The standard electrical dictionary; a popular dictionary of words, terms, and phrases, used in the practice of electrical engineering (1897)
Sloane, T. O'Conor (Thomas O'Conor), 1851-1940 · New York, H. W. Henley & co. · leaf 633
ntly includes cleaning the feed rodof the upper carbon with a cloth so as to ensure smooth action ofthe clutch. In lamps using upper and lower carbons of the same size andkind, an economy is effected by placing the short upper carbonstub in the lower holder to be further consumed, and placing a… … Tube, Crookes, Adjustable Vacuum. A Crookes tube in which the degree of vacuummay be regulated by heating a suitable chemicalenclosed in an auxiliary bulb, connected by atube to the main bulb. The small bulb isarranged over a small gas or oil burner and thevaporization of the chemical regulated by…
Electricity
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