A textbook on mechanical and electrical engineering (1902)
International Correspondence Schools · Scranton : International Textbook Co. · leaf 467
sman must imag-FiG. 37 ine the surface desired in the final form. The principle by which these solids areclassified is illustrated in Fig. 37 by the perspective of thesphere and its resolved cones. After the sphere has thusbeen resolved into cones—or rather, frustums of cones—their developments may… … 16 DEVELOPMENT OF SURFACES 05 Another method of treatment is shown in Fig. 38, certainsections of the sphere being here considered as portions of the surface of the cylinder. Thismethod is referred to as the develop-ment by gores; the patterns aredeveloped, as with any portion ofthe cylinder, by…
