William kelly lived in quiet retirement in louisville ky until his death on feb. Further innovations in steelmaking notably by robert mushet of england and goran goransson of sweden made the pneumatic process practical.

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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 and william kelly. A william kelly of the united states did patent the same type of discovery but the date was a few years after bessemer. Henry bessemer in the u k. Blast furnaces were further improved in the 1850s by the simultaneous invention of the pneumatic conversion process by william kelly and henry bessemer.

How the bessemer process changed the world. Since necessity is the mother of invention and steel was necessary in the 1850s sir henry bessemer invented a new process to make guns while william kelly a metallurgist invented the same process. But steel was too expensive to make the guns needed by the crimean war.

William kelly 1856 yakni pada saat yang hampir bersamaan dengan sir henry bessemer di amerika serikat dikembangkan pula metoda penggunaan convertor ini kendati tidak dipatenkan namun setelah mempelajari sistem bessemer william kelly menyatakan telah memperbaharui sistem bessemer dan mendaftarkan hak patennya di amerika akan tetapi mengalami kebangkrutan. 1813 1898 did produce the first patent and became known for the steel making process. Who perfected bessemer process.

Henry bessemer william kelly the bessemer process kelly was college educated and he was an american inventor. Patent superseding bessemer s patents. Kelly proves patent priority in 1857.

This process directed the blasts of air into the molten metal either overhead or directly into the metal through holes in the bottom of the kettle. Kelly purchased an iron factory in eddyville ky in 1846. There are very few things in history that you can genuinely say changed the world.

Today sir henry bessemer is still widely accepted as the inventor and first inventor of the process. 1851 sir henry bessemer and william kelly both invent a simple converter that uses blasts of air to burn out the impurities silicon manganese and excess carbon in pig iron. He was the actual inventor of the bessemer process but due to bankruptcy he had to sell his patent to henry bessemer who then took all credit for the invention.

Kelly who was born in 1811 in pittsburgh pa entered the dry goods business after studying metallurgy at the western university in pennsylvania. Also patented by sir henry bessemer of great britain this process produced the first inexpensive steel which became the major construction material in the burgeoning industrial age. Although kelly is the first to use a converter bessemer obtains the u s.

When kelly heard of bessemer s patents he filed a priority claim and in 1857 received a u s. Bessemer invented over 100 items in the fields of iron steel and glass.