New signals installed between Cheyenne, Wyo, and Buford, on ascending grade permit elimination of train stops at what were formerly Stop-and-Proceed signals; "light-out" relays used. (see also Ry Age v 111 n 1 July 5 1941 p 24-5)
Non-Stop permissive signals on union pacific
Ry Signaling
Railway Signaling ; 34 , n 6
1941
4 pages
Aufsatz (Zeitschrift)
Englisch
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