Llewellyn Birchall Atkinson
1887 Patent No. 12,676 Walter Thomas Goolden and Llewellyn B. Atkinson of London: Dynamo-electric machine. This relates to machines sealed against moisture and gas ingress. Patented in the USA in 1891 (No. 403,072)[1]
1894 Description of the Goolden-Atkinson Rotary Bar Coal Cutter, 'the result of long and careful development by Messrs. Llewellyn and Claude Atkinson, the staff of Messrs. Easton, Anderson and Goolden, and the Electrical Coal Cutting Corporation [2]