Steel ships, their construction and maintenance : a manual for shipbuilders, ship superintendents, students, and marine engineers (1901)
Walton, Thomas · London : Charles Griffin & Co. ; Philadelphia : Lippincott · leaf 352
larea of the tube. The principle of the manipulation of the hand pump is identical withthe foregoing illurstration. First of all, there is a long suction tube fromthe bottom of the vessel up to the pump chamber. The action of thebucket, which is worked by a handle on the deck, is to first pumpthe… … Fig. 172.—Sluice Valve. pumps to get an absolute vacuum, it is safer never to count upon the waterrising above 24 ft. As hand pumps are usually worked from the upperdeck, the suction chamber should be deep enough to ensure that the bucketis not more than 24 ft. above the bottom of the hold. A rose,…
Naval architecture · Ships, Iron and steel
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