Appleton's cyclopædia of drawing, designed as a textbook for the mechanic, architect, engineer, and surveyor (1866)
Worthen, William Ezra, 1819-1897, [from old catalog] ed, Appleton, firm, publishers, New York. (1866. D. Appleton & co.) [from old catalog] · New York, D. Appleton and company · leaf 202
FiV. 264. Fis. 2G5. any j^oints D and E in the lines A B, A C, and perpendicular to them,draw D d and E ^ of lengths (from a scale of equal parts) inversely as thenumber of revolutions which the axes are severally required to make inthe same unit of time. Thus, the angular velocity of axis B being…
