Midland Railway Paget locomotive

Paget
The only known photograph of the Paget locomotive is this official portrait.
Type and origin Power type Steam Designer Cecil Walter Paget Builder Midland Railway Derby Works Build date 1908
Specifications Configuration: ​  • Whyte 2-6-2  • UIC 1′C1′ n8 Leading dia. 3 ft 3+1⁄2 in (1,003 mm) Driver dia. 5 ft 4 in (1,626 mm) Trailing dia. 3 ft 3+1⁄2 in (1,003 mm) Wheelbase Coupled: 17 ft 4 in (5.28 m) Locomotive: 31 ft 4 in (9.55 m) Adhesive weight 59 long tons 6 cwt (132,800 lb or 60.3 t) 59 long tons 6 hundredweight (60.3 t; 66.4 short tons) Loco weight 74 long tons 10 cwt (166,900 lb or 75.7 t) 74 long tons 10 hundredweight (75.7 t; 83.4 short tons) Boiler pressure 180 lbf/in2 (1.24 MPa) Cylinders 8 single-acting Cylinder size 18 in × 12 in (457 mm × 305 mm)
Performance figures Tractive effort 18,590 lbf (82.69 kN)
Career Operators Midland Railway Numbers 2299 Locale United Kingdom Scrapped 1918

The Midland Railway's Paget locomotive, No. 2299, was an experimental steam locomotive constructed at its Derby Works in 1908 to the design of the General Superintendent Cecil Paget (though Richard Deeley was Locomotive Superintendent at the time). As the Midland shrouded the locomotive in secrecy, there is only one known photograph, which was not released until after The Grouping of 1923.

Overview

The locomotive had a total of eight uniflow cylinders arranged in two groups of four placed between the 1st and 2nd and 2nd and 3rd driving axles, with rotary steam distribution valves placed over each; a bronze sleeve in the valve body was rotated to control cutoff. Two were connected to the forward pair of the six driving wheels. Four were connected, two each side to the centre pair, with the final two behind the last pair. These drove a jackshaft which operated and reversed the valves, and cut off was controlled by rotary sleeves. The boiler was large and had an unusual integral firebox, lined with firebricks. Two-wheel pony trucks were fitted front and rear. It was the first 2-6-2 tender locomotive in Great Britain and would be the only one until the LNER Class V2 of 1936.

Finance

Paget had initially financed it himself, but unfortunately ran out of money, and the railway made up for the difference. There has been a history on the railways of a distrust of new ideas and Paget and Deeley were not on the best of terms. Lowe suggests that there was great hostility to it.

Problems

It had problems with seizing of the phosphor bronze sleeves in the cast iron steam chest, with leakage in the glands and piston rings. In 1912, one of the rotary valves seized while on a test run, the engine blocking the main line for seven hours. As a result, it was put in store at Derby and was broken up in 1918, while Paget was in France commanding the Royal Engineers Railway Operating Division.

References

• Ellis, C. Hamilton (1966). Midland Railway. Ashford, Middlesex: Malaga Books. pp. 131, 133.

Further reading

• Ahrons, E.L. (1966). The British Steam Railway Locomotive. Vol. I, to 1925. Ian Allan. p. 345.
• Clayton, James, (1945) 'The Paget locomotive' in The railway gazette, 2 November 1945 (also reprinted in booklet form)
• Mills, Bob, (2000) 'The Paget locomotive' in BackTrack, vol. 14, no. 1 (January 2000), pp. 21–23