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You've searched: Mining in Butte

  • All fields: bag
(5 results)



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    • Leonard Mine Underground

    • 1920
    • Mines
    • Image taken underground in the Leonard Mine at the 2200-foot level of the ventilation fan with the fan bag. Dated on November 24, 1920.
    • Miners Stringing Messenger Wire

    • 1920
    • Mines
    • Image of miners stringing messenger wire to hold up the air bag fan in the Granite Mountain - Speculator Mine. These two mines were worked as one mine and belonged to the North Butte Mining Company.
    • Underground Fan Bag

    • 1920
    • Mines
    • A fan bag made of treated canvas is the 'pipe' that carries fresh air to the hot places in the underground mines. North Butte Mining Company was the 'inventor' of this improvement, which proved far superior to the tin stove pipe used previously.

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