Cold-Heading (Classic Reprint)

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Excerpt from Cold-Heading The operation of forming the heads of rivets, wood screw blanks, machine screw blanks, and similar products, by upsetting the ends of the wire lengths while cold, is known as cold-heading. The machines to which the wire is fed from a coil, and in which it is cut off and headed, are known as cold-headers. It is the purpose of this treatise to describe brie¿y the operation of various types of heading machines, to enumerate some of the limitations and possibilities of the different cold-heading machines and to give a general idea of the way in which the tools are planned and made for this class of machinery. No 'at tempt will be made to cover the heading of hot stock such as is fol lowed in making hot-formed bolts, as this type of machinery comes under the head of forging machinery, and is separately described in machinery's Reference Books No. 113, Bolt, Nut and Rivet Forging, and No. 114, Machine Forging. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully, any imperfections that remain are intentionally left to preserve the state of such historical works.