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 44
Fig. 39 MECHANICAL DRAWING 41 changing the position of the trammel frequently, suf-ficient points can be located at G, on the trammel, todetermine a symmetric ellipse. Make GC = DH andGE = AH. Exercise ^o.—Make a full-size drawing of the ellip-tic cam. Fig. 40. … Exercise 41.—A point on a connecting rod of a sta-tionary engine describes an elliptic curve in one revo-lution of the crank wheel. With B as the given pointlay out the desired curve. The construction for themechanism m.ay be omitted. Fig. 41. Exercise 42,—Five-point elliptic arch with threeradii.…
Mechanical drawing
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