Large electropneumatic interlocking with all relay controls installed at Roanoke, Va; interlocking machine is of sloping panel type with miniature levers similar to those used on CTC machines; layout of tracks and signals shown.


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    Titel :

    Modern interlocking on Norfolk and Western


    Weitere Titelangaben:

    Ry Signaling Communications


    Erschienen in:

    Erscheinungsdatum :

    1951


    Format / Umfang :

    4 pages


    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




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