John Jacob Holtzapffel · digital reprint by www.CircuitousRoot.com · leaf 658
iameter As.regard the manipulation, the material first prepared cylindrical was ie- duced to a neck behind a length rather more than sufficient foi the diameter of the proposed sphere, and then this length had its an-des removed and was otherwise roughly shaped by W Wng as described fig. 431, Vol.… … the tool around it. If the shaft of the tool be supposed to stand radially to the axis of the circular movement, as it h-nviltd around the work from a to b fig. 593, it would arrive in contact with and be arrested by the remaining portion of the cylinder or by the neck some time before it could…
Ornamental turning
Internet Archive · Dr. David M. MacMillan · Public Domain Mark 1.0. Free to use for anything.
