Reading uses C.T.C. system for handling end of three-track layout at Ewing NJ; 110-v d-c switch machines operate directly from rectifiers.
Remote control replaces interlocking
Ry Signaling
Railway Signaling ; 26 , n 9
1933
Aufsatz (Zeitschrift)
Englisch
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Remote control of switch replaces interlocking
Engineering Index Backfile | 1933
Remote control replaces mechanical interlocking on L and N
Engineering Index Backfile | 1936
An electric interlocking replaces a pneumatic
Engineering Index Backfile | 1919
|Automatic interlocking replaces gates at crossing
Engineering Index Backfile | 1933
All-relay interlocking replaces mechanical plant
Engineering Index Backfile | 1943