Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 133,789 pages of information and 211,900 images on early companies, their products and the people who designed and built them.
of Moss Iron Works, Heywood, Lancs.
1926 Company formed for developing the sales of machinery for the activated sludge process, for the mechanical aeration of sewage, developed by Matthew William Mills, and of other sewage purification machinery.
1937 Manufacturers of sewage disposal plant. "Simplex" Sewage Purification Plant.