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 87
I^Ij3 84. Ite Automatic Cut-out or Circuit Breaker. … Diagram No. 1. Diugram No. 2. 85. the knife of the switch is closed by the handle, the armatTire is automaticallymoved into approximate contact with the pole pieces and held by their maguet-isni. If tlie v()ltag(> falls to tlie adjustment, the armature lever is released andstrikes the trigger…
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-80-30.webp)
