US682532A - Bridge-gate. - Google Patents

Description

N0. 682,532. Patenfed Sept. l0, I90l.

J. CUMMINGS.

BBIDGE GATE. (Application filed Dec. 11, 1900.)

2 Sheeis-Sheet lNVENTOf? M m m w (No Model.)

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A'TTOHN E Y S s n l5 Fergus co.. vno'mufwo. wumucmu o c No. 682,532. Patented Sept. 10, lam. J. cummmss.

BRIDGE GATE.

A lication filed Dec. 11, 1900. (No Model.) I 2 Sheets-Sheet 2.

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UNITED STATES PATENT OFEIcE.

JAMES CUMMINGS, OF VICTOR, COLORADO, ASSIGNOR OF ONE-HALF TO JAMES M. HALLY, OF SAME PLACE.

BRIDGIE-I-GATE.

SPECIFICATION forming part of Letters Patent No. 682,532, dated September 10, 1901. Application filed December 11,1900 Serial No. 39,539. (No model.)

ing is a specification.

My invention is an improved automatically-operating bridge-gate arranged to be projected across the roadway when the bridge is opened and to be readjusted clear of the roadway when the bridge is closed; and the in- 1 vention consists in certain novel construcside of the gate.

tions and combinations of parts, as will be hereinafter described and claimed.

In the drawings, Figure l is atop plan view of the invention as in use. Fig. 2'is a side view of the same, partly in section. Fig. 3 is a vertical longitudinal section on about line 3 3 of Fig. 4. Fig. 4 is a vertical crosssection on about line 4 4, Fig. 3, drawn along- Fig. 5 is a detail perspective view of the operating parts, and Fig. 6

roadway and maybe depressed to the level of the roadway when the bridge is closed and willrise automatically to form a barrier across the roadway when the bridge is open to permit the passage of; vessels. When a railroad-track is provided on the roadway, its rails may be out to receive the gate and the latter may be provided, when desired, with short rails-ections to fit in the notches of the rails and. form continuations of the.

rails when the gate is lowered. I provide a weight 'for elevating the gate and arrange the bridge to lower the gate against the action of the weight when the bridge is closed. The gate B includes a top cross-bar B and uprights 13*, preferably in the form of tubes,

the outer ones sliding on the guide-rods O, which are suitably held in place and are provided one for each of the end tubes B as shown. The weight D is in the form of a lever, suitably pivoted at D and having its arm D arranged for operation by inclines A at the ends of the bridge A and its other arm D weighted or heavier than the arm D? and operating upon an arm Eof a counter-lever E, which is pivoted at E and has its other arm E connected with the gate to operate the same. .In connecting the lever E with the gate it is preferred to provide its arm E with a cross-head E connected by links E with cross connections B at the lower end of the upright tube of the gate.

In operation the weight tends to raise the gate to form a barrier across the roadway when the bridge isopen. lf,'ho wever, the bridge is closed, the cams or inclines at the end thereof will ride upon the arm D of the weighted lever, will depress such arm, and

the lever E will be relieved of the weight of v the lever D and the gate will lower by grav ity to its depressed position, in which it will fOIlII IIO obstruction-across the roadway.

It Will be understood from the foregoing that the gate is entirely automatic in its operation and will not require a watchman or other attendant. When the bridge is closed,

level of the roadway, and the instant the bridge is opened the gate willbe operated to elevated position, as desired. Thus night'or daythe barrier is sure to be interposed across the roadway the instant the bridge is open and to remain so until the bridge is closed.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is

the barrier or gate will be lowered to the 1. The combination of the vertically- 11love able'gate, the lever connected with said gate,

and the intermediate lever overlying said first lever and arranged at one end to operate thereon and at its other end for operation by the bridge, substantially as set forth.

2.. The combination substantially as herein described of the gate having a cross-bar and tubes secured thereto, upright guide-rods on which said tubes slide, a weighted lever arranged at one end for operation and having its other end weighted, and a counter-lever connected at one end with the gate and arranged at its other end to be operated upon by the weighted end of the first-named lever substantially as described.

3. The combination in an automatic gate nections between said tubes at their lower ends, the counter-lever having a cross-head and links connecting the same with the cross connection between the tubes of the gate, the weighted lever arranged at one end to operate the counter-lever, and the bridge arranged to operate upon the opposite end of the Weight= ed lever substantially as set forth.

6. The combination with a vertically-movable gate of the counter-lever having a crosshead adjacent to the gate, and a plurality of links between said cross-head and the gate whereby the lever exerts a straight upward pull upon the gate substantially as set forth JAMES CUMMINGS;

WVitnesses:

A. BLANCHARD, H. T. SHERMAN.

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