Open-hearth furnace
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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. Because steel is dif
Open hearth furnace workers at the Zaporizhstal steel mill in Ukraine taking a steel sample, c. 2012
Tapping open-hearth furnace, VEB Rohrkombinat Riesa, East Germany, 1982
Tapping open hearth furnace, Fagersta steelmill, Sweden, 1967.
Siemens furnace from 1895.
Carl Wilhelm Siemens
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Sir Carl Wilhelm Siemens, anglicised to Charles William Siemens, was a German-British electrical engineer and businessman. He was born on April 4, 1823, in the Kingdom of Hanover and died on 19 Novemb
Open-hearth furnace
…and permitted the melting and refining of large amounts of scrap iron and steel. The open-hearth furnace was first developed by German/British engineer Carl Wilhelm Siemens. In 1865, the French engineer Pierre-Émile Martin took out a licence from Siemens and first applied his regenerative furnace for making steel. Their…
Carl Wilhelm Siemens
The 4-cylinder experimental gas engine subject of Siemens patent (image taken from Theory of the Gas Engine by Dugald Clerk in 1882)
CS Faraday