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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 ...
A bloomery is a type of metallurgical furnace once used widely for smelting iron from its oxides. The bloomery was the earliest form of smelter capable of smelting iron. Bloomeries produce a porous mass of iron and slag called a bloom. The mix of slag and iron in the bloom, termed sponge iron, is usually consolidated and further forged into ...
Puddling (metallurgy) Schematic drawing of a puddling furnace. Puddling is the process of converting pig iron to bar (wrought) iron in a coal fired reverberatory furnace. It was developed in England during the 1780s. The molten pig iron was stirred in a reverberatory furnace, in an oxidizing environment to burn the carbon, resulting in wrought ...
91001132 [1] Added to NRHP. September 6, 1991. Codorus Forge and Furnace Historic District, also known as Hellem (Hellam) Forge, is a historic iron forge and national historic district located at Hellam Township in York County, Pennsylvania. The district includes four contributing buildings, one contributing site, and one contributing structure.
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 ...
In the back room (right) is a large pile of charcoal. A finery forge is a forge used to produce wrought iron from pig iron by decarburization in a process called "fining" which involved liquifying cast iron in a fining hearth and removing carbon from the molten cast iron through oxidation. [1] Finery forges were used as early as the 3rd century ...
Hopewell (on Hammer Creek) Coordinates: 40.220°N 76.325°W. Hopewell is an historic, American iron manufacturing site that is located near Hammer Creek in Lancaster County, Pennsylvania. The site where Peter Grubb first began his iron making activities sometime around 1739, it is located approximately six miles southeast of Cornwall ...
Iron furnace. MPS. Iron and Steel Resources of Pennsylvania MPS. NRHP reference No. 91001140 [1] Added to NRHP. September 6, 1991. The Swatara Furnace is a historic iron furnace and 200-acre national historic district located along Mill Creek, a tributary of the Swatara Creek in Pine Grove Township, Schuylkill County, Pennsylvania. [2] [3] [4] [5]