US726960A - Stopping mechanism. - Google Patents

Description

-No. 726,960. PATENTED MAY 5, 1903.

J. T. MEATS. STOPPING MECHANISM.

APPLICATION FILED JUNE 28. 1902.

N0 MODEL.

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Patented May 5, 1903. A

JOHN T. MEATS, OF TAUNTON, MASSACHUSETTS, ASSIGNOR TO MASON MACHINE WORKS, OF TAUNTON,MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS.

SPECIFICATION forming part of Letters Patent No. 726,960, dated May 5, 1903.

Application filed June 28, 1902' Serial No. 113,672. (No model.)

The loom side 1, crank-shaft 2, having fast 50 anism and simplification and cheapening of construction thereof.

The stopping mechanism forming the subject of my invention is so constructed andarranged that when used in connection with a loom it enables the operative to readily start the loom without extreme exertion, while at v the same time I have provided for a'quick action of the belt-shifter when the shipper is released by the filling-fork upon failure of the filling or by the protector-mechanism when the shuttle is improperly boxed.

So far as I am aware, in the majority of stopping mechanisms of this type now in use the power required of the operative to shift the belt to the fast pullley 'z'. e'., to start the loom-has been too great in proportion to the speed with which the belt isshifted to the loose pulley by the belt-shifter whenthe shipper is released. These objections are obviated entirely by the construction to be hereinafter described.

The novel features of my invention will be fully described and set forth in the following specification and particularly pointed out in the following claims.

Figure 1 is a right-hand side elevation of a sufficient portion of a loom of usual construction to be understood with one embodiment of my invention applied thereto, the shipper and mechanism controlled thereby being shown in stopping position. Fig. 2 is a front elevation, partly broken out, of the mechanism illustrated in Fig. 1; and Fig. 3 is a partial plan view thereof, the shipper being shown in section.

and loose pulleys 3 4 thereon, the lay 5, the filling-fork 10, weft-hammer 11, breast-beam 12, and the holdingplate 13, having the shouldered notch 14 for the shipper, may be and are all of usual or well-known construction and operate in well-known manner.

The belt fork or shifter 15, slidably mounted on a stud 16 on the loom side, and the fixed guide 17, in which plays the lug 18 on the belt-shifter, are also of usual construction, the hub of the belt-shifter having a projection or pin 19 thereon, which plays in the bifurcated or forked upper end 20 of an upturned arm 21, secured at its lower end to a rock-shaft 22. This rock-shaft is mounted in a long sleeve-like bearing 23, secured to the exterior of the loom side near the base thereof, said bearing having a lug 24 thereon, and the rock-shaft projects at its front end beyond the bearing far enough to have rigidly secured to it in any suitable mannera casting 25, upturned and forming a short arm movable in a vertical path directly beneath the notch 14 of the holding-plate. The lower end of the shipper 26 is secured to this casting in any suitable manner, as by bolts 27, Fig. 2, the shipper thus having the rock-shaft 22 as its fulcrum, so that a long and firm support is provided for the shipper. A spring 8 is coiled around the outer end of the bearing 23, and one end of the spring is held fixed by the lug 24, its other end engaging the shipper adjacent its fulcrum, the winding of the spring beingsuch as to nor mally act to maintain the shipper at the outer end of the notch 14 in stopping position. The

'force to throw theshipper-into stopping position is thus separate therefrom, as opposed to the usual practice of making the lower end of the shipper itself constitute the spring, or of rigidly attaching a leaf-spring to the shipper and supporting the latter, so that herein the spring is entirely relieved from the duty of supporting the shipper.

By concentrating the spring action at the fulcrum of the shipper a lighter spring can be used and the force required to throw the shipper into running position is greatly reduced, this being due not only to the light spring employed, but also to the long leverage between the spring and the handle of the shipper. As a result the labor involved in operating the shipper to start the loom is re duced to a minimum, a matter of very great importance to the weaver in the'course of the days work.

The parts are very simple, the construction is cheap, and the replacement of the spring by a new one when necessary is readily effected.

The inherent resiliency of the shipper is sufficient to retain it in the shouldered end of the notch when in running position.

The shipper may be automatically releasedby the usual devices, the knock-off arm 28 being operated by or through the filling-fork upon failure of the filling, and the auxiliary knock-off lever 29 operates by or through the usual protector mechanism when the shuttle fails to reach its proper place in the shuttlebox.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-- idly secured, a. belt-shifting arm rigidly secured to the other end of the rock-shaft, a stationary sleeve-like bearing for the latter and extending from the shipper to said arm, and a spring surrounding the bearing and fixed thereto at one end, the other end of the spring engaging the shipper, to move it into stopping position.

In testimony whereof name to this specification in the presence of two subscribing witnesses.

JOHN T. MEATS.

Witnesses:

FRANK W. BROOKS, HARRY W. FAY.

1 have signed my 45

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