USRE4725E - Improvement in self-acting jacks for spinning - Google Patents

Description

PATRICK KEANE.

inning.

Improvement in Self-acting Jack for Sp sund lan. 30, 1872 Reis UNITED STATES PATENT OFFICE.

PATRICK KEANE, OF COHOES, NEW YORK, ASSIGNOR TO HIMSELF AND SAM- I UEL BILBROUGH,

OF SAME PLACE.

IMPRQVEMENT IN SELF-ACTING JACKS FOR SPINNING.

Specification forming part of Letters Patent No. 117,893, dated August 8, 1871; reissue No. 4,725, dated January 3U, 1872.

To all whom it may concern:

Be it known that I, PATRICK KEANE, of Coh0es,in the county of Albany and State of New York, have invented a new and useful Improvement in Self-Acting Spinning-Machines; and that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawing making' a part of this specification, in which- Figure l represents a top view of a part of a mule in dotted lines, with the portions which illustrate my invention shown in full lines. Fig'. 2 represents a side elevation of the m echan ism shown in Fig. l. Fig. 3 represents an end elevation of the same; and Fig. 4 represents, on an enlarged scale, a section taken through the line :c m of Fig. 2. A

The object ofthisinvention is to so construct, arrange, and operate certain mechanism 'in selfacting spinning-jacks as to avoid the grea-t shocks andjars they are subject to when the clutch mechanism runs in before the belt is entirely shifted from the fast to the loose pulley, as in stopping' and reversing the motion to eii'ect the backing-olf motion.

Self-actingspinning-machines, as constructed prior to my invention, were so arranged that the friction-clutch which gives the reverse motion for backing off takes hold before the belt which imparts the direct motion escapes from the drivin g-wheel, by which the two Jforces are brought into direct opposition and produce very severe jars or shocks, which, being rei peated as often as each full operation ot' the machine takes place, cause great wear and damage to the machine. I- am aware that means have been devised in self-acting mules to prevent the friction-clutch from moving too suddenly into action, and so producing jars and shocks to the machine from that cause. But my invention dii'ers from this. My object is to hold back the friction-clutch, substantially as herein described, until the belt is entirely shifted from the fast to the loose pulley', but when the clutch starts it is not impeded by any extraordinary mechanism.

To enable others skilled in the art to make and use my invention, I will proceed to dcscribe the same with reference to the drawing, in whicha represents the loose pulley; b, the fast pulley; c, the driving-belt; e, the friction-cone; and f, the belt-shifter of a self-acting spinningmachine. The carriage is caused to run out by the direct action ot the driving-belt c, and the backing ofil is effected by the friction-cone e when the driving-belt is shipped, and said cone is allowed to engage with the pulleyr g by being forced into contact with it by a spring concealed in the hub, or by other well-known means. As heretofore constructed, the. tripcatch for holding the friction-cone out of contact with the pulley g while the driving-belt was at work on the fast pulley was so connected to the belt-shifting rod j' that the cone was tripped at the instant the said rod was moved, so that the cone, being moved instantly by a spring, enga-ged the pulley g before the belt escaped from the fast pulley, whereby the two forces moving in diiit'erent directions, acting on the same shaft at one and the same time,-

produced very great damage to the machine and work, besides wasting power. For the purpose of releasing the friction-cone by the action ofthe belt-shifter, and yet not doing it until the driving-belt has had time to escape entirely from the fast pulley, I arrange a shaft, i, in a swiveled bearing, 7c, at one end, and at the other end, supported in the end of anarni, j, a bell-crank leveiycoiniected by its other arm, I, with the belt-shifter f, so that when the latter moves to throw oft' the belt it will allow the shafti supported by it to drop and be set in motion by a belt, m, Working on a shaft, a, above and around a large grooved or tlan ged pulley, o, on said shaft i, said belt being loose when shafti is up, but tightened when the pulley o is let down so as to set said pulley in motion. rlhe shai'tz' carries a tri pper, p, at that end of it which is free to swing up and down, and it also carries a grooved pulley or drum, q, from which a weight, r, is suspended by a chain, t, for turning the shaft when freed from the action of the belt m, so that the tripper p will be held against the under side of the end of the trip-catch h, or of a pin, QJ, projecting from it, until the belt-shifterfmoves and throws the end ofthe shaft t' and the pulley o down, at the same time that it pushes the belt-c toward the loose pulley. Then the pulley o will be set in motion, and turned until the tripper p comes around to the top of the pin t on the catch, and, pushing' it down, releases the frictioncone after the belt has passed entirely o'froin the fast pulley. As the backing off is done very quickly, the belt-shifter goes back again,

and frees the pulley o from the belt fm before the weight i" has been Wound up to the pulley q and allows it to fall again, returning the tripv per 79 to the under side of the pin v, ready for shown.

Having thus described my invention, what I claim is- In a self-acting` jack for spinning, the combination of adrh-*ingpulley and e friction-clutch, both acting' upon the same shaft to drive itin contrary directions at different times, a beltshipper for moving the belt from the driving to the loose pulley, and a tripping and holding mechanism7 substantially as described, interposed, between the shipper and the elutch,tl1e former being; put into operative position by the shipper at the time the belt is being` moved, for thepurpose ot'releasin g the device employed for holding` back the clutch until the belt has passed entirely off of the driving-pulley, and then releasingl it, allowingl the cones to go into action, after which the trip mechanism returns by the reverse movement ofthe shipper into l position for the next similar operation.

y PATRLUK KEANE.

Witnesses:

P. D. Niven., PATRICK KELLY.

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