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Cabs and canopies for underground coal mining equipment :proceedings

Automated temporary roof support (ATRS) systems for roof bolting machines :proceedings

The Bureau of Mines noise-control research program :a 10-year review

Test apparatus for measuring sound power levels of drills

Noise test report :handheld pneumatic rotary drill

Neutralization of acidic discharges from abandoned underground coal mines by alkaline injection

Published Year

• 1980-1989 (5)
• 1990-1999 (1)

Subject

• Abandoned coal mines--Pennsylvania (1)
• Acid mine drainage (1)
• Mine railroad cars--Safety measures--Congresses (1)
• Mine roof bolting--Automation (1)
• Mineral industries--Noise (1)
• Mining machinery--Automation (1)
• Mining machinery--Safety measures--Congresses (1)
• Neutralization (Chemistry) (1)
• Pneumatic tools--Noise (1)
• Rock-drills--Noise (1)
• Rotary percussion drills--Noise (1)
• Sodium hydroxide (1)

Author

• Aljoe, William W. (6) *
• Bartholomae, R. C. (2)
• Stein, Robert R. (2)
• Bobick, T. G. (1)
• Hawkins, Jay W. (1)
• Redmond, Gerald W. (1)

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