The History of the Petter Engine

Brothers Ernest and Percy Petter revolutionize England with horizontal, single-acting, high-speed steam engines and the horseless carriage Petter engine.

Horseless carriage
"In those days the law required that every mechanically propelled vehicle should be proceeded by a man walking with a red flag, and, as the horses were quite unaccustomed to 'Horseless Carriages,' they usually took fright when they saw one coming, and this gave us a lot of toruble." - from the memoirs of Percy Petter