John Jacob Holtzapffel · digital reprint by www.CircuitousRoot.com · leaf 121
s. The projecting portions of these horizontal bars were divided to receive flat metal templates or shaper plates fixed by pins passing through any in a series of holes, so as to provide for some variation in the position of the template. An additional toolslide of greater length was employed, and… … this roller could slide backwards and forwards in a slot made in the toolslide, in which it was retained by a corresponding- sliding piece and screw above, in the manner shown by fig. 65. The roller being retained in contact by the lever, the tool then followed the sinuosities of the curve as it…
Ornamental turning
Internet Archive · Dr. David M. MacMillan · Public Domain Mark 1.0. Free to use for anything.
