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 126
rt-circuiting the arma-tures of the motors and holding the projector locked in position. An electricallycontrolled projector can also be operated as a hand control projector, by open-ing the circuit switch on top of the controller and releasing the clutches con-nected to the motors in the base of… … 122. Pilot^House Control. 93 HANDBOOK FOR ELECTRICIANS. With electrical control, the highest speed obtainable in the horizontal planeis a movement of 360° in thirty seconds, and in a vertical plane 100° in sixtyseconds. The motors may be operated at four slower speeds and also by steps,the angle of…
Electric machinery · Searchlights · Coast defenses
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer03inte-459-287.webp)
