Grace's Guide To British Industrial History

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Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 167,694 pages of information and 247,077 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.

Robert Ridley

From Graces Guide

Engineer of Low Wortley, Yorkshire.

1861 Patent to William Firth, of Leeds, Merchant, and Robert Ridley, of Leeds Engineer, in respect of the invention of "improvements in apparatus and machinery for working coal and other mines."[1]

1861 Patent to George Edmund Donisthorpe and William Firth, oi Leeds, Merchants, and Robert Ridley, of Leeds, Engineer, in respect of the invention of "improvements inmachinery and apparatus for working coal and other mines."[2]

See Also

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Sources of Information

  1. ↑ The London Gazette 25 March 1862
  2. ↑ The London Gazette 25 March 1862
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