US843980A - Controlling apparatus for elevators. - Google Patents

Description

- PATENTED FEB. 12, 1907. J. J.. WBSTBROOK. CONTROLLING APPARATUS FOR ELEVATORS.

APPLICATION FILED MAY 18, 1906.

3 SHEETSSHEBT l.

1V VENT OR meya No. 843,980. PATENTED FEB. 12, 1907.

- J. J. WESTBBOOK.

CONTROLLING APPARATUS FOR ELEVATORS.

APPLICATION TILED MAY 18, 1906.

' a SHEETS-SHEET 2.

PATENTED FEB 12, 1907.

. J. J. ,WESTBROOK. V CONTROLLING APPARATUS FOR ELEVATORS.

APPLICATION FILED MAY 18. 1906.

3 SHEETSSHEET 3.

UNITED srarns garner enrich.

CbNTROLLlNG APPARATUS FOR ELEVATORS.

Specification of Letters Patent.

Patented Feb. 12, 1907.

Application filed May 18,1906. Serial No. 317,609.

To all whom it may concern.-

Be it known that I, JOHN J. VVEsTBnooK, citizen of the United States, residing at Danville, in the county of Pittsylvania and State of Virginia, have invented certain new and useful Improvements in Controlling Apparatus for Elevators; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention consists in the novel features hereinafter described, reference being had to the accompanying drawings, which illustrate one form in which I have contemplated embodying my invention, and said invention is fully disclosed in the following description and claims.

Referring to the drawings, Figure 1 is a side elevation of an elevator-car and controlling apparatus, the controlling-cable being broken away in part. Fig. 2 is a similar elevation looking at another side of the car. Fig. 3 is a horizontal diagrammatic view of the car, showing the relative arrangement of the parts of the controlling apparatus. Fig. 4 is a vertical sectional view of one of the track-stands, showing the stationary and the sliding sheave. Fig. 5 is a detail view of the hand-wheel and its support. Fig. 6 is a partial view of a car, showing a modified arrangement of the controlling apparatus. Fig. 7 is a section on line 7 7, Fig. 4. Fig. 8 is a top plan view of the track-stand shown in Fig. 4 and indicating the positions of the rope or cable connected to the flier-wheel.

The object of my invention is to provide a controlling apparatus for elevators which can be applied to any form of elevator, whether hydraulic, electric, or belt-operated, which can be operated to give any desired throw to the flierwheel, according to the requirements of the elevator mechanism, and which can be placed on any car and arranged to accommodate any conditions which may be met in the elevator-well. To this end I provide a pair of separate and independent track-stands A, one of which is shown in section in Fig. 4, each being provided with attaching means by which it may be bolted or secured to the car on the exterior thereof and having a stationary and a movable sheave.

The track-stand A is preferably a verticallydisposed standard provided at its lower end with laterally-extending webs a a, which are perforated to permit bolts or lags-crews to be passed through to secure it to the carplatform structure. At its upper end the stand A is provided with a stud a, bolted to the stand at an angle thereto and carrying the fixed sheave B. The stand is provided with a longitudinal guide a preferably a dovetail guiding-rail, on which is mounted a sliding block 0, carrying a yoke c, in which is mounted the sliding sheave C, the yoke 0 being provided at its lower end with means for receiving and retaining one end of an operating rope or cable D.

E represents a hand-wheel provided with a sheave or pulley e, formed integrally therewith or rigidly connected thereto, both being mounted on a stud 6 carried by a plate e which preferably extends to the bottom of the car and is provided with bolt-holes, by means of which it can be bolted to any convenient portion of the car where the handwheel can be handled by the operator.

F F represent the vertical portions of the controlling rope or cable, which extend vertically through the well and have their ends (in this instance their upper ends) secured to spring take-up devices f f to keep the cable taut. The cable F F is passed around the flier-wheel G, which controls the elevator mechanism, by means of a valve, circuit controller, or belt-shipper or other means, (not shown,) depending upon the type of elevator mechanism, and suitable idle pulleys H II, &c., are employed to guide the cables to the flier-wheel.

In Figs. 1, 2, and 3 I have shown the apparatus arranged with the track-stands on opposite sides of the car and the controlling hand-wheel arranged on a side perpendicular to and between the track-stands. Each part of the controlling-cable F is brought down from the take-up device f (which, as shown, comprises an eyebolt extending through a beam or girder and provided with a spiral spring) and is then passed around the movable sheave C of the adjacent trackstand, thence up over the stationary sheave B, and thence to the flier-wheel. The operating cable or rope D extends from one movable sheave C down under the car, around sheaves I I beneath the car, around the sheave e of the hand-wheel, to which it is preferably rigidly secured in any desired manner, thence under the car around similar sheaves I I to the other movable sheave C.

