Steam Locos of a Leisurely Era
1874 – Johnson 0-6-0T
This was S.W.Johnson’s first design after coming to the Midland Railway in 1873, 25 of these engines were built initially by Neilson & Co in 1874-5, and another fifteen by the Vulcan Foundry in 1875-6. Many more followed from Derby between 1878 and 1893, and still further batches from outside builders until 1899, by which time the class totalled 280 engines. Previous to 1907 their numbers were somewhat scattered, but in that year they became Nos. 1620-1899. A further sixty engines of a slightly larger version came from the Vulcan Foundry from 1899 to 1902, numbered 1900-59. Many of these were fitted with condensing apparatus for working over the ‘widened’ lines of the Metropolitan Railway, and these consequently spent a lot pf their working lives in the London area. The MR had evidently by 1902 a sufficient stock of shunting tank engines, and no more were built by that company, but the design in a slightly improved form reappeared again under LMS auspices as one of their standard types, of which no less than 415 were built between 1924 and 1931, as well as a further seven for the Somerset and Dorset Railway, which engines later became merged into LMS stock.
During the 1930s Nos. 1900-59 were renumbered 7200-59. All of the Midland engines at first carried Johnson’s distinctive boiler with the Salter safety valve in the dome, but most of the later ones to survive, and all of the 1900-59 batch, gradually acquired Belpaire type boilers. The earlier engines had only half section cabs, which some retained even after rebuilding with Belpaire boilers. All lasted until the early 1920s, when they began to be taken out of service, but nevertheless 95 of the original series, and all of the ‘1900’ Class, survived to be taken into BR stock and to have their numbers increased by 40000. No. 41661 built on 1878, was in service until 1959, when there remained also a few others of the pre-1900 series, including No. 41835, still with its Johnson boiler. Whilst about half of the 47200-59 lot were still running, as were nearly all of the LMS built engines, whose numbers range from 47200-47681. Nos. 7260-7309 were originally 7100-49 and 7317-7681 first came out as 16400-16764, whilst 7210-16 had been S&DJR 19-25.
Original series – Driving wheels – 4’ 7”, Cylinders – 17”x 24”, Pressure – 140 lb., Tractive effort – 15007 lb., Weight – 39 tons 11 cwt., BR Classification – 1F
47200-59 – Driving wheels – 4’ 7”, Cylinders – 18”x 26”, Pressure – 160 lb., Tractive effort – 20835 lb., Weight – 48 tons 15 cwt., BR Classification – 3F