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 123
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 in Fig.… … Fig. 15. Other Examples of Symmetrical Cross-sectioning cases, where the distance between the holes is made equal tothe diameter of the circle of drilling regardless of projection.At A is shown the true projection, which is misleading. At Bthe holes are shown dotted, the centers of the holes being…
Mechanical drawing
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