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 346
s type is apparent from the illustration. In the design shown in fig. 4,297, a slidingpartition or abutment, A, is used to imprison the water. As the piston or insidecylinder turned around, the abutment was pushed up and fell of its own gravity. A stripof metal supported this abutment and furnished… … Fig. 4,298.—Transparent view of Taber rotary pump showing all parts. It consists of acircular barrel containing four vanes or valves projecting through slots of a cylindereccentric to the circular barrel, and arranged to move in or out to maintain contact withthe interior surface of the circular…
Electrical engineering
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