| Lyons-Atlas Company | |
| Industry: | Automotive |
| Predecessor: | Atlas Engine Works |
| Founder: | James W. Lyons, William P. Lyons, George W. Lyons |
| Fate: | Ended Car production |
| Hq Location City: | Indianapolis,_Indiana |
| Hq Location Country: | United States |
| Key People: | Harry A. Knox, James W. Lyons, William P. Lyons, George W. Lyons |
| Products: | Gasoline Engines, Automobiles |
The Lyons-Knight was an American automobile manufactured from 1913 until 1915 in Indianapolis, Indiana.
Three brothers, James W., William P. and George W. Lyons purchased the Atlas Engine Works and reorganized as the Lyons-Atlas Company. The previous Atlas Company manufactured two-stroke gasoline and diesel engines, and had developed a line of gasoline engines using the Knight sleeve-valve design.
The Lyons-Knight featured Knight sleeve-valve engines and worm-drive rear axles, that were designed by Harry A. Knox who had previously worked at the Atlas-Knight Automobile Company in Springfield, Massachusetts.
Beginning in 1913, the Lyons-Knight Model K-4 offered a four-cylinder engine that produced 50-hp and was installed in a choice of five or seven passenger touring car, sedan, or berline bodies, using a 130-inch wheelbase. Prices started at $2,900 for the five passenger touring sedan while the berline sedan was $4,300.
For 1914 a Model K-6, six-cylinder engine was offered with the same wheelbase in either a five or seven passenger touring sedan for $3,200 . In 1915 only the K-4 model was offered but with the addition of limousine and roadster bodies. Automobile manufacturing ended in 1915 soon after Harry Knox resigned from the company.Lyons-Atlas Company continued building engines and manufactured Standard marine engines for Britain during World War I.