US336683A - Hoeace wymak - Google Patents

Description

(No Model.)

H. WYMAN.

SHEDDING MECHANISM FOR LOOMS.

No. 336,683. Patented Feb. 23, 1886.

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U ITED STATES PATENT OFFICE.

HORACE WYMAN, OF \VORGESTER, MASSACHUSETTS, ASSIGNOE TO GEORGE CROMPTON, OF SAME PLACE.

SHEDDING MECHANISM FOR LOOMS.

SPECIFICATIONforming part of Letters Patent No. 336,683, dated February 23,1886.

Application filed January 22, 1883. Serial No. 82,354. (No model.)

To aZZ whom it may concern:

Be it known that I, HORACE WYMAN, of the city and county of Worcester, State of Massachusetts, have invented an Improvement in Shedding Mechanism for Looms, of which the following description, in connection with the accompanying drawings, is a specificat-ion, like letters on the drawings representing like parts.

This invention relates to the class of loom represented in United States Patent N 0. 217,589, July 15, 1879, to which reference may be had, and has for its object improvements in means for operating the hooked jacks which I 5 are engaged by the lifters.

In the patent referred to the hooked jacks are slotted to receive through them certain rods having collars, which, as the rods are lifted by levers actuated by the pattern surface or chain, operate to lift the said hooked jacks,

there being one rod and lever for each jack of the double series of jacks.

In United States Patent No. 243,361- the slots in the hooked jacks are omitted, and the 2 5 jacks are made thin, and each jack of each series is directly operated by one lever of one of two series of levers, those levers of the lower set being acted upon by the pattern chain or surface, while those of the upper set 0 are moved by rods arranged between them and the lower set of levers.

In this my present invention the hooked jacks in the lowermost series of hooked jacks are lifted by levers substantially as in the 5 patent last referred to; but I have dispensed with one of the sets of levers therein shown, and have provided wires or rods lifted directly by the levers resting upon the pattern chain or surface, the upper ends of the said rods hav- 0 ing flanges or collars to support the under sides of the hooked jacks of the upper series of hooked jacks, the said flanges or collars being larger than the spaces in the grid through which the hooked jacks reciprocate, so that 5 the rods are held in place by the grid.

Figure 1 represents in vertical section portion of a loom sufficient, when taken in con-' nection with the patents referred to, to enable one conversant therewith to understand my present invention. Fig. 2 is a section of Fig. l on the dotted line w as. Fig. 3 is a detail of one end of one of the connectors, and Fig. 4 a detail in top view of the rear end of one of the levers for moving the hooked jacks.

In the drawings I have shown but one 5 5 hooked jack of each series and the devices for moving them. The levers x, connectors f, stops 23 24, lifters t 8 which also act at times to let the harness-lever connected with them descend, and the shaft 0 for moving the pat- 6o tern surface or chain d, are as in the patent No. 217,589, referred to, wherein the like parts are designated by like letters, and the parts referred to will in practice be actuated by devices such as shown in the said patent. 6

The hooked jacks d" of the upper series of jacks and the hooked jacks e of the lower series of jacks are the same as the hooked jacks on the patent last referred to, except that they are not slotted, but are made nar- 0 row. Each jack is pivoted to a connector, f

Each lever a, pivoted at a and acted upon by the pattern surface or chain d is provided at its front end with a toe, 2, which acts directly against the under side of a hooked jack, 7 5 e, to lift it, and, as herein shown, the said lever is also provided with a recess or socket made in an ear, 3, to receive the lower end of a rod, 1), extended upward, and provided with a flange or collar, 1), on which rests the under 30 side of the upper hooked jack, d. The hooked jacks e d are extended forward, each through and guided in a space or slot in one of the grids c or 0 The flange or collar 1) of the rod 12 is arranged at the rear of the upright parts or bars of the grid 0, and, the said head being larger than the space in the grid through which the jack d is reciprocated. is held in place by the grid, so that it cannot be drawn or moved forward with the jack, 0 and it cannot be moved backward with the jack because of the bottom bar, 4.

By moving the jack d directly by a rod resting on a lever acted upon directly by the pattern-surfacel am enabled to dispense with 9 5 the upper set of levers shown in Patent No. 243,361, referred to.

The rubbing of the split ends of the connectors f against the stops 24 25 as the said connectors are vibrated soon wears the said connectors away so as to permit the rear ends of the hooked jacks to strike against the said stops, thus interfering with their easy movement. To obviate this I have provided the connectors at each end with an enlargement, (1 (shown in detail, Fig. 3,) which comes in contact with the said stops and receives the Wear, thus increasing the durability of the apparatus. The lever a might be divided vertically in the direction of its length, thus making two levers side by side, one of which should retain the toe 2 and the other the recessed ear 3 without departing from my invention, one pattern-pin operating both levers.

1. The lever, the pattern surface, the hooked jack 6, resting on the said lever, the connector, the hooked jack d, and the flanged rod to support the latter jack, combined with a harness-lever attached to the connector, and

HORACE VVYMAN.

\Vitnesses:

J. B. SYME, J. A. \VARE.

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