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Open-hearth furnace. An open-hearth furnace or open hearth furnace is any of several kinds of industrial furnace in which excess carbon and other impurities are burnt out of pig iron to produce steel. [1] Because steel is difficult to manufacture owing to its high melting point, normal fuels and furnaces were insufficient for mass production of ...
Cornwall Iron Furnace is a designated National Historic Landmark that is administered by the Pennsylvania Historical and Museum Commission in Cornwall, Lebanon County, Pennsylvania in the United States. The furnace was a leading Pennsylvania iron producer from 1742 until it was shut down in 1883. The furnaces, support buildings and surrounding ...
A blast furnace is a type of metallurgical furnace used for smelting to produce industrial metals, generally pig iron, but also others such as lead or copper. Blast refers to the combustion air being supplied above atmospheric pressure. [citation needed] In a blast furnace, fuel ( coke ), ores, and flux ( limestone) are continuously supplied ...
In 1847, iron rails for the Erie Railroad were made at the site. By 1865, Scranton, Grant & Company had the largest iron production capacity in the United States. In 1875, steel production was initiated at the site. By 1880, the furnaces produced 125,000 tons of pig iron, one of the main uses of which was the manufacture of t-rails.
March 7, 1973. The Illinois Iron Furnace is a historic iron furnace located in Shawnee National Forest near Rosiclare, Illinois. The stone and brick furnace was built sometime between 1837 and 1839 and was originally owned by businessmen Chalon Guard and Leonard White. The furnace was used to smelt locally mined iron ore; the resulting iron ...
Oregon Iron Company Furnace. / 45.4109833°N 122.6607000°W / 45.4109833; -122.6607000. The Oregon Iron Company Furnace, or Oswego Iron Furnace, is an iron furnace used by the Oregon Iron Company, in Lake Oswego, Oregon 's George Rogers Park, in the United States. The structure was added to the National Register of Historic Places [3 ...
There are 16 properties and districts listed on the National Register in the county. Ten of these are the ruins of iron furnaces. In the 19th century, Stewart County was a major center for iron mining and production. Production of iron in the county began some time shortly before 1828 and continued until 1927, when the last blast furnace shut down.
Peter Grubb (c.1702—1754), the founder of the Grubb Family Iron Dynasty, discovered Cornwall Iron Minesand established Cornwall Iron Furnace, together one of the largest ironworks in Colonial Pennsylvania.[1] The Cornwall Iron Mines are the largest U.S. iron mines ever discovered east of Lake Superior. The youngest of the seven sons of John ...