US460934A - Device for operating elevator-valves - Google Patents

Description

H. A. BEIDLER. DEVICE FOR OPERATING ELEVATOR VALVES.

Patented Oct. 6, 1891.

(No Model.)

UNITED STATES PATENT OFFICE.

HERBERT A. .BEIDLER, OF CHICAGO, ILLINOIS DEVICE FOR OPERATING ELEVATOR-VALVES.

SPECIFICATION forming part of Letters Patent No. 460,934, dated October 6, 1891.

Application filed May 23, 1891. Serial No. 393,827. (No model.) i

To aZZ whom it may concern.-

Be it known that I, HERBERT A. BEIDLER, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Means for Operating the Valves of Elevators, of which the following is a specification.

This invention relates to elevators; and its object is to provide a convenient and effective means for operating the valves of such elevators from the moving car.

It consists inthe construction and arrangement substantially as hereinafter described, and pointed out in the claims.

Like letters refer to the same parts in the several figures of the drawings, in which Figure 1 is a vertical section of the ele vator-shaft, car or cage, and the means connected therewith for operating the valves. Fig 2 is a detailed view, in end elevation, of one of the sheaves and the arrangement of the rope around such sheaves. Fig. 3 is a similar view of a pair of sheaves and the arrangement of ropes around the same; and Fig. i is a detailed view, partly in section, of a modified arrangement for throwing the Valve.

In the main figure in the drawings there is shown an elevator-shaft of the usual form,in which is placed an elevator car or cage G, likewise of a customary construction. Two sheaves or pulleys IIare journaled in brackets, respectively, at the upper and lower portion of the shaft and serve as guides and supports for an endless rope or cable 0. To this rope may he fixed directly a lever E for operating the valves; or the connection of the valve may be made, as shown in Fig. 4:, by providing the lower sheave I with a projecting arm F, to which the valve may be connected.

To a bracket attached to the cage or car are journaled two sheaves B B, and a third sheave D is pivoted at the outer end of an angular lever L, which latter is journaled upon the same shaft with the sheave B, but independently thereof, and has an arm projecting up into the cage or car.

A rope or cable A is secured atone end of a device near the top of the elevator-shaft and its other end is preferably attached to a weight arranged near the lower portion of the same elevator-shaft; but if it is desired this end mav also be fixed to a bracket or other device at such lower end. According to the arrangement which I prefer the rope A is passed around the sheave B from the outer toward the inner side and thence goes again outward and around the sheave B, and then extends downward to its lower connection or weight. In such an arrangement the sheave B maybe termed an idler, and while it is desired to use the same it is not absolutely necessary, but, instead, the rope may be passed directly around the sheave B and extended downward from the outer side there of. The sheave B should be connected with the sheave D in such a manner as to impart its revolution thereto, and this may be effected by gearing of a suitable kind; but I prefer to employ a loop of the rope 0. According to this arrangement, which I prefer, the rope 0 passes downward around the outer side of the sheave D, and thence upward around the upper and outer side of the sheave B, and thence under the same and over the top of the sheave D and downward to the stationary sheave I, and upward around the similar sheave I.

The operation of the invention is as follows: As the car or cage travels back and forth in the elevator-shaft it carries with it the lever L and the sheaves B 3 .D; but the cords A and O normally remain stationary. The friction of the loop in the cord A, which encircles the sheaves B B, causes them to revolve, and such revolution iscommunicated to the sheave D by the crossed loops of the cord C, which encircles and gears together the sheaves B D. While the lever L remains at rest the sheaves merely travel up and down upon the two ropes A and C; but when such lever is moved in either direction the outer sheave D is caused to move in a similar direction and pull the rope (,and thereby op erate the valve.

It is obvious that changes may be made in the above arrangement and construction by those skilled in the art without departing outer end, another sheave carried by the car,

the two sheaves being geared together, a rope connected at its upper and lower ends, respectively, to points adjacent to the top and bottom of the elevator-shaft and having an intermediate loop encircling one of the sheaves, and an endless rope passing around sheaves at the top and bottom of the elevator-shaft and having a loop encircling the sheave upon the end-of the lever and connected with a valveof the motor, substantially as and for the purpose set forth.

2. In an elevator, the combination. ofa car, an angular-lever carried thereby and itself carrying a sheave upon its outer lower end, another sheave'carried by the car and adjacent to the first-mentioned sheave, a rope'extending from the top to the bottom of the shaft'and having an intermediate loop encircling one of the sheaves, an endless ropealso extending from the top to the bottom of the shaft and having crossed loops encircling both sheaves, and connections from such latter rope to the valve, substantially as and for the purpose set forth.

3. In an elevator, the combination of acar, an angular lever carried thereby, which in its turn carries a sheave'at its outer lower end,

two sheaves in horizontal line,'an d a device connecting this endless rope with the valve,

substantially as and for thepurposeset forth.

HERBERT A. BEIDLER.

\Vitnesses;

J. L. GERRY, LLEWELLYN C. MERRILL.

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