Handbook for the use of electricians in the operation and care of electrical machinery and apparatus of the U. S. seacoast defenses .. (1904)
United States. War Dept · Washington, Govt. print. off. · leaf 120
115. Thompsons Recording Watt Meter. SUPPLY MAIN 116. One of the Special Motors. starting a main motor without taking excessive starting current from themains is shown by Teazer Armature in fig. 116. The left coinmutator belongs to the motor winding on the armature; theright commutator, to the…
Electric machinery · Searchlights · Coast defenses
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.