A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Rated at 3/4-in. advance per min in solid rock, newly developed continuous type slope driver is being used to develop 2800-ft slope on 27% incline at New No. 22 Mine of Jamison Coal and Coke Co; having cloverleaf shaped cross sectional area, contemplated slope will be double decked, accommodating raw coal belt conveyor in top section and track for supplies in bottom.
Rated at 3/4-in. advance per min in solid rock, newly developed continuous type slope driver is being used to develop 2800-ft slope on 27% incline at New No. 22 Mine of Jamison Coal and Coke Co; having cloverleaf shaped cross sectional area, contemplated slope will be double decked, accommodating raw coal belt conveyor in top section and track for supplies in bottom.
New machine drives cloverleaf slope
Mechanization
Jones, D.C. (author)
Mechanization ; 18
1954
4 pages
Article (Journal)
English
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Engineering Index Backfile | 1938
| Engineering Index Backfile | 1940
| Engineering Index Backfile | 1940
Semi-cloverleaf street intersection at Stockholm
| Engineering Index Backfile | 1936