The Edison and Swan
Electric Light Company Limited was a manufacturer
of incandescent lamp bulbs and other electrical goods. It was formed
in 1883 with the name Edison & Swan United
Electric Light Company
with the merger of the Swan United
Electric Company and the Edison
Electric Light Company.
Thomas Edison established the Edison
Electric Light Company in 1878.
Joseph Swan established the Swan United
Electric Light Company in
1881. In 1882 the American Edison Company of
Thomas Edison sued Swan,
claiming infringement of Edison's U.S. patent of 1879; however, they
never made it to court and instead negotiated a merger with Swan's
company. The lamps sold in Britain were almost entirely to Swan's
design, excepting the filaments. From 1887 or earlier Sir Ambrose
Fleming was an adviser to the company, and conducted research at
The company had offices at 155 Charing Cross Road, London, and
factories in Brimsdown,
Ponders End and Sunderland. In 1928, the
company was acquired by Associated Electrical Industries. In 1956, a
new cathode ray tube plant was opened in Sunderland. The company was
renamed Siemens Ediswan following the takeover of
Siemens Brothers by
AEI in 1957. In 1964, AEI merged its lamp and radio valve
manufacturing interests with those of
Thorn Electrical Industries to
form British Lighting Industries Ltd.
1 Ediswan Valves
2 See also
4 External links
Edison Swan (or later Siemens Edison Swan) produced a wide range of
vacuum tubes and cathode ray tubes under the names "Ediswan" or
"Mazda" and the 1964 Mazda Valve Data Book claimed: "Professor Sir.
Ambrose Fleming... was Technical Consultant to the Edison Swan Company
at the time. It was this close co-operation between University and
Factory which resulted in the first radio valve in the world."
La Compagnie des Lampes (1921), EdiSwans French counterpart, which
also made light bulbs and electronic tubes under the Mazda brand
^ a b The Edison and Swan
Electric Light Company Limited. Science
Museum Group: Collections Online - People. Accessed September 2013.
^ "Railway and other Companies" Times [London, England] 3 Oct. 1883:
11. The Times Digital Archive. Web. 12 Sept. 2013.
^ Stathis Arapostathis, Graeme Gooday (2013). Patently Contestable:
Electrical Technologies and Inventor Identities on Trial in Britain.
Cambridge, Massachusetts; London: MIT Press. ISBN 9780262019033.
p. 183. Accessed September 2013.
^ C. N. Brown (2011). Swan, Sir Joseph Wilson (1828–1914). Oxford
Dictionary of National Biography. Oxford University Press.
doi:10.1093/ref:odnb/36382. (subscription required)
^ MS ADD 122: Fleming Papers. University College London Archives.
Accessed September 2013.
^ "History of the radio manufacturer Ediswan (Brand) Edison Swan
Electric Co.Ltd". Retrieved 23 June 2014.
^ "Mazda Valves". Archived from the original on 2013-06-28. Retrieved
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