A dictionary of electrical words, terms and phrases (1898)
Houston, Edwin J. (Edwin James), 1847-1914 · New York, The W. J. Johnston company · leaf 288
catorneedle at stop, and thus informs the officerthat his signal has been obeyed. In the same Ind.] 278 [Lid. manner, the opening of the throttle sets the in-dicator needle to ahead, etc. Indicator, Electric Throwback An annunciator with a drop that is electricallyreplaced. (See Annunciator,… … Fig. 2QJ. Edison-Howell La7tip Indicator. The lamp indicator of Edison and Howell isshown in Fig. 297. It consists es-entially of aWheatstone bridge with the resistances arrangedas shown. A galvanometer at G, serves, by themovements of its magnetic needle, to act as anindicator. This needle remains…
Electricity · Electrical engineering
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