Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 134,030 pages of information and 213,093 images on early companies, their products and the people who designed and built them.
1973 Bio Note 
P. D. Swales, BSc PhD Member, graduated in Mechanical Engineering at the University of Leeds in 1955.
In 1964, he was appointed a lecturer in Mechanical Engineering at the University of Leeds and gained a PhD in 1969 for work on the lubrication of rubber. Apart from hydrofoils, his other current research is concerned with artificial heart valves. He has also spent some time as a visiting assistant professor at Carnegie Mellon University, Pittsburgh.