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 91
Fig. /77 … arms, etc., which are very seldom drawn in section except whenthe cutting plane is at right angles to the long dimension. Thistreatment of a section is shown in Fig. 176. SECTIONS 75 Dotted Lines on Sectional Views. — Very often a sectionalview contains only the outline of the sectioned surfaces…
Mechanical drawing
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