US461584A - Stopping mechanism for swivel-looms - Google Patents

Description

(No Model.)

W. -J. LUTTON.

STOPPING MECHANISM FOR SWIVEL LOOMS.

No. 461,584. Patented Oct. 20, 1891.

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Uivrrnn :STATES- ATE-NT WILLIAM J. LUTTON, OF PATERSON, NEIV JERSEY.

SPECIFICATION forming part of Letters Patent No. 461,584, dated October 20, 1891.

Application filed October 9, 1890. Serial No. 367,503. (No model.)

To aZZ whom it may concern:

Be it known that I, IVILLIAM J. LUTTON, of Paterson, in the county of Passaic and State of New Jersey, have invented a new and useful Improvement in Stopping Mechanisms for Swivel-Looms, of which the following is a specification.

My invention relates to an improvement in safety attachments for looms, and more particularly to mechanism for stopping the operation of a loom in which swivel-shuttles are employed upon the failure of the shuttles to complete their stroke in either direction.

A practical embodiment of myinventiou is represented in the accompanying drawings, in which-- Figure 1 represents a portion of aloom embodying my invention in front elevation, the breastbeam and portion of the main frame being removed. Fig. 2 is a partial end elevation showing the lay and mechanism attached thereto in transverse section through line 00 0c of Fig. 1. Fig. 3 is a top plan view of the swivel-shuttle beam, a portion of the arm for operating the swivel-shuttles being removed; and Fig. at is a partial side view of the swivel'shuttle beam, broken away to show the swivel-shuttle-operating bar.

The loom, portions of which I have represented in the accompanying drawings for the purpose of illustrating my invention, is of the drop-box type and is provided with swivelshuttle mechanism supported upon the dropboxes and adapted to rise and fall therewith, so as to be brought into operation when the drop-boxes at the side are dropping out of operative position.

A represents the loom-frame; B,the breastbeam; C, the shipper-lever shaft, having connected with it any ordinary beltshifting mechanism, and also a handle, by which said mechanism may be operated by hand.

D represents theknock-off lever, rigidly secured to a rock-shaft d and provided with a notchd to receive the thrust of a dagger E. There is also acam d secured to the rockshaft d, which bears upon an arm F, secured to the rock-shaft O, in order to operate the belt-shipper shaft when the dagger strikes the said notch 62. The several operative parts for shifting the belt which I have enumerated are well known in the art and are illustrated in Letters Patent No. 376,776, granted to L. J. Knowles January 2%, 1888.

Thedagger or daggers E are fixed upon a rock-shaft G, journaled in suitable bearings g, attached to the lay H. is provided at its opposite ends with arms g, fixed thereto, the free ends of said arms extending upwardly opposite the free ends of The rock-shaft G the spring-actuated covers 2' of the d rop-boxes I. The position of the arms g with relation to the drop-box covers is such that the covers of the set of drop-boxes in use will swing against them as the shuttle enters the box, thereby rocking the shaft G, and hence the dagger E, so that it will not engage the notch din the knock-off lever D as the lay swings forwardly.

When the swivel-shuttle mechanism is su pported upon the drop-boxes to rise and fall therewith, as represented in the accompanying drawings, the upper set of drop-boxes at the side will be thrown out of use for purposes of receiving shuttles. a series of swivelshuttles being arranged to take their placein the operation of weaving.

The swivel-shuttle mechanism which I have 4 chosen for the purpose of illustrating my stop mechanismis quite similar to thatshown and described in my pending application, Serial No. 365,252, filed September 1.7, 1890, and need swivel-shuttle beam L. My present i-nvention comprises means whereby the back-andforth movement of the rack-bar which drives the swivel-shuttles will serve to rock the dagger into a position which will clear the beltshifting mechanism so long as the swivelshuttles complete their stroke, but which will, upon the failure of said shuttles to complete their stroke, fail to so rock the dagger, and will thereby setin operation the belt-shifting mechanism to stop the loom.

