Machine drawing; a text and problem book for technical students and draftsmen (1921)
Svensen, Carl L. (Carl Lars), 1884- · New York, D. Van Nostrand company · leaf 81
ece is symmetrical, the dimension is given about or across the centerline, as at I, Fig. 131. Methods shown at II and III are sometimes used. Place dimensions so that other dimensions or lines do not cross them orcrowd them. Where a number of dimension lines are parallel do notplace the figures… … . r?r i y/y /J b ^ V/. ^ is? ////// y///A V//// ^) i: A Tim Fig. 131. Dimensioning About and Across Center Lines. PRINCIPLES AND PRACTICE OF DIMENSIONING 71 When most of the dimensions are in inches, they may all be given ininches and the mark {) omitted. When feet and inches are used, always…
Machinery
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