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 166
in the cover and fasten them. Put plates and coverin position. If a strong current is wanted at once, short-circuit for ten or fifteen minutes. 3. Maintenance.—If necessary, move the cell withoutshaking. Glass jars are liable to crack. The top layer of oil is very essential and the level of the…
Electric machinery · Searchlights · Coast defenses
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
