US50041A - Improvement in hand-looms - Google Patents

Description

UNITED lSTATES PATENT OFFICE yJOHN SEAMAN AND WM. Y. HENDERSON, OF ANDOVER, NEW YORK.

IMPROVEMENT lN HAND-LOOMS.

Specification forming part of Letters Patent No. 50,041. dated September 19, 1865.

To all whom it may concern:

lBe it known that we, JOHN SEAMAN andf WILLIAM Y. HENDERSON, of Andover, in the county of Allegany and State of New York, have invented a new and useful Improvement in Looms, and we do hereby declare that the following is a full, clear, and exact description thereof, which will enable those skilled in the art to make and use the saine, reference being had to the accompanying` drawings, Jforming part of this specification, in which- Figure l represents a plan or top view of this invention, a portion of one ofthe shuttleboxes beingremoved the better to display other parts. Fig. 2 is a longitudinal vertical section of the same.

Similar letters of reference indicate like parts.

The object ot' this invention is to construct a hand-loom so that the motions both of the harness and ot' the shuttle shall depend upon the motion ofthe lay or hatten. The harness motion is ed'ected by an arm extending from the hatten and connected by a pivot with a levercatch thatacts upon a lantern-,shaped cam mounted on the treadle-shaft, in combination with suitable arms or tappets inserted in said treadle shaft in such a manner that for each stroke of the batten a quarter-revolution (more or less) is imparted to the treadle-shaft and the harness is changed by the action ot" the tappets on the treadles. The shuttle-motion is effected by means of sliding blocks secured in each end of the batten and operated each by a spring lever or driver, which is set automatically by the combined action of square disks, hook-catches, and cams in such a manner that on each forward stroke of the hatten a partial revolution is imparted to each of the square disks and the driver on 011e end of the hatten is set, while that on the other end (having been set on the previous stroke) is liberated, and by its action on the sliding block connected to it the shuttle is propelled to the opposite end of the batten.

A represents a frame, made of wood or any suitable material in the usual form and shape ot' frames for looms. One end of this frame forms the bearings for the yarn-beam C, and the other end supports the breast-beam D, which is situated above the cloth-beam E, having its bearings in suitable boxes secured to the uprights ofthe frame A in the usual manner.

From the upper side ot' the side rails of the loom rise two uprights, F, which support the heddle-bearer G, and from this heddle-bearer extend two forked arms, c, which form the bearings for the axles of rollers a, supporting cords b, from the ends of which the heddles H vare suspended. Said heddles are constructed in the usual manner, each of two shafts, one on top and one on bottom, and the lower shafts connect by wires @or other suitable connections with the treadles I. These treadles are connected by pivots f to standards g, rising from a cross-bar, h, of the frame A, or they may be arranged in any other convenient position, and they are alternately depressed by the action of tappets t'. These tappets are secured in the proper positions in the treadle-shaft J, to which an intermittent rotary motion is imparted by the action of a hooked lever-catoh,j, on a lantern-shaped disk, k, which is mounted on said treadleshai't, as shown in Fig. 2 of the drawings. y

The lever-catch j is connected by a pivot, l, to an arm which is suspended from the sole ot' the lay or batten L, and it (the lever-catch) is guided by a slotted standard, n, rising from the cross-bar o ot the frame A. It is so shaped that on theforward stroke ofthe lay its hook catches over one ofthe projecting corners of the disk It, and on the backward stroke of thelay a quarterrevolution is imparted to said disk and to the treadleshaft and by the consequent action of the tappets 'i on the treadles the requisite harness Inotion is produced.' It is obvious that more than two heddles may be operated by this arrangement, and we do not wish to confine ourselves to the precise number ot heddles shown in the drawings. It must also be remarked that the disk 7c, instead of being made with four projecting corners or teeth, might be made with more or less such teeth 5 or, instead of this, wires might he inserted in its sides or two disks might be used connected by wires similar to pinions in Watch or clock movements, though we use, by preference, a disk such as shown in the drawings, because the same can be easily made and secured to the treadle-shatt in the proper position.

The tappets v3 (shown in the drawings) com sist of simple wires yinserted in the treadleshaft at right angles to each other7 so as to correspond to the number of teeth on the disk 7c. If the number of these teeth is changed, the

to receive. the shuttle, and with a sliding block,"

r', which acts on the shuttle and causes it to fil y from one end ofthe shuttle-race to the other.

Each ot' the blocks r is provided with a socket to receive a stud, s s', which projects from the upper surface of the driver or spring-l.

These drivers have their fulcra on pivots uw, secured in arms t o', which extend lever t t.

from the sole of the lay toward the heddlebearer G, as clearly shown in the drawings, and they (the drivers) are subjected to the action of strong springs w w', that have a tendency to force the same inward, causing the sliding blocks 1^ to bear against projections in'` side the boxes g g.

In order to set the drivers and to release them atthe properintervals,cam-disksaza21 are employed7 which turn on suitable studs rising from the arms o v', and which are situated under the sliding blocks r', as shown particularly in. Fig. 2 of the drawings. Said camdisks are provided with four (more or less) teeth, b2 b21, on their peripheries, and with two (more or less) cams, c2 c, on their upper surfaces and as the lay moves in toward the heddles the teeth b2 b21 catch against spring-hooks d2 d, and a quarter-revolu tion (more or less, according to the number of teeth) is imparted to eaeh of the cam-disks a2 1.21. By this motion the cams c2 021 on the surfaces of the camdisks are brought in contact with shoulders on the under side of the drivers t t', and the drivers are forced back against the action of the springs w' fw', and on the next stroke of the lay the driver previously set is released and allowed to impart to the sliding block an impulse which causes the shuttle to ily from one and of the shuttle-race to the other. At the beginning of the operation the cam-disks a2 a21 are placed in such a position that While one of the drivers is being set the other is released, and vice versa, so that on each forward stroke of the lay one of the drivers is in the proper position to propel the shuttle.

It is obvious that the number of teeth on the peripheries of the cam-disks and the number of cams on their surfaces may be varied without altering the result, and we do not wish to confine ourselves in this respect to the precise arrangement shown in the drawings.

By this construction of ,the loom the operator is enabled to produce all the requisite motions of the loom by imparting to the lay an oscillating motion, for it will be readily understood that the let-oft' motion can be governed by the motion of the lay in any of the well- -known methods.

We claim as new Iand desire to secure by Letters Patent- 1. The drivers tt and cam-disks a2 a, in combination with the lay L and with the shuttle of a loom, constructed and operating substantially as herein described.

2. The method herein described of producing the motion of the heddles and that of the shuttle by the action of the batten, as and for the purpose set forth.

JOHN SEAMAN. WILLIAM Y. HENDERSON.

Witnesses:

M. H. HARMAN, A. C. S'rrLs.

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