Reserves of 280 million tons justify sinking of new shaft 24 ft in diam to depth of 1100 yd; annual saleable output is estimated at 1, 250,000 tons; coal preparation; power supply; reconstruction of shafts; surface layout; shafts and shaft equipment; layout of fans and fan drift; ventilation; pitbottom layout, 1450 ft level and 2950 ft level; main road layout and transport; drift disposal.
Hem heath reconstruction
Colliery Guardian
Colliery Guardian ; 185 , n 4774
1952
7 pages
Diagrams
Article (Journal)
English
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