US243771A - Pateick gately - Google Patents

Description

(No Model.)

' P. GATELY SAFETY ATTACHMENT FOR ELEVATORS.

No. 243,771. Patented July 5,1881.

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UNITED STATES PATENT OFFICE.

PATRICK GATELY, OF NEW YORK, N. Y.

SAFETY ATTACHMENT FOR ELEVATORS.

SPECIFICATION forming part of Letters Patent No. 243,771, dated July 5, 1881.

Application filed May 19, 1881. (No model.)

To all whom it may concern:

Be it known that I, PATRICK GA'rELY, a citizen of the United States, residing at New York, in the county and State of New York, haveinvented a new and useful Safety Attachment for Elevators, of which the following is a specification, reference being bad to the accompanying drawings.

My invention relates to an attachment for an elevator which has a pulleyor drum on which the hoisting-rope winds; and it consists in a frame or receiver so located with reference to said drum, and so connected to and operating with the valve and other mechanism, as hereinafter described, that should the said rope break or become loose on the drum the loosened rope, by falling on said frame or receiver, shall be the means of stopping the motive engine.

In the drawings,]3igure 1 is a side elevation of so much of a device embodying my invention as serves for illustration. Fig.2 is a plan, and Fig. 3 a front elevation, of the same.

The drum or pulley A, on which winds the hoisting-rope a, is on the shaft 1), and is located in the machine in the ordinary manner.

Under the drum A, in suitable relation thereto, is the frame or receiver B,which is of sufficient size and of construction proper to receive any part of the rope to which may drop or sag down from close contact with the drum. The frame B is so hung as to form part of a lever, or be attached to a lever, G, pivoted as by the bar or shaft 0, having places of hearing d d in fixed supports. There is an arm, 6, of the lever G, which is weighted or is of sufficient weight to keep the lever in the position shown when there is no extra weight on the frame B. There is another arm, f, of the lever O, to which is pivoted a rod, D. The other end of this rod rests on a fixed pin or stop, g. There is another lever, E, having a weight, it, and pivoted at t to a fixed support.

One arm, j, of the lever E is to move part of a clutch, F; and the other arm, 70, rests on the rod D when the part I of the clutch is out of engagement with the other part, on. The clutch F is on a shaft, G, which is to revolve in suitable fixed bearings, the part m being fixed to the shaft, and the part I being loose on the shaft and having fixed to it a gear,

H. In proper relation to the gear H to engage therewith is a segment, I, of a gear, which is pivoted at a to fixed supports.

On the segment I is a stud or pin, 0, on which is pivoted one end of a rod, J. The other end of this rod is pivoted to a lever, K, at 19. One end of the lever K is pivoted to a fixed support at q.

The pipe L may represent the exhaust-pipe of the engine, or the supply-pipe, or the valvechest. It contains avalve for closing the passage inbox M, having the valve-stem r. A lever, N, havinga weight, 8, is pivoted at one end, 2., to a fixed support, and rests at the other end on the lever K, as shown, when the valve in box M is open.

The mechanism being substantially as described, and the parts in position, as shown in the drawings, when the rope a breaks or becomes loose on the drum, as the result of the elevator-car getting caught, or from other causes, it will drop or sag onto the frame B, moving the same downward and swingingthe lever (l. The end of the rod D will therefore be pulled from under the lever E, which will swing, being moved bythe weight It, and bring the part I of the clutch into engagement with the part m, so that the gear H will be revolved by the shaft G, this shaft being in constant revolution while the engine is in operation. The segment I, being in engagement with the gear, will be swung, and hence the lever K will be pulled from under the lever N by means of the rod J. The lever N will thereupon be swung downward by the weight 8, and hence the valve be moved by means of the stem 4', and the passage of steam or water stopped, and the engine will cease to act. Further disarrangement of the hoisting-rope, and any accident that might result from the continued motion of the engine and machine, including the revolving of the drum A, while the free movement of the car is obstructed, will thus be prevented. Before the engine and machine are again put in action the engineer or other person in charge will put the mechanism described in condition for action, as specified.

I claim as my invention- 1. In an elevator, a frame or receiver set in relation to the drum on which winds the hoist- I r v I 4. The combination of the lever N, to operate the valve, with the lever K, rod J, and mechanism for moving rod J by the hoistingrope, substantially as specified.

5. In an elevator, a valve for closing the supply or exhaust passage of the motive engine, operated by the hoisting-rope when it drops from or becomes loose on the drum, substantially as set forth.

6. An elevator mechanism, substantially as described, whereby the hoisting-rope, when it falls from or becomes loose on the drum, connects, for moving a valve, 9.- part of the machinery, as the shaft Gr, having continued motion.

PATRICK GATELY.

Witnesses:

ARTHUR S. VAN VooRHrs, THEODORE T. HARCALL.

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