A practical course in mechanical drawing for individual study and shop classes, trade and high schools (1912)
Willard, William Franklin, 1879- · Chicago : Popular mechanics company · leaf 47
generatedby the motion of a point on the circumference of acircle which rolls on a straight line is called a cycloid.The figure clearly illustrates the construction. Im-agine the rolling circle to be the end of a cylinder. Exercise 44.—Epicycloid. Fig. 44. An epicycloidaicurve is generated by the… … Fig. 44 the circumference of a circle rolling upon the concaveside of a circle. Should the diameter of the generatingcircle = the radius of the larger circle the hypocy-cloid would become a straight line. These curves are used in constructing the profile ofgear teeth. Fig. 46 is a draftsmans method…
Mechanical drawing
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