US1553910A - Trolley wheel - Google Patents

Description

Sept. 15, 1925.

v G. s. MOORE TROLLEY WHEEL Filed May 51 1923 gwwntoz G1 les' 5. Moore Patented Sept. 15, 1925.

"1,553,910 UNITED STATES PATENT, OFFICE.

GILES S. MOORE, OF INDIANAPOLIS, INDIANA, ASSIGNOR T0 TROLLEY SHOE-WHEEL COMPANY, OF I'NDIAJHAZPOLIS,v INDIANA, A CORPORATION OF INDIANA.

TROLLEY WHEEL.

Application filed m 31, 1923. Seria1-No. 642,573.

To all whom it may concem:

Be it known that I, GILES S. Moons, a citizen of the United States, residing at Indianapolis, in the county of Marion and State of Indiana, have invented certain new and useful Improvements in Trolley Wheels, of which the following is a specification.

My said invention relates to a trolley having a sliding contact shoe for normal engagement with the wire. It is an object of the invention to provide means whereby the shoe will be replaced during backward movement of the trolley by awheel which can rotate backward freely and do away with any danger of displacingthe trolley from the wire. a

A further object of the invention is to provide a reversible trolley with a pairof friction shoes which may be alternately turned into operative position to increase the wear or to temporarily replace a worn shoe until the same can be repaired.

-,Referring to the accompanying drawings, which are made a art hereof and on which similar reference 0 aracters indicate similar parts,

Figure l is a side elevation of my device with parts broken away showing the trolley in the position assumed" during forward movementof the carinthe direction of the arrow, and

Figure 2 is a similar elevation of the device in the positionassumed .by it during rearward movement of the car in the direction of the arrow.

Inthe drawings reference character indicates a trolley wire of ordinary construction and 11 indicates a harp having forks 12 with a cross bar 13 between them, said forks being connected at theirv upper ends by a bolt 14 forming a pivot for a pair of brackets, only one of which appears in the drawings. The bracket has a pair of arms 15 at o posite sides and a central arm 16, a bolt 1'? connecting the arms 16 of the two brackets and providing a journal for a trolley wheel 18 having the usual flanges for engaging the wire. Preferably said trolley wheel has a tread consisting of a series of removable shoes as in Patent No. 1,382,664, of June 28, 1921. Each of the pairs of arms 15 supports at their outer end a shoe 19 adapted for sliding contactrwith the trolley wire, this shoe referably consisting of a substantially hol ow member of sheet iron having upstanding flanges between which is a removable wear plate 20 indicated in dotted lines in Figure 1. A connector 21 which may be of spring material is bentnear opposite ends at 22 to provide shoulders against which the adjacent ends of the shoes may rest, this being for convenience in positioning the shoes which are secured to the outer ends of the connector by lugs 23 passing through ears 24 on the shoes, the lugs being preferably headed over to secure the shoes 1n place. The connector midway between its ends is provided with a bolt 25 adapted to be positioned in one or theother of two holes indicated at.26 so as to strike against the cross bar 13 which acts as a stop to limit the movement of the shoeaway from working position. In the operation of my device it will be seen that the shoe which is inoperative position will remain in sliding contact with the trolley wire as indicated in Figure 1 so long as the car moves in a forward direction carrying the trolley with it. Should the movement of the car be reversed the friction between the wire andythe shoe combined with the action of gravity will move the parts toward the position indi-' cated in Figure 2 where therevolving wheel engages the wire. This action is facilitated by the relation of the shoes to the wheel, the adjacent noses of the shoes extending between the flanges of the wheel almost to the track for the wire. One of the abutments 27 will strike against the bar 13 (for which may be substituted a lug on the fork or any other equivalent structure) thereby limiting the pivotal movement of the brackets and the parts carried thereby. Should the shoe which is in working position become overheated or otherwise damaged or unduly worn the harp 11 can be rotated about the axis of the trolley pole so as to bring the other shoe 19 into operative position after which the operation of the device will be as before. It has already been explained how the bolt 25 acts as a stop to hold either shoe in working position against the wire.

art that various modifications may be made in the device without departing from the v It willibe obvious to those skilled in the Having thus fully described my said in vention, what I claim as new and desire to secure by Letters Patent, is:

1. A reversible trolley comprising a harp, a pair of sliding contact shoes,-and means on the harp for sustaining the shoes in angular relation to each other whereby rotation of the harp on its longitudinal axis will serve to bring the shoes alternately into position for engagementwith the trolley wire, substantially as set forth.

2. In a trolley, a harp, a pair ofsliding contact shoes carried thereby and adapted to be either alternately engaged with the trolley wire or both disengaged therefrom, a wheel for engaging the wire, said wheel and shoes having opposing flanges for guiding the wire, and said shoes have pointed ends located'between the flanges of the wheel, substantially as set forth.

3. In a trolley, a harp, a bracket pivotally supported thereby, a wheel on the bracket, shoes supported by the bracket at opposite sides of the wheel, and means permitting the wheel and one of theshoes to be brought alternately into engagement with the wire according to the direction of movement of the car, substantially as set forth. I

4. In a trolley, a reversible ha-rp, a bracket pivotally supported thereby, awheel on the bracket, shoes supported by the bracket at opposite sides of the wheel, and means permitting the wheel and one of the shoes to bebrought alternately into engagement with the wire in one position of the harp and the other shoe and the wheel in the revers'eposition of the harp, substantially asset forth.

