US471738A

US471738A - Safety-gate

Info

Publication number: US471738A
Authority: US
Publication date: 1892-03-29
Anticipated expiration: 1909-03-29

Description

C. H. & G. D. WBSTOVER.

(No Model.)

SAFETY GATE.

Patented Mar. 29, 1892.

Charles E ifestoaer 6%?{98 D. Westawer ATTORNEY.

/ UNITED STATES CHARLES H. WESTOVER AND PATENT OFF CE.

GEORGE D. WESTOVER, OF GRAND RAPIDS,

MICHIGAN.

SAFETY-GATE.

SPECIFICATION forming part of Letters Patent No. 471,? 38, datedMarch 29, 1892.

Application filed March 11, 1891.

To all whom, it may concern.-

Beit known that we, CHARLES H. WESTOVER and GEORGE.D. WESTOVER, citizens of the United States, residing at Grand Rapids, in the county of Kent and State of Michigan, have invented certain new and useful Improvements in Safety-Gates; and we do hereby declare the following to be a full, clear, and exact description of the invention, such will enable others skilled in the art to which it appertains to make and use the same.

Our invention relates to improvements in safety-gates for railway-crossings, bridges, and other like places; and it consists in certain new and useful devices for operating the same, hereinafter more fully described, and particularly pointed out in the claim, reference being had to the accompanying drawings, in which- Figure 1 is a side elevation of a device embodying ourinvention, and Fig. 2 an end view of the same.

Like letters refer to like figures.

The gate proper consists of a series of bars, or preferably iron pipes A and A, pivoted to each other'at their extremities, and also at a portion of their crossing-points, as shown, and arranged to turn on said pivots in avertical plane, the structure thus being capable of longitudinal extension, having the usual lazy-tongs movement. At opposite sides of the streetcrossing or other passage Way across which said gate is to be extended We erectposts B and B, of suitable height, between which is suspended a suitable track 0, of angle-iron, having its respective ends attached to said posts and sustained at intermediate points by suspension rods D, attached to the top of the posts B B, to which posts are also attached suitable guys D to counteract the strain of the rods D. One end of the gate is pivoted to the collars N N on the posts B B, and at various points in the same horizontal plane are pivoted to said gates suspension rods or cables L L, having at their upper ends hangers J, in which hangers are journaled grooved Wheels K, adapted to traverse the track 0. The gate is thus suspended froman elevated track and parts in both the Serial No. 3 84,604. (No model.)

free to expand or contract longitudinally. The lateral or vertical contraction as the gate is extended will be in opposite directions toward the plane of the pivot and points of attachment described. If it is desirable that the gate should run close to the surface below it, these pivots may be located along the bottom, which will then at all times remain in the same plane. To open and close this gate, we provide a shaft E, journaled in suitable bearings on one of the posts B and provided with a crank F and sprocket-Wheel G, which latter is connected with a sprocket- Wheel G on a counter-shaft E, journaled in hangers H H on the posts B B, opposite the end of the track 0. Said shaft E is also provided with asprocket-wheel G", engaging another sprocket-chain I, which chain extends parallel with said track to and around a Wheel G on the opposite post B, thence back to the wheel G". the outer hangerJ at M and serves to propel the same along the track 0 as the crank F is turned, and thus opens and closes the gate.

From the' foregoing description the operation of our device is obvious and needs no further explanation.

What We claim is The combination of posts at each side of the way to be closed, a gate of the class described pivoted at one end to said posts, an elevated track in line with said gate, wheels adapted to traverse said track and supporting said gate, a shaft having a crank and sprocket-wheel near the pivoted end of said gate, a counter-shaft near the end of said track having sprocketwheels, a sprocket chain connecting the crank-shaft and countershaft, and'a sprocket-chain extending from said counter-sh aft parallel with said track and around a wheel at the opposite end thereof, said chain being attached to the outer wheel on said track, substantially as described.

This chain is attached to In testimony whereof We affix our signatures