Search Results
- IDNO:
- 002689
- Title:
- Inter-Floor Lift at Jamison Mine No. 9
- IDNO:
- 002690
- Title:
- Schematic Diagram of Coal-Fired Gas Turbine
- Date:
- ca. 1960-1970
- Description:
- Coal crushed to 3/16-inch by 0 is pumped to a pulverizer that grinds it to 90-per cent hrough 200-mesh. The product is mixed with air and burned in the combustors. Hot high-speed gas from the ash separators drives the turbine, air compressor, and electric generators. Exhaust from the turbine passes through a regenerator that preheats compressed air to the combustors. If used, please credit Bureau of Mines, U.S. Department of the Interior.
- IDNO:
- 002691
- Title:
- Miner Bathing in a Small Tub
- Description:
- Miner washing himself in a small washtub.
- IDNO:
- 002692
- Title:
- New Rotor Blade Design
- Date:
- 1960-1970
- Description:
- This mock-up shows the new blade design being tested by the Bureau of Mines. The base of the blade is thicker and there is a strip of titanium carbide at the point of previous severe erosion. If used, please credit Bureau of Mines, U.S. Department of the Interior.During LDC's final 1,100-hour run, this rotor blade (arrow) was undercut by ash flowing along the rotor past the tips of the stator blades. If used, please credit Bureau of Mines, U.S. Department of the Interior.
- IDNO:
- 002693
- Title:
- New Rotor Blade Design
- Date:
- 1960-1970
- Description:
- This mock-up shows the new blade design being tested by the Bureau of Mines. The base of the blade is thicker and there is a strip of titanium carbide at the point of previous severe erosion. If used, please credit Bureau of Mines, U.S. Department of the Interior.During LDC's final 1,100-hour run, this rotor blade (arrow) was undercut by ash flowing along the rotor past the tips of the stator blades. If used, please credit Bureau of Mines, U.S. Department of the Interior.
- IDNO:
- 002694
- Title:
- Summerlee Hoisting Room, C. B. Lee, Engineer, at the Controller
- Date:
- ca. 1900-1920
- IDNO:
- 002695
- Title:
- Cutting Coal by Machine
- IDNO:
- 002696
- Title:
- Coal Cutting Machine
- IDNO:
- 002697
- Title:
- Shuttle Car Being Loaded
- Description:
- Miner operates a shuttle car that is loaded with coal.
- IDNO:
- 002698
- Title:
- Electric Shuttle Car at Jamison Coal Mine No. 9
- IDNO:
- 002699
- Title:
- Shuttle Car Being Loaded
- Description:
- Minre watches as coal pours into the shuttle car.
- IDNO:
- 002700
- Title:
- Loading Machine Discharges Coal into Shuttle Car
- Date:
- undated
