US94571A - crompton - Google Patents

Description

3 Sheets-Sheet 1.

G.GROMPTON.

LOOM.

No. 94,571. Patented Sept 7, 1869.

G. OROMPTON.

v LOOM. No. 94,571. v Patented Sept. 7, 1869.

C a o OZ pl 3 Sheets-Sheet 3.

G. OROMPTON.

LOOM.

No; 94,571.. Patented Sept. 7, I869.

XOR

(limited swa 43mm (Mitre.-

Letters Patent No. 94,571, dated September 7, 1869.

IMPROVEMENT IN LO'QMS.

The Schedule referred to in these Letters Patent and makingpart of the same- To all whom it may concern Be it known that I, Gnoncn CROMPTON, of Worcester, in the county of Worcester, and State of Massachusetts, have invented Improvements in Looms; and I do hereby declare that the following, taken in connection with the drawings, which accompany and form part of this specification, is-a description of my invention, sufiicient to enable those skilled in the art to practise it.

My present invention relates in part to the organization of mechanism for working angular lifter, depressor, and evener-bars of fancy looms, and in part to a mechanism, by which the shipper-lever may be knocked off and knocked on by a treadle or footoperated lever.

The drawings represent .a loom-frame, in' which are mounted those parts of a loom-mechanism"directly connected with my improvements".

A shows the frame and mechanism, partly in end elevation and pai'tly in section.

B shows the harness-mechanism in side elevation.

0 shows a plan of the slripper-mechanism.

(t denotes the frame.

I), the crank-shaft.

c, the series of harness-frames, each suspended or strung between the inner ends oftwo horizontal levers,

d cl, turning in suitable bearings at the top and bottom of the frame, the outer ends of each two levers-being connected by a hooked jack, f, and an inclined cording, g, the stress of the inclined cording 'of each jack hearing it against the contour of the pattern chain or cylinder h.

Each hooked jack has ahook, i, on its trout edge, and a hook, it, on its opposite edge, the front hooks of those jacks not pressed inward by the pattern-mechanism lying in the path of upward movement of a reciprocating lifter-bar, l, and the rear hooks of such jacks as are pressed inward by the pattern-mechanism lying in the path-of downward movement of a reciprocating depresser-bar, 1n, the shed being formed by and in accor-dance wlth'the movement up and down by the lifter and depressor-bars of the respective jacks, according to the distribution of the jacks efi'ected by the patternmechanism, as is readily understood by persons familiar.

with the construction and operation of these looms.

After the shed is formed and the shuttle thrown,

the jacks are evened by two archer-bars, n 0, one over bearings, fixed to the frame a, and havingreciprocatin g movements applied to them from a crank, 'r, on the shaft 6.

, The crank-rod a is iointed directly to .the end of the slide-rod q, as seen at B, and fixed to this rod is an arm, t, which is connected by a link; a, to one end of a working-bearu, 0, whose other end is connected by a link, 10, man armfixed upon the other slide-rod p, motion in the opposite direction being thus imparted by the sliderod q to the slide-rod 1) up or down.

Each slide-rod has fixed to it two horizontal bars, a: parallel to the: loom-frame, the opposite ends of these bars being connected by a vertical strut, z, the two bars of each slide-rod,'and the slide-roditself and the strut connecting the outer ends of the bars, thus forming a quadrangular frame in which all these four parts are relatively stationary.

To the upper bar y of each frame the cveuer-bar 'n or o is pivoted, as seen at b,'aud to the lower bar of the outer frame the litter-lever: l is similarly pivoted, as seen at-d, and a depressor-lever, m, to the lower bar of the inner frame, as seen at f, one end of each evener-lever being connected to the lifter or deprcsser in line with it by a. link, g, while the other end of each evener is connected tonne of two arms 71?, projecting from the opposite ends of the working-beam 1;, each evener being (by this conuectionibrought from a horizontal into an inclined position, as the eveners separate, and by its connection with the lifter or depresser, imparting the same inclination thereto, so that the requisite inclination is produced in the jackhooks, as they are raised or depressed, and in the shed. Tire degree of this iuclinatiouis varied by means of a slot, 4, in each arm h, such slot enabling the jointpin of the link gto be carried nearer to or further. from the point of the working-beam.

It is in this method of eiiecting the nrovements or inclination of the lifter, depresser, or evener-levers, and of adjusting the degree of such inclination that the first part of my invention consists. g

It will be obvious that instead of jointing the eveners to the arms h, the lifter and depressor may be the members so jointed.

The shipper-mechanism-is as follows:

a denotes the shipper-fork, hung upon a rockerlever, b, and having along arm, 0, extending toward the front of the loom, as seen at A, the end of this arm being jointed to a crank-pin, d, on a. crank-wheel, c, to which is fixcda gear-pinion, f, meshing into a gear-wheel, g, fixed on a shaft, It", turning in a stationary bearing aflixed to the frame a, this shaft having on its inner end a pawlvwhecl, i, with the teeth of which a hook, ltflieugages, a spring-detaiuer pawl, P. also engaging with such teeth.

The hook it is hung on the end of one arm of a bent lever; to, whose other arm is connected by a link, a, to the inner end of a rocker-lever or frame, a, mounted on a rocker-shaft, 1;,jou-rnalled in the ends of the frame a, the outer arms of this lever or frame having fixed thereto a long foot-bar or treadle, q, preferably extending the whole length of the loom. v

\Vhen the belt is on the fast pulley, the shipper-fork and rod, and the treadle and other mechanism, are in the position .shown at A, the crank-pin being on the dead-centre.

When the belt is to be knocked off, the operator,-

standing at any position along the breast-beam, depresses the trendle with her foot, thereby forcing up the link 10, and causing the hook it to actuate the pawl-wheel i, whichtums the gear g, and the pinionin position. When the treadle is released, it is drawn up by a spring, 3, bringing the treadle and hook to their normal position, the detainer-pawl preventing reverse movement'of the pawl-wheel.

To throw on the belt again, the treadle is again depressed, the hook thereby ag'ain moves the pawl-wheel and crank-wheel, the treadlehaving just play enough to cause the crank-pin to be brought on to the opposite dead-centre, and the shipper-fork is thus moved far enough to again knock on the belt, the movement of the crank-pin from one dead-centre to the other producing endwise movement of the shipper-tbrk, just suflicient to throw the belt from pulley to pulley.

It will thus be seen that the shipper-fork is moved in each direction (to throw the-belton or oil the fast pulley) by depression of the trcadle', the treadle being automatically returned to position, (after either movement of the fork,) so that the belt may be again changed by depression thereof. by the foot of the operator.

It is-in thisshipper-mechanism, and in the details thereof, the second part of my invention consists.

It will be obvious that the crank may be operated by a hand-moved mechanism to effect the movements above set forth, devices for adjustment of the links connecting the working-beam with said levers, substantially as described.

'3. Also, in combination with the shipper-fork, the

treadle or treadle fi'ame, arranged and connected with the shipper-fork, substantially as described, to effect the shifting of the belt'in either direction, substantially as described.

4. Also, in combinationwith the shipper-rod, the crank, operated so as to shift the fork and retain it in position on or off the fast pulley, substantially as described.

5. Also, the combination of the shipper-rod, crankwheel, pawl-wheel, and pawl, pawl-lever and treadle,v

or their equivalents, connected, combined, and operated together, substantially as described.

' GEO. GROMPTON. Witnesses:

FRANCIS Goum), S. B. Kmmm.

Images