Operations of Winding Gulf Collieries, to open 4000 acres of West Virginia No. 4 Pocahontas coal lying 345 ft below their worked-out Beckley seam; No. 4 is 38 to 44 in. thick; entry development plan; crew organization; rock work; slate disposal.


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    Title :

    Economical entry driving with duckbills


    Additional title:

    Mechanization


    Contributors:
    Jones, E.E. (author)

    Published in:

    Mechanization ; 12 , n 6


    Publication date :

    1948


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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