US371299A - beooks - Google Patents

Description

(No Model.) 2 Sheets- Slmet 1. J. G. BROOKS.

SHUTTLE SUPPLYING MECHANISM FOR LOOMS.

' No.3'71,299. Patented 001:. 11, 887.

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(No Model.) r 2 Sheets-Sheet 2.

i J. a. BROOKS.

SHUTTLE SUPPLYING MECHANISM FOR LOOMS.

No. 371,299. Patented Oct. 11,1887.

UNITED STATES PATENT OFFICE.

JOHN G. BROOKS, OF PATERSON, NEW JERSEY, ASSIGNOR OF TlVO-FIFTHS TO ROBERT BLACKBURN, OF SAME PLACE.

SHUTTLE-SU PPLYING MECHANISM FOR LOOMS.

SPECIFICATION forming part of Letters Patent No. 371,299, dated October 11, 1887.

Application filed February' 19, 1887. Serial No. 228,181. (No model.)

To aZZ whom it may concern:

Be it known that I, JoHNO. BROOKS, of Paterson, in the county of Passaic and State of New Jersey, have invented a new and useful Improvement in Shuttle-Supplying Mechanism for Looms, of which the following is a specification, reference being had to the ac companying drawings. The object of this invention is to effect the IO changing of shuttles in a power-loom while it is in motion, and especially to effect the throwing out from the 1oom,without stopping it, of shuttles from which all the yarn has been expended or the yarn of which has been I 5 broken and the immediate replacement of said shuttles on the raceway by full or fresh shuttles.

The invention also provides for the replacing on the raceway by a fresh shuttle of any 0 shuttle that may be accidentally thrown out from the loom.

The improvement consists in certain novel combinations, hereinafter described and claimed, whereby the hereinabove-mentioned results are accomplished.

Figure 1 in the accompanying drawings is a front view of the lay and the shuttleboxes of a loom and all other parts thereof necessary to illustrate my invention, the framing being shown in section. Fig. 2 is a plan view of the parts of the loom ,shown in Fig. l on the same scale, showing also the breast-beam. Figs. 3 and 4: are vertical sectional views at right angles to Figs. 1 and 2, including nearly the same parts of the loom on a larger scale, and showing the parts in different positions. Figs. 5 and 6 are transverse vertical sectional views, on a still larger scale, of the lay and one shuttle-box, and showing parts of the 4.0 shuttle-changing mechanism. Fig. 7 is a back view corresponding with Figs. 5 and 6. Fig. 8 is a transverse sectional view of the other shuttle-box and the parts for throwing out.

the shuttles on the same scale as Figs. 5, 6,

5 and 7.

Similar letters of reference indicate corresponding parts inthe several figures.

A is the side framing of the loom, and A the breastbeam. O is the lay-beam, B B are the shuttle-boxes, and G O the lay-swords.

'o 3 D is tlfe crank-shaft, D rods connecting the crank with the lay, and 'E is the cam-shaft. All these parts, except the shuttle-boxes, are

-or may be like the corresponding parts of looms in common use for plain weaving. The shuttle-boxes differ from those of common looms in that one of them-viz., B in the example shownis constructed to contain several shuttles in reserve, and is furnished with means of letting the reserveshuttles down to the raceway as required, and the other one viz., B inthe example shown-is constructed to let out shuttles from which the yarn has been expended or the weft broken.

I will nowproceed to describe the shuttleboxes and their appurtenances. The box B has ahigh back, 6, in frontof which are secured two upright angle-pieces, b, for the purpose of keeping in place the reserve-shuttles s s s, which, when the loom is in operation, with the weft continuously supplied, are supported one upon another, as shown in Fig. 5, on a movable shelf or supporting plate, b which works through a slot provided for it in the back I) of the box between the angle pieces 0. These angle-pieces are set wide enough apart to just receive the shuttles lengthwise between them and lap over their ends. The ends of the weft from the reserve-shuttles so supported are all secured to a fixed pin, it, in the top of the shuttle-box B. The said movable shelf or support Z) is connected by pivots to the lower parts of two levers, b which are fast on a small rock-shaft, b, which works in hearings in small brackets 11 secured to the back b. To 8 5 the upper end of each of the said levers b is pivoted one of two fingers, b, which work through holes in the back I), and which are projected into the shuttle-box, as shown in Fig. 6, to form a second support for the upper 0 reserve-shuttles whenever the shelf b is drawn back to let thelowest one, s,of the said shuttles drop onto the raceway. One of the levers b is prolonged, as shown at in Figs. 5, 6, 7, to connect it with the swell or hinder c of the 5 shuttle-box B, for the purpose of drawing back the binder, as shown in Fig. 6, to let the lowest reserve-shuttle pass the latter in falling to the raceway when the shelf is withdrawn. The connection between the binder I00 and the lever b is slotted, as shown at 0* in Figs. 5 and 6, in order to permit the ordinary operation of the swell produced by the boxing of the shuttle.

