Babbit, Arthur B · New York, H. Holt and company · leaf 132
1 1 1 1 11 ^9- ^^3 … y//// m 1 1 ^v? 1 i rrn m. W/A / ^9. ^^ r- best to draw these dotted lines, in order to show thecorner on the front view. The obhque hnes drawn across portions of thesectional views are called section lines. These aredrawn only where the material of the model is cutby the cutting plane. In Figs. 44…
Mechanical drawing
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