Van Nostrand's eclectic engineering magazine (1869)
[New York : D. Van Nostrand] · leaf 14
usually the most acceptable. Also the odontograph must be simple, and easy of application. wheel of eighty teeth. This limitation PECULIARITIES OF THE WILLIS ODONTO- causes the teeth of small wheels to be GRAPH TOOTH. narrow at the base, and of large wheels A tooth of a wheel of eighty teeth, as to… … MODIFIED FORM OF ODONTOGRAPH. little to one side in dotted lines, the These undesirable features are, how- same tooth of epicycloidal form with ever, in the main, no fault of the gener- radial flanks, as calculated to work with al theory of Prof. Willis for the forma- a second wheel of twelve…
Engineering
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