US847701A - Trolley and crossover. - Google Patents

Description

91%292 awn I No. 847,701. Q BATENTED. MAR. 19, 1907.

Y F. & P; B. SGHMUNK.

TROLLEYYAND CROSSOVER. I

' APPLIOA'IION FILED JULYIO, 1906.

B SHEETS-SHEET -1.

THE NORRIS PETERS col, WASHINGTON, 1:. c.

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FREDRICH SCHMUN K AND PAUL B. SCHMUN K, OF BEAVER FALLS,

PENNSYLVANIA.

TROLLEY AND OROSSOVER.

Specification of Letters Patent.

llatented. March 19, 1907.

Application filed July 10, 1906. Serial No. 825,467.

and PAUL B. SOHMUN K, citizens of the United- States of America, residing at Beaver Falls, in the county of Beaver and State of Pennsylvania, have invented certain new and useful Improvements in Trolleys and Crossovers, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to trolley-guards for electric railw ys, and its primary object is to provide a trolley with simple and effective means for preventing it from leaving the wire accidentally, but so constructed as to permit the trolley to be readily withdrawn from and applied to the conductor-wire when desired.

A further object of the invention is to provide a crossover device especially adapted for use in connection with the improved trolley-guard and of such construction as to adapt it to support the trolley-Wires of crossin lines in such a manner as to allow the trolleys to readily pass or cross over wires arranged at right angles'to the wire upon which the trolleys travel.

The construction of the improvement will be fully described hereinafter in connection with they accompanyin drawings, which form a art of this speci cation, and its-features 0i novelty will be set forth in the appended claim.

In the drawings, Figure 1 is a side elevation of a trolley-guard embodying the invention. Fig. 2 is a vertical section of the same. Fig. 3 is a front elevation of the trolley and guard. Fig. 4 is a transverse section of the same. Fig. 5 is a view in perspective of the crossover device adapted for use with the trolleyguard. Fig. 6 is a front elevation of the same. Fig. 7 is a top plan view, and Fig. 8 is a vertical section of the trolley and guard.

The reference- numerals 1 and 2 designate parallel arms of spring metal connected at their lower ends by a socket 3, adapted tobe attached to the upper end of a trolley-pole. (Not shown.) Each of these spring-arms is formed with a bearing 4 for the journal 5 of the grooved trolley-wheel 6, the latter being adapted to run upon the wire 7. The journal 5 is in the form of a bolt secured by a nut 8. The arms 1 and 2 project above the trolley 6, and to the inner side of each of said arms adjacent to its'upper end is secured a guard comprising an approximately semispherical or cup-shaped plate 9, having a central opening an antifriction ball 11. The oppositelydispcsed plates 9 inclose the balls, and said plates are secured to the spring-arms by bolts 12. Thus theballs are held in position between the plates 9 and the inner surfaces of the arms 1 and 2, a portion of the balls protruding through the openings in the plates, so that the balls bear upon each other under the resilient pressure of the spring-arms. The lower sides 9" of the plates are flattened for the purpose hereinafter explained.

The utilityand operation of the device as thus far described will be readily understood. The balls are normally held together, and the conductor-wire 7 is confined between the arms, which serve as a guard to prevent the accidental disengagement of the wheel from the wire, the flattened faces 9 of 10, through which projects.

the plates holding the trolley to thewire.

When it is desired to release the trolley from the wire, a pull upon the usual trolleyrope employed for shifting trolleys will draw the balls into contact with the wire, which forces the spring-arms apart, so that the trolley-pole can be reversed. It will be ap parent that the trolley can be engaged with the wire in the same manner, the spring-arms readily yielding outward for this purpose under the force of the pull-rope.

WVe preferably provide lubricating-openings 13 in the spring-arms adjacent to the cupshap'ed plates for supplying oilto the antifriction-balls.

Figs. 5 to 8, inclusive, show a slightlymodified construction of the trolley-guard, adapting it for use with a crossover device, which will now be described.

The numeral 14 designates an arch-shaped frame adapted to be suspended in any suitable manner' and having oppositely-extending arms 15 to support conductor-wires 16 and 17, connected by a wire 18, extending over the frame 14. Depending centrally from the frame 14 is a support 19 for a wire 20, the latter extending above and at right angles to the wires 16 and 17. The supporting-arm 19 is provided with oppositely-projecting horizontal arms 21 for the purpose hereinafter explained,

Supported within suitable bearings 22 and 23 of the frame 14 are two oppositely-disposed L-shaped arms 24, the upper ends of which project above the frame 14 and are connected together by horizontally-disposed arms 25, and a coil-spring 26, connecting the inner ends of the arms 25.

A trolley traveling on the line represented v by the wires 16 and 17 passes along under the neotion with the arm 19 of the crossover, the

flattened sides 9 of the plates permitting them to pass over the arms 21, which, together with the depending support 19, guide the movement of the trolley through the WVhat we claim, and desire to secure by Letters Patent, is

The combination with a crossover comprising an arcl1sl1aped frame having horizontal' wire-supporting extensions, and a central depending guide provided with oppo sitely-projecting arms, of oppositely-disposed L-shaped arms supported in bearings of the frame, a spring connecting the upper ends of said L-shaped arms, and a trolleyguard comprising parallel spring-arms, cupshaped plates secured to the inner sides of the spring-arms, near their upper ends and beveled on their lower sides, antifrictionballs loosely supported by said plates and fadapted to be struck by said depending l guide to separate said springar1ns.

In testimony whereof we allix our signag tures in the presence of two witnesses.

FRIEDRICH. SCHMUNK. PAUL B. SCHMUNK.

Witnesses J. H. SHUSTER, JOSEPH BECKER.

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