A short treatise on the designing and construction of gearing and mill-work. Accompanied by an explanation of the construction and use of the odontograph of Prof. Willis .. (1873)
[Scott, David] engineer. [from old catalog] · New York, D. Appleton and company · leaf 30
a wheel of 88 teeth of the particular pitch marked against it on the line A B. They alsoexpress the radii of wheels having less than 88 teeth when measured only to the corresponding pointin the line joining B, and the divisional on C D, against which the number of teeth is marked. Thusthe radius of… … UZ 21 all Jfl 18 U 16 15 14 . 13 12 IL 10 u i:< 12 li. 10 ft The scale may also be used when the number of teeth exceeds 88 ; for example, to find the radius ofa wheel having 100 teeth. Thus having found the radius answering to 88 teeth, upon the same paralleltake off the measure answering to…
Gearing · Mills and mill-work · Odontograph
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