Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 148,548 pages of information and 233,968 images on early companies, their products and the people who designed and built them.
Blakey Emmott & Co of Square Road, Halifax
Electrical and telephone engineers.
1891 Released a catalogue of their electric light machinery. 
Made circular calculating machines patented by Joseph Edmondson of Halifax