Route levers and unique circuits used to control two switches and four signals; automatic plant includes operation of junction switch.
Great northern automatic signal installation includes remote-control and automatic interlockings
Ry. Signaling
Railway Signaling ; 22 , n 11
1929
4 pages
13 Figs.
Article (Journal)
English
© Metadata Copyright Elsevier B. V. All rights reserved.
Automatic interlockings on frisco
Engineering Index Backfile | 1937
Automatic interlockings show economy
Engineering Index Backfile | 1926
|Remote control interlockings on Pennsylvania
Engineering Index Backfile | 1938
Rock island installs several automatic interlockings
Engineering Index Backfile | 1927
|Automatic interlockings on the G. N.
Engineering Index Backfile | 1924