US246714A - X x x x x - Google Patents

Description

(N0 Modgl.)

' 2 Sheetg-Sheet I. W. A. BRAMALL 81; O. R. INNES.

} TAKE-UP AND LET-OFF MECHANISM FOR LOOMS. No. 246,714. Patented Sept. 6,1881.

ATTORNEYS.

- WITNESSES: INVENTOR= m I flagwwj BY MA 'M.

(No Model.) 2 Shaw -Sheet 2. W. A. BRAMALL 8v 0. R. INNES.

TAKE-UP AND LET-OFF MECHANISM FOR LOOMS.

Patented Sept. 6, 1881.

ATTORNEYS.

50 side of the lay and extending through a slot UNITED STATES PATENT OFFIQE.

.WILLIAM A. BRAMALL AND CHARLES R. INNES, OF CHESTER, PA.

TAKE-UPAND LET-OFF'MECHANISM Foe LOQMS- SPECIFICATION forming part of Letters Patent No. 246,714, dated September 6, 18 81.

7 Application filed MarchS, 1881. (No model.)

-'To all whom it may concern:

Be it known that we, WILLIAMA. BRAMALL and CHARLES R. INNES, of Chester, in the county of Delaware and State of Pennsylvania, have invented a new and Improved Take- Up and Let-01f Mechanism forLooms, of which the following is a fnll,clear, and exact description.

The object of our invention is to operate the yarn-beam in It oms by connections from the take-up mechanism, in order to provide for letting ofl the yarn uniformly. l

Our invention consists in a sliding stand fitted for movement to and from the yarn-beam and carrying friction-rollers that are geared to the take-up mechanism. The stand rises as the yarn-beam diminishes in size, so that the friction-rollers bear constantly on the yarn.

' In the accompanying drawings, formingpart of this specification, Figure 1 is a rear elevation, partially broken, of a loom containing my improved devices. Fig. 2 is a side elevation, and Fig. 3 is a vertical cross-section, of the same;

Similar letters of reference indicate corresponding parts.

The loom shown is of ordinary construction.

a. is the yarn-beam I), the whip-roll c c, the swords of the vibrating lay or batten. d is the roller on which the cloth is wound, and e lthe take-up roller, all asusual.

The clothpasses, from breast-beam f to the cloth-roller d beneath the same, then up over roller 6, and down again to the cloth-roller. The roller 0 is sanded, so that by its revolution it draws the cloth and at the same time turns the cloth-roller and windsthe cloth thereon. On the end of take-up roller 6 is a gearwheel, g, meshing with a pinion, k, that is carried by a stud fixed on the loom-frame. On the same stud and attached to pinion his a ratchet-wheel, i, which is given a step-by-step motion by the devices next described and the take-up roller 0 thereby moved. 7

k is a lever, hung on a stud fixed on a side rail of the loom. l is a pawl, hung on lever k and resting on ratchetwheel m is a pawl,

' hung on the fulcrum of lever is and engaging with wheel '5 to prevent back movement of the same. n is an arm or tailpiece, fixed on the contact with the yarn on beam a.

in lever It. With this construction lever is vibrated ,by the lay so as to turn ratchet wheel i;

At the back of the loom, and beneath yarn on the loom-frame, and rollers 10 p,that havetheir spindles jourualedrin the forked ends of rods 0... The rollers 10 are thus sustained across the loom and between the flanges of the yarn- 6o beam.

Beneath the rollers 19 two levers, q q, are

hung on standards q, and have their shorter arms connected by a pin and slot withthe slide rods 0 to raise the 1 rods 0 and sustain rollers 12 in contact with the yarn on beam at. The free ends of levers q act by their weight to raise the stand and retain the rollers pin The free ends of the levers are made in two pieces con nected by a set-screw passing through a slot in one piece, so that the levers can be adjusted in length to vary the weight and leverage.

The spindles of rollers 12 carry gear-wheels r, that connect with an intermediate pinion, 1", that is hung on a stud between the forks of rod 0, so that the rollers shall revolve together. mechanism, fitted with aworin,s,thaten gages with one wheel, r, and carrying at its other end a bevel-pinion, t, that engages with a bevel-gear wheel t; This bevel-geart is on a shaft, a, driven by straight gearing from the spindle of take-up roller e. The shaft u is sustained by a bracket, 11, fixed on the loom-frame,on which bracket is hung a swing stud or box, 10, that sustains this end of shaft 5. The end of shaft s'beneath beam a is stepped in abracket, w, fixed on one fork of rod 0.

The operation is as follows: At each forward movement of the lay pawlc moves ratchet-wheel i the distance of one tooth or more,

and the roller 0 being thereby turned, the cloth 5 is the operating-shaft of the'let-ofi" is takenup and wound on roller d. At the 12 rise with the stand, thereby maintaining contact, andthe yarn is consequently unwound at a uniform speed and to the same extent at each movement.

It will be seen that th'econnections from the take-up to the rollers 11 are positive, so that, being once'adjusted, the motions are unvarying.

- The'mechanism can be applied to any loom for weaving any kind of goods. To regulate the movement; to the grade ot' filling, either.

coarse or fine, lever is is provided with aside armflc, on which is hung a movable weight, Z. This weight is used for moving the lever it forward when fine goods are being made, in-

plaee of the positive connection by the tailpiece or arm n. Inthat case the piece n will' be out of the slot and the'lever k behind it, so

i that as the lay moves forward the weight will cording to the adjustment of the tension of the cloth.

Having thus described ourinvention, what we claim as new. and desire to secure by Letters Patent,is-

1. In aloom,the combinatiomwith the yarnbeam, of a. sliding table provided with means for supporting and making it movable to and from said beam, the friction-rollers, the takeup mechanism, and the gearing connecting the said take-up mechanism and friction-rollers, whereby the table or stand rises as the yarn-beam diminishes in size and the rollers continue to press the yarn, as described.

2. Phe combination',in a loom,ot bevel-gearing it t, the take-up roller, shaft s,.worm s,

gearing r r, friction-'rollers p,slides o,balancing-levers q, and yarn-beam a, substantially as and for the purposes set forth. .7

WILLIAM A. BRAMALL. CHARLES. R. INNES.

, Witnesses:

JOHN RoBF't'rs, I, FRANK Imus.

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