cog-rail

Updated: May 12, 2025

Blenkinsop of Leeds patented in 1811 a locomotive with a racked or toothed rail. It was supported on four wheels, but they did not drive the engine; its two cylinders were connected to one wheel behind, which was toothed and worked in the cog-rail, and so drove the engine.

James Sinclair Caithness - Lectures on Popular and Scientific Subjects