US369937A - Means for controlling elevator-valves - Google Patents

Description

(No Mom.) 2. sheets-sheet 1.

T. W. HBBRMANS. y MEANS POR GONTROLLING ELLVAJJEOR VALVES. No. 369,937.

Patented Sept. 13, 1887.

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(No Medel.) I 2 Sheets-Sheet 2.

` T. W. HEERMANS.

MEANS FOR GONTROLLING ELBVATOR VALVES.

Patented Sept. 13, 1887.

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IINrTnn 'STATES Parent trice@ THADDEUS M7. HEERMAN S, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE CRANE ELEVATOR COMPANY, OF ILLINOIS.

VINS FOR CONTROLLING ELEVATOR=VALVES.

SPECIFICATION forming part of Letters Patent No. 369,937, dated September 13, 1887.

Application filed March 16, 1887.

To all whom, it may concern:

Beit known that I, TnADDEUs W. Hana MANs, of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Means for Controlling the Valves of Elevators, of which the following is a specification.

The object of my invention is to provide a substitute for the ordinary'hand-rope which passes through the elevator-car, so constructed that the attendant may control the movement ofthe ear by a wheel or lever fixed in the car, instead of grasping the rope directly.

My invention consists in the parts and combinations hereinafter described and claimed.'

In the drawings, Figure l is a cross-section of the side of the car and the control apparatus. Fig. 2 is a view from the interior of the car, the friction-disk G, Fig. l, being removed. Fig. 3 is a view from outside of the car. Figs. 4, 5, 6, and 7 illustrate details.

A, Fig. l, is a hand-wheel supported by the shaft B, which is free to revolve therein. The hand-wheel is made with flanges f f, which eX- tend to meet the disks F G, so as to form a casing excluding dirt, and preventing all chance ofinjury to the attendant. The shaft B is supported by the sleeve E, and this in turn by the casting V, secured to the side of the car C. Mounted upon the extremities of the shaft B and revolving with it are the sheave K and beveled frictionedisk G. The latter is driven by a feather, b, which permits it to move endwise on the shaft B. The sleeve F carries fixed upon it the sheave J and friction-disk F. Both sheaves J and K are deeply grooved, as shown in Fig. 7, so that they may grip the ropes more iirmly. Greater security against slipping of the ropes is thus attained, through if the grooves were so wide as to allow contact of the ropes with their bottoms the device would still be operative.

Between the friction-disks G and F are interposed the coned rollers HH H, two, three, or more in number, which turn freely on the detachable spindles I I I. These rollers may be made of any desired material; but I nd rawhide preferable. The spindles I I I are secured in the handwheel A by means of the clamping-plate a and sockets d. This mode of fastening permits the spindles I I I to be ra- Serial No. 231,123. (No model.)

dially adjusted, so that the rollers H may bear properly upon the disks G F. A yielding contact between the disks G F and rollers H is maintained by the device shown in the enlarged section in Fig. 4. It consists of a rubber washer, P, protected by metallic washers O O on each side, interposed between the hub of disk G and the adjusting-nuts a u.

To diminish the friction between the hubs of the sheaves J and K, a ring, N, having within it the coned rollers T T, Figs. 5 and 6, is introduced.

The usual hand-rope passing through the elevator-car is replaced by two ropes, R and S, suspended in the shaft. The ropes R S are attached in any of the well-known ways to a valve mechanism of any sort, and as my invention has to do only with the means for operating or handling the control-rope, and not with its mode of attachment to the valve, the latter is not shown.

Above or beneath (in this case beneath) the sheaves J K are the idler-pulleys L M, whose axes are oblique to the axes of sheaves J K.

By referring to Fig. l it will be seen that one edge only of the pulley M is in the plane of the sheave J, while the opposite edge only ofthe pulley Lis in the plane of thesheave K. The purpose of this arrangement will appear when the manner of reeving the ropes upon the pulleys is described.

