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 110
ELECTRIC MOTORS. 81 (n) Diagram of General Electric S. and S. rheostat (fig. 104) with automaticrelease (underload C. B.) in armature circuit of small series motor. Box isshown for small shunt motor. J^ £D. Release rT^agnefc
Electric machinery · Searchlights · Coast defenses
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.