US400159A

US400159A - atchison

Info

Publication number: US400159A
Authority: US
Publication date: 1889-03-26
Anticipated expiration: 1906-03-26

Description

(No Model.) I 2 SheetS- -Sheet 1. G. M. ATOHISON.

WEFT STOP MECHANISM FOR LOOMS. No. 400.159. Patented Mar. 26, 1889.

N1 PETERS. Phololilhognpher. Wuhmgtou. D. C.

(No Model.) 2 Sheets-Sheet 2.

- G. M. ATGHISON.

WEFT STOP MECHANISM FOR LOOMS. No. 400,159. Patented Mar. 26 1889.

mumnu UNITED STATES ATENT OFFICE.

GrEORGrE M. ATCI'IISON, OF \VEST TROY, NE\V YORK, ASSIGNOR OF ONE-HALF TO JOHN PICKEN, OF SAME PLACE. I

WEFT STOP MECHANISM FOR LOOMS.

SPECIFICATION forming part of Letters Patent No. 400,159, dated March 26, 1889.

Application filed January 3, 1889. Serial No. 295,312. (No model.)

To aZZ whom it may concern:

Be it known that I, GEORGE M. ATCHISON, a resident of \Vest Troy, in the county of Albany and State of New York, have invented certain new and useful Improvements in Veft Stop Mechanisms for Looms; and I do hereby declare that the following is a full, clear, and exact description of the invention that will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

Similar letters refer to similar parts in the several figures therein.

My invention relates to improvements in weft stop-motion for looms; and it consists of the novel construction and combination of parts hereinafter described, and pointed out in the claim.

Figure 1 of the drawings is a view in front elevation of a portion of the breast-beam and frame, showing a portion of the shipping mechanism. Fig. 2 is a vertical cross-section taken at broken line so a: in Fig. 1, showing partly in dotted lines the frame and lay and the stop-motion mechanism in the relative positions occupied while the loom is at work. Fig. 3 is a view similar to that seen in Fig. 1, showing the relative position of the parts when the belt has been shipped to the idlepulley. Fig. 4 is a View similar to that seen in Fig. 2, showing the relative position of the parts after they have actuated the belt-shipper. Fig. 5 is a view in side elevation of the cam-rammer detached. Fig. 6 is a view in front elevation of the rammer-trip detached. Fig. 7 is a plan view of the parts shown in Figs. 2 and 4 occupying the relative position shown in Fig. 2.

I have only shown such parts of the loom as are necessary to aproper understanding of my improved mechanism for stopping the loom when the Weft breaks or fails to be properly thrown.

A is the breast-beam, and A a portion of the frame of the loom."

A is the lay supported and actuated in any known manner, as by lance A crank-wheel A and pitman A" (Shown by dotted lines in Fig. 2.) T

i The lay is provided with a transverse slot, A, adapted to receive the fingers 13, projecting from the lever-arm B. The fingers and arm together form a lever of the third class, fulcrumed at one end upon the pivot B passing through the ears B projecting from a casting, B secured to the lay, as by screws 1 Power is applied to the lever through the trip B, one end of which is provided with ears B pivoted to the lever intermediately of its ends, while the other end, terminating in a head, 13 is movable in a slideway formed in the arm 15*, projecting from the casting.

Secured to the breast-beam is an anglearm, 0, adapted to support the rammer C, which consists of a rod or bar of iron provided with a slot, 0 extending longitudinally of the bar and in a direction diagonal thereto. One end of the rammer is provided with a guiding-slideway in the vertical arm J and terminates in a head, 0. The other end of the rammer is supported and guided by a pin, C passed through the ears C on the horizontal arm 0 and the slot C The horizontal arm is provided with a slot, f, adapted to receive the rammer, as shown in Fig. '7, and indicated by dotted lines in Fig. 4c. The extreme end of the horizontal arm is provided with a block, 0 having an inclined slideway, C The breast-beam also supports a cam-lever, D, secured thereto by the pivot D. The head of the rammer and cam are relatively so situated that the former, when energized, will actuate the arm I) of the camleve r, while the arm D is made thereby to engage with a stop, D, fixed upon the slide-bar D and move the belt-shipper F from fixed pulley F to loose pulley F, as indicated by dotted lines in Fig. 7 and shown by solid The operation of the device is as follows: As the lay moves forward from the position shown in Fig. 2 to that shown in Fig. 4, the the trip B slides down the incline C until the fingers I3 strike the yarn, as shown by the upper dotted lines in Fig. 4-. the trip up to a level justabove the contiguous end of the rammer, and it rides over the same without contact with it. \Vhen the lay is carried back to the position shown in Fig. 2, the trip slides up the incline C thereby lifting the lingers from the lay to the position shown by the solid lines in Fig. 2, to permit the shuttle to move freelybetween the fingers and the bed platc A of the lay; but if from any cause the weft-yarn G should break or miss being properly thrown upon the lay across the slot A, then the trip would slide down the incline 0 until the ends of the fingers reached the bottom of slot A, or the position shown by the lower dotted lines in Fig. 4:, which would permit the head of the trip to fall to the level of the contiguous end of the ram mer and engage with the same to cause it to partake of the forward movement of the lay, causing it to move from the position shown in Fig. 2 to thatshown in Fig. -.t, and from the position shown by the solid lines in Fig. 7 to that shown by the dotted lines in the same figure, thereby acting through cam-leverD and stop Dto ship the belt from the fixed to the loose pulley and stop the loom. The slot in the rammer is so located and shaped that when the rammer has been carried far enough to ship the belt it drops down out of. reach of the trip, and the latter, after breaking its engagement therewith, is [free to travel any desired distance beyond the end of the rammer without any influence upon it, as shown in Fig. 1311110 The yarn holds higher portion of the slot sliding down to a level with the supporting-pin, (1"; lhe rammer, cam-lever, and shipping slide-rod are forced back into the position shown in Fig. 2 by thehand-leverD when the loom is started again, after being automatically stopped by my improved mechanism.

I am thus able with simple and easily-constructed mechanism, which can be easily attached to the various forms of looms now in use, to positively stop the 100111 whenever the weft breaks or is unable to prevent the fingers from falling into the slot A;

I make no use of springs and secure positive movements of parts which are easily operated and not likely to get out of order.

\Vhat I claim as new, and desire to secure by Letters Patent, is-

In a loom, the combination, with a ship ping mechanism, of the lay provided with a cross-slot, fingers B, having one end pivotally secured to the lay, and the other ends movable in and out of the cross-slot, trip 3, pivotally secured to the fingers intermediate] y of their ends and vertically movable in a slideway secured to the lay, an inclined slideway, C, for the trip, rammer (1 having a diagonal slot and supported at one end by a pin pass ing through such slot, and a rammer engaging lever-cam pivotall y secured to the breastbeam, and a cam-engaging stop fixed upon the shipper-actuating slide-rod, sul'lstantiall y as described.

In testimony whereof I have hereunto set my hand this 20th day of December, 1888.

GEORGE M. ATlUl'lISON Witnesses:

GEo. A. HosHER, \V. II. IIOLLISJER, Jr.