Mechanical drawing; a treatise on the drawing of mechanical and machine details (1920)
Jones, Franklin Day, 1879-1967 · New York, The Industrial press; [etc., etc.] · leaf 122
subject ofsymmetrical parts, as far as sectioning is concerned, is closelyrelated to the drawing of ribbed parts in section. Figure 13shows a section on X-X at A, in which the lugs are projected. SECTIONAL VIEWS 109 This gives the idea of lack of symmetry. The lug lying onX-X is treated as a rib… … Figs. 13 and 14. Two Kinds of Cross-sectional Views method of representation. Figures 15 and 16 show the treat-ment of circular objects with arms, A being the incorrect andB the correct representation in each case. The alternatemethod shown at C is another correct representation of theobject shown…
Mechanical drawing
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