US437196A

US437196A - hattersley

Info

Publication number: US437196A
Authority: US
Publication date: 1890-09-30
Anticipated expiration: 1907-09-30

Description

(No Model.) v R. L. HATTBRSLEY & J. HILL.

SHEDDING MECHANISM FOR-LOOMS- Nb. 43?,196. Patented Sept. 30, 1890.

UNITED STATES PATENT OFFICE.

RICHARD L. HATTERSLEY AND JAMES HILL, OF KEIGHLEY, ENGLAND.

SHE, DD|NG MECHANISM FOR LOOMS.

SPECIFICATION forming part of Letters Patent No. 437,196, dated September 30, 1890. Application filed. January 7, 1890. Serial'lllo. 336,179- (No modeltl Patented in Engl n Sep em r 1833, N 1 ,8

'No. 13,859, dated September 26, 1888,) of

which the following is a full, clear, and exact description.

Our invention relates to loom shedding mechanisms of the class wherein levers having operating-catches attached to or hinged upon their extremities are mounted about their center or middle parts upon other levers for effecting the desired changes of position in the heddles, (one style or arrangement of this class of mechanism being fully described in the speci [ication of our United States Patent No. 383,465, dated May29,1888;) and our said invention consists of arranging and constructing certain parts used in connection with these said shedding mechanisms in such a manner that the object well known as lagging back (which means effectinga reversal in the direction of motion of the pattern-cylinder) may be accomplished in the said shedding mechanisms when pattern mechanisms having peg-lags, each carrying two rows or series of indicating-pegs, are employed. This object we attain by the mechanism illustrated in the accompanying drawings, in which- Figure 1 is an elevation of a shedding mechanism that may be applied to a loom in any of the well-known ways, and Fig. 2is a top view of a portion thereof, while Fig. 3 is a detail elevation, hereinafter referred to, having the frame-work omitted for the sake of clearness.

Similar letters and. figures refer to similar parts throughout the several views.

The catchesaand a, the levers b and f, the needles 8, the levers 25, pattern-cylinder u, and the three-armed lever 'v, as illustrated by the annexed drawings, are old and common and answer the same ends as do the catches 7 3 and 7 3, the levers 68 and 47, the needles 75, the levers 7 7, the pattern-cylinder 79, and the three-armed lever 15, described in our patent, No. 383,465. However, in connection with the present invention, the pattern-cylinder u is only rotated at half the rate of speed at which the cylinder 79 rotates relatively with the movements of the other parts of mechanism, forming the complete shedding mechanism in each case, respectively. To allow this retard ed movement of the pattern-cylinder u, peglags a, each having two rows orseries of indicating-pegs d, are employed in connection therewith'one to indicate upon one series of catches a, while the other indicates upon the other series a through the medium of the parts above describedthis method of using two rows or series of pegs 01 mounted upon each lag 0 being old, common, and well understood both in England and the United States.

In practice it is well known that whenever peg-lags c, with a double series of pegs cl, are employed, in order that the same should operate efficiently to produce a proper opening in the warp when weaving in a straightforward manner, it is necessary to rotate the cylinder u at a'certain time relatively with the time of movement of the draw-bars e and e, and we find that, in order to prevent the liability of the peg-lags 0 being disarranged, so as to place the catches a and a at cross-purposes when the direction of motion of the pattern-cylinder u is reversed to effect the pro cess of lagging back, as above described, it is necessary that the movements of the said cylinder ushould be kept in certain unison with those of the said draw-bars e and eas, for example, should the cylinder to be moved at the time the draw-bar e is making its forwardmovement, as, say, in the direction of the arrow gwhen performing its proper functions during the process of weaving. Wehave found that when the direct-ion of motion of the cylinder u is reversed it must be moved at the time the bar 6 is-making its backward movement, or opposite to that indicated by the said arrow 9. To effect this in accordance with this our invention, we mount the ratchetwheel h upon the cylinders shaft u. This wheel it has its teeth or peripheral ridges h so formed that the ratchet may operate it by pulling it in the direction shown by the arrow 1, While the ratchet k may operate it by pushing it in the opposite direction. These catches k and k are both mounted or hinged upon the sliding piece m, which is operated by being coupled to the lever o by means of the r0 0.

In order to place the ratchets k 70' into and out of operation, (one always being required to be out of operating position when the other is in operating position,) the cam-piecep, having double surfaces 19 and p for operating the ratehets k and k, respectively, is mounted upon the frame-Work A and may be manually operated by the operative through the medium of the rod or handle w when and as may be desired.

\Ve claim- 1. The catches a a, the needles 3, swing-levers b, levers f and t, draw-bars e e, lever v, means for coupling said lever 12 to the bars 0 e, the rod 0, the sliding piece m, the ratehets k k, the ratchet-wheel h,eylinder u, and peglags 0, having two rows or series of pegs d, in

combination, the same being arranged to 0perate substantially as specified.

2. The lever v, the rod 0, the sliding piece m, the ratchets 7c 70, the ratchet-Wheel h, and the cylinder u, in combination, the same being arranged to operate substantially as specified.

3. The ratchets 7c 70, the double cam 19 p, the handle w, and the reciprocating slidepiece on, in combination, the same being arranged to operate substantially as herein set forth.

RICI'ID. L. llA'lTERSLEY. JAMES HILL. Witnesses: SAMUEL HEY,

.ToHN WHITEHEADi