The standard electrical dictionary : a popular encyclopaedia of words and terms used in the practice of electrical engineering (1898)
Sloane, T. O'Conor (Thomas O'Conor), 1851-1940 · London : Crosby Lockwood and Son · leaf 147
objects. ,^ 142 STANDARD BlyBCTRICAIy DICTIONARY. Compass Card. The card in a compass; it is circular in shape,and its centre coincides with the axis of rotation of the magneticneedle; on it are marked the points of the compass, at the endsgenerally of star points. (See Compass^ Points of the.) It… … =^^i- ^; si-WKiv-X-t Fig. 108. Declination Compass. ihe mag-It is vir-tually a transit instrument andcompass combined, the teles-cope surmounting the latter. Inthe instrument shown in thecut, Z, is a telescope mounted byits axis, X, in raised journalswith vernier, K, and arc x, forreading its…
Electricity
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