Lessons in practical electricity; principles, experiments, and arithmetical problems; over four hundred illustrations; an elementary text book (1909)
Swoope, C. Walton (Coates Walton), d. 1901 · New York, D. Van Nostrand company · leaf 438
tomatic feeding lamp thecarbons are moved together automatically as they are conburned, so that the length of the gap is maintained constantand consequently the distribution of light is continuous. A simple means for producing automatic feeding is depictedin Fig. 381 and embodies the principle… … Fig. 381.—Diagram of Connections of an Automatic Feed Differential ArcLamp.—Clutch Type Pattern. supply line by the lamp terminal binding posts 3 and 4. Theupper or positive rod, E, passes through a clutch, H, supported] by the horizontal brass lever, DH, pivoted at C, and alsoj fastened to an iron…
Electricity · Magnetism
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