Berkefeld Filter Co
of Sardinia House, Kingsway, London, W2. Works at Tonbridge, Kent. (1922 and 1929)
of Town Mills, Tonbridge, Kent. Telephone: Tonbridge 155. (1947)
Berkefeld - a bacterial filter used in 1891, made of earth known as Kieselguhr taken from the name of the mine in Hanover, Germany, from which the earth was found. Ground water at this mine had a clear blue colour suggesting the use of the earth as a filter [1] Berkefeld was the name of owner of the mine from which the material to make the filter was taken.
1903 Catalogue issued
1916 The Berkefeld Filter Co. Ltd. was ordered to be wound under the terms of the Trading with the Enemy Amendment Act 1916[2]
Presumably then carried on as the British Berkefeld Filters company.
1930s At some point in the 1930s the company name was changed to Berkefeld Filters and Water Softeners Ltd.
1937 Makers of water filters and water softeners. Berkefeld Filters and Water Softeners. [3]
1938 Name changed back to Berkefeld Filter Co.
1947 Listed Exhibitor - British Industries Fair. Manufacturers of Stoneware filters and Candles for domestic and laboratory use. Metal Pressure Filters of all sizes for clarification of water for industrial and other uses. Domestic base-exchange Water Softeners. [4]
See also British Berkefeld Filters
See Also
Sources of Information
- ↑ [1] Online Medical Dictionary
- ↑ London Gazette 31 October 1916
- ↑ 1937 The Aeroplane Directory of the Aviation and Allied Industries
- ↑ 1947 British Industries Fair p29