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 246
ime become loose there-in by reason of the wear; and it is there-fore necessary, after the work is in positionbetween the centres, to lock the back centre firmly in place, for which purpose the device shown inFig. 2578 is provided. The front of the poppet-head or tail-stock is furnished with a…
Mechanical engineering -- Dictionaries
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