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 93
w 1981. … In a machine constructed and operating on the principle of this invention, every cut converges to thedpex of a cone that represents the bevel of the wheel, and therefore the cogs, and the spaces betweenthem, will gradually and in the true proportion diminish from the outer to the inner periphery.…
Gearing · Mills and mill-work · Odontograph
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