Search Results
- IDNO:
- 002641
- Title:
- Coal Nearly Ready to be Shot Down
- Description:
- Notice the preparatory cut and the 3 charge-holes near floor of the mine.
- IDNO:
- 002642
- Title:
- Breaker Shot
- Description:
- 'Probably no phase of coal preparation requires the supervision and care that must be given to shooting practices. The type of explosive used is a safety powder known as "Duobel" and has been selected because it is most suitable for the coal mined in the White Oak Mines. Not only must the explosive be of the best quality and best suited for the work of breaking down the coal, but its use must be supervised and restricted. The proper amount to use; the size of the cartridge; the manner of tamping and many other details are looked after so that a maximum of lump and coarse coal is produced after shooting. This view shows the working place after the 'breaker shot' has been fired.'
- IDNO:
- 002643
- Title:
- Breaker Shot
- Description:
- 'Probably no phase of coal preparation requires the supervision and care that must be given to shooting practices. The type of explosive used is a safety powder known as "Duobel" and has been selected because it is most suitable for the coal mined in the White Oak Mines. Not only must the explosive be of the best quality and best suited for the work of breaking down the coal, but its use must be supervised and restricted. The proper amount to use; the size of the cartridge; the manner of tamping and many other details are looked after so that a maximum of lump and coarse coal is produced after shooting. This view shows the working place after the 'breaker shot' has been fired.'
- IDNO:
- 002644
- Title:
- Area worked by Coal Cutters
- Description:
- Print possibly overexposed.
- IDNO:
- 002645
- Title:
- Interior of New England Coal Mine
- Description:
- Looking down a mine shaft.
- IDNO:
- 002646
- Title:
- Area Worked by Coal Cutters
- IDNO:
- 002647
- Title:
- Shot Down Coal at Jamison Coal Mine No. 9
- Description:
- Miner works on pile of shot down coal.
- IDNO:
- 002648
- Title:
- Proper Positioning of the Turbine Rotor in Its Casing
- Date:
- 1960-1970
- Description:
- J.P. McGee, Acting Research Director, and Jack Smith, in Charge of the Gas Turbine Development Project discuss proper positioning of the turbine rotor in its casing.
- IDNO:
- 002649
- Title:
- Miner Testing for Gas
- IDNO:
- 002650
- Title:
- Miner Roof Bolting
- IDNO:
- 002651
- Title:
- Miner Placing a Charge
- IDNO:
- 002652
- Title:
- Coal on Belt at Jamison Coal Mine No. 9
