Safety detector for railroad switch points with remote contact m

Details Safety detector for railroad switch points with remote contact m Safety detector for railroad switch points with remote contact m

1991-10-15

1992-05-26

Werner, Frank E.

Railway switches and signals

Electric actuation

Switch signals

246162, B61L 510

Patent

active

051160064

ABSTRACT:
A safety detector for a railroad switch point having detector mechanism which is to be secured to a stockrail at the switch point where the stockrail is intended to be in contact with a corresponding switchrail, in which the detector mechanism is adjustably secured in a housing and has a spring loaded plunger assembly normally biased in the direction of the switchrail and reciprocably secured through the stockrail in alignment with the switchrail at the switch point, electrical contacts connected to the plunger assembly for reporting contact or the lack of contact between the switchrail and the stockrail, and a contact on the switchrail at the switchpoint for reciprocating the plunger against the electrical reporting contacts when the switchrail is in physical contact with the stockrail at the switchpoint.

REFERENCES:
patent: 500041 (1893-05-01), Swartz
patent: 975922 (1910-11-01), Adams
patent: 1781284 (1930-11-01), Karl
patent: 4316578 (1982-02-01), Reynolds et al.
patent: 4527736 (1985-07-01), Ortwein
patent: 4986498 (1991-01-01), Rotter et al.

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