Billed as "a motor-car symphony", the American Simplex was an American

automobile A car or automobile is a motor vehicle with Wheel, wheels. Most definitions of ''cars'' say that they run primarily on roads, Car seat, seat one to eight people, have four wheels, and mainly transport private transport#Personal transport, pe ...

manufactured in

Mishawaka, Indiana Mishawaka is a city on the St. Joseph River, in Penn Township, St. Joseph County, in the U.S. state of Indiana. The population was 51,063 as of the 2020 census. Its nickname is "the Princess City". Mishawaka is a principal city of the South ...

, United States, from 1906 to 1915 by the Simplex Motor Car Company; the company shortened its product's name to Amplex in 1910 to avoid confusion with the better-known, New York-based Simplex car, made by the Simplex Automobile Company. This change also coincided with a reorganization of the company. Originally the company manufactured a

two-stroke A two-stroke (or two-stroke cycle) engine is a type of internal combustion engine that completes a Thermodynamic power cycle, power cycle with two strokes (up and down movements) of the piston during one power cycle, this power cycle being comple ...

four-cylinder The engine configuration describes the fundamental operating principles by which internal combustion engines are categorized. Piston engines are often categorized by their cylinder layout, valves and camshafts. Wankel engines are often categorize ...

50 hp model, later upsized to 6.8 liters and still rated at 50 hp. In 1910, three open-roof models and two enclosed models were offered, costing up to $5,400; the newly introduced 30/50 hp Toy Tonneau, a long, sleek four-door touring car, sold for $4,300. The Amplex's most distinctive feature was its valveless motor, which the company claimed would offer more continuous pulling power and greater reliability. The 1910 models also offered self-starting, a feature that would not be available from major competitors, such as Cadillac, for another year or two.Floyd Clymer, Historical Motor Scrapbook Number Four, (1952), p.80 They were expensive cars - large, luxurious and handsomely designed, a limousine being offered at as much as $5,600. Yet the firm kept using the two-stroke engine after it had become obsolete; a four-stroke was offered unsuccessfully in 1913. Gillette Motor Co took over the Amplex manufacturing facilities in 1916, but refused to manufacture conventional engine-valving, persisting with a rotary

sleeve valve The sleeve valve is a type of valve mechanism for piston engines, distinct from the usual poppet valve. Sleeve valve engines saw use in a number of pre-World War II luxury cars and in the United States in the Willys-Knight car and light truck. ...

engine.

References

Brass Era vehicles Vehicles introduced in 1906 Motor vehicle manufacturers based in Indiana Defunct motor vehicle manufacturers of the United States Defunct companies based in Indiana Vehicle manufacturing companies established in 1906 Vehicle manufacturing companies disestablished in 1916 1900s cars 1910s cars 1916 disestablishments in Indiana 1906 establishments in Indiana {{Brass-auto-stub

See also

References