Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 129,286 pages of information and 204,290 images on early companies, their products and the people who designed and built them.
of Lofthouse Gate, Wakefield
of Meadow Lane, Leeds
c1902 Ernest Charles Prudence began building small oil engines and sold as the Prudence Lighting Plant
1910 Company formed at Leeds from the name 'Prudence Electric Lighting And Power Our New Engine'
1912 Pelapone Engine Co was removed from the list of joint stock companies
WWI Company moved to Batley Carr near Dewsbury
1924 Following flood damage the company moved to Wakefield
1927 Generating Set. Exhibit at Armley Mill Museum
1934 Agreement with Ricardo and Co saw the introduction of the D50 engine
1937 Manufacturers of stationary petrol and diesel engines. "Pelapone" Petrol and Diesel Engines. 
1948 The company moved to Slack Lane, Derby, and the name changed to Pelapone Engines
1967 Became subsidiary of Dewhurst and Partner