Both compressed air and trolley electric locomotives are used; haulage track 30 in. gage, with 40 and 60 lb rail; frogs are solid manganese steel; ties 6 by 8 in. by 5 ft 2 in. sawed Oregon fir; 6 shafts and 3 tunnels; shaft dimensions; skip loading stations; electric hoisting practice.


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    Titel :

    Haulage and hoisting at mines of inspiration consolidated copper co


    Weitere Titelangaben:

    Min Congress J


    Beteiligte:
    Stoddard, A.C. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    1934


    Format / Umfang :

    2 pages


    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




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