Methods and Costs of Rock Drilling at the Silver Summit Mine, Hecla Mining Co., Shoshone County, Idaho PDF Download
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Author: D'Arcy Banister
Publisher:
ISBN:
Category : Drilling and boring
Languages : en
Pages : 28
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Book Description
Drilling practices at the Silver Summit mine in Shoshone County, Idaho, and the steps taken to increase drilling efficiency are described for the 1952 to 1958 operating period. Mining and development methods are outlined, and drilling equipment and practice are discussed. Cost and performance data include drilling time, bit duty, steel failure, drill repair, and compressed-air consumption. Steps taken to increase drilling efficiency and decrease costs are described, including modifications of bit design, new procedures for drill-rod fabrication and new processes for completing certain drill-machine repairs
Author: D'Arcy Banister
Publisher:
ISBN:
Category : Drilling and boring
Languages : en
Pages : 28
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Book Description
Drilling practices at the Silver Summit mine in Shoshone County, Idaho, and the steps taken to increase drilling efficiency are described for the 1952 to 1958 operating period. Mining and development methods are outlined, and drilling equipment and practice are discussed. Cost and performance data include drilling time, bit duty, steel failure, drill repair, and compressed-air consumption. Steps taken to increase drilling efficiency and decrease costs are described, including modifications of bit design, new procedures for drill-rod fabrication and new processes for completing certain drill-machine repairs
Author:
Publisher:
ISBN:
Category : Mines and mineral resources
Languages : en
Pages : 548
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Book Description
Author:
Publisher:
ISBN:
Category : Mineral industries
Languages : en
Pages : 1298
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Book Description
Author: United States. Superintendent of Documents
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 792
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Book Description
Author: United States. Superintendent of Documents
Publisher:
ISBN:
Category : United States
Languages : en
Pages : 1284
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Book Description
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1284
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 72
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Book Description
Author: Colorado School of Mines
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 974
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Book Description
Author: United States. Bureau of Mines
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 846
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Book Description
Author: United States. Bureau of Mines
Publisher:
ISBN:
Category : Mineral industries
Languages : en
Pages : 308
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Book Description
