US733015A - Trolley. - Google Patents

Description

PATENTED JULY '7, 1903,

A. S. DEEM.

TROLLEY.

APPLICATION FILED JULY 9. 901. RENEWED MAY 5, 1903.

N0 MODEL.

.UNITED STATES Patented July 7, 1903.

PATENT Unmet.

ARTHUR S. DEEM, OF READING, PENNSYLVANIA, ASSIGNOR OF ONE-THIRD TOIIARRY S. DEEM, OF READING, PENNSYLVANIA.

TROLLEY.

SPECIFICATION forming part of Letters Patent No. 733,015, dated July 7, 1903. A li ation fil d July 9, 190 1. Renewed May 5, 1903: Serial No. 155,789. (No model.)

To all whom it may concern:

. zen of the United States, residing at Reading,

in the county of Berks and State of Pennsylvania, have invented certain new and useful Improvements in Trolleys; and Ido hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to improvements in trolleys for electric-railway cars employing overhead electric conductors; and the object of the invention is to provide a trolley by the use of which the electric current will not be broken by reason of the trolley-wheel becoming disengaged and to afford increased contact for electric current by virtue of a plurality of contact-wheels.

My improved trolley cannot jump the wire and cause damage thereto or to the stringers.

The invention is fully described in the following specification and clearly illustrated in the accompanying drawings, in which-- Figure 1 is a longitudinal sectional view of my trolley. Fig. 2 is a plan view of the same.

Fig. 3 is a cross-sectional view taken on line as w of Fig. 1. a.

The harpA is of the usual construction, having jaws a, to which the trolley is pivoted at its center on a shaft b.

The device consists of a casing B and has mounted therein two wheels 0 and '1), one near either end and at equal distances from the center shaft b. The forward wheel may, if preferred, be supplied with any suitable attachment (not shown) for removing ice and sleet from the wire, and the rear wheel will act as the current-conductor. On the center shaft b inside the casing I have mounted a wheel E in alinement with the wheels 0 and D, having bevel-gears e on both sides thereof adapted to mesh with pinions F, which pinions are mounted on the inside of the casing Bin the bearings f. To the upper end of the pinions F, which project through said bearings, I secure fingers g, adapted to reach almost to the center line longitudinally of the trolley. To the wheel E, I secure coiled springs it, one at either side and drawing in it opposite-directions, tending to keep it in normal position and holding the fingers toward each other These fingers are sufficiently above the wire line to allow it to pass along without contacting therewith constantly. At a suitable point on the wheel E, I secure the trolley-rope H, the free end of which passes over said wheel and thence from the pole to the car.

When it is desired to remove the trolley from the wire, the rope H is drawn down as usual, and the first act-ion will be the revolving of the wheel E, which meshes with the gears on the pinions F, turning them, and with them the fingers g, which are rigidly secured thereto, thus permitting the trolley to be drawn away from the wire. When the rope is released, the springs h Will return the fingers to their normal positions. Thus it will be seen that when the trolley is in position on the wire it will be impossible for it to become disengaged therefrom by any other means than opening the fingers, and any ver tical strain thereon will not afiect them.

Having thus fully described myinvention, what I claim, and desire to secure by Letters Patent,.is I

1. In a trolley, a casing pivotally mounted atits center on a harp a plurality of contactwheels mounted therein, a spring-actuated gear-wheel mon nted on the central sh aft, having beveled faces meshing with pinions mounted in said casing and carrying fingers on their upper ends, and a cord secured to said gear-wheel through which the fingers maybe operated, substantially as set forth.

2. A trolley comprising duplicate contactwheels mounted in a casing, said casing being pivoted to a harp and carrying a pair of fingers above the line of the wire, operated through bevel-gears located in said casing, by means of a cord, and springs secured to said gear-Wheel adapted to keep it in normal position substantially as and for the p u'rpose set forth.

3. A trolley comprising a plurality of contact-wheels a casing 13 beveled gears mounted in said casing B, the gear-wheel being the fingers may be operated]ateral1y,-allsubmounted on the center shaft pinions inside stantially as described. IO

' the said ca'sing,said pinions meshing with said In testimony whereof I affix my signature gear-wheel and having fingers arranged at in presence of two witnesses.

5 right angles to their axial line and adapted to ARTHUR S. DEEM.

extend toward each other, sufficiently to Witnesses overlap the trolley-wire, a flexible cord at- GEO. M. MILLER,

tached to said bevel gear-Wheel through which 0. J. SMITH.

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