Search results
Results from the WOW.Com Content Network
Henry Bessemer worked on the problem of manufacturing cheap steel for ordnance production from 1850 to 1855 when he patented his method. [14] However, William Kelly , an American inventor in Kentucky, received a priority patent in 1857, effectively nullifying Bessemer's 1855 US patent.
Bessemer steel was used in the United States primarily for railroad rails. During the construction of the Brooklyn Bridge, a major dispute arose over whether crucible steel should be used instead of the cheaper Bessemer steel. In 1877, Abram Hewitt wrote a letter urging against the use of Bessemer steel in the construction of the Brooklyn Bridge.
Another English metallurgist, Henry Bessemer, had just created the Bessemer process, which entailed blowing air or pure oxygen through liquid cast iron to burn off the carbon. At the time, there was another laboratory-scale process of adding potassium nitrate to cast iron to produce oxygen and burn off the carbon, thereby producing steel.
Steel is an alloy composed of between 0.2 and 2.0 percent carbon, with the balance being iron. From prehistory through the creation of the blast furnace, iron was produced from iron ore as wrought iron, 99.82–100 percent Fe, and the process of making steel involved adding carbon to iron, usually in a serendipitous manner, in the forge, or via the cementation process.
This process is used most frequently to cast steel (in terms of tonnage cast). Aluminium and copper are also continuously cast. Sir Henry Bessemer, of Bessemer converter fame, received a patent in 1857 for casting metal between two counter-rotating rollers. The basic outline of this system has recently been implemented today in the casting of ...
From the Iron and Steel Institute, of which he was a member from 1875, a member of council in 1888, and a vice-president in 1901, he received the Bessemer Gold Medal in 1889, when Sir Henry Bessemer acknowledged Ellis's services in establishing the process.
The problem of mass-producing cheap steel was solved in 1855 by Henry Bessemer, with the introduction of the Bessemer converter at his steelworks in Sheffield, England. (An early converter can still be seen at the city's Kelham Island Museum). In the Bessemer process, molten pig iron from the blast furnace was charged into a large crucible, and ...
Steel construction was first made possible in the 1850s when Henry Bessemer developed the Bessemer process to produce steel. He gained patents for the process in 1855 and 1856 and successfully completed the conversion of cast iron into cast steel in 1858. [ 21 ]