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...

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