A textbook on mechanical and electrical engineering (1902)
International Correspondence Schools · Scranton : International Textbook Co. · leaf 359
Fig. 43 Fig. « the foreshortened view of the sectional surface thus shownin the plan is a true ellipse, as is also the full view of thesection next to be drawn. Project a side elevation to theright (see Art. 61), also showing a foreshortened view ofthe section—an ellipse of a different curvature.…
