Leeds, Charles Carley, 1870- · New York, D. Van Nostrand company · leaf 84
se 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 | inch per foot, orwhat is known as the Morse taper. The small steel oiler is used to drop oil on the centers. When making a pencil drawing and tracing…
Mechanical drawing
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
