Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Details of sinking shaft 18 ft. diam., 441 yd. deep; concrete lining, reinforced at shaft collar; electric mine hoist, designed to raise 7 tons of coal from depth of 450 yd. in 56 sec.
Details of sinking shaft 18 ft. diam., 441 yd. deep; concrete lining, reinforced at shaft collar; electric mine hoist, designed to raise 7 tons of coal from depth of 450 yd. in 56 sec.
Brookhouse sinking
Colliery Guardian
Sinclair, J. (Autor:in)
Colliery Guardian ; 142
1931
4 pages
7 Figs.
Aufsatz (Zeitschrift)
Englisch
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