Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 148,450 pages of information and 233,880 images on early companies, their products and the people who designed and built them.
of Wakefield, Yorkshire.
1897 Company formed.
1922 Private company formed.
Apparently the Jeffrey Manufacturing Co of Columbus, Ohio acquired The Diamond Coal Cutter Company Ltd of Wakefield in 1926, and renamed it British Jeffrey-Diamond Limited
1961 Manufacturers of pulverisers, crushers and conveyors and coal face mining machinery. 1,300 employees.