US70964A - Improvement in looms - Google Patents

Description

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IMPROVEMENT 1N Looms.

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TO ALL WHOM IT MAY OONOERN l Be it known that I, H. M. COOPER, of4 Lindley, in the county of Grundy, and State of Missouri, have invented a new and useful Improvement in Hand-Looms; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled 'in the art to make and use thesame, reference being had to the accompanying drawings, forming part of this specification, in which- Figure 1 is a vertical longitudinal section, taken in the line w z, iig. 8.

Figure 2, aside view.

Figure 3 is a plan ortop view of my improved loom.

Similar letters of reference indicate corresponding parts., v

This invention relates to improvements in the construction of hand-looms, and consists in an arrangement of mechanism in connection with the lay or batten, by the motion of which, back and forth, all the operations of the loom are performed; the whole structure being simple, easily regulated, and kept in order, while the working of the loom is positive and effective in every part for weaving fine or coarse cloths in the best manner, as hereinafter more particularly described. e

A is the framing, B the breast-beam, C the lay or hatten, D the cloth, and E the warp-roll; F the harnessframe,and G the treadles, of which there are two sets, corresponding to each other, placed in each side of the.

frame, and connected with the harness-frames. The treadle-cam shaft H is operated by means of ratchet-wheels a a, on each end, actuated by ratchets b b, attached to levers d d, fitted loosely on the ends of the shaft H, which levers are connected by the rods e e with the lay O, so nthat with each back stroke of the lay the cam-shaft is turned partly around, and raises corresponding treadles ineach of the sets G Gr, by means of cams or tappets, as usual. Thus the shedding movement is given to the harness bythe motion of the lay itself by two ccrrespondingtreadles at a time, on opposite sides of the frames or treadles, which are thus lifted steadily and evenly'. For giving the feed or take-up motion to the cloth-beam or roll' D, a train of gear-wheels, g gl g2, receive intermittent motion corresponding with the weaving of the cloth when the weft is struck up, by ,means of a ratchet-wheel, h, actuA ated by a pawl, le, attached to a lever, m, connected by the rod n with the lay-sword O. The speed `can be adjusted by shortening or lengthening the lever m. For driving the shuttle back and forth, an angular block or hand, jo, is pivoted in a recess at the middle of the nn'der side of the lay, which hand is connected with the shuttle-drivers o o by cords q q. And attached to the inside of the breast-beam B, so `that they can rise and fall at their outervends, are two levers, r r, which pass under the handp on each side between guides, and then bend downward from the lay to the treadle-cam shaft H, over the cams s s, and are raised by the cams alteri nately with each movement of the lay. The levers rr are thus raised alternately and brought into contact with the hand p in such a manner that the hand shall be turned to the right and left alternately, and thus operate the shuttle-drivers either on the right or left at every forward stroke of the lay. The shuttle is not operated on unless the harness changes, and therefore there can be no balks in the cloth. The shuttles-boxes ti are attached to the frame of` the lay by hinges iq, g. .?,A't o permit their being folded `down close by the side of it out of the wayl when the loom is not in'cperation. A rod or bar, v, is fixed in the swords ofthe lay, running across between them, in such acposition that when the lay is thrown forward the rod shall strike the ends of the treadles, and ride upon those which are down, in order to bring and hold the warp-threads down evenly on the lay, and thus enable the shuttle to pass clear and smoothly over them. And when the ends of the treadies arc thus pressed down by the rod v, they bear upon a cross spring-bar, w, to produce the necessary tension on the warp for keeping it even on the lay without excessive strain.

It will be evident that by this varrangement of the various working parts of the loom, in connection with the lay as described, they will all perform their several offices by the motion of the lay back and forth in weaving, so that the operation shall be easy, regular, and certain.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent,l is

1. lhc combination of the lay C, the treadle-cam shaft H, the treadles G, the cloth-beam D, the shuttle driving hand p, the levers rr, the cams s s, the spring-bar cv, and the cross-bar v, connected, arranged, and operating as and for the purposes herein described. Y

2. lhe combination and arrangement of the lever m, pivoted near its lower end to the frame of the loom,

and provided at its upper end with the screw-thread by means of which the hinged pawl k is raised or overed, with the connecting-rod n, sword C', cloth-beam D, gear-wheels g g g2, and ratchet-Wheel h, as herein described for the purpose specified. V i

3. The arrangement of the pivoted hand 1o, the levers r r, the'cams s s, the spring-bar w, and. the cross-bar ai, combined with the lay Gand the shuttle-drivers o o, substantially as and for the purposes described.-

4. Connecting the shuttle-boxes t t with the lay by hinges as and for the purpose set forth'.

The above specification of my invention signed by me this 11th day of March, 1867.

H. M4 COOPER,

`Vi'itnesses:

HUGH VENEILL, K. S. COOPER.

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