Sidney Gilchrist Thomas

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The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Thomas, Sidney Gilchrist


Born Apr. 16, 1850, in Canonbury, near London; died Feb. 1,1885, in Paris. English metallurgist.

Thomas studied the humanities in college. While working as a clerk in a London court, he attended evening courses at the Royal School of Mines. In 1878, together with his cousin P. Gilchrist, he solved the problem of dephosphorizing high-phosphorus pig iron in the Bessemer converter by developing the Thomas-Gilchrist process. Between 1877 and 1882, Thomas took out a number of patents for making steel by this method. He proposed that the high-phosphorus slag produced by his process be used as fertilizer.


Pokrovskii, Iu. M. “Sidni Dzhilkrist Tomas (1850–1885 gg.) i znachenie tomasovskogo protsessa dlia metallurgii.” Voprosy istorii estestvoznaniia i tekhniki, 1960, issue 10.
Mezenin, N. A. Povest’ o masterakh zheleznogo dela. Moscow, 1973.
The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
You can watch as the giant puppet "collects" coal from the Big Pit Museum and parades it through the Gilchrist Estate before "selling" it at the main event at Blaenavon Ironworks, where Sidney Gilchrist Thomas and a host of choirs, brass bands and theatrics await.
Often called Bessemer converters, they are also called Gilchrist-Thomas converters, after their inventor Sidney Gilchrist Thomas.
In 1877, Sidney Gilchrist Thomas (1850-1885) and his cousin Percy Gilchrist (1851-1935) invented the 'Thomas process' at Blaenfaon.
IN the 1870s, cousins Sidney Gilchrist Thomas and Percy Gilchrist discovered a method to produce steel and transformed the industry throughout the world.
Sidney Gilchrist Thomas was a chemist working in London.
Carnegie is supposed to have said that when the history books would come to be written, what the two cousins Percy Carlyle Gilchrist and Sidney Gilchrist Thomas had achieved in Blaenavon would be accounted as far more important than all the doings of all the Kings and Queens of England!
From Branwen ferch Llyr to Gwenllian, and Llywelyn the Great to Sidney Gilchrist Thomas, the audio guides each link to a specific theme on the Wales History Map, and can be downloaded and listened to while exploring sites.
The chemists of Blaenavon In 1876, Sidney Gilchrist Thomas worked on experiments at Blaenavon Ironworks with cousin, Percy Carlyle Gilchrist which led to a discovery that changed steel manufacturing worldwide.
PERCY GILCHRIST: With his cousin Sidney Gilchrist Thomas, this chemist at the Blaenavon ironworks discovered a way to eliminate phosphorus from steel in 1876.