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1 CAME
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2 Williamson, David Theodore Nelson
[br]b. 15 February 1923 Edinburgh, Scotlandd. 1992 Italy[br]Scottish engineer, inventor of the Williamson Amplifier and computer-controlled machine tools.[br]D.T.N.Williamson was educated at George Heriot's School, Edinburgh, and studied mechanical engineering at the University of Edinburgh and electrical engineering at Heriot-Watt College (now Heriot-Watt University), Edinburgh. He joined the MO Valve Company in London in 1943 and worked in his spare time on improving the sound reproduction for gramophones, and in 1946 invented the "Williamson Amplifier".That same year Williamson returned to Edinburgh as a development engineer with Ferranti Ltd, where he was employed in developing computer-controlled machining systems. In 1961 he was appointed Director of Research and Development at Molins Ltd, where he continued work on computer-controlled machine tools. He invented the Molins System 24, which employed a number of machine tools, all under computer control, and is generally acknowledged as a significant step in the development of manufacturing systems. In 1974 he joined Rank Xerox and became Director of Research before taking early retirement to live in Italy. Between 1954 and 1979 he served on numerous committees relating to computer-aided design, manufacturing technology and mechanical engineering in general.[br]Principal Honours and DistinctionsFRS 1968.BibliographyWilliamson was author of several papers and articles, and contributed to the ElectronicEngineers' Reference Book (1959), Progress in Automation (1960) and the Numerical Control Handbook (1968).RTSBiographical history of technology > Williamson, David Theodore Nelson
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