Grace's Guide To British Industrial History

Registered UK Charity (No. 115342)

Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 149,755 pages of information and 235,473 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.

1784 Patents

From Graces Guide

James Watt rotative engine - parallel motions - portable engine and steam carriage - working hammers, etc. - improved hand gear - improved method of working the valves.

Robert Cameron, London — helical engine, improvement on Newcomen's


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Sources of Information