Found by Eddie McLean in the Glasgow area. Bonnybridge Silica & Fireclay Co Ltd, Bonnybridge. alt Calder Firebrick Works, Airdrie, Lanarkshire. alt Chapelhall Works, Lanarkshire. Hepworth Ceramic Holdings plc (GR-Stein Refractories Ltd. parent co) bought the Bonnybridge Silica & Fireclay Co. Ltd in 1972, closed Bonnybridge works in 1973 and closed Chapelhall in 1980. Therefore…
Bonnybridge Silica and Fireclay Company (Bonnybridge Refractories) were always trying to improve the refractory brick manufacturing process. Mr Walter Smith of Braidwood patented a process involving the carbonising of clay. This involved changing the chemical makeup of the fire clay by heating it to change the iron into magnetite which could then be removed via magnets. A company was set up in 1928 to exploit this process but the process was never successful and with dwindling funds the company was dissolved in 1933.
24/11/1928 – Dundee Courier – New Scottish companies. Braidwood Refractories, Ltd., Rraidwood, Lanarkshire. Private company, carry the business of makers of silica and fireclay goods and dealers in refractory and plastic materials products. Capital, £13.000 in shares.
Below – 08/02/1929 – Carluke and Lanark Gazette – Walter Smith died at Brickworks Cottage, Braidwood aged 66. He was a Yorkshire man. He came to Scotland around 1919. He carried out research and experiments in order to create a high quality refractory product. He carried out research at St Rollox, Glasgow. He also converted part of the Nellfield brickworks and built a small kiln there.
06/10/1933 – Carluke and Lanark Gazette – Braidwood Refractories, Ltd – Notice is hereby given that a meeting of the shareholders has been called to consider and, if approved of, pass a resolution for the voluntary winding up of the company……