Automatic-block signal system used on single track located over or to right of track governed; red, yellow, and green are used; energy is supplied by storage batteries trickle charged from commercial sources; current for lamps is taken directly from a.c. lines with automatic cut over in case of failure; absolute permissive block system provides head-on protection from station to station; tonnage markers permit heavy trains to pass red signals on grades where if stopped these trains could not be started; circuits are designed on closed-circuit principle.


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    Titel :

    Railway train signal practise


    Weitere Titelangaben:

    Am. Inst. Elec. Engrs. Jl


    Beteiligte:
    Gault, P.M. (Autor:in)


    Erscheinungsdatum :

    1929


    Format / Umfang :

    4 pages


    Anmerkungen:

    2 Figs.


    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch





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