US159986A - Improvement in stopping mechanisms for looms - Google Patents

Description

2 Sheets--Svheet il 1. BuLLoUaH, necd.' J.A.WARE,Admr.

Stopping-Mechanism for Looms. No. 159,986, .Patented Feb.16,1875.

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2 Sheets--Shetl l. BU'LLO U G H` Dec.d.

J. A. WARE, Aamr.

Stopping-Mechanism for Looms.

No. 159,986. Patented Feb.16,'1875.

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Uivrrnn 'rA'rns PATENT OFFICE.

JUSTIN A. WARE, OF WORCESTER, MASSACHUSETTS, ADMINISTRATOR OF JAMES BULLOUGH, DEGEASED; SAID ADMINISTRATOR ASSIGNOR TO GEORGE OROMPTON, OF SAME PLACE.

IMPROVEMENT IN STOPPING MECHANISMS FOR LOOMS.

Specification forming part of Letters Patent No. 159,986, dated February 16, 1875.; application tiled January 11, 1875.

CASE D.

To aZZ whom it may concern:

Be it known that JAMES BULLOUGH, deceased, late of BaXenden, near Accrington, in the county of Lancaster, England, invented Improvements in Looms for Weaving, of which the following is a specification:

This invention consists ini an improved weftstopping motion for stopping the loom when a weft-thread breaks or is absent.

In this invention weft-feelers are projected within the shed, and feel for the weft, supported by forks, which are also inserted within the shed, as hereinafter described. Ou the lay is placed a shaft, extending from one end to the other, and fixed to the shaft is a lever or arm, which carries a lever that actuates the feeler. This feeler carrying or moving lever is adapted to move the lever that actuates the shipping mechanism, and when the weft is present the shipping mechanism is left undisturbed, but when the weft is broken or absent the lever which actuates the shipping mechanism is allowed to move into position to actuate such mechanism and stop the loom.

In the drawings, Figure l represents an end view of a loom provided with my invention. Fig. 2 is an enlarged sectional detail. Fig. 3 is a partial. front view, and Fig. 4: is a View of the feeler and fork.

This invention will be clearly understood by the following particular description thereof, reference being had to the gures on the accompanying two sheets of drawings, and to the letters of reference marked thereon.

In the figures, a represents, in whole or in part, the end frame of the loom; b, the crankshaft; c, the tappet-shaft; eZ, the lay or batten; c, the lay-swords; f, the breast-beam 5 g, the reed, and h the reed-cap. The weft-feelers are vertical rods, widened and notched at the bottom, and placed at any suitable distance from the center of the warp. One of the said t'eelers is shown at a6. It is jointed at top to the front arm b2 of the lever or arm Z2 of shaft k2, mounted on the reed-cap h. The back arm c2 of the said double lever can be depressed, when required, by a stud fixed to the rod d2, connected to the lever e2, which is also jointed to the rod f2, connected to the lever g2, having a bowl in contact with a single tappet, h2, on the tappet-shaft c, the projection of the two tappets being placed in opposite directions, for enabling the two feelers a6 alternately to enter the warp at the required times. In bearings on the top of the reedcap there is a shaft, k2, extending from end to end, and to this shaft is fixed the lever Z2, jointed, by a link, m2, to the lever n2, working on a stud in a bracket fixed to the front of the reedcap h. To this lever is jointed a double lever, having a front arm, 102, with a hook, q2, at the front, and a back arm, r2, with a projecting side piece, s2, Fig. 3, in contact with the under side of the back arm e2, and the back of the lever n2 is in contact with a spring partially embedded in the front of the reed-cap. To one end of the shaft k2 is fixed another lever, u2, connected to the rod o2, jointed to one arm of the lever fw?, jointed to the rod m2, connected to the lever-y2, having a bowl in contact with a single tappet, z2, on the crank-shaft b, or a double tappet on the tappet-shaft c. Below the widened end of each weft-feeler a6 there is a fork, a3, Figs. l, 2, and 4, the shank of which passes through a groove in the front of the lay, and is held to a lever, b3, fixed to a shaft, o3, working in bearings at the bottom of the lay. To the shaft c3 is fixed another lever, d3, having a bowl, which rides on an arm, e3, having a curve or incline, f3, so that as the lay moves to and fro the lever Z3 shall move up and down, and with it the levers b3 and forks a3. 0n the breastbeam f there is a shaft, g3, carrying a lever, h3, and arm 7c3, and catch Z3, and also lever Z, in connection with the stopping or setting-on rod s and when the catch Z3, arm k3, and 1ever h3 are pulled back by the hook q2, the stopping or setting-on rod sis pushed out of its detent, and stops the loom in the usual way.

