Individual results Click to enlarge Object Name: motorcycle invalid carriage Title: Tippen Creator: FRANK TIPPEN & SONS Date: 1948 Material: Credit Line: Object Number: RT.1967.149 Institution: Coventry Transport Museum Description: Reg no: HWK 78. This is a three wheeled single seat carriage with a 147cc Villiers engine. Originally hand powered, this type of carriage was converted by Frank Tippen & Sons into a motorised 'Chair'. Tippen was one of the earlist motiorised invalid carridges makers and went on to make the Delta a better known invalid car. Search the collections ×