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6 results returnedHot milling of rock-drill bits at the mines of the Vinegar Hill Zinc Co., Platteville, Wis.
Underground mill at the Doyle Mine, Shullsburg, Wis.
Dust produced by drilling when water is sprayed on the outside of the drill steel
Mount Weather testing adit :progress report 1
Relative air dustiness during cycle of operations at Mount Weather Testing adit
Published Year
Subject
- Bits (Drilling and boring) (3)
- Drilling and boring (3)
- Coal mines and mining--Dust control (2)
- Zinc mines and mining--Wisconsin (2)
- Lead mines and mining--Wisconsin (1)
- Rock-drills (1)
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