Appleton's dictionary of machines, mechanics, engine-work, and engineering : illustrated with four thousand engravings on wood ; in two volumes (1873)
D. Appleton and Company · New York : D. Appleton and Co. · leaf 801
■■—4°j nr … In a machine constructed and operating on the principle of this invention, every cut converges to theapex 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.…
Mechanical engineering · Mechanics · Engineering
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