US286783A - Linge - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1.

R. S., E.,& R. COLLINGE.

SHEDDING MECHANISM FOR LOOMS.

No. 286,783. Patented Oct. 16, 1883 WITNESSES INVENTORS (No Model.) 2 Sheets sheet 2.

R. s., 3., 85' R. COLLINGE. SHEDDING MECHANISM FOR LO0M$- No. 286,783. Patented Oct. 16, 1883.

WITNESSES INVENTORS.

g ggm QWMMM I i @ZZZ? UNITED STATES PATENT OFFICE.

RICHARD SCOTT OOLLINGE, EDWARD COLLIN GE, AND ROBERT OOLLINGE,

'' OF OLDHAM, COUNTY OF LANCASTER, ENGLAND.

- I SHEDDING MECHANISM FOR LO'OMS.

SPECIFICATION forming part of Letters Patent No. 286,783, dated October 16, 1883.

Application filed July15, 1882. (No model.)

To aZZ whom, it ntay concern:

catch-levers are employed in connection with alternately rising and falling knives, such catch-levers being drawn, when required, into position to be acted upon by such knives by the action of a pattern-chain or similar mechanism, the double catch-levers being carried by or otherwise connected with the harnesslevers which work the healds, so as to shed the warp-threads in the manner required for each pick of the weft.

The object of the invention is to construct a more. simple and efficient apparatus than that hitherto employed, and which can be readily adapted to alter the position of the healds any required number of times, in order to weave any desired number of picks to the round.

Such being the nature and object of our said invention, we will now proceed to describe in detail the manner in which the same is to be or may be performed or carried into practical effect; and in order that the same may be clearly understood we have annexed hereunto two sheets of drawings illustrative thereof, and have marked the same with figures and letters of reference corresponding with those in the following explanation thereof.

Figure 1 represents in partly sectional eletion a part of the end frame of a loom with our invention shown as applied thereto; and Fig. 2 is a view of the reverse side of the apparatus, or that next to the loom-frame.

On a frame, a a, fixed to one side of the loom we mount abarrel, (consisting of a shaft, 1; b, having a stud-wheel, c c, at each end,) so as to be capable of revolving in suitable bearings, said barrel being driven by means of a pinion, d d, on the crankshaft e e of the loom, in gear with a toothed wheel, f f, on the barrel-shaft b, so as to move one face of the barits harness-lever 0 0.

rel for every pick of the loom. On this barrel works an endless chain, 9 9, consisting of rods or lags provided with bowls, pegs, or other projections, somewhat similar to those of a Dobby, the said chain being held in place by passing over a freely-revolving barrel, h 71, mounted above. Beneath the lower barrel we mount a series of long slight bars, 'i t, (one for each heald,) such bars being pivoted at one end to double catch-levers 7c is, and held up in an almost horizontal position at the other end by a series of weighted levers, ll, mounted loosely upon a rod, Z, each bar passing through a slot in its respective weighted lever. These weighted levers Z Z hold the horizontal bars 1' z" in such a position that the bowls, pegs, or projections on the pat tern-chain g g come into contact with them as the pattern-barrel revolves, and, by overcom-. ing the action of the weighted levers Z Z, cause the said bars z i to be depressed. On the under side of each of these bars is. a catch or tooth, m, which, when the bar is depressed by the pattern-chain, is caught by'a knife or rail, n, (which is constantly working to and fro,) and is pulled thereby in the direction of the arrow, Fig. 1. Each of these bars 73 i, as before mentioned, is connected to the upper arm of one of aseries of double catch-levers, k k, pivoted at the center, and each carried at one end of a long harness-lever, o 0, the other end of which is connected, in the usual manner, to one of the healds of the loom. The lower arm of each double catch-lever k k is connected by a spring, 1) p, to This spring draws the lower arm of the said catch-lever inward into a position to be engaged by the under side of a horizontal bar or knife, q q, stretching across the frame and constantly moving up and down. As this knife q q descends it pulls down all those catch-levers which are in a position to be engaged by it, and thus causes their rehorizontal bar 73 z the latter is pressed downward, 'so as to bring its tooth or projection m into position to be caught by the bar a as it oscillates, and this bar pulls the horizontal rod Min the direction of the arrow and disen- IOO raised with its respective heald. Thus it will be seen that each double catch-lever is moved at every pick of the loom either up or down, carrying with it the end of its harness-lever, and thus actuating the heald connected with said lever. On each harness-lever 0 0, near to the double catch-lever, are two projections, r r, the length of which is such that as one edge of each of the knives q q rises or falls close against one of these projections there is just sufficient room for the other edge to be caught by one end of the catch-levers '70 k, and the knife or bar q or q is thus held almost in 'a positive grip between the catch k k and the projection i, (see Fig. 1,) which insures very steady and even working of the apparatus.

