Steam Locos of a Leisurely Era – 1876 Johnson 2-4-0 Midland Railway

Steam Locos of a Leisurely Era

1876 Johnson 2-4-0

Midland Railway

Illustration: No. 20204, the last of the 7’ 0” engines to run in service, as rebuilt with Belpaire boiler.  It was scrapped in 1941.

 S.W.Johnson’s first main line engine for the Midland Railway came out in 1876.  He seemed undecided at first whether to adopt a leading bogie for express work, as although some thirty 4-4-0 engines appeared, he also built at the same time a number of2-4-0s, and continued this type until 1881, during which period a considerable number were put into service.  From 1992 onwards, however, he concentrated on engines with a leading bogie, and built not only a large number of 4-4-0s, but also his famous bogie single wheelers.

Midland 1070 was the first of the Class 1070 locomotives built under Johnson between 1874 to 1876. This was developed from Kirtley’s 890 class, and had inside frames, 6ft 2in diameter driving wheels and 17in x 24in cylinders. The class as a whole were renumbered 127-56 in order of building in 1907   ahisgett flickr

His 2-4-0s were of four varieties, varying in the size of the driving wheels.  There were ten 6’ 3” engines, which after the 1907 renumbering became Nos.147-56, forty with 6’ 6” wheels, Nos. 157-96, Sixty five 6’ 9”, Nos. 207-71 and twenty seven-footers, Nos. 197-206 and 272-81.  He also rebuilt the later engines of his predecessor Kirtley to conform to his own design, and the classes eventually became almost indistinguishable.  These again consisted of two varieties, Nos.68-126 with 6’ 8½” driving wheels, and 127-46 with 6’ 3” wheels, corresponding generally to the 207 and 147 classes.

From about 1920 onwards a large number of the Johnson engines acquired Belpaire fireboxes with Ramsbottom safety valves in place of the Salter valves in the dome, but this was the only major alteration to the class.  Many remained in their original state and the modification was not applied to any of the rebuilt Kirtley engines.

A few engines disappeared before the grouping, but the majority passed into the hands of the LMS.  About 1934 it was desired to utilise the number group for new engines, and such of the 2-4-0s as still remained in service were placed on the duplicate list by the addition of 20000 to their numbers.  Only about twenty engines were involved, including three of the earlier Kirtleys, all the rest having been scrapped.  Three survived to be taken over by British Railways in 1948, Nos. 20155, 20185 and 20216, and although they were allocated new numbers, Nos. 58020-22, they never carried them.  No. 20155 ran until December 1960.

Driving wheels – 6’ 3”,  Cylinders – 18”x 24”,  Pressure – 140 lb.,  Tractive effort – 12338 lb.,  LMS power Classification – 1

Driving wheels – 6’ 6”,  Cylinders – 18”x 26”,  Pressure – 140 lb.,  Tractive effort – 12770 lb.,  LMS power Classification – 1

Driving wheels – 6’ 9”,  Cylinders – 18”x 26”,*  Pressure – 140 lb.,  Tractive effort – 12376 lb.,  LMS power Classification – 1

Driving wheels – 7’ 0”,  Cylinders – 18”x 26”,  Pressure – 140 lb.,  LMS power Classification – 1

* The rebuilt Kirtley engines had 18”x 24” and a lower tractive effort.

 2-4-0 Warwickshire Railways

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