Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 148,478 pages of information and 233,901 images on early companies, their products and the people who designed and built them.
Makers of electric motors 
1973 The companies were brought together under Brook Crompton Parkinson Motors, as the management company.
1979 The existing subsidiary of Hawker Siddeley, Jowett Engineering, was renamed Hawker Siddeley Electric Motors.
1990 Name changed to Brook Crompton
1991-3 BTR acquired other internationally-known names in electromechanical drives and controls including gear manufacturers Hansen Transmissions, Prager and Stephan Werke.
1996 The name of Brook Crompton International was changed to Brook Hansen International; its business was the export of electric motors and control gear.
1999 Merger of BTR and Siebe; Brook Hansen was split into motors companies and gear companies. The gear companies were aligned with the Rexnord group and the electric motors companies became known as Invensys Brook Crompton.
Now part of the Lindeteves-Jacoberg Group; once more known as Brook Crompton.