Johnstown Coal and Coke Co has used surge cars, track-mounted " shuttle" cars, in development of entries in Portage No. 2 mine in combination with track mounted cutting and transportation equipment, crawler mounted loaders and portable drills; 12- and 6-man crews have been used to gain productivity rate as high as 28 tons per shift for each crew member; use of prefabricated track sections recommended.
Track-mounted surge cars speed entry development
Mechanization
Mechanization ; 16 , n 6
1952
3 pages
Aufsatz (Zeitschrift)
Englisch
© Metadata Copyright Elsevier B. V. All rights reserved.
Surge pressures in tank cars cotaining corrosive liquids
Tema Archiv | 1991
|Development of magnetic track brakes for city cars
Engineering Index Backfile | 1939
|