Grace's Guide

British Industrial History

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George Ernest Murray Stone

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George Ernest Murray Stone (1874- )

1922 A.M.I.E.E., M.Inst.Met., Specialist in Pyrometry, "Northfield," Dronfield Woodhouse, Dronfield. T. N. "Dronfield 42." b. 1874. Honours, City and Guilds of London Institute in Electrical Engineering; Sheffield Technical School (afterwards Sheffield University), 1892-5, and private study. In business with his father as A. F. Stone and Son, electrical engineers, Sheffield, 1897-1909. Superintendent of Pyrometric Section, Brown-Firth Research Laboratories, Sheffield, 1909-17 (John Brown and Co., Ltd., and Thos. Firth and Sons, Ltd.); Superintendent of Pyrometric Department, Sir W. G. Armstrong, Whitworth and Co., Ltd., Elswick Works, Newcastle-on-Tyne, and Openshaw Works, Manchester, 1917-20, and Cons. in Pyrometry for same, firm, 1920 to date; also Pyrometric Adviser to Midland Laboratory Guild, Ltd., Birmingham, 1918 to date. Man. Dir. and Sec., R. F. Hamilton and Co., Ltd., Scientific Instrument Manufacturers, Sheffield, 1920 to present time. Chief Works: Stone's Patent "Electro-Mechanical Pull " for stopping engines and machinery in case of accident in factories, also originator of methods and various forms of thermo-couples for steelworks pyrometry. Publications: Paper before Faraday Society on " Causes of Unreliability in Thermo-Electric Pyrometry " (1917). War Services.—Designed Stone's Pyrometer for molten metals (patent), for indicating correct pouring temperatures of cupro-nickel for bullet-cases; pyrometric control systems for heat treatment of war material for Sir W. G. Armstrong, Whitworth and Co., Ltd.


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