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Author : George Samuel Rice
Publisher :
Page : 8 pages
File Size : 20,13 MB
Release : 1927
Category : Coal mines and mining
ISBN :
Author : George Samuel Rice
Publisher :
Page : 6 pages
File Size : 18,90 MB
Release : 1927
Category : Coal mines and mining
ISBN :
Author : George Samuel Rice
Publisher :
Page : 14 pages
File Size : 14,82 MB
Release : 1930
Category : Coal mines and mining
ISBN :
Author : John Joseph Vincent Forbes
Publisher :
Page : 16 pages
File Size : 39,16 MB
Release : 1947
Category : Coal mines and mining
ISBN :
Widespread explosions in coal mines can be prevented if rock dust of suitable size and composition is applied effectively within two or three cuts of face; distance between end of rock dusting and face should never exceed 80 feet. Water should be used on cutter bar of mining machines, and coal piles and should not only be wetted after blasting but kept wet during landing.
Author : Harold Putnam Greenwald
Publisher :
Page : 30 pages
File Size : 15,9 MB
Release : 1940
Category : Coal mines and mining
ISBN :
Author : J. J. Forbes
Publisher :
Page : 26 pages
File Size : 33,43 MB
Release : 1939
Category : Coal mines and mining
ISBN :
Author : S. H. Ash
Publisher :
Page : 16 pages
File Size : 12,58 MB
Release : 1930
Category : Mineral dust
ISBN :
Author : George Samuel Rice
Publisher :
Page : 6 pages
File Size : 25,14 MB
Release : 1924
Category : Coal dust
ISBN :
Author : Clarence Watson Owings
Publisher :
Page : 1130 pages
File Size : 44,74 MB
Release : 1940
Category : Coal mines and mining
ISBN :
Author : Irving Hartmann
Publisher :
Page : 22 pages
File Size : 13,90 MB
Release : 1956
Category : Mineral dusts
ISBN :