Entry development with McKinlay entry driver; description of machine; method of operation; cutting and blasting eliminated; roof not broken or disturbed by shooting; ventilation with blower and tubing; time studies and operating records; advantages over hand mining. Presented at convention of Practical Operating Men, Cincinatti.


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    Titel :

    Entry development with entry drivers


    Weitere Titelangaben:

    Min. Congress Jl


    Beteiligte:
    Foster, J.R. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    1928


    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :


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