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 295
-pit, and here they are hung on aframe called a rocker, which is slowly moved by machinery, the oscillation being over about 6 inches,thus causing as little agitation to the liquor as is consistent with a gentle movement of the fibre ofthe green stock. Fig. 2759 represents an improved form of… … LEATHER-WORKING MACHINERY. 283 373S.
Mechanical engineering -- Dictionaries
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