Essentials of drafting; a text and problem book for apprentice, trade and evening technical schools (1918)
Svensen, Carl L. (Carl Lars), 1884- · New York, D. Van Nostrand company · leaf 156
itions of shading areillustrated in the figures given in this chapter, which shouldbe carefully studied. SHADE LINE DRAWINGS 139 Surface Shading. — Various methods of hne shading on surfacesare used to show the shape of machine parts. Personal judgmentis an important element in the matter of… … I Fig. 336 Another method is to space the shade lines about equally but tovary the width of the lines as in Fig. 323. The air chambers(Figs. 324 to 328) show a number of different ways of shadingconical, spherical, and cylindrical surfaces. As shown, either finelines near together or varying lines…
Mechanical drawing
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