Submarine warfare, past, present and future (1902)
Fyfe, Herbert C, Reed, Edward J. (Edward James), Sir, 1830-1906 · London : Grant Richards · leaf 214
ge orstopping the valve from shutting. The brass valve mightlikewise be forced into its place with a screw if necessary.The air-pipes had a kind of hollow sphere fixed round the topof each to secure the air-pipe valves from injury; these hollowspheres were perforated full of holes for the passage…
Submarine warfare · Submarines (Ships)
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