Joseph & George Armstrong & William Dean locomotives of the GWR

I have added 15 new photos of the GWR 2021 Class
The GWR 2021 Class was a class of 140 0-6-0ST steam locomotives. They were built at the Wolverhampton railway works of the Great Western Railway between 1897 and 1905. 1897 was the very year of George Armstrong's retirement, so it is uncertain if the design should be attributed to him or to his superior at Swindon, William Dean.
originally built as a Saddle Tanks
https://railway-photography.smugmug...trong-2021-SaddlePannier-Tank-class/i-vKTRKxd
In fact the 2021s were simple enlargements of the Armstrong-designed 850 class of 1874. The changes were fundamentally confined to a longer wheelbase to permit fitting of a larger firebox.
The class was built in eight batches:

2021-2030 (Lot D3, 1897)
2031-2040 (Lot F3, 1897–8)
2041-2060 (Lot G3, 1898–9)
2061-2080 (Lot H3, 1899–1900)
2081-2100 (Lot J3, 1900–01)
2101-2120 (Lot K3, 1902–3)
2121-2140 (Lot L3, 1903–4)
2141-2160 (Lot M3, 1904–5)
Rebuilding with Belpaire fireboxes commenced in the early years of the Churchward era. Unsuccessful attempts to form a saddle tank around the firebox directly led to the switch to pannier tanks. The first pannier tank conversions occurred in 1912, and rebuilding of the majority of the class took place over many years – the last conversion was in 1948, and some were still saddle tanks when withdrawn. In their final form, with or without fully enclosed cabs, 110 of them survived into British Railways ownership, the last of them being retired in 1959

New photos start here with
2018 unknown location
https://railway-photography.smugmug...trong-2021-SaddlePannier-Tank-class/i-npNFFNq

Neil

 

I have added 5 new photos of the GWR 1076 0-6-0PT 'Buffalo' Class
https://railway-photography.smugmug...ph-Armstrong-GWR-1076-Buffalo-class/i-XhQj62q
The 1076 Class were 266 double framed 0-6-0T locomotives built by the Great Western Railway between 1870 and 1881; the last one, number 1287, was withdrawn in 1946. They are often referred to as the Buffalo Class following the naming of locomotive 1134.
These large tank locomotives, with their 4-foot-7+1⁄2-inch (1,410 mm) wheels and 17-by-24-inch (432 mm × 610 mm) dia × stroke cylinders were capable of working trains on the main line. They followed on from George Armstrong's 1016 Class built from 1867, themselves derived from the earlier 302 Class of Joseph Armstrong, and were perpetuated by his successor William Dean until 1881. Modernised saddle tank locomotives of similar size were then produced in the 1813 Class.
The first six were built with side tanks. The following locomotives had saddle tanks covering their boilers and fireboxes, but from 1874 longer saddle tank extending to the front of the smokebox were the norm. All the earlier locomotives were eventually fitted with these larger tanks. Most were reconstructed with pannier tanks from 1911 onwards.
The first locomotives had just a spectacle plate to give protection for the crew, but then small cabs, open at the back, were fitted. Later on most of the surviving locomotives were given full cabs so that there was protection when running in reverse.
Other changes to various locomotives over their long lives were Belpaire fireboxes, enlarged coal bunkers, and even superheaters. One or two were fitted with spark-arresting chimneys. 21 were fitted for working autotrains.
Broad gauge conversions
Locomotive 1256 with the last broad gauge service at Truro in 1892
Ten locomotives were built in 1876 with broad gauge wheels outside the standard double frames. Five more broad gauge locomotives were built in 1878, while from 1884 another 35 were converted from standard gauge to broad. All were eventually converted back to standard gauge.

The new photos start here
https://railway-photography.smugmug...ph-Armstrong-GWR-1076-Buffalo-class/i-XhQj62q

Neil

 

The Great Western Railway (GWR) 2301 Class or Dean Goods Class is a class of British 0-6-0 steam locomotives.
5 new photos start here
https://railway-photography.smugmug...an-060-locomotives/Dean-Goods-class/i-nFXtSvH
Swindon Works built 260 of these goods locomotives between 1883 and 1899 to a design of William Dean. The 2301 class broke with previous GWR tradition in having inside frames only and changes were made in the boiler design during the period that they were being built. The first twenty engines were originally domeless though all were provided with domed boilers in due course

The Great Western Railway (GWR) 3901 Class is a class of 2-6-2T steam locomotives rebuilt from class 2301 'Dean Goods' 0-6-0 tender locomotives.
2 new photos start here
https://railway-photography.smugmug...an-060-locomotives/Dean-Goods-class/i-SMD2FKL
In 1907, a surplus of Dean Goods locomotives, and a requirement for more suburban tank locos, led to the rebuilding of twenty of the Dean Goods into 2-6-2T 'Prairie' tank locos. The inside cylinders and motion were retained, the frames were extended at each end, and leading and trailing pony trucks added, as were a Standard number 5 boiler, full-length side tanks (with a large cut-out to give access for oiling the motion) and a bunker. Locomotives 2491-2510 were rebuilt and renumbered 3901–3920. The locomotives were allocated to the Birmingham area to replace older 2-4-2T locomotives, having the advantage of greater adhesive weight.
Most remained in the Birmingham area until 1923, when they began to be sent elsewhere, and replaced by the Large Prairies. All the class was withdrawn between 1931 and 1934, and scrapped

Neil