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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 97

An illustration from 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, leaf 97
for fastening the head. 51 GEERING. G, dial or index, having rows of holes of different numbers drilled on its face, which can be dividedby means of the point and spring I, so as to cut any number of teeth wanted. K is a hand lever for raising spindle F and dial with the geer while cutting. This… … L is a balance lever weight to counterbalance the spindle and dial, and the weight of the geerwhich is being cut. The weight has a movable cover for the purpose of putting in more or less weight,as the heft of the geer being cut may require. To the extreme left of the upper part of the frame, Fig.…

Gearing · Mills and mill-work · Odontograph

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