Two examples in which electrical operation of gates from distant signal box eliminates necessity for signal box at crossing; wiring diagram for electrically operated gates. (see also Ry. Gaz., vol. 53, no. 3, July 18, 1930, pp. 88-89, 6 figs)
Economies in public road level crossing operation
Ry. Engr
Railway Engineer ; 51 , n 606 ; p 275-279 + 285
1930
10 Figs.
Aufsatz (Zeitschrift)
Englisch
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