John Jacob Holtzapffel · digital reprint by www.CircuitousRoot.com · leaf 208
divisions, sub- divided to read to the 200th of an inch, in other words its movements are of the same values as those of the mainscrews of the sliderest and of the eccentric and other chucks. Moving this screw round through one or more divisions of the micro- meter, therefore, traverses the tool to… … center of the lathe, or that which similar movements of the screws of the ornamenting chucks traverse the work they cany. It may be noticed in passing that the spindle of fig. 193, in lieu of carrying the slide forged with it in one solid, has not infrequently been constructed to carry…
Ornamental turning
Internet Archive · Dr. David M. MacMillan · Public Domain Mark 1.0. Free to use for anything.
![An illustration from Original microscopic drawings made between the years 1824 and 1840 mostly published in works by Dr. Goring & A. Pritchard [graphic]. (1824)](https://img.insideoutlibrary.com/img/200/wellcome-wellcome_b21301177-83-1.webp)