A pair of'sliding rods M and M are secured to the swivel-shuttle beam and are subject toa limited sliding movement under the impulse ofthe swivel-shuttle-operating bar. In

the present instance-I have shown them in in lieu of the arm K to suit various structures or arrangements of the swivel-sh little-operating bar. The adjacent ends on and m of the sliding rods are here shown as provided with cross-heads, which, when the rods are in their normal positions, project a short distance over the ends of the path which arm K traverses. In Fig. 3 the end 972' of the rod M is shown in such normal position, while the end m of the rod M is shown as forced back by the engagement of the arm K therewith. At their opposite ends the rods M and M are connected with the end of an arm n of a double crank N, secured to the side of the beam L, so as to rock the said double crank, forming in effect a rockinglever. The other armn of the double crank is provided with a pin aawhioh, when the said crank N is rocked in one direction, will engage the spring-actuated cover 2' of the upperdrop-box and force itoutwardly against the arm g, and thereby throw the dagger, as hereinbefore stated, into a position to clear the belt-shifting mechanism. The said double crank is rocked back when the operating-rod M or M is released by means of the pressure of the spring-actuated cover 2' tending to return to its closed position. Such movement of the double crank N serves to set the operating-rod M or M into position to be engaged by the arm K. From this construction and arran gement it follows thatwhen the arm K completes its stroke in either direction, and hence when the swivel-shuttles complete theirstroke in either direction, the dagger E will be thrown so as to clear the belt-shifting mechanism; but if the arm K, and hence the swivel-shuttles, fail to complete their stroke in either direction the crank N will not be rocked suificiently to throw the spring-actuated cover i into engagement with the arm g to rock the dagger clear of the belt-shifting mechanism, and it will therefore engage such mechanism and the loom may be stopped.

In orderto prevent the swivel'shuttles from displacement, either under the tension of the spring-actuated cover t or from other cause, after the arm K has completed its stroke and before it is positively forced in the opposite direction, I provide a spring 0, the central portion 0 of which is adapted to rest normally across the path of the arm K, but which will readily recede when the arm K is intentionally forced from one end of its stroke to the other.

What I claim as my invention is- 1. The combination, with swivel mechanism and mechanism for stopping the operation of a loom, of a sliding rod intermediate of the swivel-shLittle-operating bar and the mechanism for stopping the loom, said sliding rod being subject to the impulse of the swivel-shut: tle-operating bar to prevent the stopping ot loom when the shuttles complete their stroke, substantially as set forth. V

2. The combination, with the bar for operating the swivel-shuttles and a rocking arm adapted to set in motion the 1oom-stopp1ng mechanism, of a sliding rod subject to the impulse of the swivel-shuttle-operating bar, a rocking lever, and connections intermediate the rocking lever and rocking arm for communicatiug the movement of the sliding rod to the said rocking arm to prevent the stopping of theloom when the swivel-shuttles complete their stroke, substantially as set forth.

The combination, with the swivel-sh uttle beam, the bar for operating the swivel-shuttles, and rocking arms for setting in motion the loom stopping mechanism, the swivelshuttle-operating bar being provided with an arm fixed thereto, of sliding rods secured to the swivcl-shuttle beam in position to engage the arm on the operating-bar at the opposite ends of its stroke, spring-actuated drop-box covers, connections intermediate the springactuated covers, and the rocking arms and cranks connected with the opposite ends of the rods in position to operate the spring-actuated covers to prevent the stopping of the loom when the swivel-shuttles complete their stroke, substantially as set forth.

4. The combination,with the swivel-shu ttleoperating bar, its support, and the devices for communicating the motions of the bar to a loom-stopping mechanism, of a springadapted to hold the swivel-shuttle-operating bar at the limits of its stroke in either direction against unintentional displacement, substantially as set forth.

WILLIAM J. LUTTON. Witnesses:

SAMUEL .T. LAWRENCE, I. GARELLY.

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