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 125
e or overload. 10. The motor may be slowed down or even stopped by moving W to the left,provided R h is large enough to carry the current. 11. The electro-magnetic brake on the gear wheel next the motor armatureautomatically clamps it whenever the main current ceases and the motor stops.It gives a… … IX.—SEARCH=LIQHT PROJECTORS. THE 60-INCH DIAMETER SCHUKERT SEARCH LIGHTAT FORT MOIS^ROE (Fig. 120). With 150 amperes, at about 60 volts, it has 194,000,000-candlepo\ver. On aclear, dark night a jierson within its beam, 12 miles distant, can read ordinaryprint; it lights up an object 2i miles…
Electric machinery · Searchlights · Coast defenses
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
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