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 240
L!i:i£ai^ 9iia®^ r PLATE X X I y . 183 Fi- 1 … DRAWING OF MACIIINEEY. 183 ference of the circle A E C, in rolling on the line M X. The curvatureof the teeth of the pinion is an involute as before. SYSTEM COMPOSED OF A ^^^IEEL AXD TANGENT, OE ENDLESS SCREW. Fig. 2.—In the construction of this varietj of geering, we must first fixupon the number…
