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or CAV of Warple Way, Acton Vale, London were electrical engineers.
CAV made accumulators, carriage lamps and switchboards, pioneering the lead-acid battery, and also sold CAV-Ruthardt magnetos for motorcycles and cars. Joseph Lucas Ltd. bought the company in 1926, after which the company made components for the automotive industry, and for aircraft during World War Two. The company had merged with Bosch in 1931, but that arrangement ceased when war was declared - oddly enough, Lucas continued to market Bosch products. Bosch finally bought back the company in 1954. The company's name changed to Lucas CAV in 1978, subsequently closed, and Bosch built a plant in Cardiff in 1991.
Also sold CAV-Ruthardt magnetos for motorcycles and cars.
1913 April. Advert for 'Motor Car Lighting'.
1916 C. A. Vandervell Ltd. was formed in 1916 with a share capital of £350,000
to take over a business carried on by Mr. C. A. Vandervell at Acton. The
products of the company included batteries, magnetos, dynamos, starters,
lamps, horns and other motor goods. Mr. Vandervell was one of the pioneers
in the manufacture of batteries and dynamos for motor vehicles, having
started manufacture of these items well before the time when Lucas first
began the manufacture of electrical goods, and he had made particular progress
in the development of electrical equipment for the heavier commercial types
1920 Issued a catalogue of magnetos. 
1920 Dynamo for car lighting. 
1920 October. Exhibited at the Commercial Motor Exhibition at Olympia with
electrical lighting equipment for commercial vehicles. 
By 1922, the supply of electrical equipment for commercial vehicles was
largely in the hands of C. A. Vandervell Ltd.
1944 Advert for fuel injection equipment.
1961 Manufacturers of bushings and bearings for cars, aircraft and ships.
1963 Motor Show exhibitor. Injection equipment and other.