Method for monitoring the condition of rail switch points

Details Method for monitoring the condition of rail switch points Method for monitoring the condition of rail switch points

1992-05-08

1993-10-19

Werner, Frank E.

Railway switches and signals

Electric actuation

Switch signals

246162, B61L 510

Patent

active

052538303

ABSTRACT:
In a method for monitoring the condition of rail switch points and for detection of premature abrasive wear-and-tear in the region of the tongue switching rail (3) of the points, the signals from at least one proximity sensor (2) in the region of the tongue switching rail (3) of the points are evaluated when the tongue switching rail is travelled upon, and the smallest measured value of the separation distance (l) during the travel is stored in memory. The smallest measured value stored in memory and at least a first limiting value for the smallest separation distance are compared with one another and, when the smallest measured value in memory exceeds this first limiting value, a warning signal is generated.

REFERENCES:
patent: 975922 (1910-11-01), Adams
patent: 2740041 (1956-03-01), Marcum
patent: 4207569 (1980-06-01), Meyer
patent: 4986498 (1991-01-01), Rotter et al.
patent: 5116006 (1992-05-01), Ocampo

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