US32123A - Improvement in looms - Google Patents

Description

G. ORYOMPTON. POWER LOOM.

No. 32,123. PatentedApr. 23, 1861.

I WITNESSES:

v I v 4 E i mvnnOR:

UNITED STATES PATENT OFFICE.

GEORGE mionr'ro'n, or WORCESTER, M AssAcnUsET'irs.

IMPROVEMENT IN LOOMS.

Specification forming part of Letters Patent No. 32,123, dated April 23, 1861.

To all whom it may concern.-

Be it known that I, GEORGE CROMPTON, of WVorcester, State of Massachusettahave invented a certain new. and useful Improvementin Power-Looms; and Ido hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, making part of this specification, in which- Figure 1 is a front elevation of a loom with my improvement applied. Fig. 2 is an end elevation, and Fig. 3 a plan, of the same.

The same letters indicate like parts in all the figures.

My invention relates to the motion which drives the picker-staff andamethod of corn trolling the action of the same.

In plain, weaving, or where onlyone shuttle is used, the picker-st'aifs are actuated alternately by cams or their equivalents, so arranged on the cam-shaft of the loom. In looms having drop-boxes at each end of the .lathe the uncertainty from pick 'topick from which side the shuttle should be driven led.

to the'plan of operating both picker-staffs si- '1nultaneously, either drop-box then bringing a shuttle even with the race would be discharged, the picker in the empty box end returning in season for the entrance of the shuttle. I This is the arrangement now in Its wear and tear on the pick-.

govern the picking on each side of the loomby the presence and absence of the shuttle. \Vhen the shuttle-box binder by the presence of the shuttle operates the protector-rod, it in turn disconnects the picking at the opposite or empty box'end, whose binder has similar control-over the'picking at the other end, each shuttle-box having an independent protector-rod, as I shall now proceed to'describe.

In the accompanying drawings, A represents the lathe, BB the loom-sides, C and D the gearing, the loom being constructed with the ordinary drop-box apparatus well known and in common use among weavers. The drawings no not represent the well-known chain for determining the action of the pawl which is used to operate the tappet-wheels.

E is a tappet-wheel attached to a ratchetwheel F inthe usual manner, which is pushed forward onetooth by pawl G by means of .the cam H on the shaft I, and thereby depresses the lever J and lifts at theother end by the vertical rodK the series of shuttle-box compartments L' and brings the lower box M level with the race of the lathe R. The same action of the tappet-shaft by a tappet at' the opposite end by a duplicate arrangementto that abovede'scribed lowers the series of shuttle-box compartments ,N and. brings the box 0 in a line with the race. This box is empty, while the: box M at the other end contains a shuttle Q, which presses out the binder R, which in'turn forces the protector-finger S, attached to the horizontal rod T, and raises the arm P attached to it, passed under ant 'necting-link U lifts the catch V from connection with the lip on the catch-piece W. The box 0 containing no'shuttle, the binder G being in its normal conditiomthe protectorrod W and the finger F do not raise the catch out of contact with the catch-piece X. This catch-piece, as well as its duplicate \V, is keyed fast to its respective shaft. The shortv and long arms Y Y are cast and attached to a common hub, which is loose on the shaft A. The shoe B is keyed fast to the shaft. The time for picking having arrived, the roller 0 in the double arm-D, by the movement of the main shaft E, strikes the shoe B, which rocks the shaft A and oscillates the catch-piece X, and by the shoulder or lip comes in contact with the catch K. This being attached to short arm Y is driven in the direction of the arrow. The long arm Y, being connected to the same, is propelled in the same direction, and by the connection I at its extremity extending to the picker-staff II' propels at the same time the staff and the picker-stafi, by a spring at its foot, is returned to the end of the lathe and draws by .the connection the long and short arms Y Y to their original positions. The catch-piece at right angles with the lathe, andby the con picker, and the shuttle is discharged. The

is also restored to its first position by the spring J. Simultaneously with the operation above described the shaft L has made the same movement. Rocking freely through the hub of the armsM M and oscillating the catchpieee W, its shoulder or lip passes by without engaging the catch, the short arm to which it is attached and the long arm remain stationat", as does alsothe picker-staff N. The catch-piece XV and the picker-staff are then returned to their first positions, like their counterparts, as above described. The next movement of the tappet-shaft will bring the boxes 0, containing ashuttle, and the empty box P into a line with the race. The action of the protecting-fingers and the position of the catches will then be reversed from that of the preceding pick, the picker-stat]? 1V being driven when the rocker strikes the. shoe Q, the catch being engaged by the shoulder on the catch-piece W, while, the catch being disengaged from the shoulder on the catchpiece X, its respective staff will remain stationary.

S is a dart'or dagger, which is usually em.- ployed forliberating the shipper. \Vhen there is no shuttle in either box, the arms '1" and U are raised, which allow it to perform this office.

It will be perceived that a shuttlebox containing a shuttle, by the action of its respective protector-rod,- renders the picker-statf at the opposite end inoperative, and that it by accident a shuttle should be in each box on a line with the race both staifs would be silent, and consequently avoid a collision, and the picking of them will continue suspended for any indefinite number of picks until one of the shuttles is removed, when the remaining one will be driven by the action of the start, the one at the other end being silent.

Instead of controlling the picking at each end by the action of the binders of the shuttle-boxes at the opposite ends, each box might govern the picking at its respective side and the same result would be obtained, excepting in the case where two shuttles were opposed,

when both picker-staffs would operate and both shuttles would meet, to the manifest injury of the warp. I therefore consider the plan described the best. There are various ways of connecting and disconnecting the cam movement from the pieker-staffs-from that of the catch and catch-piece above described, and it might be found necessary to do so perhaps in applying to the many kinds of picking motions. My invention may be applied to drop-boxes. as herein.- described, to rotary and horizontal sliding boxes, or to a series of boxes working upon the are of a circle; but so long as the action of the shuttle by its exit from or entrance into a box or by the presence or absence of a shuttle in one orboth-boxes, when brou'ghtin a line with the race, does by any instrnmentality engage or disengage the picking mechanism with or from one or both'the picker-staffs, the essential and fundamental principle of my invention is preserved.

Having thus fully described myinvention, what I desire to claim, and secure by Letters Patent, is-

Controlling the operation-oh the pickerstaffs, substantially as and for the purpose specified.

GEORGE CROMPTON.

Witnesses:

ANDRE W WILLI, HORACE WYMAN.

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