Certus (automobile)
Certus may refer to: * Certus Gearless Company, a British automotive company * Pegas Certus, a Czech paraglider model * Cogswell & Harrison Certus, a British hunting and target magazine rifle family {{Disambiguation ...
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Certus Gearless Company
Certus Gearless Company Ltd. was a British manufacturer of automobiles. History The company was founded in London in 1907. The brand name was Certus. Only a few units were produced, and production ended in 1908. Models The smaller model used a two-cylinder engine. A larger model was propelled by a 4-cylinder engine from Aster with a displacement of 3000 cm³. The distinguishing feature of both models was the use of a friction drive A friction drive or friction engine is a type of transmission that utilises two wheels in the transmission to transfer power from the engine to the driving wheels. The system is naturally a continuously variable transmission; by moving the two .... References * Harald Linz, Halwart Schrader: ''Die Internationale Automobil-Enzyklopädie.'' United Soft Media Verlag, München 2008, . * George N. Georgano: ''The Beaulieu Encyclopedia of the Automobile.'' Volume 1: ''A–F.'' Fitzroy Dearborn Publishers, Chicago 2001, . Defunct motor vehicl ...
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