A textbook on mechanical and electrical engineering (1902)
International Correspondence Schools · Scranton : International Textbook Co. · leaf 359
he cone into any convenient number of equal parts (in thiscase 16). Draw lines from these points {b, 1, 2, 3, etc.) tothe center; next, project these lines—or elements, as theyare called—to the elevation. Project the intersections ofthe elements in the elevation with the cutting plane ;;/;/to the…
