This vintage book contains a detailed guide to triangulation as applied to sheet metal pattern cutting, originally designed for the use of cutters, draughtsmen, foremen, and students. With detailed diagrams and a wealth of useful information, this volume will be of considerable utility those with an interest in sheet metal work. Contents include: "e;Elementary Principles"e;, "e;A Simple Transitional Fitting"e;, "e;The Oblique Cone"e;, "e;A Transitional Fitting From Rectangular to Round Which Makes an Offset"e;, "e;A Twisted Transitional Fitting"e;, "e;The Pattern for the Frustum of an Oblique Cone"e;, "e;A Transitional Fitting From Oblong to Round"e;, et cetera. Many vintage books such as this are increasingly scarce and expensive. We are republishing this volume now in an affordable, modern edition complete with a specially commissioned new introduction on metal work. First published in 1917.