French, Arthur Willard, 1868-, Ives, Howard Chapin, 1878-1944. joint author · New York, J. Wiley & Sons. Inc.; London, Chapman & Hall, Limited · leaf 105
Fig. 44, ABC is the elevation, and ACDEis the plan of a semicylinder with radius OA, arid length AB.Divide ABC and AE into the same number of equal parts—eight in this case—and through the points of division 1 , 2, 3,4, etc., of AE draw lines parallel to AC, the face of the cylinder,to meet lines… … Fig. 44. Now, if we consider the semicylinder as the soffit of a rightarch, the developinent of it will be ABGF, in which AE perpen-dicular to AE is equal to the curve of right section ABC. ThenAG will be the development of the semihelix A4D, and is astraight line. From this development we can find…
Stereotomy
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
