Device for railroad underpass includes 132 lb rail supported in iron brackets, bolted to plate girder of bridge; detector movement of 3/8 in. or more by high load on truck traveling beneath it, sets signals governing train movements over bridge to stop for bridge inspection; detectors are incorporated in Southern Pacific centralized traffic control territory in Oregon. (see also Ry Age v 140 n 6 Feb 6 1956 p 62)
Highway high-load detector saves train delays
Ry Signaling Communications
Railway Signaling and Communications ; 48 , n 11
1955
Aufsatz (Zeitschrift)
Englisch
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