Oxy-Acetylene Welding And Cutting - Including The Operation And Care Of Acetylene Generating Plants And The Oxygen Process For Removal Of Carbon

PREFACE The Oxy-acetylene flame is now used to advantage in welding practically all metals, as steel, cast iron, malleable iron, brass, bronze, copper, aluminum, sheet iron and silver. Its success has been proved beyond a doubt. Engine and machine parts of any metal, automobile castings and the like are as strong as any part of like dimensions when welded. A brief description of all principal kinds of welding is given, including, fire welding, welding by water gas, thermit welding, brazing and blowpipe welding. The advantages and disadvantages of each are discussed. Manufacturers, contractors, machine shops, garages, blacksmiths, boiler ma. kers, repair shops, foundries, steel , mills and railroad shops are rapidly adding the osy-acetylene process to their equipment. In cutting beams, girders, steel sheeting, heavy piston rods, steel plates, gates from steel castings, wrecking steel building frames or bridges, the work can be done much cheaper and in less time than by the old methods. In thepreparation of this book the author has endeavored to cover every practical point in the process of. welding and cutting and the removal of carbon with oxygen. Enough of the theory has been included to enable the practical man to acquire a thorough understanding of the subject. Reference to the table of contents on the following pages will show the scope of the book. Numerous illustrations of distinct advantage to the operator have been included. CONTENTS CHAPTER I PAGE WELDIN G-V arious Methods-At the Forge-By Water Gas-Thermit Welding-Brazing-Blowpipe Welding - Adaptability-Quality - Economy - Convenience - Cost of Material.. .................................. 9 WELDING F LAM E - 0 S x y-Acetylene Flame-Temperature - Combustion-Utilization of Heat-Regulation-Oxy-Hydrogen Flame - Temperature - Uses - Other Gas Flames-Oxy-Coal Gas-Oxy-Benz.. .................. 18 OXYGEN-Properties, Physical and Chemical-Manufacture-Electrolysis of Water--Extraction from Air-From Chlorate of Potash-In Cylinders-Compression - Volume-Pressures and - Temperatures-Handling-Valves-Purity-Analysis ........................ 28 ACETYLEN - EC arbide of calcium-Manufacture of Carbide-Classifications-Generators-Principles of Production-Heating-Polymerization-Excess Production - Classification-Comparison of Systems-Water to Carbide-Dipping-Carbide to Water-Automatic-Non-Automatic-Working Guarantees-Special Generat. ors ........................................ 48 ACETYLENGE AS PURIFICATION AN D HANDLIN G-1 mpurities-Purification for Welding-Process-Materials-Catalysol-Purifier Position and Maintenance-Installation and Maintenance of Plant-Location-Insurance Regulations-Charging and Cleaning-Precautions-Light-Dissolved Acetylene-In Acetone-Porous Materials - Cylinders - Contents - Use - Advan-tages-Manipulations and Precautions. .............. 67 7 S CONTENTS CIIAPTER V1 PAGE OXY-ACETYLEN T E O RCHES-Requirements-Clasification - For High Pressure-For Medium Pressure-For Low pressure and Fixed Delivery-Injector Action-For Low Pressure and variable e l i v e r - e l d i n Torches ........................ .................... 85 CHAPTERV 11 CHARACTERISTI O C F SW ELDINGT ORCHE S-C hoice of Torch - Medium Pressure - Low Pressure - Weight-Man-agement-Maintenance ............................. 98 CHAPTERV 111 WELDING . INSTALLAT - I P O ip N in S g-ConSections-Safety Valves-Oxygen Reducing Valves-Flexible Tubes and Connectors-Welding Table-Preparation of Welds-Adjusting .................