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Full-Text Articles in Engineering

The Manufacture Of Sulphuric Acid By The Chamber Process At Isabella, Tennessee, Albert Leo Trent Jan 1921

The Manufacture Of Sulphuric Acid By The Chamber Process At Isabella, Tennessee, Albert Leo Trent

Professional Degree Theses

"As the regions surrounding the smelteries are growing more densely populated, the companies operating in these districts find if necessary in many cases to take care of their waste gases which are injurious to the surrounding vegetation and thereby avoid many expensive lawsuits and claims from the land owners in the district...The smelters at once began to look around for some method of taking care of their fumes...The companies then began to install the more expensive process of handling their fumes by adding a sulphuric acid plant to their smeltery. This is very expensive to install but is not only …


The Heat Treatment Of Cast Steel, Fred Grotts Jan 1921

The Heat Treatment Of Cast Steel, Fred Grotts

Professional Degree Theses

"Owing to many difficulties reported from the battle fields of France also from many sections of the United States, Mexico, Africa and South America relative to the functioning of the "Caterpillar" track an intensive research was begun early in the spring of 1919 to develop or perfect a material that could be made into intricate forms and which would have such physical properties as would withstand to a maximum degree, the abrasive action of rock and sand while at the same time having a high tensile strength and resistance to shock. A further requisite was that this material must be …