Search
Search U.S. government technical reports digitized or harvested by TRAIL.
Keyword Search
25 results returnedSearch results
- Training with mine-rescue breathing apparatus
- Oxygen mine rescue apparatus and physiological effects on users
- Analyses of Mine and Car Samples of Coal Collected in the Fiscal Years 1913 to 1916
- Progress of investigations on liquid-oxygen explosives
- Timbering along the robbing line :factors influencing falls of roof in coal mines
- Stop, look and listen! :the roof is going to fall
- How are men killed in mines by falls of roof and coal?
- Area of unsupported roof in coal mines :conditions and factor[s] for consideration
- State laws relating to coal-mine timbering
- Falls of roof in bituminous coal mines :influence of the seasons and rate of production
- Method and cost of mining the Pittsburgh, or no. 8, coal bed in four eastern Ohio mines
- What the superintendent of a coal mine might do to prevent injury from falls of roof
- What the mine foreman can do to prevent injury from falls of roof in coal mines
- Reducing accidents from falls of roof in coal mines
- What the coal miners can do to prevent injury from falls of roof
- A study of falls of roof and coal in mines in the number 8 field of eastern Ohio
- Roof support in coal mines in the Irwin, Greensburg and Latrobe Basins, Westmoreland County, Pa.
- A study of falls of roof and coal in mines of Harrison County, West Virginia
- A study of mine roof of the Pittsburgh coal bed in the Pittsburgh mining district
- How to prevent death and injury from falls of roof in coal mines
- Timber withdrawing and devices used for this purpose in some coal mines
- Places of occurrence of injury from falls of roof
- A study of roof in Pennsylvania mines contiguous to Monongahela River
- A study of mine roof of the coking district of Western Pennsylvania
- Methods of development and pillar extraction in mining the Pittsburgh coal bed in Pennsylvania, West Virginia, and Ohio
