The Duplex was a Canadian automobile built by the United Iron Works Company, of Montreal in 1923. [1] The engine was an unconventional 4-cylinder two-stroke engine with two pistons per cylinder, which the makers claimed gave excellent fuel economy. [1]
The Duplex had a 110-inch (2.8 m) wheelbase, and the proposed tourer was priced at CA$1750. [2] The prototype was displayed at the 1923 Montreal Show, but there was very little interest shown, and production never eventuated. [2]
A V engine, sometimes called a Vee engine, is a common configuration for internal combustion engines. It consists of two cylinder banks—usually with the same number of cylinders in each bank—connected to a common crankshaft. These cylinder banks are arranged at an angle to each other, so that the banks form a "V" shape when viewed from the front of the engine.
A flat engine is a piston engine where the cylinders are located on either side of a central crankshaft. Flat engines are also known as horizontally opposed engines, however this is distinct from the less common opposed-piston engine design, whereby each cylinder has two pistons sharing a central combustion chamber.
The tax horsepower or taxable horsepower was an early system by which taxation rates for automobiles were reckoned in some European countries such as Britain, Belgium, Germany, France and Italy; some US states like Illinois charged license plate purchase and renewal fees for passenger automobiles based on taxable horsepower. The tax horsepower rating was computed not from actual engine power but by a mathematical formula based on cylinder dimensions. At the beginning of the twentieth century, tax power was reasonably close to real power; as the internal combustion engine developed, real power became larger than nominal taxable power by a factor of ten or more.
The Saxon Motor Car Company was located in Detroit, Michigan, from 1914 to 1922. In 1917, 28,000 cars were made, making it the seventh largest car maker in the United States.
Louis-Joseph Chevrolet was a Swiss-American race car driver, mechanic and entrepreneur who co-founded the Chevrolet Motor Car Company in 1911.
The Abadal was a Spanish car manufactured between 1912 and 1923, named after Francisco Abadal. Considered a fast luxury car, it was closely patterned on the Hispano-Suiza and offered in two models. One had a 3104 cc four-cylinder engine while the other had a 4521 cc six-cylinder engine.
The Alcyon was a French bicycle, automobile and motorcycle manufacturer between 1903 and 1954.
The Vickers Viking was a British single-engine amphibious aircraft designed for military use shortly after World War I. Later versions of the aircraft were known as the Vickers Vulture and Vickers Vanellus.
The Star was an America automobile marque that was assembled by the Durant Motors Company between 1922 and 1928. Also known as the Star Car, Star was envisioned as a competitor against the Ford Model T and Chevrolet. In the United Kingdom, it was sold as the Rugby, to avoid confusion with the British marque.
The Stutz Motor Car Company was an American producer of high-end sports and luxury cars based in Indianapolis, Indiana. Production began in 1911 and ended in 1935.
The National Motor Vehicle Company was an American manufacturer of automobiles in Indianapolis, Indiana, between 1900 and 1924. One of its presidents, Arthur C. Newby, was also one of the investors who created the Indianapolis Motor Speedway.
Established in 1901, Belsize Motors was based in Clayton, Manchester, England. The company was founded by Marshall & Company and took its name from their Belsize works, where they had built bicycles.
Air-cooled engines rely on the circulation of air directly over heat dissipation fins or hot areas of the engine to cool them in order to keep the engine within operating temperatures. In all combustion engines, a great percentage of the heat generated escapes through the exhaust, not through the metal fins of an air-cooled engine (12%). About 8% of the heat energy is transferred to the oil, which although primarily meant for lubrication, also plays a role in heat dissipation via a cooler. Air-cooled engines are used generally in applications which would not suit liquid cooling, as such modern air-cooled engines are used in motorcycles, general aviation aircraft, lawn mowers, generators, outboard motors, pump sets, saw benches and auxiliary power units.
The Calthorpe Motor Company based in Bordesley Green, Birmingham, England made a range of cars, motorcycles and bicycles from 1904 to 1932.
Hansa-Automobil Gesellschaft m.b.H was a German car brand established in 1905, which in 1914 was merged with Norddeutsche Automobil und Motoren AG (NAMAG) into Hansa-Lloyd-Werke A.G.. From 1929 to 1931 it was taken over by the Borgward group. Hansa was based in the Bremen suburb of Hastedt.
The Valveless was an English automobile manufactured, after lengthy development, from 1908 until 1915 in Huddersfield, Yorkshire. The successor to the Ralph Lucas Valveless, the car marked the entry of the David Brown & Sons group into the manufacture of motors. Its engine was a 20 or 25 hp duplex two-stroke model which was advertised as having "only six working parts"; these included two pistons, two connecting rods, and two crankshafts, which were geared together and counter-rotated. This is a type of engine configuration known as a split single since it is effectively a single cylinder split into two.
The Paterson was a Brass Era/Vintage car built in Flint, Michigan from 1909 until 1923.
The Glide automobile was an American automobile manufactured by the Bartholomew Company in Peoria Heights, Illinois beginning in 1902. Founded by John B. Bartholomew, the company continued to produce automobiles until 1920, when the company began manufacturing trucks for the Avery Company, of which Bartholomew was also president.
The Jackson Automobile Company was an American Brass Era automobile manufacturer located in and named for Jackson, Michigan. The company produced the Jackson from 1903 to 1923, the 1903 Jaxon steam car and the 1904 Orlo.
The Bignan was a French automobile manufactured between 1918 and 1931 on the north side of central Paris, in Courbevoie. The business was created, and till the mid 1920s-headed up, by Jacques Bignan.