US71035A - meredith - Google Patents

Description

A. & P. P.-MEREDITH.

Hand Loom.

No. 71,035. Patented Nov. 19, 1867.

gut 12h tetra against ffire'.

A. MEREDITH AND P. P. MEREDITH, OF MAXINTUCKEE. INDIANA.

Letters Patent No. 71,035, elated November 19, 1867. I

IMPROVEMENT IN HAND-LOOMS.

an 5ttetule norm in in time gttiittt Wat ant taking that a it: an.

TO ALL WHOM IT MAY CONCERN:

Be it known that we, A. MEREDITH and P. P. MEREDITH, of Maxi'ntuckee, in the county ofMarshall, and State of Indiana, have invented anew and useful Improvement inlHand-Looms; and we 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 the same, reference being had to the accompanying drawin'gs, forming part of this specification, in which- Figure 1 is a vertical longitudinal section of a loom, taken in the line a: a, fig. 2, showing ourimproved arrangements for throwing the shuttle'and working the treadles bythe motion of the lay.

Figure 2 is a top view of the same. I

Figure 3 is a detached top view of the shuttle-thrower.

Figure 4 is a detached front view of the same.

Similar letters of reference indicate corresponding parts.

This invention relates to improvements in the construction and arrangement of a hand-loom, and consists in a device connected with the shuttle-driver in such a manner that the motion of the lay shall operate on the drivers to throw the shuttle, andalso a device connecting the treadleshaft with the lay to work the heddles. By the application of these devices the operation, of a hand-loom is rendered easy and eifective.

A A represent the frame of an ordinary hand-loom B the warp-beam, C the cloth-beam, D the lay, E the breast-beam, F the heddles, G the treadles, and H the treadle-cam shaft. A semicircular cam-plate, I, is pivoted centrally to a cross-beam, J, on the lay-frame, to operate as a shuttle-thrower by the moving of the lay. At the centre of the plate I is a cam-point, a, projecting above the plate, and pointing towards the treadles. On a cross-beam, K, behind the treadles, a dog, 12, is pivoted at one of its ends, the other end of the dog being threepronged, like a trident, with the middle prong c projecting beyond the side prongs c c. The dog 6 lies between two spring-bars e e which hold it in placecentrally, and in line with the cam-point a on the cam-plate I, by means of the spiral springs gg, when it is not drawn aside by the shuttle-thrower, as hereinafter described. At the sides of the cam-plate'l, two levers, h It, are pivoted near their centres on rods 7: k to the cross-beam J, which rods k in bend over to the front side of the lay, and are connected by rods H with the shuttle-driversL L, to which they give motion for throwing the shuttle. The outer ends of the. levers'h it are connected with springs m m, placed at the front side of the lay on the cross-beam J, by which springs the levers h-h are suddenly reversed in their position, to operate the drivers LL, as hereinafter described When the lay D is moved forward, then the middle'prong a of the dog 6 passes on either side of the cam-point a, and strikes against the inner end of one of the levers It, and pushes it back on the cam-plate I until a little projection orlatch,s, on the 'end, catches upon a shoulder, t, at the back part of the cam-plate I, as shown clearly in detached views, figs. 4, 5. -When the'lever k is thus pushed back at its inner end, the outer end draws the spring at connected with it, while at the same time, by means of the bent rod is and the connecting-rod l, the driver L secured to it is thrown out to the end of the bog: ready to strike theshuttle. The leveris held in this position by latch? and shoulder t, and with the spring m-contracted, until there is another movement of the lay. When the lever it is thus pushed back by the dog I), one of the short prongs 0 comes up against a guard-block, a, on one side of the cam-point a, and gives a little turn to the cam-plate I, so as to throw the cam-point a out of line with the point of the prong c on the dog 6, and also at the same time set the latch s on the shoulder t, as just described. By the next movement forward of the lay D, the prong a will pass on the opposite side of the cam=point a and push the other lever it back, as before described, till it catches by the latch 9, when at'the same moment, by the reverse action of the cam-plate I produced by the prong 0 coming in contact with the guard-block a on thatside of the cam-plate, the latch s on the lever it, previously operated upon, will. be released from the shoulder t, and the spring m will instantly reverse the position of the lever and throw forward the shuttledriver L, with which it is connected, Thus the two levers will operate alternately to move 'the drivers L L back and forth, and throw the shuttle with every movement to and fro of the lay, and with the .utmost certainty in their execution. On the treadle-cam shaft H, at the'middle, is a wheel, M, provided with four catch-bars n 'n, which catch one end of a pawl, 12, that is attached at its other end to the under side of the cross-beam J on the lay-frame,.

so that when the lay is drawn hack to strike up the weft; the cams or teppets q q, on either end of the shaft H, shall strikethe treadles G that are made fast to the heddle-bars 'U 'U, to move them both up and down to shed the warp as required. At the sides of the loom are placed vertical heddle or sash-guides N, that are grooved to receive the ends of the heddle-rods w w, which work in them. The rods 20 w are set upon standards, and are supported on spiral springs, which relieve any undue strain on the warp in shedding. 7

Having thus described our invention, what we claim as new, and desire to secure by- Letters Patent, is-' The cam-plate I: in combination with the three-pronged dog 6, the levers h h, the springs m m, and the shuttle-drivers L L, constructed, arranged, and operating substantially in the manner and for the purpose herein shown and described.

A. MEREDITH, P. P. MEREDITH-.

Witnesses:

JAMES BROOKE, ADAM New.

Images