US623092A - John t - Google Patents

Description

Patented Apr. II, I899.

E5552 EEG? J. T. MEATS.

LOOM.

(Application filed Apr. 27, 1898.)

(No Model.)

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NITED STATES PATENT OFFICE.

JOHN T. MEATS, OF TAUNTON, MASSACHUSETTS, ASSIGNOR TO THE MASON MACHINE WORKS,

OF SAME PLACE.

LOQM.

SPECIFICATION forming part of Letters Application filed April 27, 1898.

To all whom it may concern:

Beit known that I, JOHN T. MEATS, of Tannton, in the county of Bristol and State of Massachusetts, have invented an Improvement in Looms, of which the following description, in connection with the accompanying drawings, is a specification, like letters and figures on the drawings representing like parts.

This invention relates to looms for weaving; and it has for its object more particularly the production of novel means for varying the appearance of the face of the cloth by causing the filling or weft to show more or less prominently.

Other features of my invention will be hereinafter fully described, and particularly pointed out in the claims.

Figure 1 is a side elevation of a loom with one embodiment of my invention applied thereto, the harness mechanism being omitted; and Fig. 2 is a partial front elevation of the loom, showing the mechanism at the lefthand side thereof.

The loom-frame A, lay A the lay-swords A, mounted on the rock-shaft A the whiproll a and a warp-beam B may be and are of usual construction, the whip-roll and warpbeam being controlled by the well-known Bartlett let-off mechanism. Briefly stated, this let-off mechanism comprises arms a for the whip-roll, attached to the rock-shaft a,

having a depending arm a with which is connected a bent rod a longitudinally movable in a fixed bearing 2 and having springs s 8*, the latter being held between an adjustable collar 3 and the perforated end of a rockerarm a A link a pivotally connects this arm with a pawl-carrier having a pawl a to operate a ratchet-wheel a on the shaft of a worm a the latter by suitable intermediate gearing'effecting the rotation of the warp-beam 13*. A collar 4 on the link a is engaged by the end of the actuator-rod a, shown in Fig. 1 as connected with the lay-sword A. p

In order to relieve the warp -threads of strain independently of the let-off motion and when the lay is beating in the weft, I have mounted an auxiliary whip roll or bar I) on Patent No. 623,092, dated April 11,1899.

Serial No. 678,939. (No model.)

on the rock-shaft a, the supporting-arms Z) having depending legs 19*, which slide in stands 6, a spring .9, surrounding the leg between the stand, and an adjustable collar 7, the bar I) acting on the warps between the lease-rods Z and the let-offer whip-roll a ubviously the auxiliary roll or bar b couldbe mounted independently of the rock-shaft a, the construction shown being used for convenience.

The augiiliary roll reduces the strain on the warp-threads at the moment of letting ofi and also when the filling is beaten in, the latter being the more important, for it softens the effect of the blow without otherwise affecting the let-0E motion. 7

By the use of the auxiliary whip-roll an increase in speed and production is made pos sible, and the quality of the cloth is much improved by virtue of the decreased number of broken warp-threads.

I have herein shown the breast-beam as a roll 0, mounted to rotate in the main frame at the front of the loom and provided with a gear 0, and between this breast beam or roll and the lay and adjacent the former I have interposed a vertically-adjustable cloth-supporting roll or bar 0 mounted instands c, which by means of bolts 0 passing through slots 0 (see dotted lines, Fig. 1) in the stands, can be raised or lowered. The face of the cloth Woven can be varied by means of this roll or bar, for when it is desired to have the filling show more prominently than the warp, or, in other words, to cover more, the roll or bar is raised. This acts to tighten the warpthreads when the filling is being beaten in, and the latter by reason of its greater slackness can be lifted by the reed-dents at the moment of beating in, to thereby cover the warp-threads. Conversely, by lowering the cloth-support c the upper warp-threads are slackened, and they are made to cover or be shown more distinctly, as is sometimes desired.

A breast-roll or rotatable breast-beam is not broadly new, and the cloth has also been wound upon such a breast-roll, but with unthe frame, herein shown as pivotally mounted satisfactory results; but so far asI am aware connection is also increased.

the use ofan auxiliary vertically-adjustable cloth-support between the breast-beam and the lay and in front of the reed is new and is one of the essential features of my invention. It is not practicable to raise or lower the breast-roll itself, because the actuating-gear thereon must be kept properly in mesh with the gear which drives it.

The cloth passes over the cloth-support e and breast-roll C, around the latter, and over a guide-roll a back of the breast-roll, and

thence directly to the cloth-winding roll D,

journaled in stands A forming a part of the loom-frame, one of said frames being shown in the drawings.

