The inventions : researches and writing of Nikola Tesla, with special reference to his work in polyphase currents and high potential lighting (1894)
Martin, Thomas Commerford, 1856-1924, Tesla, Nikola, 1856-1943 · New York : The Electrical Engineer · leaf 509
490 INVENTIONS OF NIKOLA TESLA. The eiigravint;, Fi<;. ;U2, shows, in perspective, one of thefomis of a]>paratiis used by Mr, Tesla in his earlier investigationsin tliis tieki of work, and its interior construction is made plainby the sectional view shown in Fig. 318. It will be noted that… … Ik.. for the outlet of the working fluid and one, i, for the inlet.The piston p is provided with two slots s s at a carefully deter-mined distance, one from tlic other. The tubes t t which arescrewed into the holes drilled into the piston, establish communi-cation between the slots s s and chambers…
Electric currents, Alternating · Electrical engineering
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