Manual control of third rail power knockout

Details Manual control of third rail power knockout Manual control of third rail power knockout

1975-10-24

1977-08-16

Blix, Trygve M.

Electricity: transmission to vehicles

Systems of distribution

Safety cut-out

191 49, B60L 304, B60L 538

Patent

active

040420817

ABSTRACT:
Manual closure of a switch in a power-supply circuit to an explosive type bolt causes detonation of the bolt which releases a caged spring that thereupon is rendered effective to rock a lever in the direction to lift a current-collecting shoe out of engagement with the surface of a power-supply third rail thereby causing power knockout to the driving motors of an electrically propelled vehicle.

REFERENCES:
patent: 1020794 (1912-03-01), Bluhm
patent: 2117028 (1938-05-01), Larsson
patent: 2892904 (1959-06-01), Sierk
patent: 3740498 (1973-06-01), Herbert

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