Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 148,109 pages of information and 233,634 images on early companies, their products and the people who designed and built them.
of Alphington Road, Exeter
1921 Advertising as agents for 3 HP 'Glasgow' sleeve valve engines 
Standard machines ranged from low-cost lathes to precision grinding machines. Also special-purpose machine tools and tooling.
1937 Lathe and tool makers. "Exe" Lathes. "Nulok" Toolholders for Lathes.
Photos of lathes and surface grinder here.