Great Northern advances scope of automatic interlocking; effects return of 146% on investment of $3700 in additional control equipment; circuits for automatic and remote control of junction interlocking; approach locking; table showing how various routes are controlled. (see also Ry Age v 92 n 12 Mar 19 1932 p 477-8)
Automatic and remote control for junction interlocking
Ry Signaling
Railway Signaling ; 25 , n 4
1932
4 pages
Aufsatz (Zeitschrift)
Englisch
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Automatic and remote control for junction interlocking
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