Grace's Guide

British Industrial History

Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 148,535 pages of information and 233,960 images on early companies, their products and the people who designed and built them.


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Machine designed for simultaneous charging and discharging of gas-retorts designed by Walter Fiddes and Mr Aldridge.

1902-7 Several patents by Walter William Fiddes and James George Willcox Aldridge on apparatus for discharging coke and charging coal into gas retorts.

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