Handbook for the use of electricians in the operation and care of electrical machinery and apparatus of the U.S. seacoast defenses (1902)
United States. War Dept, Anderson, George Lucius, 1849-1934 · Washington, Govt. Print. Off. · leaf 149
I … 137. Keyboard for Night^Signal Set. X GENERAL ELECTRIC COMPANYS NIGHT=SIQNAL SETS AND TRUCK=LIQHT CONTROLLERS. (A) NIGHT-SIGKAL SETS. Night-signal sets include four parts, namely: keyboard, cable, lanterns, andladder. 1. Keyboard.—The keyboard consists of a dial and operating handle mountedon a…
Electric machinery · Searchlights · Coast defenses
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
