Appleton's dictionary of machines, mechanics, engine-work, and engineering (1861)
Appleton, firm, publishers, New York. (1852, D. Appleton & Co.) · New York : D. Appleton · leaf 852
I 18 17 16 15 14 13 12 GEERING. 841 When the numbers have been selected, the Odontagraph may be employed to draw the figure of thecutter corresponding to each -wheel, either on the same scale, or better, on a larger scale, which may beafterwards reduced proportionally to the size required. To… … of contact, and which are capable of revolving round A and B. It is plain that the line P Q is, in everyposition of contact of these curves, equal to the sum of their radii, and must therefore be constant duringsuch motion; and hence, if for the circular arcs, a pair of rods A P, B Q, connected by…
Mechanical engineering
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