The Locomotive . The Hartford Boiler Insurance Boilers, Economizers, Vulcanizers, Kiers, Digesters, Steam Driers, Jacketed Kettles, Etc. Flywheel Insurance Flywheels, Fans, Blowers, Turbines, Water Wheels, Centrifugal Driers, Gear Wheels, Etc. Engine Insurance Engines, Compressors, Pumps, Refrigerating Machines, Etc. Electrical Machinery Insurance Generators, Motors, Synchronous Converters, Transformers, Switchboards, Etc. Consult your agent or broker or =Krite fordetails to the nearest branch office of THE HARTFORD STEAM BOILER INSPECTION and INSURANCE CO. HARTFORD CONNECTICUT The oldest in t
The Locomotive . The Hartford Boiler Insurance Boilers, Economizers, Vulcanizers, Kiers, Digesters, Steam Driers, Jacketed Kettles, Etc. Flywheel Insurance Flywheels, Fans, Blowers, Turbines, Water Wheels, Centrifugal Driers, Gear Wheels, Etc. Engine Insurance Engines, Compressors, Pumps, Refrigerating Machines, Etc. Electrical Machinery Insurance Generators, Motors, Synchronous Converters, Transformers, Switchboards, Etc. Consult your agent or broker or =Krite fordetails to the nearest branch office of THE HARTFORD STEAM BOILER INSPECTION and INSURANCE CO. HARTFORD CONNECTICUT The oldest in the Country, the largest in the world Vol. XXXVII No. 6 April 1929. A QUARTERLY MAGAZINEDEVOTED TO POWER PLANT PROTECTION Published continuously since 1867 b} The Hartford Steam Boiler Inspection and Insurance Compan} Please show to vour Enoineer 162 THE LOCOMOTIVE April Cause and Prevention of Internal Corrosion oj Boilers By William D. Halsey, Mechanical Eng. The general subject of corrosion involves so tnany ramifica-tions — by reason of the varied conditions under which corrosion() may occur — that at least a volume would be required for any- (*f where^ near adequate treatment. Recognising that fact, the author *of this article has limited discussion to the variety of corrosioncommonly found inside boilers. He has, we believe, succeeded indealing with this specific phase of the subject in a zvay which ourreaders will find interesting. THE subject of corrosion has, for years, been one of careful studyby many investigators. Numerous theories have been advancedas to the cause, and all of them have seemed to fit some particularcondition under inve
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