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Charles William Siemens (1823-1883), German-British engineer. Born in Germany as Carl Wilhelm Siemens, he came to England in 1843 where he settled and became a naturalized citizen in 1859. He developed a regenerative furnace that recovered heat from exhaust gases. He also worked with electric telegraphs, designing the ship that laid the first trans-Atlantic cable in 1874. Elected Fellow of the Royal Society in 1862, Siemens was President of the Institution of Electrical Engineers in 1872 and 1878. He was knighted in 1883. Portrait from 'History of the Institution of Electrical Engineers 1871-1931' (Appleyard, 1939).
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