Search U.S. government technical reports digitized or harvested by TRAIL.
Coal-cutting forces and primary dust generation using radial gage cutters
Testing modified coal-cutting bit designs for reduced energy, dust, and incendivity
Effects of water on coal cutting forces and primary dust distribution
Reduction in frictional ignition due to conical coal-cutting bits
In situ comparison of radical and point-attack bits
Use of an in-seam tester to determine effects of bit type on primary dust generation
Frictional ignition with coal mining bits
Frictional ignition of natural gas-air mixtures by alternative coal-cutter bit shank materials