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 262
four equal divisions, marking two diametrically opposite divisions on the chuck and the correspond-ing ones on the spindle, as those to be cut away. This will insure that the threads will be in theright position to have good contact when the chuck is home. Steady-Best for Lathe- Work.—The…
Mechanical engineering -- Dictionaries
Internet Archive · Boston Library Consortium · Public Domain Mark 1.0. Free to use for anything.