Dr J. A. Purves was born in Taunton, 1870, and studied engineering at Edinburgh University.
Inspired by a drawing by Leonardo da Vinci, he came up with the Dynasphere – an extraordinary vehicle in which the driver and passenger sat inside a giant wheel.
The Dynasphere was tested at Brooklands Race Track and Brean Sands, near Weston-super-Mare. Patented in 1930, it proved to be unstable, difficult to brake and nearly impossible to steer.
Images: Copyright South West Heritage Trust: A\DZV/1.1, A\DZV/1.10, A\DZV/1.12,A\DZV/1.13