Equipment at mine in Allegheny County, Pa; 615 mine cars of 3 1/2-ton capacity replaced by 300 specially designed 8-ton all steel cars; five 15-ton trolley and eight 8-ton cable-reel-and-trolley locomotives furnish total motive power for 4000-ton daily output.
Improved transportation at Springdale
Mechanization
Mechanization ; 12 , n 2
1948
Article (Journal)
English
© Metadata Copyright Elsevier B. V. All rights reserved.
Engineering Index Backfile | 1947
|