Laboratory tested concept, for measuring thickness of overhead coal using noncontacting sensor system coupled to controller and high pressure water jet, allows mining machines to remove virtually all coal from mine roofs without danger of cutting into overlying rock.


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    Title :

    Measuring coal thickness


    Contributors:
    Barker, C. (author) / Blaine, J. (author) / Geller, G. (author) / Robinson, R. (author) / Summers, D. (author) / Tyler, J. (author)

    Published in:

    Publication date :

    1980-04-01



    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English


    Keywords :


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