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.
of Ealing Works, Sheffield.
Forgemasters and manufacturers of micrometers.
1869 Company founded by Ambrose Shardlow as a general engineer and machinist at Bridge Street, Attercliffe, Sheffield
1900 Specialising in crank-shafts
1907 Making pneumatic hammers (see illustration)
1911 30 bhp gas engine. 
1940 Employed 450 persons producing 200,000 crankshafts annually.
1961 Engineers and drop stampers and manufacturers of crankshafts and micrometers. 1,800 employees. 
1963 Taken over by GKN.
Ambrose Shardlow by David Price