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Text extracted from opening pages of book: ELECTRIC WELDING ELECTRIC WELDING BY ETHAN VIALL EDITOR AMERICAN MACHINIST Member American Society of Mechanical Engineers, Society of Automotive Engineers, American Institute of Electrical Engineers, Franklin Institute, American Welding Society. Author of Manufacture of Artillery Ammunition, United States Artillery Ammunition, United States Rifles and Machine Guns, Broaches and Broaching, Gas-Torch and Thermit Welding. FIRST EDITION THIRD IMPRESSION McGRAW-HILL BOOK COMPANY, INC. NEW YORK: 370 SEVENTH AVENUE LONDON: 6 & 8 BOUVERIE ST., E. C. 4 1921 COPYRIGHT, 1921, BY THE McGRAW-HILL BOOK COMPANY, INC. PRINTED IN THE UNITED STATES OF AMERICA PREFACE Few fields afford a greater opportunity for study to the mechanic, the student, or the engineer, than that of electric welding. Arc welding, with its practical, every-day, shop appli cations for repair and manufacture, is in some respects crowding closely into the field in which the gas-torch has seemed supreme. With the development of mechanical devices for the control of the arc, the range of application to production work has greatly increased. Resistance welding presents in its various branches some of the most interesting scientific and mechanical problems to be found anywhere. Spot-welding butt-welding line-welding all occupy a particular place in our manufacturing plants today, and new uses are being constantly found. In the gathering and arranging of the material used in this book, particular care has been taken to classify and place various subjects together as far as possible. This is not only convenient for reference purposes, but enables the reader to easily compare different makes and types of apparatus. In most cases, the name of the maker of each piece of apparatus is mentioned in the description in order to save the time of those seeking information. No time or pains have been spared in the endeavor to make this the most comprehensive book on electric welding equipment and practice, ever published. Every possible source of informa tion known to the long-experienced editor has been drawn upon and properly credited. It is hoped that this book will prove a permanent record of electric welding as it is today, and also be an inspiration and source of information for those engaged in practice, research or development. ETHAN VIALL. New York City, November, 1920. 3 CM 5 v o CONTENTS PAGE PREFACE v CHAPTER I ELECTRIC WELDING HISTORICAL 1-8 The Two Classes of Electric Welding The Zerner, the Ber nardos, the Slavianoff, the Strohmenger-Slaughter and the LaGrange-Hoho Processes Early Methods of Connecting for Arc Welding Early Resistance Welding Apparatus First Practical Butt-Welding Device DeBcnardo Spot-Welds The Kleinschmidt Apparatus Bouchayer''s Machine Principle of the Harmatta Patent The Taylor Cross-Current Spot-Welding Method. CHAPTER II ARC WELDING EQUIPMENT 9-27 What Electric Arc-Welding Is^ Uses of B. C. and A. C. Schematic Layout for an Arc-Welding Outfit Carbon Electrode Process Metallic Electrode Process Selection of Electrodes Relation of Approximate Arc Currents and Electrode Diam eters Approximate Current Values for Plates of Different Thickness Illustrations of the Difference Between the Carbon and the Metallic Arc Methods Electrode Holders Sizes of Cable for Current Face Masks Selecting a Welding Outfit Eye Protection in Iron Welding Operations The Dangerous Rays Properties of Various Kinds of Glass. CHAPTER III DIFFERENT MAKES OF ARC WELDING SETS 28-46 General Electric Compound-Wound Balancer-Type Arc Weld ing Set The Welding Control Panel Connections for G. E. Welding Set Data for Metallic-Electrode Arc Butt-and Lap-Welds Carbon-Electrode Cutting Speeds The Wilson Plastic-Arc Set Panel for Wilson Welding and Cutting Set Wilson-Portable Outfit The Lincoln Outfit Westinghouse Single viii CONTENTS PAGE Operator Outfit The U. S. Outfit The Zeus Outfit The Arcwell Outfit Alternating-Current
LEARN THE ART OF WELDING FROM THE GROUND UP
Filled with step-by-step instructions and detailed illustrations, Welding, Second Edition provides an easy-to-follow introduction to oxyacetylene welding and cutting, soldering, and basic metal properties. You''ll learn how to set up your workshop, properly use welding equipment, design projects, work safely, and get professional results–even if you have no experience. With coverage of the latest tools, materials, and techniques, this fully updated, hands-on guide serves as an ideal beginner''s tutorial as well as an on-the-job reference for experienced welders.
Find out how to:
Work with oxyacetylene welding fuels, equipment, and supplies
Review other welding methods, including arc, tungsten inert gas, and gas metal arc welding
Understand the properties and weldability of various metals
Use the latest soldering tools and techniques
Master brazing, braze welding, cutting metal, and welding thicker metals
Follow welding safety procedures and troubleshoot problems
Test your knowledge with end-of-chapter review questions
Design and set up your own home workshop
Build metal projects, including a gate, fireplace grate, and workbench
arc welding schematic diagram
Double breaker has exploited one of the main electrical fault I find as a check in the house. Minneapolis and St. Paul, and they are usually the easiest one to resolve the flaw Today I will explain this double play and when. It does not matter why and how this situation.
I do not consult lawyers before writing this Article, I feel like I should add that the previous advice, however, electricity : Do not make this work if you are not qualified. An overview.
Explanation I do not know the official definition of "category two From 'This is what home inspectors say when a child or two connections. terminal screw within the control panel, sometimes refers to a second child with the other breakers. I mean the other two children with screws. Neutral bar today, I will focus on two circuit breakers play evil
When a problem does not spiral Wiring – bi if violations are properly designed for the child. If the breakers are designed for two children, he says right. breaker and terminal will be designed to accommodate two or more. This is acceptable. Knowledge production, I only make breakers that can take advantage of two Square. D and Cutler Hammer … but not all of them to attack partner
If there is a problem: It's not a problem when the breaker is designed for two children. Labels on the breaker to state explicitly
Why is the problem: If the violation is not designed to hold the second son of the son might come some point in the future even If they felt tight today. Loose child may be heated, arcing and fire.
Solution: patch below, I'll go list is common practice in handling the second circuit breaker operation.
Pigtail – generally easy to repair and best Son of a crime disconnect breakers connected to one Line rack with a wire and cable connected to the breakers. Now I know what you think, is what is difficult about that? The answer is nothing. It is quick and easy.
Foreign Breaker – another simple repair to replace breakers. Type designed for a two-panel ball is designed for that
If a problem arises over the other. Just double tap any repairable Can contribute more. For example, if the owner finished basement and add a circuit for a basement bedroom at the breaker for Bathroom cabinet by adding a cue for children will not alter the bathroom cabinet, because not enough. In general the circuit should be separated if two children share this How many ways are there to do.
Add breakers. – If there are places in the control panel switches can be added and the son of two separate circuit breakers, various
CB installed along – If circuit breaker panel designed to be coupled together and breakers used correctly in place is insolent. fix some other acceptable visit. low – profile along breaker breaker or half size Will be the main method of installation. Two breakers in the box.
If the board accepts breakers, while he said the panel and the exact location. Breakers can be used together to be identified. The Committee may allow all circuit breakers, circuit breakers, while no. Together, or some combination breaker.
If the problem above is possible repairs associated with the change of the panel. More or add subpanel will be clear very costly.
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