Online Catalogue last updated 15th of September 2008
"A treatise on the machines and methods employed for graduating straight and circular scales and engraving various forms of nameplates, by etching and cutting processes."
Here, the 1921 secrets of engraving are revealed.
Chapters include graduating machines and their use, engraving machines and methods and etching and etching fluids. Within these chapters you'll see power-driven linear engraving machines, circular engines, a circular graduating machine used to put scales on astronomical instruments, machines that graduate numerous rules simultaneously, graduating with a pantograph and even a fixture for graduating in a milling machine.
You'll see machines (cross-section drawings included) that engrave with a tiny precision router mounted on a pantograph. And see the products of their work: dies for date stamps, radio dials, and more.
This is a small, informative booklet that is loaded with fascinating information. Imagine how much more professional your machine could be if they sported professionally graduated scales? And not surprisingly, variations of the techniques revealed were used to cut the dies used to cast type with which the original booklet was printed!
Code No. 007763, 60 pages, $17.00