Interlocking installation at junction south of Ballston, NY; plug-in relays used throughout; new biased controllers used at switches; high speed 110-v switch machines operate quickly and have force to crush coal and ice.
Remote control junction on Delaware and Hudson
Ry Signaling Communications
Railway Signaling and Communication ; 44 , n 1
1951
3 pages
Article (Journal)
English
© Metadata Copyright Elsevier B. V. All rights reserved.
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