A dictionary of electrical words, terms and phrases (1896)
Houston, Edwin J. (Edwin James), 1847-1914 · New York, The W.J. Johnston company · leaf 67
t of the handle in the direction of thearrow drives a wheel that makes and breaks acircuit at certain intervals. The fire-alarm signal boxes are connected Box.] 55 [Box. either with a central station, cr with the enginehouses of the district in which the alarm issounded, or with both.Box,… … Fig. bo, Fire-Alarm Telegraph Box.that is moved by pulling down a lever. Therelease of the lever repeats the signal to the firedepartment at the central station a certain numberof times. The box also contains a relay bell,lightning arrester and signal-bell key. Box, Fishing A term sometimes used…
Electricity · Electrical engineering
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