Oneof the journals, as cl, of the windingroll D is extended through the stand A and has fast thereon a friction-disk d,cooperating with a like friction-disk d loosely mounted on thejournal and having fixed to it a ratchetwheel d the friction between the surfaces (1 and d being adjusted by a suitable hand or setting-up nut 01*, screwed onto the journal, a spring 3 being preferably interposed between the nut and the ratchet-Wheel.

A pawl d is herein shown as adapted to engage and actuate the ratchet-wheel, said pawl beingmounted on an arm cl, fast on the rockshaft A ,to which the lay-swords are'attached, whereby the ratchet-Wheel and the clothwinding roll D will be rotated step by step at each beat of the lay. The friction is adjusted by means of the nut d to wind the cloth upon the roll D with the required degree of hardness, and as the diameter of the roll of cloth increases the slip of the friction As the one approximately balances the other, the cloth is wound with practically uniform hardness.

The breast beam or roll 0 is positively rotated, but entirely independently of the retation of the cloth-winding roll, and such take-up mechanism will now be described. The stand A supports the breast-r0110 and a gear a in mesh with the gear 0, fast on the breast-roll journal, while the gear 0 meshes with a pinion 0, having an attached wormgear 0 also supported on the stand, the

Wormgear engaging a worm 0 rotatable on a stud 0 carried by a bracket 0 on the inner face of the loom side A.

A ratchet-wheel e is attach ed to the Worm, and it is engaged by a tappet-pawlf, pivoted at f on an arm f fulcrumed on the stud 0 and 'at the opposite side of the ratchet-wheel a suitable detent-pawlf is mounted on the bracket 0.

'On the free end of the arm f a depending rod f is pivoted, its lower end extending loosely through a tappet-lever a herein shown as attached to the adjacent lay-sword A, a weight W being held on the rod by an adjustable collar f above the end of the tappet-lever.

When the pawl-carrier f is in the position shown, (see Fig. 2,) the weight W will act through the pawl f to turn the ratchet-wheel e as the weight descends, and through the worm e and intermediate train of gearing the breast-roll O is rotated to take up the cloth. When the weight descends far enough to bring the collarf into engagement with the tappet-lever a the latter will on the back stroke of the lay lift the rod f and its weight into the position shown in the drawings, so that the pawl-carrier and its pawl will be returned to operative position. Thus it will be seen that as the filling is beaten in by the lay the weighted pawl-rod f descends until it is again, through the collar f brought into engagement with the tappet-lever, which raises it, and so on indefinitely while the loom is running.

I have herein shown the cloth-winding roll located beneath the breast-roll and its actuating mechanism, and I have also shown a train of gears between the breast-roll and the take-up ratchet-gear; but'my invention is not restricted to such location and arrangement, as the same may be varied or rearranged without departing from the spirit and scope of my invention.

It has been found by exhaustive experiments that the less the distance between the reed and the take-up roll the less the cloth will move forward and back in the act of beating up, with a consequent reduction of friction on the warp-threads, reducing the breakage'of the latter to a minimum.

- By the construction herein shown I combine the functions of breast-beam and take-up roll in the breast-roll or rotatable beam, and I am enabled thereby to bring the take-up roll very near to the reed with all the consequent advantages as herein set forth.

By operating the take-up mechanism, as herein shown, and independently of the clothwinding roll I effect a greater elasticity in the operation of the take-up, and the cloth is woundmore uniformly, and the degree of hardness which it is desired to wind the cloth is adjusted without necessitating a change in the take-up.

Having fully described my invention, What I claim, and desire to secure by Letters Patent, is

1. In a loom, the lay, a breast-beam, and a vertically adjustable cloth support located between them, substantially as described.

2. In a loom, the lay, a breast-roll, and a vertically adjustable cloth support located between them and immediately adjacent the breast-roll, substantially as described.

3. In a loom, a breast-roll, means to positively rotate it to take up the cloth, and a vertically-adjustable cloth-support behind the breast-roll,.substantially as described.

4. In aloom, take-up mechanism, including a positively-rotated breast-roll, an adjustable cloth-support adjacent and at the rear of the and the 1easer0ds.

breast-r011, a cloth-winding i'o11,'and means In testimony whereof I have signed my to actuate it independently of' the take-up name to this specification in the presence of mechanism substantially as described. two subscribing Witnesses.

5. In a 100m, a Whip-r011, and an auxiliary l JOHN T. MEATS.

Witnesses:

JOHN OOWPER EDWARDS, AUGUSTA ELLA DEAN.

Warp-supporting roll or bar yieldingly and adjustably mounted between said Whip-r011

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