The binder 0 may be of ordinary construction and controlled by a spring, 0, in the usual Way, as illustrated in the representation of the shuttle-box B in Fig. 8.

The shuttle-box B may be like that of an ordinary loom, except that its front d is removable, as shown in Figs. 1 and 2, but better in Fig. 8, where it is represented as capa ble of sliding up and down in guides d,secu red to the front of the lay, the object of its being removable being to allow a shuttle to be thrown out from the box in a forward direction by the binder c, as illustrated in Fig. 8, where the shuttle s is represented in the act of passing out, the front or shutter (i being shown in that view as depressed below the raceway. To facilitate the ejection of the shuttle the front of the raceway and the top of the shutter or box-front d are beveled, as shown in Fig. 8. To receive the ejected shuttle a box, F, is attached to the framing of the loom.

The ejection of the shuttles from the box B and the descent of the reserve-shuttles to the raceway from the upper part of the box B are both controlled by what are known as a weftfork and gridsuch as are commonly employed in the weft stop-motion of power-loomsthe grid g occupying the usual position on the lay atone side ofthe reed and the weft-fork, instead of being attached to a slide on the breast-beam. as in the weft stop-motion,

being fulcrumed in a small bracket, f,which is adjustably secured in the upper end of a lever, G, the fulcrum h of which, secured in a fixed bracket, h, on the framing, may be also the fulcrum of the lever H, which resembles, substantially, the lever known as the hammer lever of the weft stop-motion. This lever H is moved at every second beat of the lay by means of a cam, E, which takes the place of the cam of the ordinary weft stop-motion on the shaft E. This cam consists,simply,ofan arm secured on the shaft E and a roller carried by said arm,and it acts upon a shoe, H, on the lower arm of the lever H, for the purpose of throwing forward the upper end of the said lever as the lay is completing its forward stroke.

The weft-fork f serves as a means for connecting the upper parts of the hammer-lever and weft-fork, as shown in Fig. 3 and in dotted lines in Fig. 4; but this connection is broken every time the lay heats up after the throwing of a shuttle into the box B, because the thread then between the weft-fork and the grid depresses the rear end of the fork and disengages the hook f at the front end of the fork from the head of the hammer-lever H. The normal position of the lever G is that shown in Fig. 3 and in full outline in Fig. 4., in which position it is held by a spring, Z, against a fixed stop, Z, secured to the loomframing. The lower end of the said lever G carries a pin, 9, which works in a slot, 9, in a rod, 9 which is pivoted at g to the arm z" of a long rock-shaft, i, which extends nearly across the loom, working in bearings 6 secured to the lay-swords Gunder the lay. This rockshaft gives all the movements necessary for ejecting the shuttles from the shuttle-box B and for bringing the new ones into operative positions on the shuttle-box B; but so long as weft continues to be supplied and the lever G remains in its normal position (shown in Fig. 3 and in full outline in Fig. 4) the said rockshaft is held with its arm in the position with respect to the lay shown in Fig. 3 and in full outline in Fig. 4 by means of a spiral spring, i, (see Fig. 1,) which is coiled around itand hasone end fastened to the said rock-shalt and another to a fixed point on the lay, and the said rock-shaft does nothing but move back and forth with the lay, and the rod simply slides back and forth on the pin 9, its slot 9' being of sufficient length to permit this movement of the pin 9. Besides the arm i, the said rock shaft i also carries two other arms, i and i", of which i is connected by a rod, W, with an arm, N, on the rock-shaft Z) at the back of the shuttle-box b, and i" is connected by a rod, i with the army" of a small rock-shaft, j, (see Figs. 1, 2, and 8,) which works in bearings in brackets j, secured to the lay under the shuttle-box B. The said rock-shaft j has other arms, j which are connected with the movable front or shutter d of the shuttle-box B.

