A practical course in mechanical drawing for individual study and shop classes, trade and high schools (1912)
Willard, William Franklin, 1879- · Chicago : Popular mechanics company · leaf 141
lopment anywhere convenient and the points pro-jected to corresponding places. SECTIONS OF WORKING DRAWING The value of being able to make sections in a draw-ing where possible constructive difficulties may ariselater, is a part of the draftsmans business. Sectionsare very helpful in showing… … Fig. 140 shown by drawing the hatch Hnes at different angles.To determine the location of sections, pass planesthrough the geometric centers of the object, both ver-tical and horizontal. On pages 92 and 93 and else-where of chapter VIII, sections were made of geomet-ric solids and their…
Mechanical drawing
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