Jamison, Alpha Pierce. [from old catalog] · New York, J. Wiley & sons; · leaf 159
2. INVOLUTE SYSTEM. (By Grants Involute Odontography 140 MECHANICAL DRAWING. finite radius and its describing-circle a straight line E-E. Byrolling the describing-circle of the pinion on the inside of the … Fig. 64. pitch-circle, the hypocycloid P-M, forming the flanks of the pinion teeth, is obtained; by rolling the same circle along the GEARING. 141 pitch-line, the cycloid P-N, forming the faces of the rack teeth isobtained; by rolling the line E-E around the pitch-circle the in-volute, P-Oj forming…
Mechanical drawing
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