US788168A - Stop-motion for cloth-take-up rolls. - Google Patents

Description

No. 788,168. PATENTED APR. 25, 1905. P. ODONNELL.

STOP MOTION FOR CLOTH TAKE-UP ROLLS.

APPLICATION FILED APR. 25, 1903.

UNHED Patented April 25, 1905.

ATENT Grrice.

FELIX ODONNELL, OF PAIYIUGICICII, RIIODE ISLAND, ASSIGNOR OF ONE- HAIIF TO SUSAN A. BROWN, OF lr-UVIUCIUC'I, RI'IOUIG ISLANI).

STOP-MOTION FOR CLOTH'-TAKE-UP ROLLS.

SPECIFICATION forming part of Letters Patent No. 788,168, dated April 25, 1905.

Application filed April 25. 1903. Serial No. 154,257.

I?) (IN lr/m'nt if 11mg (on/(tern:

Be it known that I, FELIX ODoNNELL, a 1

resident of the city of Providence, in the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in \Varp Stop-Motions;

o hereby declare that the following is is fully explained in this specification and illustrated in the accompanying drawings.

Figure l is a sectional side elevation showing the cloth-take-np mechanism and my connection between the weft-feeler and the pawl on the take-up roll. Fig. 2 is a erspective view showing my mechanism to e operated in connection with the loom stop-motion to stop the take-up roll. Fig. 3 is a modification showing my device connected direct to the sliding weft-feeler plate and arranged to be operated independent of the ordinary loom stop-motion.

Referring to the drawings, A is the loomframe, and B the breast-beam fixed thereon.

C the cloth-take-up roll, which is driven in the manner well known to those skilled in the art through the sandroll D, gear E, pinion F, and ratchet-wheel G, all of which are actuated by the engagement of the drivingpawl i with the ratchet-wheel G. This pawl is operated to move vertically by its connection with the lever V, which lever is held to be raised and lowered by the rotating cam S on the cam-shaft J. This ratchet-wheel G is held to move back and forth with the reciprocating pawl unless prevented from its backward movement by the engagement of pawl II with the teeth of the wheel to hold it still while pawl I goes down for another tooth,

by which the wheel is fed ahead on the next upstroke of this pawl i. This pawl is pivoted to the frame at I and has an upwardlyextending arm in, with which my new device comes in contact to raise the pawl. 'Iheguideplate (1 is secured to the top of the breastbcam between the woven cloth and the end frame. A plate d is fitted to slide in the recess in said guide-plate. A weft-fork 7L is held on a pin in the inner end of the sliding plate (1, so that the weft-tinead (I from the shuttle to the cloth will come in contact with the lower part 1' of the fork and tip the back end up when the lay comes forward to beat up the lilling.

A lever V is pivoted at one end to the frame on a stud I, with its free end resting on the cam S. This lever V has an arm U extending up with its upper end in the recess of the sliding plated in position to strike against the projection h on the end of the weft-fork lever h when it is not raised out of the path of this reciprocating lever by the fork catching against the weft-thread a as the lay comes forward. The outer end of this sliding plate (1 is grooved transversely at c to receive one end of the lever K, which lever is pivoted at its opposite end to the outer end of the frame and is for the wellknown purpose of engaging and releasing the shipper-lever L to stop the 100111 when the weft-fork fails to catch the thread a and also to be acted upon when the shuttle fails to enter the shuttlc box by mechanism not shown.

R is a lover or dog pivoted to the frame at 1-, the lower end of which engages the arm m of the pawl H, and its upper end is shown in Fig. 2 as being connected to the starting-lever K, by which it is actuated to operate on the pawl II and hold it out of engagement with the ratchetwheel G when the lever K is thrown back b either of the motions described above, thereby instantly stopping the feed of the takeup roll and warp let-o'll'.

In Fig. 13 the dog R is provided with a lateral arm or projection adapted to lit in groove 6 in the end of the fork-plate. The ship peroperating lever is provided with a finger or projection K extending across the top of the plate (1, whereby the latter is held down in place, but free to slide independent of said finger or projection. This form of my invention is designed more particularly for weft-replenishing looms, so that the warpfeed may be stopped and held at rest until the shuttle has been replenished and laying the thread again correctly before the warp will start to feed ahead.

The operation of my invention is further explained as follows: In the ordinary looms when the weft-thread runs out or breaks and the fork fails to find the thread when the lay beats up the shipper or starting lever is released in the manner described above and allowed to spring forward in the well-understood way, throwing the driving-belt from the tight to the loose pulley and stopping the loom. All of these operations are performed very quickly, but not quick enough to prevent the shuttle from being thrown several times back and forth across the lay, and the warp is fed ahead several picks before the loom is entirely stopped. This feeding ahead of the warp and the woven part of the fabric when there is no weft-thread laid to be beat up causes a thin place to be left in the cloth, to avoid which requires careful attention from the operator. By my method of connecting the weft-fork ft or the lever K to the cloth-take-up-actuating mechanism as above described the weaving of these thin places in the goods is effectually prevented. My device for accomplishing this is extremely simple and effective in its construction and operation, and it may be connected to and operated on any common loom. It has also proved itself very effective when used in connection with the weft-replenishing type of loom, in which case the modification shown in Fig. 3 is preferred, as it allows the loom to continue to run while the shuttle is being replenished, but stops the goods from feeding ahead until the shuttle is again laying the filling into the web, when the cloth automatically starts feeding ahead again.

Having thus described my invention,what I claim as new, and desire to secure by Letters Patent, is

1. A cloth-take-up mechanism comprising a take-up roll, a ratchet wheel and detentpawl for operating said roll, a weft-fork, a supporting-plate therefor, a guide in which said plate reciprocates, a shipper-operating lever having a finger extending transversely across the top face of said plate, whereby the latter is held in said guide, and a pivoted dog operated by said plate and normally engaging said detent-pawl.

2. A cloth-take-up mechanism comprising a take-up roll, a ratchet-wheel and detentpawl for operating said roll, a weft-fork, a supporting-plate therefor, a guide in which said plate reciprocates, a shipper-operating lever having a finger extending transversely across the top face of said plate, whereby the latter is held in said guide, and a pivoted. dog having a laterally extended arm engaged with said plate, said dog normally engaging said detent-pawl.

In testimony whereof I have hereunto set my hand this 24th day of April, A. D. 1903.

FELIX ODONNELL. In presence of HOWARD E. BARLOW, CHAS. P. DAY.

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