The up-and-down motion of the knives q and q is effected as follows: Each knife is carried by an arm, 8 s, at each end, fixed on a shaft which is connected by levers and links to a crankpin, u, fixed in the spur-pinion d, before mentioned. On the end of the shaft carrying the upper knife, q, is an arm, t, connected by the rod t to the crank-pin a on the pinion (l, and on the same shaft is an arm, 7?, Fig. 2, connected by a link, It, to an arm, f, on the shaft carrying the lower knife, q, so that the two shafts are operated simultaneously from the same source. As this pinion d revolves with the crank-shaft it causes the knives q and q to alternately approach to and recede from each other at each revolution. This alternate approaching and receding of the knives may, however,be obtained in any other convenient manner.

The oscillation of the knife or rail 12, which acts on the horizontal bars 13 t, is caused bythe action of cams or tappets v, working in the open slots of the levers w, to which the ends of the knife or rail n are attached, the cams being keyed or otherwise fixed on a shaft driven by a spur-pinion, m, in gear'with the pattern-barrel wheel f f. The spur-pinion so (see detached views, Fig. 3) is mounted loosely on its shaft, and is provided with a pin or projection, a2, working in a slot or notch, y, on a face-plate,

z, keyed or otherwise fixed 011 the. shaft and revolving with the latter, so that when it is required to reverse the loom the pin or projection 00 moves from one end of the slot y to the other without imparting any motion to the pinion 2, thus allowing the crank-shaft to make about a quarter or one-third of a revolution backward before acting on the cam 11, and thus the rods i i are not pulled back until the loom has arrived at the required position. The reverse action takes place when the loom is again moved forward.

1 1 is a band or guard to keep the catchlevers k 7c in place at the center, and 2 2 is a roller mounted on arms pivoted to the frame, to prevent the upper catches from coming away from the knife q when being raised up, 3 3 being spiral springs, to give a certain amount of elasticity to the roller 2.

Te claim 1. The combination of knivesq q and means for operating the'same, double catch-levers k, rods 2', and devices, substantially as set forth, for reciprocating the rods as required, with a pattern-chain, driving mechanism, and harness-levers 0, having projections 1', between which and the catch-levers 7c the knives are adapted to be caught and held, substantially as set forth.

2. The combination of harness-levers 0 0, catch -levers k, carried thereby, and springs 19, with knives q q, and means, substantially as set forth, for operating the knives and controlling their engagement with the catchlevers, arms carrying a roller, 2, and springs 3, as and for the purpose described.

3. The combination of harness-levers, catchlevers k, and knives q q, and devices, substantially as described, for operating the same, with rods 2, weighted levers Z, knife n, reciprocating mechanism for said knife, and pattern-chain and driving mechanism'for acting on said rods, all substantially as set forth.

In testimony whereof we have signed our names to this specification in the presence of two subscribing witnesses.

RICHARD SCOTT GOLLINGE. EDWVARD OOLLINGE. ROBERT OOLLINGE.

Vitnesses:

GEORGE DAVIES, CHARLES DAVIES.-

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