US171598A - Improvement in loom shuttle-box mechanisms - Google Patents

Description

I. G.- CHANDLEE. LOOM-SHU'ITLE BOX-MECHANISM. I I No. 171,598. Patented Dec. 28,1875.

NPETERS, FNOTO-LITNUGRAPNER WASHINGTON, D. C,

ing into each other.

UNITED STATES:

PATENT QFFIon ISAAC. G. OHANDLEE, on PHILADELPHIA, PENNSYLVANIA.

' IMPROVEMENT IN Loom SHUTTLE-BOX MECHANISMS.

Specification forming part of Letters Patent No. 171,598., dated December 28, 1875; application filed October 16,1875.

To all whom it may concern:

Be it known that I, ISAAC G. GHANDLEE, of Philadelphia, Pennsylvania, have invented certain new and useful Improvements in Looms for Weaving Fabrics; and I do hereby declare the following to be a full, clear, and exact de scription of the same, reference being had to the accompanying drawings, making part hereof.

My invention consists of the combination,

, with the shuttle-box of a loom, of a chain having one or more of its links of greater length than theothers, and so operated by pawls, or equivalent mechanism, as .to produce an intermittent movement of the chain, for purposes which will be hereinafter set forth; also, of the combination, with a shuttlebox chain constructed as will be hereinafter described, of a gear-wheel'having pins on its side surface, a lever whose cam-head is -operated by these pins, and levers and pawls to work the chain, all arranged and operating substantially as will be hereinafter shown.

To enable others skilled in the art to make and use my invention, I will describe its construction and operation.

In the drawings, Figure 1 is a perspective view of a loom with my improvement attached; Fig. 2, a detached view of the lever and cam end operated by the pins on the gearwheel.

A is a gear-wheel gearing into a-si'milar Wheel, B; G, a crank-shaft; D, wooden links between the cranks on shaft 0 and beam E. F is the shaft of gear-wheel A G, a journal or shaft box; H, a cam which revolves with shaft F; I I, projecting pins on the slotted heel of push-lever J; 'K, a slot in the heel'of push-lever J; L, a small push-lever, the heel of which is pivoted loosely to the upright of beam E, and the end of which drops between the teeth of ratchet-wheel M, upon the shaft of which latter is secured a small cog-wheel N, which gearsinto and turns large gear-wheel O on shaft P. R 1% R are geanwheels gear- S S S areprojecting pins on theside face of gear-wheel R. T is a lever with a cam-hook end, the cam-surface being T. This lever is a rigid arm from the lifting-lever U, which is pivoted or swung at U, V is a pawl jointed or pivoted-to the end of lever U. W is the chain. X are lips upon the links for the pushlever J to bite in to move the chain.

The shuttle-boxes are connected with the pins upon the chain by means of levers, in a manner well known to those acquainted with lifting or sliding shuttle-box looms, so that when the chain passes over the bearing-box the pin, through these levers, changes the height of the shuttle-box, so that a different shuttle is thrown through the fabric. The chain is moved by the push-lever J catching in the lips X, and pushingeach link forward. The object of this invention is to automaticallyTstop the progress of the chain until, with one shuttle and one size or color of yarn, a desired continuous long and even strip of pattern is woven; then to automatically start the chain again, and, after operatingin the ordinary way,

to repeat the stoppage which I have described, principally to'weavea long plain strip between ornamental patterns or bars.

The operation of my device is as follows: Y Y are lengthened links, between each-of whose lips X and the lip of the immediatelypreceding link there is a greater space than occurs between the lips of anytwoadjacent ordinary links. They are longer than the ordinary links, so that whenv the push-lever J throws the immediately-preceding link forward, that action will not draw the lengthened link far enough to enable the end of the pushlever J to grasp its lip until said lengthened link is pushed up by the pawl V, or by other convenient means; and until this is done the end of lever J slides along the surface of the lengthened link, and, having nothing to grasp, leaves the chain stationary. h

Power is communicated to the gear-wheel A, which revolves gear-wheel Band crankshaft G. This imparts motion through links D'to the weaving-beam E, and beam E, in turn, to the pawl L. The stroke of beam E gives pawl L a somewhat long reach, and as the outer end of this pawl Ldrops and works in the teeth of ratchetwheel M, it pushes this ratchet-wheel round by an intermittent action, being drawn back and pushed forward, the latter part of its movement operating the ratchet-wheel M. A small. gear-wheel, N, on

Y are the lengthened links;

a it;

thehub of theratchet, drives the large gear:-

wheel 0 by a slowmotion, which revolves shaft]? and gears R B R. Shaft F passes through a slot, K, in the heel of push-lever J,

and carries acam, H, which works between twopins,I I, on the lever, and reciprocates The push-lever J is adapted to strike the lips X of the links of thechain W, and pushes i the chain forward a link at a time at each for ward movement,'or at each stroke of the cam H upon pin I 5 but when thelever J pushes forward thelink preceding either of the length- "ened li'nksY, it does fnot push the chain far enough to permit it to grasp the lip of the lengthened link Y, whiclilis taken by the inactive pawl V, and the chain remains at rest, and,

consequently, no change is made in the shut-p tle-box until, this lengthened link is pushed 'farl enough to allow the lever J "to take its lip,

andthis is accomplished as follows: i The IlflEt-h chine is soiadjusted thatwhen a lengthened link is reached the cam-hook lever T will have previously dropped over a pin, S; the slow" motion of gear-wheel R then gradually brings i around the next pin S,which, striking near the outer endiof the cam-surface T, slides alongthe cainhook, and lifts it until its point is reached, whichraises the Whole of leversT andU and the pawl V. This pawl V then,

fora moment, becomes the assistant; of the push leve'r J, and it pushesthe lengthened link, far, enough: forward to permit the end of i the push-lever J to take the lipof the link,

when thelip is left bare bythe dropping down of the pawl V, which latter operation isac-' coniplishedx by the pin: S passing the lower point of the cam T, which allows the cam-lever T and lever U to drop of theirown. weight,

and with them the pawl V, thereby leaving bare, as above stated, thelip X of thelengthcued. link, to be acted upon bythepush-leven J, thus starting the chain, which acts on the shuttleboxes until another lengthened link is reached, when the chain again becomes sta- ,fore any changes quires the use of but a shortchain.

tionary, and the operation ofpawl just dea 7 scribed, isrepeated. It will thusubeseen that made. a u

This deviceis specially useliilin weaving balmorals, handkerchl My invention may be applied to looms th shuttle-boxes of whi areoperated by a p tern-'wheelinsteadi hain, by simply lengthening the spaces e ween the Y catcl notches, in which the pawl bites lton tu wheel, at such intervalsas,xifa chai used, alengthened; link would occur. Itfma be used also upon arevolvingbox-loorn, lengthened links 1 maybe mounted; with like the other links, if (1 sired l Havingthus describe I claim as 118W,1&I]d.l(l681l ters Patent, is-- it ,1 a a g 1. In combinatioulv vit the shuttle-homo loom, a chain having one or more; of "its link of greater length than-t mechanism, substantial: duce an intermittent movement ofe the c 2. Incoinbination w hashnttletboxchain,

as described.

Witnesses: i

CHAS, H. RoBENo ALBERT E; ZAGHERLE.

substantially as andfor the punposes setforth,

constructed as describedgfdri vingrpawls J and 3V, gear-wheel"R,pinsS, an scam T, allar-u ranged and operating together substantially 1 seme-i QHAEDLEE, 1 u

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