British Electric Transformer Co
British Electric Transformer Co of Hayes, Middlesex.
1903 Public company. The company was registered on 10 February, to take over and extend the business of the British Electric Transformer Manufacturing Co[1]
1912 Having earlier acquired an interest in Berry Construction Co Ltd which owned the Tricity patents[2], acquired the whole company on 1st April 1912[3]
1912 Demand for Tricity cookers had doubled since the previous 6 month period[4].
1912 Share issue. The company's main product was the Berry transformer invented by Mr A. F. Berry who was technical adviser to the company and a member of the board of directors; Mr Berry had also invented the Tricity cooker[5].
1914 Manufacturing electrical engineers and contractors. Specialities: Berry transformers, series gear, Tricity cookers and utensils. [6]
1926 On 23rd December Mr J. Roothaan possible director of the company?? passed away.[7]
1929 Central Electricity Board placed contracts for 66kV transformers for the South East of England with Hackbridge Electric Construction Co and British Electric Transformer Co[8]. British Electric Transformer also received contracts for 132 kV transformers for Central England and North-West England.
1932 Acquired by Crompton Parkinson.
1961 Electrical engineers and manufacturers of electrical equipment. [9]
By 2002 was part of Hawker Siddeley Marine Ltd when it was liquidated[10]