Jamison, Alpha Pierce. [from old catalog] · New York, J. Wiley & sons; · leaf 146
cycloid, and (4)the involute. The Cycloid.—Fig. 57. If a circle be rolled along a straight line, every point in its circumference will describe a curve known as the cycloid. For example, assume a buggy-wheel rolling 126 GEARING. 127 along a level road, the travel of any particular point on the… … Fig. 57. being a good working number, though the greater the numberthe more nearly accurate the work becomes—as O-D, D-E, etc.Next lay off the lengths O-N, N-M, etc., equal to the lengthof the arc O-D and erect the perpendiculars O-C, Nf-Clf etc.[It will be noted that the circle is divided into an…
Mechanical drawing
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