Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 136,369 pages of information and 219,137 images on early companies, their products and the people who designed and built them.
Tortoise Iron Works, Halstead, Essex.
1881 Employing 17 men and 8 boys.
1887 Patented coke breaker for use in large houses: with it a "lad of 14 or 15 years age could break 1 cwt of coke in 20 minutes"; the coke would then be suitable for use in "Tortoise" and other stoves
1913 Exhibited core ovens at the 1st Foundry Trades Exhibition
1938 "Watersette" water heater
1976 M. C. Portway and Son Ltd, of Rosemary Lane, Halstead, advertised radiator foil for reducing heat loss from the back of radiators in houses