When the flierwh eel is in its median position and the elevator-car is stationary, the movable sheaves C G will be equally distant from the adjacent stationary sheaves B B, and by rotating the hand-wheel E in either direction one of the movable sheaves C will be drawn down and the other permitted to rise, thus taking up slack out of one portion of cable F and letting it out cor respondingly on the other part, thus rotating the flier-wheel in the desired direction.

In Fig. 6 I have shown both of the trackstands bolted to the same side of the car and the hand-wheel E arranged also on the same side between them, in which case only one idle sheave I I will be required on each side instead of two, as shown in Figs. 1, 2, and 3. It is obvious that a large variety of arrangements of the track-stands and hand-wheel can be made to suit different requirements and that by making these devices separately and providing for their separate attachment the controlling mechanism can be applied to any elevator-car and adapted to the peculiar construction or arrangement of the. elevator mechanism with which it is to be used.

The track-stands A A are of such length thatany desired throw of the flier-wheel which would be necessary to effect the control of the elevator mechanism can be obtained.

In order to rovide the necessary guide for the movab e sheave C in a cheap and efli ient manner, the track-stand A is cast with a vertical outwardly-extending rib (i Fig. 7, on the outer side of which is secured a plate a", wider than the rib a and secured thereto by screws the heads of which are countersunk or flush with the outer surface of the plate, thus forming the dovetailed guide a previously described, upon which the sliding sheave moves.

The stationary sheaves B are mounted on studs which are arranged at an angle to the track-stand, as shown in the plan view, Fig. 8, and the face of the boss a, through which the stud (1 passes, is forced off on an angle to the plane of the track-stand as therein shown. This angular setting of the stationary sheaves B is important, as it prevents the part of the cable F which extends from the take-up f to the movable sheave from chafing against that portion. which. extends from the stationary sheave down to the flier-wheel, as is clearly indicated in Fig. 8, in which the portions of the cable are indicated in section.

ceaseo What I claim, and desire to secure by Letters Patent, is-

1. Elevator controlling apparatus comprising among its members two separate and independent track stands, a stationary sheave mounted on each of said stands, a movable sheave mounted on each of said stands and capable of movement toward and from the stationary sheave, a hand-operated controlling device separate from said trackstands, and mechanism'operatively connect ing said hand-operated controlling mechanism to said movable sheaves whereby said track-stands and controlling mechanism may be secured. to the elevator-car on the same or different sides of the car, substantially as described.

2. Elevator controlling apparatus comprising among its members, two separate and independent track stands, each provided with a longitudinal dovetailed guide, and means for attaching the track-stand to the elevator-car, a stationary sheave mounted on each of said track-stands in line with its longitudinal guide, a slide mounted on each of said guides, a movable sheave mounted on each of said slides, a separate hand-Wheel, an operating-wh eel operatively connected therewith, means separate from the track stands for supporting said hand-wheel and operating-wheel, and. operative connections be tween said operating-wheel and the said mov able sheaves, whereby said track-stands and the hand-wheel and operating-wheel may be secured to the same or different sides of the elevator-car, substantially as described.

3. In an elevator controlling mechanism, the combination with two separate and independent track-stan'ds, of a stationary sheave mounted. on each track-stand, a movable sheave slidingly mounted on each trackstand. and capable of moving toward and from the stationary sheave thereof, one of said sheaves of each. track-stand being set at an angle to the other, a controlling-rope connected with the elevator mechanism and en gaging the stationary and movable sheaves, a hand-operated controlling device, means for securing the same to the car independent of said track-stands and operative connections between said hand-operated controlling device and said movable sheaves, substantially as described.

4. In an elevator controlling mechanism, the combination with two independent trackstands each provided with means for attaching it to a car, a bearing-stud secured to each of said track-stands and inclined to the face of the same, a longitudinal rib on each of said track-stands in line with one of said studs, and a plate of greater width than said ribs, secured to each of the same to form a dovetailed guide, of a fixed sheave mounted on the inclined stud of each of said track-stands, a sliding sheave on each of said track-stands having provision for engaging the dovetailed guide thereof, a controlling-rope engaging said fixed and sliding sheaves, a hand-wheel,

a supporting-plate for said hand-wheel havi ing means for attaching it to a car independl ently of said track-stands, an operatingl wheel connected with said hand-wheel, and

flexible connections between said operating- 10 wheel and said sliding sheaves, substantially as described.

In testimony whereof I affix my signature in the presence of two witnesses.

JOHN J. WESTBROOK. WVitnesses i W. J WEsTBRooK, STANLEY W. SCOTT.

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