Knox

US, 1900 – 1915

Knox Automobile Co, Springfield, Mass.

The Knox cars were known as the Knox Waterless, or more familiarly as the Knox Old Porcupine, from the fact that air-cooling was by means of 2in pins screwed into the cylinder jackets instead of the more common fins. The first Knox car was a 3-wheeler with a rear-mounted 4hp single-cylinder engine, and epicyclic transmission. This Knox car was made until 1903, but the first Knox 4-wheeler appeared in 1901, and had long springs extending from front to rear axle. Single chain drive was used on Knox cars until 1905, when double chains were introduced from the larger Knox cars, these being replaced by shaft drive in 1907. In 1906 a Knox car came through the Glidden Tour without losing a single point.

Water-cooling was optional on Knox cars from 1908, and the later Knox cars though luxurious and expensive, had lost the individuality of Old Porcupine. Large 4- and 6-cylinder Knox cars were made, with prices ranging up to $6.400 for the 1915 Knox 66hp 6-cylinder limousine. Harry A. Knox, the founder, had left the Knox company in 1904 to make Atlas and Atlas-Knight cars, also in Springfield.

Source: Georgano, encyclopedia of motorcar; GNG

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