Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 143,344 pages of information and 230,027 images on early companies, their products and the people who designed and built them.
1911 Public company formed. Presumably British Chuck and Piston Ring Co
1916 The works occupied about 2 acres of which about half was workshops; about 170 people were employed, a third of whom were staff and skilled workers including a chemist and an assistant chemist; using machinery designed by W A Oubridge (managing director).
1919 Name later changed to British Piston Ring Co