcE.

oLINToN ALvoRn, or woRoESTER, MASSACHUSETTS, ASsIeNoR, BY MESNE ASSIGNMENTS, TO THE PRESTON HOSE AND TIRE ooMPANY, OF MAINE.

LOOM.

SPECIFICATION forming part of Letters Patent No. 645,637, dated March 20, 1900.

Application filed July 19, 1899. Serial No. 724,342. (No model.)

To aZZ whom it may concern.-

Be it known that I, OLINToN ALvoRD, of Worcester, in the county of Worcester and State of Massachusetts, have invented certain new and useful Improvements in Looms, of which the following is a specification.

This invention consists of aloom having a lay provided with a plurality of shuttle-races, shuttles mounted therein, each of said shuttles operatively connected with an independently-operated shuttl eactuatingrack, and means for operating each of said racks to positively operate said shuttles, all as hereinafter more fully set forth in the following description, and the novel features of which are particularly pointed out and clearly defined in the claims at the close thereof.

In the following description reference is had to the accompanying drawings and to the letters marked thereon, like letters designating the same parts or features throughout the several Views.

Of the drawings, Figure 1 is a front elevationof a loom embodying this invention, portions thereof being represented as broken away to more clearly illustrate the invention. Fig. 2 is a side elevation of the loom shown in Fig. 1. Fig. 3 is a detail of one of the shuttles.

Referring to the drawings, A represents the frame of a 100m, B the driving orcrank shaft journaled therein, and 0 one of the cranks to which is connected one end of a link D, the opposite end of which is connected with the lay E. The lay-beam F is provided with a reed or batten G, at each side of which are located shuttle-races a b 0, within which are arranged the shuttles a b 0, respectively. The shed for the shuttle a is represented at (R, and the harness frames a control the warp-threads which form this shed. The shed for the shuttle b is represented at If, and the harness-frames I) control the warp-threads which form this shed. The shed for the shuttle c is represented at 0 and the harness-frames c control the warp-threads which form this shed.

The three shuttles a b c operate to each Weave a separate fabric independent of the other shuttles, and in order to unite the fabric produced by the shuttle Z7 with the fabric produced by the shuttle a an independentlycontrolled set of warps are incorporated in the fabric, which stitch the two fabrics together, and said stitching-warps are controlled by a harness-frame e, which is so operated that the shuttle b lays its weft under said stitching-warps, and said frame 6 is then lowered, so that the shuttle a lays its weft over said stitching warps, and then said warps are raised up, so as to overlie and engage the weft of the shuttle I) again, and so on throughout the weaving process. The fabric produced by the shuttle c is likewise secured to the fabric produced by the shuttle b by means of another set of stitching-warps controlled by a harness-frame (Z.

In the form of my invention herein shown and described I have shown aloom equipped with three shuttles, although it is to be understood that it is within the scope of the present invention to construct a loom of this character having only two shuttles, their respective harness-frames, and an additional harness-frame adapted to control an independent set of stitching-warps which engage both weft-threads and are incorporated in the fabric during the process of weaving, or in some'instances more than two shuttles may be employed.

Fig. 3 shows a plan view of the upper shuttle c, and said shuttle is formed with a recess f for receiving the bobbin f from which latter the yarn passes out through an eye f Each shuttle is formed or provided with a rack f on one side thereof, and in the shuttle c the said rack is located on the upper side thereof. The shuttles b and c are also formed with racks a b, respectively, said racks being located on the under side of said shuttles.

g 9 represent pinions or toothed wheels which are mounted upon pins 9 and the teeth of said pinions project into the shuttlerace 0 and are adapted to engage with the rack a of the shuttle a. The pinions 9 also engage with a rack 9 which is mounted to slide freely in'a channel or way g provided in the lay-beam F, and means hereinafter described are provided whereby said rack is moved longitudinally to rotate the pinions g and through the medium of said pinions move Each rack is operated from the main crankshaft B by means of mechanism which is constructed and arranged as follows:

Upon a frame A is journaled a countershaft is, which has fixed on its inner end a gear that meshes with a pinion 70 fixed to the crank-shaft B. Upon the shaft 70 are fixed three cams 76 each formed with a camslot k into each of which slots 70 projects a cam roll or truck I, mounted upon a lever 6. Each lever Z is fulcrumed upon a bar or rod Z mounted in the frame A, and is formed with oppositely-extending arms Z and l The arm 1 of each lever Z has a loop l loosely connected therewith at the extremity thereof, into which is hooked one end of an adjustable connection comprising the bars at m, which are formed with right and left screw-threads and the turnbuckle m and to the opposite end of said connection one end of a flexible strap a is connected. The opposite end of the strap 71 embraces a drum n, mounted to turn freely upon a bar 0, which is supported by stands 0' o. Compounded with the drum n is a drum 71 to which is secured one end of a strap 19, which extends upwardly over a sheaf q, mounted upon the lay, and has its opposite end secured to the end of the rack 9 which operates the shuttle I) through the medium of the pinions hereinbefore referred to, and when the strap 19 is drawn downwardly the rack g is moved in one direction-that is, to the left in Fig. 1. The arm Z of the lever l is likewise connected with one end of a strap a the opposite end of which strap embraces a drum or, mounted loosely upon the bar 0. Compounded with drum n is a drum 11 to which is secured one end of a strap p, which extends upwardly over a sheaf q, mounted upon the lay, and has its opposite end secured to the rack Q81 at a point intermediate its ends, so that when the strap 19 is drawn downwardly said rack is moved to the right in Fig. 1. As the straps p and 19 are controlled and operated by the opposite arms of the lever Z when said lever is moved, the drums n? and n will be rotated in opposite directions and one of the straps p or 1) will be drawn downwardly and will positively move the rack in one direction of its movement, while the other strap will be unwound from its drum in proportion and be free to move upwardly as said rackis moved. The racks g and Q32 are each likewise connected with a lever l, mounted upon the bar Z and each of the said levers Z is actuated by a separate cam it and the clifferent cams 70 may beso timed that the shut tles a b 0 may be operated in unison successively or as desired. The cams 70 are so formed that after each movement of the lever Z, or, in other words, after each pick of the shuttle actuated thereby, there is aperiod of rest, during which time the batten beats the weft up against the fabric and returns for the next pick.

What I claim, and desire to secure by Let ters Patent, is-

1. In a loom, the combination of a lever piv oted intermediate its ends, means for vibrat= ing said lever, independent compound drums, strap connections between corresponding members of said drums and the opposite ends of said lever respectively, a reciprocatory shuttle-actuatin g slide, and straps connecting the same with the other members of said com-- pound drums, respectively, substantially as described.

2. In a loom the combination of one or more shuttle-actuating slides,straps connected with each slide, compound drums independently rotatable and having said straps. connected respectively with corresponding members, a lever pivoted intermediate its ends, strap connections between the other corresponding members of the compound drums, respectively, and the opposite ends of said lever, and a wheel having a cam-groove occupied by a part of the lever, whereby the latter is vibrated, substantially as described.

CLINTON 'ALVOR D.

Witnesses: FAYETTE W. WHEELER, OHAs. H. DREW.

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