Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 148,485 pages of information and 233,924 images on early companies, their products and the people who designed and built them.
Martin & Smethurst of Guide Bridge Iron Works, Audenshaw near Manchester
1855 25 HP Patent slip engine installed at Hobart Town Patent Slip. 'The engine bears the names of "Martin and Smethurst, engineers, Guide Bridge, Manchester"' 
1855 Patent: Provisonal Protection No. 415, 26th February 1855 Hamilton Martin and Joseph Smethurst of Guide Bridge Iron Works: Improvements in the construction of fences or casings for shafts, pulleys and other parts of machinery 
1860 Patent 2912 relating to steam engine slide valves issued to Joseph Smethurst