US94401A - N-peters - Google Patents

Description

NPETERS, PHOTmLITHOQRAPNER, WASHINGTON D C itniird Stabat parte orpi.

GEORGE OROMPTON, OF WORCESTER, MASSACHUSETTS. .f

Leners Perm No. 94,401, dazed August 31, 1869.

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

To all 'whom it may concern:

Be it known that I, Gnonen CnoMProN, of Worcester, in the county of Worcester, and State of Massachusetts, have invented Improvements in Looms; and I do hereby declare that the bllowing, taken in connection witlrthe drawings which accompany and form part of this specification, is a description of my invention suicient to enable those skilled in the art to practise it. Y

My invention relates partly to thecombination and arrangement of the harness-mechanism of fancy-looms, and partly to au improved shipper-mechanism.

Th drawings represent a loom-frame in which are mounted the parts of the mechanism directly connected with my improvements.

A shows an end elevation of the loom.

B, a rear View of the harness-mechanism.

O, an elevation o f the shipper-mechanism, seen from the inside of the breast-beam.

D is a plan of the shipper-mechanism.

a denotes the frame. b, the main shaft, carrying fast and loose pulleys, c d, banded to the driving-shaft c bya belt, f.

gy denotes the harness frames, each sliding vertically between suitable guides, and each corded at top to the inner end ot' a horizontal lever, h, and at bottorn to the end of a horizontal lever, i, the outerI end of each upper lever, and outer end of each corresponding lower lever, being connected together by a vertical o`r upright jack, it, and an inclined cording, l, the jack beingjointed at its upperend directly to the upper lever, and being connected with the lower lever by the inclined cording.

Outside of the jacks is the pattern-chain or cylin der m, against the contour of which the jacks are held by the stress of the inclined cording.

Each jack has upon its outer edge a hook, n, and upon its inner edge a hook, o, the outer hooks, when the jacks are pressed outward by th'e pattern-incohanism, being carried into engagen'xent with a horizontal lifter-bar, p, and the inner hooks of jacks not so pressed outward, being 4held in position to engage with a depresser-bar, q.

For redistribution of the jacks after the shed has been 'formed by the rise and fall of the respective4 jacks, the hooks are brought into line by two long or over-hanging evener-bars or levers, fr. These levers are fulcrumed in or near the cloth-making plane, a fulcrum-plate, s, being bracketed to the. frame a, said plate and each lever having for each fulcrum-pin u, an oblongsl'ot, t, so that the fulcrum-point may be ad justed as circumstances may require.

The two evener-levers extend (respectively) over and under the upperharness-levers, and are actuated from the shaft b by cranks j and links c, (the latter jectons z extending from it, which keep it from endwise movement, by sliding against the plates in which are the guide-slots w.

It will be obvious thatas the evener-levers separate (or move away from the harness-levers after having cvened the jack-hooks for distribution by the patternmechanism) each evener will impart a coincident and corresponding movement to ther lifter or depresser with which it is connected, (thereby effecting the motion of the jacks and harness-frame connected thereto,) the evener and depresser not moving as levers, but as parallel bars, thereby dispensing with fulcruming both the eveners and the, lifter and dcpresser-bars, and at the same time producing the requisite inclination in the shed.

Instead of vfulcruming the eveners, the lifter and depresser-bars may extend out and be fulcrumed in the cloth-making plane, the cveners heilig then imilarly connected, by pairs of parallel links a: f1, to the lifter and depresser-levers, without being fulcrumed.

It is`in this organization of the lifter anddepressermechanism, in connection with the. other parts of the harness-mechanism, that this part of my invention consists.

The shipper-mechanism is as follows:

a2 denotes the shipper-lever, carrying at one end the shipper-fork b2, and connected at the other Iend .to an upright latch-bar, c, (pivoted near the bottom of the frame,) the upper end of the bar passing through a slot, d2, and resting, when the loom is operating, in a notch, c2, while, when the loom is to be thrown o', the bar is carried to the end of the slot d2. Over the breast-beam, and extending the length thereof, is a long slide-rod or bar,'fz, sliding in bearings g2, and connected, at its end adjacent to the arm c2, to the end of one arm, h,'of a bent lever, pivotcd at i2.'

Ou the inner side of the lever-arm h2 is an incline, k2, and the top of the latch-bar, when it rests in the notch e, is in the path of movement of l this incline when the arm h2y is moving toward the frame a. The outer arm,.l2, ofthe bent level', is connected bya link, m2, with a hook, n2, jointed to an arm, o2, on one end of a rocker-shaft, p", (mounted in bearings on the cnd of the frame (1,) the opposite end of the shaft carrying an arm, q2, from the end of which a pin projects into the groove of a cam, ri, fixed to the loose pulley. The hook n2 hooks at proper times over a pin, c2, pro- .n2 to reciprocate.

jeeting from the latch-bar. `When the latch-bar isl thrown out from the notch, it is carried tothe end of the slot d?, by the stress of a spring, s2, upon an arm, t2, of the latch-bar orileverfas will be readily understood, the latehlbar, in this position, keeping Ithe shipper-fork in line with the loose pulley.

The'normal position of the shipper-mechanism is I shown in the drawingsatO and D, the latch-arm being caught in its notch, and the shipper-lever holding the belt upon they fast pulley. When the attendant, standing at the opposite end of the loom, or at any point along the breast-beam, wishes to knock off A l the shipper-lever, tostop the loom, she moves the l slide-bar f2 from the shipper-mechanism, and in so doing brings the incline k2 against the latch-arm, and throws such arm from its notch@ The stress of the spring s2 throws the latch-arm down to the end of the notch, causing the arn to move the shipper-leverand effect the irnnsler ofthe belt to the loose pulley. The transfer of the belt to the loose pulley sets the cam fr in rotation, causing the shaft p2 to rock', and the hook arm, so that the hook cannot catch upon it. Vhen the loom is to be thrown on again, the attendant slides back `the slidefbarfg, the movement thereby imparted to the bent lever carrying the hook down, so

that as it moves outward it will drop over the pin, and as it moves inward will catch upon such pin and drag back the latch-arm, causing it (through movement imparted to it` through the shipper-lever) to shift the belt back againupon the fast pulley, the latch-arm The movement of the slide, however, carries the hook n? above the pin v2 on the latein' catching in the notch ez, and thus holding the belt upon the fast pulley until the attendant Wishes the loom to be again stopped. 'The position oi the mechanism, when the shipperlever is knocked o, is shown in detail at E.

It is the combination of' the long slide-bar and the incline for thus knocking oii the shipper-lever, and the arrangement of the mechanism for effecting the knocking on of the lever, that constitute the latter part of my invention. Y

I claim-'- 1. In combination with the harness-frames, hori-` zontal harness-levers, hooked jacks, inclined eording and pattern-mechanism, arranged substantially as described, the angular lifter, depresser, and eveners, when each evener (actuated by a connecting-rod from the crank-shaft, and pivoted at o1' near the cloth-making line,) is connected to and actuates its lifter or depresser, (which are not so pivoted,) having guides thereon, by

means of parallel links or pairs of links, (or when the lifterand depresse;` are so pivoted and are connected to sliding unpivoted eveners,) substantially asl described.

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