Appleton's dictionary of machines, mechanics, engine-work, and engineering : illustrated with four thousand engravings on wood ; in two volumes (1873)
D. Appleton and Company · New York : D. Appleton and Co. · leaf 828
aken fromthe points of contact with the base equal to the arcs ca of the base, we can readily determine thepoints of the curve, and consequently the curve itself. The epicycloid may be described by the compasses in the following manner. Let us in the first placetake the exterior curve. Having… … to form the faces of a tooth equal to the divisions of the circumference ABD. Then, as the circle ABD rolls upon the circle A aA y, the points 1, 2, 3, will coincide successively with the points 1, 2, 3; and, drawing radii from thepoint 0 through the points 1, 2, 3, and also describing arcs of…
Mechanical engineering · Mechanics · Engineering
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