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 215
Fig. 274. Fig. 275. tlio ])itc]i circle to tlic points. This done, a like templet is prepared fort]ni2rmi()7i (fig. 273).f Tlio i)air of tcmplots being tliiis prepared, two tracing points m ?)i arc DRAWING OF MACUINERY. 173 inserted obliquely, and from behind into tlic piece D of the pinion…
