Other products included cars, steam locomotives and a range of internal combustion engines, and later gas turbines.

Ruston purchased 25 acres of the Boultham Hall estate and established the Swanpool Co-operative Society.

After running into financial difficulties the development was sold in 1925 to Swanpool Garden Suburb Ltd, a private company, but only 113 of the planned 2–3000 houses had been constructed and no more were built.

Later he would start the Automotive Products Group (APG) in Leamington Spa in 1920 which made Borg & Beck clutches, Lockheed hydraulic brakes, and Purolator fuel filters.

In September 1944, when the German Wehrmacht OB West headquarters at Saint-Germain-en-Laye (near Paris) were captured, previously commanded by Field Marshal Günther von Kluge (from 2 July 1944), they were found to be powered by Ruston diesel engines.

Ruston & Hornsby was a major producer of small and medium diesel engines for land and marine applications.

It was a pioneer and major developer in the industrial application of small (up to 10,000 kW) heavy duty gas turbines from the 1950s onwards.

The initiation of the production and design of gas turbines was largely due to Bob Feilden[5] CBE (1917–2004) who joined the company in 1946.

These had to be developed due to prolonged electricity blackouts in south-east England in 1961 caused by cascading failure.

Industrial Gas Turbines of note manufactured at the Lincoln plant: Until the late 1960s, it produced Thermax boilers.

The boiler business was sold for £1.75m to Cochrane & Co of Annan, Dumfries and Galloway in October 1968, that was bought by John Thompson of Wolverhampton four months later.

In 1957, it was the first company to fit a main Royal Navy ship (HMS Cumberland) with a (experimental) gas turbine.

The company began this technology in Cortemaggiore, Emilia-Romagna in 1956 at the Agip (Azienda Generale Italiana Petroli) oil refinery.

[7] By the late 1960s, Ruston & Hornsby CHP units were installed in Australia, Germany, the US, South America, and the Middle East.

The large Singer factory in Clydebank, which employed 11,000 people, was notably powered by Rustons turbines.

Whitehall[clarification needed] in London is heated and has its electricity from a CHP unit built in the late 1990s.

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 was due to Geoffrey Bone that Bob Feilden was recruited for R&H who subsequently formed the gas turbine manufacturing operations.

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.

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).

When owned by GEC in the late 1960s and early 1970s, many (if not the vast majority) of Lincoln engineering firms did not survive difficult financial conditions.

This included Clayton Dewandre, (that made vacuum and air-pressure brake servos and associated equipment for commercial vehicles).

Siemens announced in September 2009 that Gas Turbine packaging operations were to move abroad with the Lincoln site becoming a feeder plant.