Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 133,995 pages of information and 212,758 images on early companies, their products and the people who designed and built them.
of Belfast, maker of the Chambers motorcar
1906 British made cars of 8 h.p. two-cylinder and 16 h.p. four-cylinder types. 
1908 Successor to Chambers and Co
The motorcar manufacturing company, Chambers Motors, then moved in from Cuba Street in east Belfast, where they had outgrown their existing factory. Chambers made cars of the highest quality but with certain eccentricities. Their gearbox, which was located in the rear axle, produced three forward speeds and reverse from an otherwise conventional epicyclic system using sun, planet and annulus gears.
1913-1917 For a list of the models and prices of Cars see the 1917 Red Book
1913-1917 For a list of the models and prices of Petrol Motor Commercial Vehicles see the 1917 Red Book
WWI During the first world war they built ambulances for the Ulster division but could not get government contracts due to the bore of their engines being too narrow. They also made shell cases and hand grenade fuses during the war.
After the war, when supplies were difficult to obtain, they bought in many of their old cars, which had become outdated in bodywork styles but retained useful engines, and refurbished them as commercial vehicles.
992 Manufactured motor cars and chassis, patent wiring machines, magneto starters.