Henry Bessemer
Overview
 
Sir Henry Bessemer was an English engineer, inventor, and businessman. Bessemer's name is chiefly known in connection with the Bessemer process
Bessemer process
The Bessemer process was the first inexpensive industrial process for the mass-production of steel from molten pig iron. The process is named after its inventor, Henry Bessemer, who took out a patent on the process in 1855. The process was independently discovered in 1851 by William Kelly...

 for the manufacture of steel.
Bessemer's father, Anthony, was born in London, but moved to Paris when he was 21 years old. He was an inventor who, while he was engaged by the Paris Mint, made a machine for making medallions that could produce steel dies from a larger model.
 
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