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George Turton, Platts and Co of Savile Street, Sheffield
1882 Company established by George Turton.
1888 Turton's Improved Railway Buffer. (George Turton of the Patent Buffer, Steel and File Works at Sheffield) 
1891 William Platts joined the firm.
1894 Partnership dissolved, company continued by William Platts.
1896 Reedhams patent ventilator - The Victor Air Extractor. 
1901 Railway Buffer Manufacturers. 
1910 Private company. Purchased by George H. Cowen.
1914 Manufacturers of railway buffers, springs, drawgear etc. Specialities: railway buffers for locos, carriages and wagons on Platts-Turton patent and Matthews' patent, ordinary buffers of all kinds, spiral and volute springs of all sizes up to fifty tons resistance, Platts-Turton patent ribbed section volute springs, Cowen's patent equal temper spiral springs, Rees and Moreton's patent flexible drawgear, Stuart's patent lock-fast rail key, Eros ventilators for railway carriages. 
1920 Company made public.
1937 Manufacturers of aero engine crank cases, cylinder liners and stampings. 
1961 Manufacturers of railway and dock buffers, rail fastenings, drop stampings and heavy coil springs.