Results 1 - 4 of 4

• Technology News 532 - Collapsible Drill Steel Enclosure for Reducing Roof Bolting Machine Drilling Noise
  9/1/2008 - Technology News
  Research conducted by NIOSH has focused on producing noise treatments to reduce noise generated by the Roof Bolting Machine. A drill steel enclosure for reducing roof bolting machine drilling noise has been developed as an engineering control.
• Technology News 480 - Controlled Start for Drill Motors on Roof Bolting Machines
  2/1/2000 - Technology News
  A bolter operator must manually place the drill steel and wrench into the drill chunk and then hold onto it as the drill is guided to the hole placement or the wrench is raised to the bolt head. During these actions, the inadvertent actuation of the dri...
• Technology News 447 - Dust Collector Discharge Shroud Reduces Dust Exposure to Drill Operators at Surface Coal Mines
  3/1/1995 - Technology News
  Dust collector discharge shrouds were used to reduce airborne respirable dust generated from emptying dry dust collectors on small truck-mounted drills at surface coal mines.
• Technology News 440 - Improved Dust Control for Surface Coal Mine Drills With Rotoclone Collectors
  10/1/1994 - Technology News
  A method is described to increase the dust-control effectiveness of the Rotoclone dry-dust collection systems used on surface coal mine drills.