The inventions, researches and writings of Nikola Tesla : with special reference to his work in polyphase currents and high potential lighting
A 1894 technical compilation by Thomas C. Martin of Nikola Tesla's inventions, researches and writings on polyphase currents and high-potential lighting, published by The Electrical Engineer. Its pictures are line diagrams of electrical apparatus: a lamp bulb cross-section, a radial winding ring, a machine housing section and a wiring schematic. A designer could draw on their clean technical linework, dense hatching and concentric circular geometry.
