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 304
18 inches around the circumference. COG-WHEELS. See Geerixg. COINING MACHINE. Figs. 893 to 903, are elevations, sections and details of a machine forstamping money, invented by M. Tbonnelier, and combines economy with perfection of workmanship, du-rability of the machine, and safety to the… … 302 COINING MACHINE.
Mechanical engineering · Mechanics · Engineering
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