Failures in proper operation are of three types; slow switching of relay, false pick-up, and failure of relay to switch; remedies are suggested. Paper presented before Am. Ry. Assn.
Track shunting by rail motor cars
Ry. Signaling
Railway Signaling ; 22 , n 4
1929
3 pages
1 Fig.
Article (Journal)
English
© Metadata Copyright Elsevier B. V. All rights reserved.
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