H. E. C. Compressors and Engines
of Levis Works, Old Station Road, Stechford, Birmingham.
1940s Butterfield Brothers merged with Hewins Engineering Co and concentrated on making H. E. C. Compressors and Engines and motor accessories.
1957 Electric and Petrol Driven Air Compressors, Petrol Engines, Vacuum Pumps, Compressed Air Accessories. Compressors especially for Paint Spraying. Small models for Auxiliary Air Supplies.