Describes scaper unloader system which conserves twothirds of space usually wasted in hopper-bottomed ships; system consists primarily of one or more tunnels built into bottom hold.
Leathem smith effects many economies with self-unloading freight ships
Pit Quarry
Pit and Quarry ; 12 , n 10
1926
6 pages
12 Figs.
Article (Journal)
English
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