In the year of 1855.
The Bessemer steel converter is a large container in which molten iron is converted into steel. The Bessemer steel converter was invented by Henry Bessemer in 1856.
Henry Bessemer invented the Bessemer Converter
The Bessemer converter was patented in 1855.
The Bessemer converter removes impurities from pig iron and produces steel.
Answer Henry Bessemer invented The Bessemer Process or Converter. This was a cheaper and more efficient method of making steel.
The bessemer process was invented by Sir Henry Bessemer.
That would be Henry Bessemer, inventor of the Bessemer Converter which allowed the processing of Steel on an industrial scale. The process involves the removal of impurities (an important factor in Steel manufacture) through oxidation.
The bessemer process was invented by Sir Henry Bessemer.
The Bessemer Steel Converter in Operation - 1902 was released on: USA: April 1902
Steel
It was invented in 1851 by William Kelly but was was independently invented by Henry Bessemer in 1855 (and Bessemer took out a patent on the process).
Henry Bessemer developed a way to make steel by melting and burning pig iron. Pig iron is the result of mining and refining iron ore. Before steel, he worked with glass, but his glass making process was not practical.