US438359A

US438359A - Trolley-wheel for electrically-propelled vehicles

Info

Publication number: US438359A
Authority: US
Publication date: 1890-10-14
Anticipated expiration: 1907-10-14

Description

(No Model.)

L. PFINGST.

TROLLEY WHEEL FOR ELEGTEICALLY PROPELLBD VEHICLES.

No. 438,359. Patented Oct. 14, 1890. v

'I/IIIIIIIYIIIIIIIIIIIIIII I UNITED STATES PATENT OFFICE.

LOUIS PFINGST, OF BOSTON, MASSACHUSETTS.

TROLLEY-WHEEL FOR ELECTR'ICALLY-PROPELLED VEHICLES;

SPECIFICATION forming part of Letters Patent No. 438,359, dated October 14:, 1890.

Application filed July 14, 1890.

.To all whom it may concern:

Be it known that I, LoUIs PFINGST, of Boston, in the county of Suffolk, State of Massachusetts, have invented certain new and use 5 ful Improvements in Trolley-Wheels for Electrically-Propelled Vehicles, of which the following is a description sufficiently full, clear,

. and exact to enable any person skilled in the art or science to which said invention appertains to make and use the same, reference being had to the accompanying drawings, forming part of this specification, in which- Figure 1 is a side elevation of my improved trolley, and Fig. 2 a vertical transverse section of the same.

Like letters of reference indicate corresponding parts in the different figures of the drawings.

My .invention relates to means for mounting the trolley-wheel on the pole of electric ally-propelled vehicles, it being especially adapted for use on electrically propelled street-cars where an overhead conductingwire is employed; and it consists in certain novel features hereinafter fully set forth and claimed, the object being to produce a simpler, cheaper, and more effective device of this character than is now in ordinary use.

The nature and operation of the improvement will be readily understood by all conversant with such matters from the following explanation.

In the drawings, A represents the trolleypole, which may consist of a metallic tube, and is pivoted centrally to the monitor-roof of the car in the usual manner. An approximately oval-shaped plate B has a sleeve d formed at its lower end, adapted to receive the top of the pole A. A flange f on said sleeve proj ects inwardly toward the main plate B. A companion plate has a boss 9, adapted to rest on the flange f. Inwardly-projecting tubes h t' are formed on the plates B O,which register with each other when in position, and are fitted to receive a screw-bolt- 70, whereby said plates are secured together. The plates B O are tapped centrally and connected through the opening thus formed by a screwbolt m, which is surrounded by a metallic 5o bushing 10. Metallic rings q are disposed on Serial No, 358,645. (No model.)

said bushing adjacent to the inner face of said plates, and are respectively disposed in annular grooves formed therein.

Thetrolley-wheel His j ournaled on the bushing 19, said wheel being grooved on its periph- 5 5 ery at r to receive the overhead wireIand provided with annular rabbets t at its center. Balls 00 are disposed in the rabbets of the wheel H and bear on the bushing p and against the rings q, said balls forming a ballbearing for said wheel. By turning out the screws m 70 and removing the face-plate O the different parts may be readily detached and replaced when worn. By providing the wheel H with the ball-bearings, as described, said wheel will retain its position on the over head wire without binding while passing around the curves in the track much more readily than wheels mounted in the ordinary way. Moreover, the wheel H as it becomes worn can be replaced by removing the faceplate in the manner described without unshipping the pole.

Having thus explained my invention,what I claim is- 1. In a device of the character described, a face-plate provided with a sleeve or socket for the trolley-pole, in combination with a companion plate bolted thereto and a trolleywheel journaled by ball-bearings between said So plates.

2. In a device of the character described, a faceplate provided with a socket for the trol-. ley-pole, a companion plate bolted thereto, a bushing on a bolt connecting said plates, a trolley-wheel having centrally-arranged annular rabbets, and balls disposed in said rabbets and bearing on said bushing, substantially as and for the purpose set forth.

3. In a device of the character described, the combination of a face-plate provided with a socket for the trolley-pole, a companion face-plate bolted thereto, a bushing ona bolt connecting said plates,wear-rings disposed on said bushing and in grooves in said plates, a 5 rabbeted trolley-wheel, and balls disposed in said rabbets and bearing against said bushing and rings, substantially as and for the purpose set forth.

4. In a device of the character described,

the plate B, provided with the socket d, in combination with the plate 0, secured thereto by bolts on k, the bushing 19 on the bolt m, the grooved wheel H, provided with the rabbets t, and the bearings 00, arranged to operate substantially as described.

5. In a device of the character described, two face-plates detachably secured together and adapted to be attached to the trolleypole, in combination with a trolley-Wheel jour- 1o naled by ball-bearings between said plates, substantially as described.

LOUIS PFINGST.

Witnesses:

O. M. SHAW, K. DURFEE.