Pennsylvania Railroad has completed application of all-relay type interlocking system, using centralized traffic control miniature lever type machine, for control of switches and signals in track layout of Delair, NJ, on Atlantic division, formerly operated by two mechanical and two electromechanical plants.


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    Titel :

    Four interlockings combined


    Weitere Titelangaben:

    Ry Signaling


    Erschienen in:

    Erscheinungsdatum :

    1938


    Format / Umfang :

    6 pages


    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




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