Prima ricerca su Imperial Smelting Corporation

-Fu fondata con il nome di National Smelting Company durante la prima guerra mondiale per volere di winston Churchill ad Avonmouth, sobborgo della città portuale di Bristol, per produrre zinco, acido solforico ed iprite per uso bellico;
-Nel 1929 fu acquistata dalla società Australia's Imperial Smelting Corporation per poi essere fusa assieme alla Zinc Corporation nel 1949 per diventare la Consolidated Zinc;
-Nel 1950 viene sviluppato l'omonimo processo di fusione dello zinco Imperial Smelting Process;
-Nel 1962 la Consolidated Zinc si fonde con la Rio Tinto Company per diventare  la Conzinc Riotinto. Attualmente chiamata Rio Tinto Group;
-Negli anni settanta cessa la produzione ma la sezione di Avonmouth rimane aperta come centro di distribuzione fino al 2003.

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Prima fonte, Cambridge University, F. Greenaway

Da pagina 294 a pagina 296:   A History of the Zinc Smelting Industry in Great Britain. By E. J. Cocks and B. Walters . London: Harrap. I968. Pp. vi+224, 42 illustr. /j2.75. The final words of the preface to this book arouse expectations: " Coal, iron, steel, textiles and railways have appeared to monopolise the attention of industrial historians hitherto, and a great deal more information on the development of the non-ferrous metals and chemical industries would help towards correcting the rather distorted picture that the average textbook gives of our continuing Industrial Revolution."  If this book fails to live up to the implied ambition to produce a revealingf work, it is because it is a piece d'occasion tied too tightly for historical perspective to the event which produced it, namely, "the 50th anniversary of the first beginnings of what is now the Imperial Smelting Corporation Limited, the group which has been, since 1933, the sole processo...
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Testo terza fonte, Clark University, F. Walker

Pagine 180-181: Local zinc first became important during the 17th century when it was used in manufacture of brass along with Cornish copper which could be bought very cheaply at the period as a bye-product of the gold, silver and tin mining and which was easily shipped to It was during the 18th century however that manufacture of lead, brass and zinc developed most rapidly in Bristol. By the middle of the century there was a large lead-producing plant near Hotwells and in 1752 the making of lead shot was commenced in Bristol and still remains as a specialised local industry. The large scale production of zinc commenced in 1743 at Warmley , whilst Cornish copper was smelted in Bristol to supply the local brass in dustry which in the later half of the century expanded to such an extent that it was producing half the total British output of brass wire. In the 20th century production and use of brass and copper has declined though there are still a number of firms in Bristol engag...
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