When the lay is moving to the front center, and until the beat-up is completed, the two feelers are held up out of the warp by the hollows of the tappets h2. Y

When the lay is moving Vfrom the "front to the back center the forks a3 rise as the bowls on the lever d3 ride on the curve or incline f3, in order to catch and support the weft, and the feeler opposite to the side from which `the pick is given is also held up during the backward movement of the lay; but on the side on which the pick is given the bowl on the le' ver gz is on the projection of its corresponding tappet h2, thereby enabling the rods f2 and d2 to be raised, so as to allow the front arm b2 to fall and lower the feeler into the warp to feel for the weft, and if there is a weft on the fork a3 the feeler rests upon it, and keeps down the back arm c2, and maintains the hook g2 above the catch Z3, thereby preventing the stoppage of the loom; but if there is a breakage or absence of weft, the feeler, not being supported, falls lower, and raises the back arm c2 away from the back arm r2, thereby allowing the heavier' hooked arm p2 to fall by its own gravity, so that as the lay is moving to the back center the hook q2 can seize the catch L3, pull the arm 7c3, and shift the stopping or settingon rod out of its deteut and stop the loom.

In some cases, according to the width of the fabric, only one of the weft-motions (shown in Figs. 1 and 2) is employed and placed in the center of the warp; but this motion will have to be worked at every pick by a single tappet on the crank-shaft or a double tappet on the tappet-shaft, and when the shaft on the breastbeam f, Figs. 1 and 2, requires to be stayed in the center to resist the pull, there may be xed to the front rail of the loom a bracket, n3, Fig. l, having an adjustable piece,'o3, in contact with the'cloth on the breast-beam, and a projection, p3, in contact with the inner surface of the shaft.

In the foregoing arrangement of improved weft-stopping motion, when there is a breakage or absence of weft, the stopping or settingon rod is shifted ont of its detent as the lay is going back, thereby enabling the `loom to be stopped at or near the back center; but

for causing it to be stopped with certainty` there is employed at one end of the loom a catch and catch-wheel, and parts connected with them, and placed at the other end of the -loom is a reaction-brake.

while the other part feels for the weft, substantially as described.

2. A weft-feeling device composed of two movable parts, and Working within the shed between the selvages, combined with mechanism to withdraw the feelers from the shed when the lay beats up, substantially as described.

3. The combination, with the lay, of a weftsupporting fork, adapted to be projected above the lay and among the warps, and to support the weft against the action of a feeler, adapted to feel for the weft, substantially as described.

4. The combination, with the lay, of weftfeeling devices, adapted to be projected into the shed and bear on opposite sides of the weft, substantially as described.

5. The combination, with the lay, of the movable weft-fork, notched and adapted to be projected within the shed and to support the weft, substantially as described.

6. In combination, the lay, the two movable wett-feeling devices, adapted to be projected within the shed, and t0 bear on opposite sides of the weft, and a lever for moving the shipping mechanism to stop the loom, the arm being moved by the weft-feeler when the weft is absent, substantially as described.

JUSTIN A. WARE, Administrator of J ames Bullouglb, deceased. Witnesses:

JOSEPH BROOKS, JOHN B. LYME.

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