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Other innovations followed. Engineers at the foundry invented a power-driven rolling method to weld and forge wrought iron, a process that enabled the iron company to begin producing cannon for the United States Army. [3] In the late 20th century, the company declined along with the steel and iron industry of Pennsylvania.
Yett hanging in the main entrance of Blackness Castle, Scotland, showing attached bolts and pierced construction.Wrought in 1693. [1]A yett (from the Old English and Scots language word for "gate") [2] is a gate or grille of latticed wrought iron bars used for defensive purposes in castles and tower houses. [3]
An ironworker is a tradesman who works in the iron-working industry. Ironworkers assemble the structural framework in accordance with engineered drawings and install the metal support pieces for new buildings. They also repair and renovate old structures using reinforced concrete and steel.
Stewart Iron Works is an American ironworks plant in Erlanger, Kentucky. It is one of the region's oldest manufacturing firms and at its peak was the largest iron fence maker in the world. [1] [2] Stewart's is the second-oldest iron company in continuous operation in the United States. [3]
The J. L. Mott Iron Works was established by Jordan L. Mott in New York City in the area now called Mott Haven in 1828. [2] Mott was previously a grocer but he transitioned to iron works when he invented the first cast iron stoves that could burn anthracite coal. [ 1 ]
Wrought iron is an iron alloy with a very low carbon content (less than 0.05%) in contrast to that of cast iron (2.1% to 4.5%). It is a semi-fused mass of iron with fibrous slag inclusions (up to 2% by weight), which give it a wood-like "grain" that is visible when it is etched, rusted, or bent to failure.
The Wrought Iron Bridge Company specialized in relatively short-span iron truss bridges. Most were built for highway use, as the railroads were all privately owned at the time and employed their own engineers. The company supplied a catalog of bridge designs and mass-produced the parts to build these designs.
Based in City of Industry, it has three facilities for product assembly, shipping, management, and customer service. [4] The company produces a range of residential lock products, including tubular locks, interior door knobs and levers, key locking hardware sets, electronic keyless locks, deadbolts, hinges, dutch door bolts and Mortise locks.
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