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Sangamo Weston of Enfield, Middlesex
1936 The British Sangamo Co acquired the Weston Electrical Instrument Co. of Surbiton. This company was the United Kingdom subsidiary of the "Weston Electrical Instrument Corporation" of Newark, New Jersey, USA, a company founded by Dr. Weston which was recognized as one of the world's leading manufacturers of electrical measuring and associated equipment.
1937 Sangamo Weston expanded by acquisition of companies manufacturing electrical instruments and control systems. Supplied a range of electrical Weston aircraft thermometers, which have the advantage of requiring only a flexible wire connection between the instrument and the point at which the temperature is to be measured. Two types supplied - a thermocouple type for use with aeroengines and a resistance bulb type for measuring lower temperatures. A thermometer selector switch especially designed for use with either type was also available to connect several thermometers to a single indicator.
1938 Improvements in or relating to electrical measuring instruments.
1939 See Aircraft Industry Suppliers
1974 Introduced a high-speed, three dimensional, automatic gauging system and produce a printed record.