The great ladle in the upper portion of this picture is filled with steel at the furnace. A traveling crane then takes it to the train of flat cars on which the molds stand and the steel is poured. After cooling, the molds are removed and the steel in the form of a “billet” is taken to the next process in manufacture.
Girdling the Earth with Steel
A steel beam, red-hot, drawn out 90 feet long in a huge steel mill in Pittsburgh. Steel rolled here may find its place as part of a skyscraper in the Babel of New York, be builded into the framework of a vessel in the shipyards of San Francisco, or help to construct a railroad into the heart of China.
Copyright by Underwood & Underwood, N. Y.
Armor Plate Forging Press
The Bethlehem Steel Company installed this great hydraulic press to replace a 135-ton steam hammer, which was abandoned because the shock of its blow disturbed the alignment of the big machines in nearby shops. This press is the largest of its kind in the world, having a capacity of 15,000 tons, induced by pressure as much as 7,000 pounds per square inch in its two hydraulic cylinders of over 501⁄2 inches diameter.