Mechanical drawing. Elementary and advanced (1910)
Reid, John S. (John Simpson), 1856- · New York, J. Wiley & sons; [etc, etc.] · leaf 134
circle- draw KOP; then KP is equal to themajor and MK to the minor axis, and angle 6 is twice theangle of the transverse axis with the horizontal conjugatediam.; i.e., KP is equal to 1, 2, MK to 3, 4, and 2, OxC,or angle Qy is equal to half KOC v> ORTHOGRAPHIC PROJECTION. II9 PROB. 34.—Find the… … G-A Fig. 163. The line of shade on the column is found by passing twoplanes of rays tangent to the column perpendicular to H.P.and parallel to the hor. proj. of the ray of light. KL andEH are the traces of these planes tangent to the column atthe points L, and EH and MN the visible line of…
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