The Progress of Invention in the Nineteenth Century. by Edward W. Byrn

CHAPTER XXIX.

METAL WORKING. Early Iron Furnace. Operations of Lord Dudley, Abraham Darby, and Henry Cort. Neilson’s Hot Blast. Great Blast Furnaces of Modern Times. The Puddling Furnace. Bessemer Steel and the Converter. Open Hearth Steel. Regenerative Furnace. Siemens-Martin Process. Forging Armor Plate. Making Horse Shoes. Screws and Special Machines. Electric Welding, Annealing and Tempering. Coating with Metal. Metal Founding. Barbed Wire Machines. Making Nails, Pins, etc. Making Shot. Alloys. Making Aluminum, and Metallurgy of Rarer Metals. The Cyanide Process. Electric Concentrator.