A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Shaft sinking practice
Methods used in Coeur d'Alene district of Idaho; Page mine has compartment 50° inclined shaft, sunk 385 ft below 2400-ft level; Galena shaft objective is to sink to 3000 ft for exploration purposes; use of Riddell shaft mucker in Silver Summit shaft; Bunker Hill has developed machine for mucking incline shafts; timbering practice. Before Am Min Congress, Sept 20-23 1948. (See also Min World v 10 n 12 Nov 1948 p 23-6)
Shaft sinking practice
Methods used in Coeur d'Alene district of Idaho; Page mine has compartment 50° inclined shaft, sunk 385 ft below 2400-ft level; Galena shaft objective is to sink to 3000 ft for exploration purposes; use of Riddell shaft mucker in Silver Summit shaft; Bunker Hill has developed machine for mucking incline shafts; timbering practice. Before Am Min Congress, Sept 20-23 1948. (See also Min World v 10 n 12 Nov 1948 p 23-6)
Shaft sinking practice
Min Congress J
Lottridge, R.W. (author) / Neyman, R.W. (author)
1948
2 pages
Article (Journal)
English
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| Engineering Index Backfile | 1948
Shaft-sinking practice in Coeur d'Alene
| Engineering Index Backfile | 1949
| Engineering Index Backfile | 1902
| Tema Archive | 2013