The rope S, Fig. 1, and tracing the course from below upward, passes upward over the sheave J on the side nearest the observer, (in the drawings it is broken away from x to 30,) downward on the farther side to the pulley M, around the latter, and then upward to the top of the shaft. The Obliquity of the axis of pulley M leads the rope S to one side of the sheave J without subjecting it to any grinding action, and this arrangement permits of its operation without noise. The rope B is passed around the pulleys K L in the same manner, but reverse direction-that is, it passes upward over the sheave K on the farther side, then downward on the nearer side, and finally up the shaft from the farther side of pulley L. For the sake of avoiding confusion, but one rope is shown in each of the side views, Figs. 2 and 3.

The operation is as follows: Supposing the carto be in a state of rest, if the valve-con- IOO nections of the ropes are such that the movements of the ropes in operating the valve are equal and in opposite direction, then the handwheel A will be turned without revolving the rollers H H H on their axes, and both the disks G F and sheave J K will be carried with and in the same direction as the wheel A. As the ropes R Sare coiled in opposite directions on sheaves J K, one will be raised and the other depressed an equal amount; but, as said before, the ropes It S may be attached to the valve or control gear in any desired manner, and this mode of attachment might be such as not to permit one rope to move as much as the other, or might be such as to confine the movement to one rope only. In the last case, taking B to be the xed rope, the disk G would not be permitted to revolve, and movement of the hand-wheel'A would result in rolling the cones II upon disk G and the imparting of a multiplied motion to the disk F, the sheave J, andthe rope S. The car being started in this manner and the disks F G and sheaves J K being of equal size, the movement of the car G in the shaft causes them to revolve at Y equal speeds in opposite directions, the rollers H H H turning on the axes without moving the hand-wheel A. If, now, while the car is in motion, the hand-wheel A be turned, one of the sheaves will be accelerated and the other retarded, thus elevating one rope and depressing the other as conveniently as when the Car is at rest.

It is of course understood that all of the acceleration or retardation may be imparted to one sheave if the rope passing around the other be fixed, as before explained. When a single looped rope is used, then the ropes B S herein shown would represent the two parts of such continuous looped rope.

It is apparent that the use of two adjustingnuts, U U, and the protecting-washers O O are non-essential. A single nut and the elastic washer would have the same function, but would not be so reliable or durable'.

I am aware that in control devices for elevators sheaves revolving in opposite directions and respectively accelerated or retarded by intermediate parts are old, and I make no broad claim thereto.

By mounting the sheaves J K and their disks F G on the opposite ends of the sleeve E' and shaft B, respectively, prolonging the sleeve sufficiently to afford a journal for the bearing V between the disk F and the sheave J, I am enabled to place the control-ropes outside the car.

I claim- 1. The combination of the sleeve E, journaled in the bearing V, secured to the side of 6o the car, vcarrying on its outer end the sheave J and on its inner end the disk F, and the shaft B, carrying on its outer end the sheave K and on its inner end the disk G, with the hand-wheel A, carrying the coned rollers H H between the disks F G.

2. In an apparatus for controlling the operation of elevators, the spindles I I, carrying coned rollers I-I H, interposed between the beveled friction-disks F G and radially ad- 70 j ustable, as and for the purpose specified.

8. rIhe combination of the ropes B S,.passing over sheaves K J in contrary directions, each sheave connected to and driving one of two opposed beveled friction-disks, and coned 75 rollers carried by a hand-wheel between said disks, said hand-wheel being provided with flanges f f, extending to meet said disks, as and for the purpose set forth.

4. In a control apparatus having opposed 8o friction-disks and interposed rollers, said disks being mounted, respectively, upon a concentric shaft and sleeve, a thrust-collar comprising a ring, N, and rollers T T, interposed between the sheaves carried upon the opposite 85 ends of theshaft and sleeve.

THADDEUS W. HEERMANS.

Witnesses:

P. H. T. MAsoN, J. I. VEEDER.

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