US1192953A - Elevator-lock. - Google Patents

Description

G. W. TAYLOR.

ELEVATOR LOCK. APPLICATION FILED SEPT-25, 1915.

Patented Aug. 1, 1916.

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ELEVATOR LOCK APPLICATION FILED SEPT-2 5. I915.

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UNTTED STATES PATENT GFFTCE.

GEORGE W. TAYLOR, or WARSAW, NEW YORK.

ELEVATOR-LOCK.

Application filed September 25, 1915.

To all whom it may concern Be it known that I, GEORGE W. TAYLOR, a citizen of the United States, residing at lVarsaw, in the county of Wyoming and State of New York, have invented new and useful Improvements in Elevator-Locks, of which the following is a specification.

This invention relates to an elevator lock and more particularly to a structure whereby the control rope of anelevator may be locked against movement when the operator wishes to leave the elevator.

Another object of the invention is to provide a structure which can be attached to the side of the elevator and having a portion thereof encircling the control rope, means being provided for clamping the rope when the elevator is to be locked.

The invention consists in the features of construction, combination, and arrangement of parts, hereinafter fully described and claimed, reference being had to the accompanying drawings, in which:

Figure 1 is a vertical section through an elevator showing the application of my device. Fig. 2 is a top plan view of my device showing a portion of the elevator in section. Fig. 3 is a longitudinal section on line 33 of Fig. 2. Fig. 4: is a horizontal sectional view showing the jaws in elevation. Fig. 5 is a cross section; and, Figs. 6 and 7 are detail views of the lock bolt.

In the drawings, the numeral 1 designates the casing which is provided with a hollow extension 2 formed of the parts 3 and 4 having a hinged connection with each other. A bolt is provided as shown at 5 for preventing movement thereof when in an operative position. Housed Within the structures just mentioned is a pair of jaws 6 and 7 having arcuate shaped gripping portions 8 and inwardly projecting apertured lugs 9, the apertures of which receive the bolt 10 passing transversely through the casing.

The jaws are provided to one side of the lugs 9 with a pair of cylindrical extensions 11 forming supports for the extremities of a coil spring 12 that utilizes its resiliency to force the adjacent extremities of the jaws apart and the gripping portions toward each other. The jaws are further provided with a second pair of inwardly extending apertured lugs 13, the apertures of which aline when the gripping portions of the jaws are gripping the control rope 14 of the elevator. For moving the jaws apart against the ac- Specification of Letters Patent.

Patented Aug. 1, 1916.

Serial No. 52,651.-

tion of the heretofore mentioned springs, I provlde a shaft 15 that has laterally extending fingers 16 that cooperate with the adjacent sldes of the jaws, the inner surfaces of one of the jaws being provided with a projection 17 whereby the rotary motion of the shaft is limited.

, For locking the heretofore mentioned mechanism against movement, I provide the locklng bolt 18 slidably mounted Within a tubular casing 19 and adapted to have one extremity passed through the apertures of the lugs 13 when they aline which they do when the gripping portions of the aws grip the control rope. I provide a simple structure for locking the bolt 18 against move ment, but, I wish it to be understood that any other construction may be used without departing from the spirit of my invention.

I show a shoulder 20 formed on the casing 19 that cooperates with a laterally extending pin 24 carried by the lock bolt 18. The pin is forced beneath the shoulder 20 against the action of the spring 22 that encircles the bolt between the pin and a portion of the casing 19, the upper end of the casing being provided with an opening for receiving the recessed end of a key 23.

The recess of the key is given a square formation so as to grip the squared extremity of the bolt so that the latter can be initially pressed downwardly against the action of the spring and subsequently given a rotary motion for disposing the pin 21 beneath the shoulder 20, after this operation, the key being removed.

Any suitable means can be provided for rotating the shaft 15 such as a handle 24.

Having described my invention, What is claimed is:

1. An elevator look, a casing secured to the elevator, a pair of jaws pivotally mounted therein and provided with arcuate portions for gripping the control rope of the elevator, a shaft provided with laterally extending fingers for moving the jaws away from the control rope, a spring for forcing the jaws toward the control rope, and a sliding bolt adapted to engage portions of said jaws for locking them against movement when in a locking position.

2. An elevator lock comprising a casing secured to the elevator, a pair of jaws pivotally mounted therein and provided with arcuate portions for gripping the control rope of the elevator, a shaft provided with laterally extending fingers for moving the der for holding said jaws in a locked posijaws away from the control rope, a spring tion. 10 for forcing the jaws toward the control rope, In testimony whereof I, aflix my signaa tubular casing upstanding from said first ture in presence of two witnesses.

casing and provided Wltllfl shoulder and a GEORGE W. TAYLOR. spring pressed bolt slidably mounted within Witnesses:

said tubular casing and formed with a pro- F. J. HUMPI-IREY,

jection adapted to engage under said shoul- HOWARD SIBLEY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington. D. G.

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