A short treatise on the designing and construction of gearing and mill-work. Accompanied by an explanation of the construction and use of the odontograph of Prof. Willis .. (1873)
[Scott, David] engineer. [from old catalog] · New York, D. Appleton and company · leaf 53
12 19 l8 _ IK I5 _ H I2 44 GEERING. When the numbers have been selected, the Odontagraph may be employed to draw the figure of th«cutter 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,…
Gearing · Mills and mill-work · Odontograph
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