Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 148
f these two solids the curvesformed by their junction will be projected horizontally in the curves 0 H P,R T S, and vertically in L P I N. But, if the position of these bodies be changed into that represented by Fig.268, the lines of their intersection will assume in the vertical projection… … Fig. 267. plane would cut the vertical cylinder in lines drawn perpendicularly throughthe points c d. To find the vertical projection of its intersection with theother cylinder, conceive its base Y L, after being transferred to P 17, to berevolved about P L as an axis parallel to the horizontal…
Mechanical drawing
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