Darlington Works: No. 1068

Built in 1875 at Darlington Works for the Stockton and Darlington Railway.

No. 1068 is a passenger engine built at the North-road Engine Works in August, 1875.

It has two inside cylinders, each 17in. diameter, and a 26in. stroke. Its boiler is 11ft. long by 4ft. 2in . diameter, made of Low Moor plate 3/8ths in. thick, double riveted, with zigzag rows, the rivet holes being all drilled. It is fuurnished with 158 Low Moor iron tubes, each 2in. diameter, giving a total heating surface, including the fire-hox, of 1000ft. It has two plain sides, worked by eccentrics aud expansion links, is fitted with Bouch's screw-reversing gear, and has four driving wheels coupled, each 6ft. diameter, one pair of leading wheels, each 4ft. diameter, and a total wheel-base of 16ft. 6in. The crank axle is made of Bolton steel. The engine is fitted with Bouch's steam retarder and a hand-screw brake on the trailing wheels. The boiler pressure is 140 lb. per square inch. This engine can attain a speed of sixty mlles per hour, with about fourteen carriages attached. Its weight in working order is 31 tons. The tender is the same as No. 1270.

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