US335239A

US335239A - Elevator

Info

Publication number: US335239A
Authority: US
Publication date: 1886-02-02
Anticipated expiration: 1903-02-02

Description

F. H. PRINCE.

ELEVATOR.

No. 335,239. Patented Feb. 2, 1886.

Wine/saved.-

UNITED STATES PATENT OFFICE.

FREDERICK H. PRINCE, OF CHICAGO, ILLINOIS.

ELEVATOR.

SPECIFICATION forming part of Letters Patent No. 335,239. dated February 2, 1886.

Application filed October 9, 1885.

To all whom it may concern.-

Be it known that I, FREDERICK H. PRINCE, a citizen of the United States, residing in Chicage, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Elevators, of which the following is a specification.

This invention relates to the means whereby the engine-valve is operated from the car or platform in that class of elevators in which a running hold is maintained upon the valvecables; and its nature is disclosed in the subjoined description and the accompanying drawings.

In the latter, Figure l is a side elevation of an elevator-car with its cableconnection to the valve-operating mechanism. Fig. 2 is a front elevation of the same. Fig. 3 is a plan of the car.

In said drawings, A represents the ear or platform, and A a standard at the side thereof. To this standard is attached a bracket, A'fland in thelatter is the bearing of the pivot B, to which is secured at one end the operators lever B, and at the other end a piece forming the arms b. Each of these arms carries a sheave, C, and, together with the operators lever, forms what might be termed a pivoted T-lever, the arms b constituting the rocking arm or cross-piece, and the lever B the upright of the T. Upon or supported from the floor of the car are two stationary sheaves, C C. Each of the valveeables D D (which may beintegral) extends from the top 0 of the hoistway under sheaves C, thence over sheaves C, thence down to the bottom of v the hoistway, where the two cables are secured to opposite sides of drum E by staples e or other device, which will prevent slipping on the drum. The cables may, if preferred,be passed under sheaves E, and thence up to the drum, as illustrated,or be conducted to the latter at a distance from the elevator shaft or way. From the drum E motion is transmitted to the engine-valve in any usual way-as, for instance, by belt from the pulley E on the drum shaft E".

Serial No. 179,383. (No model.)

The operation of the device is as follows: If the operator desires to start the car upward, he moves the lever B through its handle b, so the sheave C, over which the cable D runs, will be raised. This will draw upon that portion of the cable below the car, and consequently oscillate drum E downward upon the side to which cable D is attached. To start downward, the lever is moved to the opposite side, thereby raising the sheave C, over which cable D passes, and oscillating the drum E in the opposite direction. If the engine is to be reversed, the operator moves the lever from one side to the other and past the center or normal position, and to stop it he simply returns the lever to its center or normal position. Themovement upward may be obtained from cable D, and the downward from cable D, if that is more convenient. It will be noticed that each cable is made to yield to the other, as occasion requires, through the lowering of one of the sheaves C at the same time and to the same extent the other sheave C is raised; also, that the sheaves upon the car may be located outside of it, so the cables need not pass through the floor.

I claim 1. The combinatiomwith the ear and valvecables, of the devices for keeping a running hold on and operating said cables, consisting of the movable sheaves mounted on a rocking arm, and the operators lever for actuating said arm, and the stationary sheaves C, substantially as specified.

2. The combination, with the valve-cables and car, of a pivoted T-lever, the sheaves mounted on the lever, and the stationary sheaves C, the lever and sheaves being mounted on the car, substantially as specified.

3. The combination, in an elevator, of lever B, pivot B, arms I), and sheaves C with cables D and D, substantially as specified.

FREDERICK H. PRINCE.

Witnesses:

H. M. MUNDAY, Enw. S. EvAIvrs.