Thomas Hackworth: Dart
From Graces Guide
Note: This is a sub-section of Thomas Hackworth and Hackworth and Downing
1839/40. Railway locomotive built by Timothy Hackworth at Shildon (at the Soho Works[1]), for working passenger traffic[2] on the Stockton and Darlington Railway.
Fire Box engine with 2 inside cylinders, each with 12 inch diameter and 18 in stroke.
It had four driving wheels, each 4 ft 6 in diameter.
It is worked at a boiler pressure of 60 lb. per square inch.
It has two pumps, worked from cross-heads or motions, one crank axle, and one plain axle.
The tender has four wheels, each 2ft. 6in. diameter, and a wooden frame, with a small iron tank on the top.[3]
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