US1504071A - Trolley wheel - Google Patents

Description

Aug. 5, 1924.

' G. s. MOORE mommy wnsm,

Filed May 31. 192 3 gwuwnio'c 6 He 5 5. Moore Patented Aug. 5, 1924.

GILES S. MOORE, OF INDIANAPOLIS, INDIANA, ASSIGNOR TO TRO'LLEY SHOE-WHEEL COMPANY, OF INDIANAPOLIS, INDIANA, A CORPORATION OF INDIANA.

TROLLEY WHEEL.

Application filed may 31,

To all whom it may concern: 7

Be it known that I, GILns 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 lVheels, of which the following is a specification.

My said invention relates to a trolley having a sliding shoe for normal engagement with the trolley wire whereby many advantages are obtained over the usual revolving wheel, as more fully set forthin my co-pending application No. 642,570 of even date herewith.

It is an object of my invention to provide a simple and inexpensive structure which shall be as compact as possible and which shall be efficient in use.

Referring to the accompanying drawings, which are made a part hereof and on which similar reference characters indicate similar parts,

Figure 1 is a side elevation of my device with parts broken away, the position of the trolley being that assumed when the same is moving forward in the direction of the arrow on said figure, and V Figure 2 is a similar view With the car moving rearward as indicated by the arrow on said figure.

In the drawings reference character indicates a trolley wire of ordinary construction and location. A harp 11 carried by a car has forks 12 connected by a bolt 13 which bolt forms a journal for the trolley wheel 14, the latter being of any preferred or desirable construction. It will be understood that various anti-friction and lubricating devices may be provided in connection with the journal for the wheel all as is usual in the art.

A forked bracket 15 straddles the wheel 14 and is journaled co-axially with the wheel, either on the bolt 13 or on some structure concentric therewith. The bracket at its upper end in Figure 1 is provided with a shoe 16 having upstanding lateral flanges 17 between which is located a wear plate 18 shaped to fit between the flanges and bent down at its forward end to conform in shape to the shoe which at this point extends down over the adjacent part of the wheel to protect the parts in case the trolley leaves the wire. Adjacent its rear end the wear 1923. Serial No. 542,571.

plate has a lug 19 fitting in a hole in the shoe and serving to position the parts relatively to each other. Any suitable means may be provided for holding the parts together positively. i

A pawl 20 is. pivotally mounted on the shoe near its forward end, a spring 21 being located between the tail of the pawl and a lug 22 on the shoe for forcing the pawl toward the wheel where it engages a tooth 23 provided by forming a notch in one or both flanges of the wheel. forward end of the harp a vertically ex tending stop 24: is adapted to engage the bracket in the vertical position of the latter for preventing excessive rearward move ment thereof, while another stop 25 on the bracket serves to engage the fork on the harp and so prevent excessive downward movement of the bracket.

While the trolley is moving forward the sliding contact shoe will remain in the position indicated in Figure 1 where it will be sustained by friction and prevented from further movement by engagement of the stop 24 with the bracket. Should the movement of the car be reversed the bracket will tilt aboutitsaxis into the position shown in Figure 2 with its stop 25 rest-ing on the harp. Should the trolley again start forward the wheel will be rotated to bring its tooth 23 against the pawl or dog 20, the latter being always impelled against the pe riphery of the wheel by its spring 21. When the tooth engages the dog further movement of the trolley will raise the shoe and force it against the wire after which the con tinued friction of the wheel and the Wire will bring the shoe into the position indicated in Figure 1 where it will remain during forward movement of the trolley.

It will be evident to those skilled in the art that my device may be modified in various respects and therefore I do not limit myself to what is shown in the drawings and described in the specification but only as indicated in the appended claims.

Having thus fully described my said invention, what I claim as new and desire to secure by Letters Patent, is:

1. In a trolley, a harp, a bolt connecting the forks of the harp, a trolley wheel rotatable on the bolt, a bracket pivoted on the bolt and straddling said wheel, a shoe at the free end of the bracket, and means At the tially as set forth.

3. In a trolley, a harp, a boltconnecting ,the' forks of the sharp, a bracket pivoted on the bolt,a sliding contact shoe'on the bracket, a trolley wheel rotatable on the bolt, and means whereby the one is automa'ti cally removed from the'wire and contact with the other established on reversal of; the direction of movement of the trolley said means including a dog on the shoe adapted toengage the wheel and be driven thereby, substantially as set forth.

t/In a trolley, a harp, a bolt connecting the'forks 'of the harp, a bracket pivoted on the bolt, a sliding contact shoe on the brack- -et, a wheel rotatableon the bolt, means whereby the one is automatically removed from the wire and contact with the other established on reversal of the direction of movement of the trolley said means including a dog on the shoe, and a tooth on the wheel for engagement by the dog, substantially as set forth.

5. In a trolley, a harp, a bolt connecting the forks of the harp, a wheel rotatable-on the bolt, a braeket pivoted'on the bolt, a V

sliding contact shoe integral therewith, a removable wear section on the shoe, a dog on the shoe, a tooth on the wheel, and means to force the dog toward the wheel whereby forward rotation of the wheel automatically bringsthe shoe into engagement with the wire, substantially as set forth.

6. In 'atrolley, asupport, a pivot on the support, a wheel on the pivot, and a bracket on the pivot, a shoe on the'bracket 'mov abletoward and from the trolley wire by movement of the bracket for bringing the shoe into engagement with the'wire'in'one direction of travel of the oarand' the wheel into such engagement in the opposite'direction of travel, substantially'as set forth.

7. In a trolley, a support, a pivot on the support, a wheel on the pivot, a bracket on the pivot, a shoe on thebracket movable toward and from the trolley wire by movement'of the bracket forbringing thershoe into engagement with the wire in one direction of travel of the car and the wheel into such engagement in the opposite direction of travel, and cooperating stops on the harp and thebracket to limit movement of the bracket on its pivot,substantially I as set forth. 7 g V In witness whereof I'have hereunto set my hand and'seal at Indianapolis, Indiana th'is'29th day of May, A. D. nineteen hundred and twenty-three.

GILES S. MOORE. [Ls] Witnesses; Y

E. W. BRADFORD, M. L. SHULER.

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