Chicago Great Western and Chicago and North Western effect total net return of 23% on investment of $10,500; smashboards required; circuits utilize interlocking relays for directional control; control relays of interlocking type; operating features.
Automatic interlocking replaces mechanical plant
Ry Signaling
Railway Signaling ; 25 , n 2
1932
3 pages
Article (Journal)
English
© Metadata Copyright Elsevier B. V. All rights reserved.
Automatic plant replaces mechanical interlocking
Engineering Index Backfile | 1937
Automatic interlocking replaces mechanical
Engineering Index Backfile | 1936
Automatic interlocking replaces mechanical plant in Canada
Engineering Index Backfile | 1936
Automatic interlocking replaces mechanical plant at crossing
Engineering Index Backfile | 1933
All-relay plant replaces mechanical interlocking
Engineering Index Backfile | 1938