Electric lock; mechanical time release; interlocking lever circuit controller; car-retarder system; locking tolerances for rail locking devices used on interlocked drawbridges; protecting railroad crossings at grade where traffic conditions do not justify interlocking plant. (See also - discussion p 406-13) (mtg Mar 11 and 12 1935)
Committee II -- Interlocking
Assn Am Railroads -- Proc (Signal Sec)
1934
54 pages
Aufsatz (Zeitschrift)
Englisch
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Engineering Index Backfile | 1938
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