Hawkins electrical guide ... : questions, answers & illustrations : a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications ; a practical treatise (1914)
Hawkins, N. (Nehemiah), 1833-1928 · New York : T. Audel & Co. · leaf 350
et without internal shock or commotion. The very limited head at which it was possible to operate the earlierpumps with economy has been overcome by connecting two or moreunits upon one shaft and operating them in series, that is, passing thewater through each unit in succession, thus the head is… … Fig. 4,308.—Sectional view of a typical single suction standard volute pump designed for directconnection to moderate speed motors or for belt or gear drive. A single suction openingis provided on the side furthest from the driving power, thus affording the facility forconnecting the suction pipe.…
Electrical engineering
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