VVhilethe weft continues to besupplied from the shuttle which is at any time in operation a portion of it is laid across the grid 5 Every time the shuttle enters the box B, and as the lay beats up, the portion which lies across the grid comes against the prongsf of the weftfork and depresses the rear end thereof, and so raises the front hooked end,f thereof, as shown in Fig. 4 in full outline, so that when the notched upper end of the hammer-lever H is thrown forward by the action of the cam E on the shoe H it passes by the said hooked end f and the lever G remains undisturbed in the position shown in Fig. 3 and in full outline in Fig. 4. \Vhen, however, there fails to be any weft across the grid and there is nothing to de press the prongs f ofthe weft-fork and raise the hooked front end,f, thereof, the next time the notched upper end of the hammer-lever H is thrown forward by the action of the cam E upon the shoe H of the said lever the said end of the said lever engages with the said endf and pulls forward the weft-fork f, and with it the upper end of the lever G, as shown in dotted outline in Fig. 4, and the lower end of the said lever G is thus thrown back and caused to press its pin g against the rear end of the slot 9 of the rod 9, so that the said rod, and with it the lower end of the arm 2" ofthe rockshaft 2', will be thrown back, thus throwing up the arm 1' and throwing down the arm t of said rock-shaft.

The downward movement of the arm i, just mentioned, produces the turning of the rockshaft j and downward movement of the arm j .;\thereof, and so produces the descent of the shutter 55. The shuttle s in the shuttle-box B is then left uncovered in front, and the shut tle is left free to be pushed forward out of the box, as shown in Fig. 8, by the action of the binder 0, produced by the ordinary pressure of the binder-spring a. While this action is taking place at the shuttle box B, the upward movement of the arm 13, which is under the other shuttle-box,B, produces, through the rod W, an upward movement of the arm I) of the rock-shaft b, which turns the said rock-shaft to the position shown in Fig. 6, thus withdrawing the shelf or support I) from under the shuttle s, which had been previously above it in the box B, as shown in Figs. 1 and 5, and also drawing back the binder, so that the said shutter is free to drop onto the raceway at the bottom of said box, as shown in Fig. 6, whence it will be thrown through the shed by the next action of the picker belonging to that box. After the withdrawal of the shelf or support Z) takes place, the fingers b at the upper ends of the levers b are projected forward into the shuttlebox B under the shuttle to hold up that shuttle and any other shuttle which may be above it until the shelf or support I) enters the box again. Thisreturn-movement of the shelf 1) is produced by the action of the spring i on the rock-shaft t, which turns the said rock-shaft back to the position in which its arm is in, the position shown in bold outline in Figs. 3 and 4, as soon as the lever G is allowed to return to its normal position by the falling back of the hammer-lever. The same return-movement of the rock-shaft also causes the replacement of the front or shutter of the shuttle box B. The same operation of bringing a reserve-shuttle into the shuttle box B will take place in case of a shuttle being incidentally thrown out of the loom, as the absence of any weft between the grid and the weft-fork will cause the weftfork and the la ver G to be moved by thehammer-lever H in the manner described, and thereby produce the operation of the rock-shaft z, and through it that of the rock-shaft Z), lever b shelf b and fingers If.

It may be here mentioned that the shelf or plate b besides serving to support the reserve shuttles, serves to prevent the running shuttle from flying upwardin the shuttle-box B.

What I claim as my invention, and desire to secure by Letters Patent, is-

rock-shafts, all substantially as herein set forth.

2. The combination, with the lay, the shuttle-box B, and the movable shuttle-support 22 of the rockshaft 1), its bearings 12, levers b and arm b the rock-shaft t, its bearings i and arms i and i, the grid g, the weft-forkf audits supporting-lever G, the rods 9 and W, the hammerH and its cam E, and camshaft E, all substantially as and for the purpose herein set forth.

3. The combination, with the lay, the shuttle-box B, and the removable front or shutter d, of the rock-shaft j, its bearingsj" and arms jj the'rock-shaft 2', its bearings 77 and arms 73 i, the rodi the grid 9, the weft'fork f and its supporting-lever G, the rod 9', the hammer-lever H, cam E, and cam-shaft E, all substantially as and for the purpose herein set forth.

4. The combination of the lay, the shuttlebox B and its removable shuttle-support I), the shuttle-box B and its removable shutter d, the grid 9, the weft-forkf and its supporting-lever G, the hammer-lever H, the cam E and its shaft E, the roclrshaft If, its bearings b levers b and arms I), the rock-shaftj and arms j j, the rock shafti and its bearings '5"- and arms 2' i" i, and the rods i, g, and i *,all

substantially as and for the purpose herein described.

JOHN G. BROOKS.

Vfitnesses:

FREDK. HAYNES, G. E. LUNDGREN.

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