1912 – Dreadnought Wheel and “Big Lizzie” – Frank Bottrill (Australian)

1912 – Dreadnought Wheel and "Big Lizzie" – Frank Bottrill A dreadnaught wheel is a wheel with articulated rails attached at the rim to provide a firm footing for the wheel to roll over, they have also been known as endless railway wheels when fitted to road locomotives, and were commonly fitted to steam traction …

1846 – Walking Wheel – James Boydell (British)

1846 – Walking Wheel by James Boydell A dreadnaught wheel is a wheel with articulated rails attached at the rim to provide a firm footing for the wheel to roll over, they have also been known as endless railway wheels when fitted to road locomotives, and were commonly fitted to steam traction engines. Bottrill's "Big …