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of Delta Works, Blackwall Lane, East Greenwich, London SE10 and at Dartmouth Street, Birmingham.
of Delta Works, Dartmouth Street, Birmingham. Telephone: ASTon Cross 1971, P.B. Ex. Telegraphic Address: "Extrusion, Birmingham". (1937)
Delta Metal Co, originally at Greenwich and Birmingham, and elsewhere. A large group was formed by takeovers of companies such as Enfield Rolling Mills, Earle, Bourne and Co, Barker and Allen Ltd, Aston Chain and Hook Co, and others. The Delta Group have now largely closed or sold off their metal making interests.
1883 Company established by Alexander Dick
1888 The Birmingham company established at Dartmouth Street.
1888 March 12th. Incorporated as a limited company to acquire the business of Alexander Dick, patentee and manufacturer of metallic alloys. 
1897 Installed a metal extrusion press at their Dartmouth Street factory in Birmingham.
1899 Advert for castings, forgings, sheets, bars, stamping, tubes, wire. Malleable bronze. (Works at London and Airdrie) 
1912 Exhibitor at the Non-Ferrous Metals Exhibition at the Royal Agricultural Halls.
1913 Advert for engineering alloys. 
1914 Specialities: "Delta Metal" High-class Engineering Alloys, "Dixtrudo" High-speed Turning and Screwing Brass and "Dixtampo" Yellow Metal, Dick's Patent Extruded Metals, Brass Bronze and Copper Rods, Gun metal, Babbitt's Metal, Manganese, Phosphor and Aluminium Bronzes.
1917 Advert for engineering alloys. 
1919 Advert for engineering alloys. 
1927 Advert for engineering alloys. 
1937 Metal manufacturers. "Delta" and "Deltoid" Metal Products. "Dixtampo" and "Dixtrudo" Metal Products. 
1937 Listed Exhibitor - British Industries Fair. Manufacturers of Brass Road for High Speed Turning. Shaped Bars in Brass, Bronze, Copper and other Delta Alloys. Fancy shaped and Beaded Wire. Hot Stampings and Pressings. Delta Bronze Casement Bars, etc. (Stand No. D.401) 
1957 Acquired James Booth and Co
1961 Agreement with Enfield Rolling Mills to form new joint company Delta Enfield Rolled Metals to merge the rolled copper, brass sheet and strip section activities of the two companies; production would continue at Brimsdown and Birmingham. Acquired Davis and Timmins, converting a customer into a subsidiary
1962 Acquired John Webb and Co, and Manley and Regulus, makers of water fittings, as part of the strategy to acquire users of the metals that the company's mills produced, in order to ensure demand was maintained.
1971 Dartmouth Street works closed.
1971 Acquired MEM Co, switchgear manufacturer
1972 Acquired British Electrical Repairs Limited
1978 Refrigeration Appliances was a member of the Enfield Rolling Mills Division of the Delta Group, specialising in the manufacture of heat exchangers and components for commercial and industrial refrigeration, for food processing and storage
1988 Acquired FL Surprenant of the USA
1998 Acquired Holec of Holland, switchgear manufacturer.
2003 Electrical Division of Delta was acquired by Eaton Corporation of USA