Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 140,199 pages of information and 227,382 images on early companies, their products and the people who designed and built them.
Armstrong's Patent Co, of Beverley, maker of shock absorbers
1926 Company founded by F. G. Gordon Armstrong.
1930 Became private company: Armstrong's Patents Co
1961 Manufacturers of "Armstrong" shock absorbers, "Heli-Coil" screw inserts, "Strongarm" door closers and hydraulic remote controls. 4,000 employees. 
1963 Motor Show exhibitor. Shock absorbers.