US283289A - Stopping mechanism for looms - Google Patents

Description

(No Model.)

T. W. SHARKEY.

STOPPING MECHANISM FOR LOOMS,

Patented Aug. 14, 1883.

To all whom it may concern:

Be it known that I, THOMAS WV. SHARKEY, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented oer-- tain newand useful Improvements in Stopping Mechanism for Looms;- and I do hereby declare the following to bea full, clear, and exact description of the invention, reference being had to the accompanying drawings, whichformpartofthisspecification,inwhich as n l Figurelis a side elevation of a loom. Fig. 2 is a detail plan of a portion thereof. Fig. 3 is a front view of aportion thereof; and Figs. 1514:, 5, 6, and7 are detail views of certain parts.

My invention has for its object the prevention of smashes and breaking of shuttles in weaving, owing to the lathe striking against a shuttle remaining in the shed when it should be in the box. I

My'mprovements consist in the peculiar construction and combination of parts, hereinafter fully set forth, whereby if a shuttle remain in the shed at the mouth of one of the shuttle-boxes when it should be in one of the shuttle-boxes it will be pushed by the lathe against one of the temples, forcing the latter forwardly, so as to release certain mechanism connected with the knockoff lever, thus causing the latter to be moved and the loom instantly stopped before any damage can-be done. i 7

Referring to the accompanying drawings, A designates the frame of a loom, and B the breast-beam. O is the lathe; D, a temple, and E the knockbff lever whereby the loom is started and stopped, the lever E beingconnected to the belt-shifter E by means of the lever E and rock-shaft These parts are of the ordinary construction, and in themselves are not claimed as my invention.

Frepresents as'haft or rod sustained in bearings ff, made fast to the inner or back side of the breast-beam, so that said shaft or rod will be capable of being rocked on its longitudinal axis therein. This shaft has two arms or projections, f f, one at each end, which are in line, respectively, with the slide-rods d of the temples D. Said slide-rods have-each a downwardly projecting stud, (1, against which the lathe strikes, or which it meets in SPECIFICATION forming part of Letters Patent No. 283,289, dated 7 Application filed February 5, 1883.

PATENT OFFICE.

THOMAS WV. SHARKEY, OF PHILADELPHIA, PENNSYLVANIA.

STOPPING MECHANISM FOR LOOMS.

August 14, 1883,

(No model) beating up the woof, thus imparting longitudinal movement to the slide-rods, which ordinarily is very slight. Should, however, a shuttle fail to fully enter thebox (either from being thrown with insufficient force, or because of another shuttlebeing in the box at the wrong time) and come to' a state of rest between the temple and the lathe, the latterin beating up will'force the shuttle against the end of the temple, pressing the latter forwardly until its projection d meets one of the arms f and causes the shaft F to rock in its bearings.

Fixed on the said shaft is a depending arm, G, having a latch-head or shoulder, g, which engages with another head or shoulder, h, on a latch, H, connected at its opposite end with a spring, H, which spring tends constantly to draw said latch H downwardly, or exerts draft thereon.

Attached to the latch H is a strap, I, which passes over a roller, t, and has its opposite end connected with a hook, K, sustained on the lathe and in engagement with the head 1 of a bar, L. The latter is jointed at Z to a bar, M, which is pivotedto one arm, n, of abellcrank lever, N, whose other arm, n, passes in front of the knock-off lever E. When, therefore, a shuttle remains in the shed, as already suggested, and is forced by the lathe against the temple end, causing the shaft F to be rocked, the latch or arm G is thrown out of engagement with the latch H. The spring H now draws the latter down, causing a pull on the strap I, which draws the hook K away from the head of the bar L. The latter now falls, moving the bar M and bell-crank N, the latter unshipping the knock-offlever E and causing the loom to stop, thereby avoiding a smash or breakage of a shuttle. The rod or shaft F extends across the loom, and has, as already stated, an arm, f, at each end, one for each temple. Hence, no matter on which side of the loom the dwell of a shuttle in the shed (when it should be in the box) occurs, said rod or shaft is rocked and the loom instantly stopped before any damage can be done.

WVhat I claim as my invention is- 1. The combination, with the lathe G and temples D, of a rod or rock-shaft, F, having arms f in line with the temples, the knockoff lever, and intermediate mechanism, sub- IOO stantially as described, between the shaft F and knock-off lever, whereby when a shuttle remains in the shed the loom is stopped, substantially as shown and set forth.

5 2. The combination, with the lathe, the

temples D, having projections d, and the rockshaft F, having arms f f, and latch G, of the latch H, spring H, strap I, the knock-off lever E, and means, substantially as described,

IO operated by said strap for effecting the release of said lever, whereby, when one of said temples is moved by pressure of a shuttle against it, said latches are disengaged and the spring caused to exert draft on the strap to 15 stop the loom, substantially as set forth.

3. The combination, with the lathe C, temples D, and knock-off lever E, of rock-shaft F, having arms f f, latches G H, spring H, strap I, hook K, bar L, lever N, andbar M, said parts being constructed and arranged substan- 2o tially as described, whereby the loom will be stopped when a shuttle remains in the shed between the lathe and a temple, as set forth.

In testimony that I claim the foregoing I have hereunto set my hand this 29th day of 25 January, 1883.

THOMAS W. SHARKEY,

Witnesses:

WILL H. POWELL, FRANK B. BIRCH.

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