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 Signaling v 34 n 6 June 1941 p 300-3)
Non-Stop permissive signals on union pacific
Ry Age
Railway Age ; 111 , n 1
1941
2 pages
Article (Journal)
English
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Non-Stop permissive signals on union pacific
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