Changeover completed, at Vulcan, Ill, in Nov 1934 at cost of $ 1450; it is estimated that total savings will amount to 25% of total investment; General Railway Signal Co full-wave rectifiers, with 220-v primary installed; at each of six operated signals, battery of 16 primary cells is used for operating motor and holding coil; electric lamps replace oil lamps.


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    Titel :

    A.C. -- Primary system for automatic interlocking on Missouri Pacific


    Weitere Titelangaben:

    Ry Signaling


    Erschienen in:

    Erscheinungsdatum :

    1935


    Format / Umfang :

    2 pages


    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch






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