Automatic protection by radio to control shortarm gates at 2 adjacent railroad highway grade crossings 1693 ft apart in St. Albans, Vt; radio control equipment on locomotives in working yard, consists of tone generator, relay and circuit elements in case on front of which is telephone dial; unit is mounted under Motorola radio control head.
Radio control added to crossing gates
Ry Signaling Communications
Railway Signaling and Communications ; 56 , n 10
1963
2 pages
Article (Journal)
English
© Metadata Copyright Elsevier B. V. All rights reserved.
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