Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Routine ventilation surveying in South Wales anthracite mines
Company employs about 11,500 men, 9000 of whom work underground; mines are deep; many have long, irregular passages; prime objects of ventilation surveying are to indicate need and means of better coursing of air through mine passages and to improve conditions as related to atmosphere in which men work; staff works full time under committee of company executives.
Routine ventilation surveying in South Wales anthracite mines
Company employs about 11,500 men, 9000 of whom work underground; mines are deep; many have long, irregular passages; prime objects of ventilation surveying are to indicate need and means of better coursing of air through mine passages and to improve conditions as related to atmosphere in which men work; staff works full time under committee of company executives.
Routine ventilation surveying in South Wales anthracite mines
U S Bur Mines -- Information Cir
Smith, C.M. (Autor:in)
1949
11 pages
Supp plates
Report
Englisch
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