5 In atrolley, a harp, abracket pivotally supported thereby, a wheel on the bracket,

shoes supported by the bracket at'o-pposite' sides of the wheel, means permitting the wheel and one of the shoes to be brought alternately into engagement with the wire according to the direction of movement of the car, and means for limiting the pivotal movement of the bracket in opposite directions, substantially as set forth.

6; In a trolley, a harp, a wheel supported thereby, a pairo'f shoes also supported by the harp, means permitting the wheel and one of the shoes to be brought alternately and automatically into engagement with the wire according to the direction of the movement of the car, and means permitting the other shoe and the wheel t'obe brought alternately andautomatically intoengagem'ent with the wire on reversal of the direction of move ment of the car by rotation of the trolley pole on its axis, substantially as set forth.

7. In a trolley, harp, a wheel supported thereby, a pair of shoes also supported by the harp, means permitting the wheel and one of the shoes to-be brought alternately intoengageme-ntwith the wire according to the direction of the movement of the car,

means permitting the other shoe and the wheel to be brought alternately into engagement with the wire on reversal of direction of movement of the car after rotation of the trolley pole on its axis, a connector between said shoes, an abutment carried by the harp, and stops on the connector or limiting the movement of the shoes and the wheel, substantially as set forth.

8. In a trolley, a harp, a bracket pivotally supported on the harp, shoes at opposite sides of the bracket, a wheel intermediate said shoes, a connector between said shoes, stops on the connector for locating the shoes, and means for securing the shoes to the connector, substantially as set forth.

9. In a trolley, a harp, a bracket pivotally supported on the harp, shoes atopposite sides of the bracket, a wheel intermediate said shoes, a connector between said shoes, an abutment carried by the harp, and stops on the connector for co-acting with said abutment to limit the pivotal movement of the bracket, substantially as set forth.

10. In a trolley, a harp, a bracket pivotally supported on the harp, shoes at opposite sides of the bracket, a wheel intermediate said shoes, .a connector between said shoes, said trolley being reversible by movement of the harp about the axis'of the trolley pole, an abutment on the'harp, and stops on' the connector adapted to engage said abutment to limit the pivotal movement of the bracket in either of said reversible positions, substantially as set forth.

11. In a trolley, a harp, a trolley wheel on the harp, a sliding Contact shoe-carried by the harp, flanges on the shoe and the,

wheel forming grooves for thetr'olley wire, and a nose on the shoe extending between the flanges on the wheel, substantially as set forth.

12. A trolley construction for making contact with a trolley wire, comprising asupportlng pole, a frame member pivotally mounted on said pole, a pair of oppositely positioned sliding contact shoes supported by said frame member, and a Wheel pivotal ly mounted on said frame member in position to be brought into contact with said trolley wire when moving in one direction and thrown out of contact when moving in the opposite direction.

13. .A trolley construction for making contact with a trolley wire, comprising a supporting pole, a frame member pivotally" mounted on' said pole, a pairof sliding con tact shoes positioned on opposite sides of said frame and having their ends joined by a rigid connection, and a flanged trolleywheel rotatably mounted on said frame having a portion tl'iereof' extending'between the'contact surfaces of saicbshoe's, whereby said wheel may be thrown into engagement with said trolley wire While moved inone:

I direction and be thrown out of engagement therewith when moved in the opposite dimotion.

14:. In a trolley for an electrically driven vehicle, a pair'of spaced sliding contacts, a rolling cont-act, and a reversible support for said contacts whereby the rolling contact engages the trolley wire'only when the vehlcle moves in one direction and the sliding.

contacts engage alternatively with the trolley Wire when the trolley is moving in the other direction, substantially as set forth.

15. In a trolley for vehicles, a trolley Wheel, a pair of sliding shoes and a reversible support for said parts whereby the shoes only may en age alternatively with the trolley wire as t e vehicle moves in one direction, and the wheel only as the vehicle moves in the other direction, substantially as set forth.

16. In a trolley for vehicles, a harp, a reversible pivoted support on the harp, a rolling contact carried thereby, sliding contacts on the support at opposite sides of the rolling contact, and means for limiting the swinging movement of the support on the harp in either of its interchangeable positions, substantially as set forth.

17. In a trolley, a harp and a pair of sliding contact shoes carried thereby adapted for alternate engagement with the trolley wire, substantially as set forth.

so I

18. In a trolley, a harp, a pair of sliding I contact shoes carried thereby adapted to be either alternately engaged with the trolley wire or both disengaged therefrom, and additional means for engaging the wire when both shoes are disengaged there-from, substantially as set forth. a

19. In a trolley, a harp, a pair of sliding contact shoes carried thereby and adapted to be either alternately engaged with the trolley wire or both disengaged therefrom,

and a Wheel for engaging the wire when both shoes are disengaged therefrom, substantially as set forth.

In witness whereof, I have hereunto set I my hand and seal at Indianapolis, Indiana this 29th day of May, A. D. nineteen hundred and twenty-three.

GILES S.MOORE. -1

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