Fry, Horace Pugh. [from old catalog] · Philadelphia · leaf 39
1. The intersections of curved surfacesshould be drawn as an aid to the understanding of a drawing.The Hne of intersection of two pieces must be carefully plottedwhen it is required that one or both pieces be cut to fit togetherat the line of intersection. (See Developments.) 2. Descriptive… … « Fig. 27. 3. To determine a point on the line of intersection of twosurfaces, pass a plane through both in a way that its trace oneach surface will be an element or other known line, these elementswill intersect at a point on the line of intersection of the surfaces. 4. A sufficient number of…
Mechanical drawing
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