A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Permissible electric cap lamps and ventilation in certain California mines and water-tunnel construction
Replacement of system of lighting in metal mines and tunnel construction; two accidents in 1930, due to inflammable gas, led to many safety measures, including use of electric cap lamp; mining operations at Upper Alameda Creek tunnel of San Francisco water supply; cost data. (see also Colliery Guardian v 145 n 3739 Aug 26 1932 p 405-7)
Permissible electric cap lamps and ventilation in certain California mines and water-tunnel construction
Replacement of system of lighting in metal mines and tunnel construction; two accidents in 1930, due to inflammable gas, led to many safety measures, including use of electric cap lamp; mining operations at Upper Alameda Creek tunnel of San Francisco water supply; cost data. (see also Colliery Guardian v 145 n 3739 Aug 26 1932 p 405-7)
Permissible electric cap lamps and ventilation in certain California mines and water-tunnel construction
U S Bur Mines -- Information Cir
Ash, S.H. (author) / Rankin, J.H. (author)
1932
36 pages
Report
English
© Metadata Copyright Elsevier B. V. All rights reserved.
Investigations of permissible electric mine lamps, 1930-40
| Engineering Index Backfile | 1942
Construction, care, and use of permissible flame safety lamps
| Engineering Index Backfile | 1944
Electric cap lamps in Alabama mines, 1935
| Engineering Index Backfile | 1935
Permissible limits of toxic and noxious gases in mine and tunnel ventilation
| Engineering Index Backfile | 1926