Handbook for machine designers, shop men and draftsmen (1916)
Halsey, Frederick A. (Frederick Arthur), 1856-1935 · New York, McGraw-Hill book company, inc.; [etc., etc.] · leaf 488
easure every ordinate separately. The best wayto proceed is to mark on the edge of a long piece of paper, in succes-sion, all the even ordinates, then measure the distance between thefirst and the last mark, and multiply the result by 4. Similarlyfor the first and last ordinate, and for the odd… … c•-3 dya •ao o MECHANICS 471 by a strip of paper as described, and divide the sum by lo. Themost accurate method of locating the mean ordinate is to lay a threadhorizontally across the top of each strip, equalizing the triangularareas between thread and curve and thus locating the meanordinate. A.…
Machine design
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