A NEW BRITISH UNDER-WATER PUMP.
In salvage operations, in well-mak-ing, and in many kind of dock and harbour engineering great advantage is gained by using a pump which can work under water. Several types of submersible electric pump have been designed by British enginers, and the latest type has some special features of interest. The usual practice is to allow the water free access to the stationary part of the motor, thick rubber being used to insulate the electric circuits. In the new invention this part of the motor is cased in a special steel alloy, the casing being very compact and of high efficiency. By using suitable materials for the casing and pump parts, and a special incorrodible steel alloy in the rotating part of the motor, the pump can be adapted for handling weak acids and other corrosive liquids.
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Pukekohe & Waiuku Times, Volume 9, Issue 591, 10 December 1920, Page 2 (Supplement)
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141A NEW BRITISH UNDER-WATER PUMP. Pukekohe & Waiuku Times, Volume 9, Issue 591, 10 December 1920, Page 2 (Supplement)
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