A dictionary of electrical words, terms and phrases (1898)
Houston, Edwin J. (Edwin James), 1847-1914 · New York, The W. J. Johnston company · leaf 543
rigonometrical.—Of or pertaining totrigonometry. (See Trigonometry?) Trigonometrical Function.—(See Func-tion, Trigonometrical?) Trigonometrically.—In a trigonometricalmanner. Trigonometry.—That branch of mathe-matical science which treats of the methodsof determining the values of the angles… … F*g- 559 Dynamo Brush Trimmer. trigonometry, by what is called the solution ofthe triangle. [See Function, Trigonometrical.) Trimmer.—An employee of an electriclight company who renews the carbons inarc lamps. Trimmer, Dynamo Brush A de-vice for insuring rapid and accurate trimmingof dynamo…
Electricity · Electrical engineering
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