Paxman
In 1940 R&H bought a controlling interest in the well-known Paxman diesel engine company of Colchester in Essex. In the later stages of the war, Paxman built 4,000 diesel engines that powered all the British-built tank landing craft (LCT) on D-Day. It supplied diesel engines for British Rail locomotives in the 1960s. From 1954 to 1964 the company's Managing Director was Geoffrey Bone who had been part of the Power Jets team, and whose father Victor Bone was Managing Director of R&H from 1944 until his death. It was due to Geoffrey Bone that Bob Feilden was recruited for R&H who subsequently formed the gas turbine manufacturing operations.
In 1934 the company had formed Aveling-Barford from two companies Aveling & Porter of Kent and Barford & Perkins of Peterborough, using a former site of R&H. The company closed its Grantham diesel-engine factory in 1963.
English Electric
In November 1966, R&H was purchased by English Electric. Robert Inskip, 2nd Viscount Caldecote became Chairman of the company. Subsidiaries of R&H included Bergius-Kelvin of Glasgow, Davey, Paxman & Co of Colchester (now owned by MAN Energy Solutions) and Alfred Wiseman Gears in Grantham.
Up to that point, the company had been listed on the London Stock Exchange. This formed Britain's second largest diesel engine group, second to Hawker-Lister. From that moment on it was a subsidiary of a larger company. It became known as the Ruston Turbine Division of English Electric Diesels.
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Following the acquisition by English Electric the production of large Ruston engines was moved to the English Electric Vulcan Foundry factory in Newton-le-Willows. The production of the smaller engine range was moved to Stafford where it became a part of the Dorman Diesel range. Turbine technology was concentrated in Lincoln with Napier turbochargers moving from Liverpool to Lincoln in 1967. In 1969 the Lincoln site became Ruston Gas Turbines. The name was then changed to European Gas Turbines in 1989 following the merger of GEC and Alcatel Alsthom. Later this business was sold to Siemens. The gas turbine business is still in the old Ruston factory in the centre of Lincoln.
GEC and Alstom
R&H was included in the purchase of English Electric by the General Electric Company (GEC) in 1968. By the end of 1969 the Lincoln subsidiary company was known as Ruston Gas Turbines.
The Ruston Paxman diesels division became known as Ruston Diesels, and moved to the former English Electric diesel works. The former Power Jets plant at Whetstone became a research plant for the gas turbine division of GEC. GEC then merged its heavy engineering division with Alsthom of France, becoming part of GEC-Alsthom in 1989, which changed its name to Alstom in 1998, when the Lincoln subsidiary was known as EGT (European Gas Turbines).
Siemens
In 2003, Alstom sold its gas turbine division (in Lincoln and Franche-Comté) to Siemens. The site of the former headquarters at Thorngate House, on the opposite side of the A15, was redeveloped as residential flats.
