High Quality Content by WIKIPEDIA articles! Ruston & Hornsby, later known as Ruston, was an industrial equipment manufacturer in Lincoln, England, the company`s history going back to 1840. The company is best known as a manufacturer of narrow and standard gauge diesel locomotives and also of steam shovels. Other products included cars, steam locomotives and a range of internal combustion engines, and later gas turbines. The company is now part of the Siemens group of Germany.