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 211
lei. These disk-rolls are caused to revolve in the same direction by means of the gearing, and con-sequently the surfaces of the rolls opposite each other will move in opposite directions, while themovement imparted to a cylindrical bar or tube (in the line of its axis) passing between the…
Mechanical engineering -- Dictionaries
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