US86735A - Improvement in stopping-mechanism for looms - Google Patents

Description

Il. PETERS, PHOTD-UTKDGRAFHER. WASHINGTON. D.

eine

t es t GEORGE CROMPTON, OF wvORC'ES'l'ER, MASSACHUSETTS.

Letters Patent No. 86,735, lated .Feb/flurry 9, 1869.

IMPROVEMENTA IN STOPPING-MECHANISM PO-R LOOMS.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom it 'ma/y conce/rn:

Be it known that I, GEORGE CnoMrrroN, of the city of Worcester, in the State of Massachusetts, have invented certain new and u'seful Mechanism for Stopping the Motion of Looms, when twov shuttle-boxes, upon opposite sides of 'the race, and opposite each other, both contain shuttles; and that the following, taken in connection with the drawings, is a full, clear, and exact description thereof.

In thedrawings- Figure l is a front elevation of' a my improvements;

Figure 2 is a side elevation thereor;

Figure 3, an end elevation 4of shuttle-box-shifting mechanism;

Figure 4, a front'elevation of parts thereof; and

Figure 5, a plan, looking upward, ofthe throwing-oil' levers.

The improvements in mechanism for shifting shuttlc-boxes, represented in these drawings, are described in an application for apatent now pending; and in this description, such part-s only ofthe drawings are referred to, as are necessary to elucidate the invention herein specified.

This invention is of use only in looms where there are two series of shuttle-boxes, upon opposite sides 0f the lathe, both of which are shifted to bring different shuttles opposite the race, but the invention is applicable to series of boxes shifted in any known or proper manner.

The object of the apparatus invented by me, is to stop the loom whenever two shuttles happen to be opposite each other, on the line or level ofthe race, just at or before the time that the picker strikes the shuttle.

Owing to careless boxing, or carelessness inthe adjustment of the box-shifting mechanism, shuttles do sometimes occupy such relative positions.

In the drawings, two series of shnttle-boxes, upon opposite sides of the lathe, are represented at w w.

These boxes, in the form` in which my invention is represented in the drawings, slide in proper' guides attached to the latbf.

Each box is provided with a spring-binder, w w', and in front of each series of boxes is a rock-'shaft arm, c', mounted on a short-shaft, c, attached to the lathe.

To the same shaft is attached an arm, t', projecting outward from the lathe, toward the front of the loom.

There are two shafts, e, each separate and distinct from the other, and on opposite 'ends of the lathe, and each shaft has it arm, t", which is hooked at its extremity, like the keeper of a common door-latch, turned upside down. r

loom containing The arms c c bear against the binders, at or about the level of the racc, being curved (see lfig. 2) for that purpose, .and they are forced to bear against the binders by springs a a, attached to the lathe, and pressing upon the arms c' c'.

The binders slide in Contact with the arms, when either series of boxes moves, and whenever a binder is forced out by a shuttle resting in its box, then the arms-c c are forced outward, and the latches on the arms z" downward, provided the box ofwhich the binder is forced out happens to be opposite the race.

lVheu the series of boxes come to rest, prior to the shooting of a shuttle, then the shuttle about to be shot from either side, will force out a binder, and depress a latch on one side or the other of the lathe; but when two shuttles, on opposite sides of the loom, are oppo-V site each other, and both on the level of the race, then both latches will be depressed.

A In vthe-framing ofthe loom, and in front of the lathe, is pivoted a lever, a', free to swing or tuin on its pivot, or fulcrum-pin, ol.

Along lever, k k', is pivoted, at m', t.; one end of the lever n', and this last lever is jointed to another lever, o2, which lextends out through the frame, and rests against the shipping-lever p, the gist and object of the whole of the arrangement of levers being that the shipper-lever shall be thrown out of its notch, so

as to stop the loom when the long lever 7.1 is moved bodily toward the lathe, and` that the shipper-lever shall not be moved when the long lever k is merely oscilla-ted on its centre.

When one shuttle is opposite the race, and the box opposite it, on the same level, is empty to receive it, then one latch will be depressed, catch over the one endy of the long 'lever k', oscillate it as the lathe beats up, and have no elfe-ct on the shipper; but when two .shuttles are in boxes opposite each other, and both on the race-level, then both latches will be depressed, and the long lever will be moved bodily toward the lathe,

^ and the loom be stopped.

4 fied.

GEO. OROMPTON.

lVitnesse-s:

N. AUSTIN PARKS, GEO. B. PEARsoN.

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