Mechanical drawing for industrial and high schools (1915)
Leeds, Charles Carley, 1870- · New York, D. Van Nostrand company · leaf 82
and hardened. Two ofthese centers are used on each lathe, one being fitted into the tail-stock spindle, the other in the nose of the headstock spindle, theformer being known as the dead center, the latter as the livecenter. The stem of the center is turned to a taper of approximately finch per… … rt\ \ *3i;o I J iP
Mechanical drawing
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.