Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 138,904 pages of information and 225,312 images on early companies, their products and the people who designed and built them.
Charlesworth, Hall and Co of Richmond Hill Ironworks, Oldham were electrical engineers and engine makers.
1890 Compound tandem engine and dynamo. Illustration and details in 'The Engineer'
1890 Electric searchlight machinery. Illustration and details in 'The Engineer'
1892 Crystal Palace Electrical Exhibition. Oldham dynamo and a search-light projector. 
1894 High-Speed Closed Engine. (Charlesworth and Co).