Working drawing of Thompson's engine

Working drawing of Thompson's engine, said to show the "Belted Will" as built, or rebuilt, for James Thompson of Kirkhouse, Carlisle, 1839. The engine is generally of the Killingworth type; the boiler is fitted with a smokebox and is presumably multitubular. Carmichael's Gab Valve gear is fitted. Description from A Century of Locomotive Building by Robert Stephenson & Co 1823-1923, J G H Warren, p 35. Drawing reference - 124.