Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 166,809 pages of information and 246,602 images on early companies, their products and the people who designed and built them.
Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 147,919 pages of information and 233,587 images on early companies, their products and the people who designed and built them.
A make of rotary dryer for coals, cements, clay, glass sand, etc
1911 Advertised by Electro-Metals Ltd.
1912 Electro-Metals Ltd held the patents for Ruggles Coles machines for drying ores and other substances; the firm had received orders frm various bodies, including repeat orders, for handling cement materials, coal washing, and for drying peat and sewage sludge.[1].
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