High current harp for an electric trolley bus

Details High current harp for an electric trolley bus High current harp for an electric trolley bus

1995-03-08

1996-04-09

Bucci, David A.

Electricity: transmission to vehicles

Collectors

Trolley

B60L 508

Patent

active

055052835

ABSTRACT:
A harp for an electric trolley bus having a channeled shoe member for sliding engagement with a conducting wire. The channeled shoe member is mounted onto the uppemost member of a ball-and-socket swivel joint, and includes an improved shunt member extending through the lowermost member of the ball-and-socket swivel joint for carrying electric current from the swivel joint to a transmission cable provided to deliver electric current into the trolley bus. The shunt comprises a flexible length of conductive cable, with a graphite contact secured at a first end, and a copper contact secured at a second end, and includes a coil spring to maintain the two contacts biased against their respective adjacent conducting elements, and the graphite contact is adapted to be worn by the swiveling action of the swivel joint to mate with the micro-spherical topography of the adjacent contacting portion of the ball-and-socket swivel joint.

REFERENCES:
patent: 1864026 (1932-06-01), Moore
patent: 1893383 (1933-01-01), Way
patent: 2044886 (1936-06-01), Larsson
patent: 2155242 (1939-04-01), Ryan
patent: 2712041 (1955-06-01), Livingstone
patent: 2834841 (1958-05-01), Waugh
patent: 2855470 (1958-10-01), Waugh

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