author: peter spear dingey

Machinery Pattern Making Containing Full Size Profiles of Gear Teeth: And Fine Engravings on Full-page Plates, Illustrating Manner of Constructing Numerous and Important Patterns and Core Boxes

... Patterns and Core Boxes Peter Spear Dingey. IT is assumed that those who will read this book do not need the rudiments of pattern making presented , therefore the elementary part of the business , which to most pattern makers is so ...