Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 146,709 pages of information and 232,164 images on early companies, their products and the people who designed and built them.
of 47 The Vale, Acton, London, W3
1936 T. E. Beacham started the Integral Company, which made many of the hydraulic pressure pumps used on British war aircraft.
1937 Light engineering. 
1939 See Aircraft Industry Suppliers
by 1952 Integral Ltd was a subsidiary of H. M. Hobson