US630780A - Overhead trolley. - Google Patents

Description

Patented Aug. 8, I899.

H. C. LOUDERMILCH.

OVERHEAD TBOLLEY.

(Application filed Dec. 10, 1898.)

(No Model.)

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HENRY O. LOUDERMILCH, OF' ENDERS, PENNSYLVANIA.

OVERHEAD TROLLEY.

SPECIFICATION forming part of Letters Patent No. 630,780, dated August 8, 1899. Application filed December 10, 1898. $eria1N0. 693,891. (No motlelJ 'To all whom it may concern:

Be it known that I, HENRY O. LOUDERMILCH, a citizen of the United States, residing at Enders, in the county of Dauphin and State of and more particularly to overhead trolleys and the object of the invention is to provide a special construction of trolleywheel by means of which it will be impossible for the trolley to jump the wire, and in case the wire should escape from the groove of the wheel the adjacent portions of said Wheel are of such construction as to guide the wire im mediately back into the groove.

Another object of the invention is to provide means by which the trolley can be quickly and easily reversed when the car is intended to move in an opposite direction.

With these various objects in view my invention consists in the peculiar construction of the various parts and in their novel combination and arrangement, all of which will be fully describedhereinafter and pointed out in the claim.

In the drawings forming part of this speci-' arranged the eccentric or spiral-shaped shoulders A said shoulders being so arranged that the wire will be guided back to the central groove A in case it should escape therefrom and rest upon either side of the wheel adjacent to the groove. The wheel A is j ournaled in a bracket B, which is formed with a shank- B, extending into a socket O,forn1'ed in the top of the adjustable trolley-pole C, said shank being secured by means of the set-screw C The trolley-pole rests within a tubular shaft D, rigidly mounted on a trunnion or rockshaft E, which is j ou rnaled in suitable brackets F, formed integrally with the base-plate F, which is rigidly secured to the top of the car. The pole O is adapted to slide up and down in the tube D and is normally held in an elevatedposition by means of a spring G,

surrounding the'said pole above the tubular shaft D andbearing upon a collar 0 formed upon the trolley-pole, and the movements'of the trolley-pole within the tubular shaft are limited by means of a set-screw H, which passes through the tubular shaft D and enters a vertical groove H, produced in the side of the trolley-pole, thereby forming a limited vertical movement of the trolley-pole, but preventing its rotation, and also acting as a stop to prevent it being projected too far upwardly or downwardly. Coiled springs I are attached to the base by being coiled around the rods J, which extend across the base and are fastened to the'brackets F, parallel with the trunnions or rock-shaft E and upon op posite sides thereof, the ends of the springs being fastened to the brackets, while their central portions are looped, as shown, and pass around the tubular shaft D from opposite sides, as most clearly shown in Figs. 3 and 4. By means of this construction the trolley-pole is heldin substantially an upright position when the car is moving in either direction, and in order to reverse the position of the trolley-pole it is only necessary to draw the pole slightly downwardly and then give it a direct pull in the direction it is desired to move it, thereby avoiding the necessity of revolving the trolley-pole. In order to so operate the pole, I attach ropes L to each side of the trolley-poles, adjacent to the top thereof, pass said ropes down through guide-eyes L, arranged upon the tubular shaft D, and then through guide-eyes L arranged upon the top of the car, said ropes extending in op posite directions to opposite ends of the car,

so that the trolley can be reversed from either end. It will thus be seen that I provide a simple and efficient construction of trolley-wheel proper, by means of which the wire will always be kept in the central groove, and it will also be noted that I provideathoroughly practical means for holding the trolley-wheel to the wire, which means can be reversed whenever it is desired tolnove' the car'in the ICO In an overhead trolley, a wheel having a central groove and shoulders or bosses arranged upon opposite sides thereof, the sides or edges of said shoulders being arranged in spiral or eccentric order and parallel with each other, substantially as and for the purpose described.

HENRY C. LOUDERMILCIT. lVitnesses:

F. LOUDERMILCH, SAMUEL F. BOUMAN.

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