Sullivan, Christine [Gordon]. [from old catalog] · New York, Cincinnati [etc.] American book company · leaf 67
to another,wheels furnished with teeth are employed. There are various kinds of wheels, — spur wheels, cog wheels, face 62 ELEMENTS OF MECHANICAL DRAWING, wheels, crown wheels, annular wheels, bevel wheels, miter wheels,and skew bevels. The curves described, or used for the form of the teeth,… … Fig. 101. 2. The epicycloid is traced by any point in a circle rolling on anothercircumference or arc. 3. The hypocycloid is traced by any point in a circle rolling onthe inner side of the circumference. Note. — Although these wheels are designed and the patterns for them made onscientific…
Mechanical drawing
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