Search
Search U.S. government technical reports digitized or harvested by TRAIL.
Keyword Search
32 results returnedSearch results
- Explosibility of coal dust from four mines in Utah
- Propagation of flame in mixtures of natural gas and air
- Rock-dust barriers for coal mines
- Coal-dust explosibility factors indicated by experimental mine investigations 1911 to 1929
- What do we know about the explosibility of coal dust in mines?
- Coal-dust explosions in mines caused by direct electrical ignition
- The effectiveness of different-size rock dusts in preventing coal-dust explosions in mines
- Tests of the strength of concrete stoppings designed to resist the pressure of explosions in coal mines
- Some experiments on the initiation of coal-dust explosions by gas explosions
- Experiments to determine the minimum amount of coal-dust required for propagation of a mine explosion
- Compressibility and bearing strength of coal in place :tests of lateral compression of Pittsburgh coal bed
- The Experimental mine of the United States Bureau of Mines
- Notes on testing and explosibility of coal dusts and a proposal to have an international test method
- Tests of the compressibility and bearing strength of potash salt
- Studies of roof movement in coal mines.
- Tests of a barrier using rock dust in paper bags
- Compression tests of roof-salt slabs supported by potash salt pillars
- Studies of roof movement in coal mines.
- Experiments on strength of small pillars of coal in the Pittsburgh bed
- Notes on large-scale tests of the explosibility of coal dusts made in the United States and Great Britain
- Tests of salt as a substitute for rock dust in the prevention of coal-dust explosions in mines
- Studies of roof movement in coal mines.
- Explosibility of semianthracite, low-volatile bituminous-coal, and medium-volatile bituminous-coal dusts
- Characteristics of fuel pitches and their explosibility in pulverized form
- Use of wetting agents for allaying coal dust in mines
- Methods of sampling and analyzing coal-mine dusts for incombustible content
- Studies of roof movement in coal mines.
- Progress report :experiments on strength of small pillars of coal in the Pittsburgh bed
- A study of timber decay in the Crucible Mine of the Crucible Fuel Co.
- Effect of changes in moisture and temperature on mine roof.
- Tests in the Experimental coal mine to determine requirements for preventing propagation of coal-dust explosions in rooms
- Tests on the ignition of natural gas-air mixtures by permissible explosives in the experimental coal mine
