Hallam Sleigh and Cheston
of Bagot Street, Birmingham
1898 Company founded.
1900-1940s Sometime in this period they were makers of sliding seat mechanisms.
1947 Private company.
1951 Widney brand.
1953 Company made public.
1961 Products include windows for omnibuses, railway coaches and motor vehicles. Simplastic glazing process used in vehicle window and windscreen manufacture. 800 employees. 
1963 Motor Show exhibitor. Mechanisms for adjustable seats. 
Sources of Information
- Birmingham’s Industrial Heritage by Ray Shill. Published by Sutton Publishing 2002. ISBN 0-7509-2593-0