At Knoxville, Tenn, Southern Railway has installed electric interlocking which includes crossovers and switches at two ends of passenger station, as well as leads to freighthouses; switch machines are Model 56, operated at 20 v d-c, supplied from sets of A4 H Edison storage battery; all signals are of dwarf type.
Interlocking expedites passenger station moves
Ry Signaling Communications
Railway Signaling and Communication ; 44 , n 2
1951
Article (Journal)
English
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