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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    Title :

    Entry development with entry drivers


    Additional title:

    Min. Congress Jl


    Contributors:

    Published in:

    Publication date :

    1928


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English


    Keywords :


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