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 155
m with the pointer can be swung over the dial to the combinationrequired, and the knob depressed. The cam actuated by the knob will then XKiHT-SIGNAL SETS AND TRUCK-LIGHT CONTROLLERS. 105 engage with a slot so that the arm can not be moved, and will remain in thisl)osition until the knob lias been… … In9uIat,ion BfocK.Plunjer Contact. i—•■Pulsator Switch. Operating Switch, Contact SpringConductor Rin^. SIGNAL BOX 140. Diagram of Connections of Night-Signal Set. extingiiishes the lamps in the upper lantern when pushed to one side and lightsthem again when released. The lamp socket on the…
Electric machinery · Searchlights · Coast defenses
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
