Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 148,100 pages of information and 233,633 images on early companies, their products and the people who designed and built them.
1891 British Patent 21,989, issued 21st November 1891, (and subsequent Belgian, French, German and US patents) for improvements to pneumatic tyres, issued to Sheldon Harold Stubbs of Longsight
1895 Listed as Stubbs’ Patent Co in Slater’s Manchester & Salford Directory Part 2, sharing No. 5 New Wakefield Street with several other businesses
1897 Photographs show that Stubbs’ business premises in New Wakefield Street were by no means ostentatious. Part of a window displays a sign which appears to refer to Stubbs’ 'Patent Automatic Steam Ejectors and Steam Traps'. The sliding gate, shared with B. J. Duggan announces The Stubbs Patent Coy. 
1903 Listed as Sheldon H Stubbs, Engineer, in Slater’s Directory of Manchester & Salford, Part 1, at 3b New Wakefield Street. It is probable that he had moved to the more impressive premises next door (seen in one of the 1897 photographs  with the Begg & Co sign, Begg’s address being No. 3a). Stubbs’ residence at this time was given as 6 St Bees Street, Moss Side.