Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 361
Fig. 767. A … Fig. 768. Fig. 769. Fig. 770. intersection severally of these circles with the radii C 1, 0 2, 0 3, will givepoints of the eccentric curve required. Fig. 768.—To construct a double and symmetrical eccentric, lohich shall pro- MACHINE DESIGN AND MECHANICAL CONSTRUCTIONS. 345
Mechanical drawing
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
![An illustration from Nicolai Copernici Torinensis De reuolutionibus orbium coelestium, libri VI : Habes in hoc opere iam recens nato, & aedito, studiose lector, motus stellarum, tam fixarum, quàm erraticarum, cum ex ueteribus, tum etiam ex recentibus obseruationibus restitutos: & nouis insuper ac admirabilibus hypothesibus ornatos. Habes etiam tabulas expeditissimas, ex quibus eosdem ad quoduis tempus quàm facillime caculare poteris. Igitur eme, lege, fruere. [Line in Greek] (1543)](https://img.insideoutlibrary.com/img/200/ia-nicolaicopernici00cope-149-83.webp)
