A dictionary of electrical words, terms and phrases (1898)
Houston, Edwin J. (Edwin James), 1847-1914 · New York, The W. J. Johnston company · leaf 264
Suppose the screw has fifty threads tothe inch, the pitch of the screw, or the distancebetween two contiguous threads, is therefore -^or .02 of an inch. One complete turn of the screw will, therefore,advance the slfceve D, over the scale a, the .02 ofan inch. If the screw is only moved throughone… … Fig. 283. Vernier Wire Gauge.space between them, and the reading shows twoof the larger divisions on the scale a, three of thesmaller ones and three on the end of the sleeveD, then Two large divisions of scale a = .2 inch Three smaller divisions of scale a.. = .06 Three divisions on circular scale…
Electricity · Electrical engineering
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