Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 162,349 pages of information and 244,505 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.
1933 David Brown and Sons introduced the Radicon worm gear - the name Radicon refers to the dissipation of heat by Radiation, Conduction and Convection.
Part of David Brown Corporation
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