John Jacob Holtzapffel · digital reprint by www.CircuitousRoot.com · leaf 122
hing screw to allow the roller to recede upon the toolslide. The successive modifications in the construction ot the cur- vilinear apparatus present no points of particular interest hut in all, the facility of replacement and withdrawal to leave the slide- rest in its normal condition has been a… … held in surface contact with a steel bar running the whole length of the mainslide, and a numerous series of holes tapped in the bar for their attachment by two binding screws, affords a first adjustment for any portion of the curve to be brought opposite to any part of the work, and this is…
Ornamental turning
Internet Archive · Dr. David M. MacMillan · Public Domain Mark 1.0. Free to use for anything.
