Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts (1880)
D. Appleton and Company, Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 314
ning by meansof a knob upon an index-plate, is placed upon the outside of the safe. A shaft passes through thedoor and through the axis of a wheel to which it is fixed, and also through the axes of the wheels a,bed which however, are free to turn. If now the fixed wheel has a pin upon its inner… … 2S33.
Mechanical engineering -- Dictionaries
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