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 48
ciple being established, it may be adapted conveniently to practice by constructing a bevelof brass, of the requisite form, the angle at T being 75^ degrees: the side T 3 may for convenience bograduated into a scale of quarters of inches as in the Figure; and these divisions may be further… … 40 GEERING. the radius of the wheel in inches upon the reduced scale. Thus in the figure the radius A T is threeinches long, and the point 3 is found at 3 of the scale. To draw the curves of the other teeth, describe from centre A with radius A 3 the circle p q, dottedin Fig. 2055, and falling…
Gearing · Mills and mill-work · Odontograph
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