Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 325
ies ofcurves parallel to these. In practice, a portion must be cut from the points ofthe teeth, and also a space must be cut out within the pitch-circle of the driver,to allow the staves to pass; but no particular form is requisite; the condition tobe attended to is simply to allow of sufficient… … Fig. 682. A 0, formed by the generating circle rolling on the interior of the pitch-circle,and the flanks the epicycloid A B, formed by the generating circle rolling on theexterior of the pitch-circle. INVOLUTE TEETH. Fig. 683 is a pair of spur wheels showing the mode of drawing involute teeth.The…
Mechanical drawing
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