 Simms acquired some of the foreign patent rights to the petrol engine.In 1900 he set up Simms Manufacturing Company Ltd in Bermondsey and moved the business in 1902 to Welbeck Works in Kimberley Road, Kilburn.There they made Simms-Welbeck cars, lorries and marine engines, fire engines, agricultural vehicles, military vehicles and guns, and aeronautical devices until about 1908.