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Willans and Robinson, Ltd., of Victoria Works, Rugby; and (briefly) of Queensferry, near Chester.
1884 A single-acting central valve engine was developed specifically to drive dynamos, which ultimately became famous.
1888 became a private limited liability company
1888 Took limited status with £200,000 capital. Described as mechanical and electrical engineers, boilermakers, iron and steel founders, launch and ship builders. 
1888 H. Farmer, Thames Ditton was the Secretary. 
1893 Reconstituted as a public company.
1894 The company was registered on 8 March, to take over the business of engine builders of the private limited company of the same name. 
1895 Three engines for electricity generation for the Herrison Mental Hospital, Charminster.
1897 Moved to Willans Works, Rugby to satisfy the need for expansion and better railway facilities.
1900 Engine displayed at Paris Exhibition. Normal rating 2400 HP at 200 rpm, 3000 HP maximum.
1901 Comprehensive article in the American Machinist describing aspects of production 
c.1900 A modern boiler works, the Ferry Works, were built on the banks of the Dee at Queensferry near Chester. This was equipped to produce water tube boilers under licence from J. and A. Niclausse of France. Facilities included plant for producing vanadium steel. Described at some length in 'The Engineer'. See 1904 illustrations .
1901-1916 of Victoria Works, Rugby. Annual reports held at Coventry Archives
1902 Engine for electricity generation for Avonbank power station.
1902 Made engines for the Duryea car
By 1902 the company had facilities in Rugby and Queensferry
1904 Engine for electricity generation for the Herrison Mental Hospital, Charminster.
1904 Started production of high-power diesel engines 
1908 After unsuccessful attempts to dispose of the Queensferry Works, it was decided that they should be closed because they did not make enough profit
1911 335 bhp Diesel engine. 
1914 Installed several large steam turbines for various municipal corporations; increased orders for diesel engines; licensed the Muller-Jones condensing plant
1916 Part of Dick, Kerr and Co.
1919 They became part of the English Electric Co.
Became the steam turbine department of English Electric.
1968 English Electric became part of GEC, initially trading as English Electric-AEI.
1990s Became GEC-Alstom. Inevitably capacity at Rugby was reduced in favour of plants in France.
2014 Willans Works, Rugby, continued to undertake land and marine turbine work as part of ALSTOM Power.
Willans Works, Rugb, is now part of GE Power of the USA.