Taff Vale Railway U1 class
Encyclopedia
The Taff Vale Railway U and U1 classes were 0-6-2T steam tank locomotive
operated by Taff Vale Railway
, Wales
, from 1895. All were still in use when the Taff Vale Railway was acquired by the Great Western Railway
in 1922, but were withdrawn from traffic between 1927 and 1931.
, the Taff Vale Railway's Locomotive Superintendent brought out 2 similar classes, the U and the U1 for working passenger trains, both 0-6-2Ts. The only difference between the U and U1 class was in the radial wheels
which were 3 foot in the former and 3 in 1 in (0.9398 m) in the latter.
The boiler
s were identical with those fitted on the N, O and O1
classes but worked at the design pressure of 160 lbf/in2, the mixed traffic engines being worked at 150 psi (1.03 MPa), or occasionally 140 psi (0.96526602102 MPa). The main differences from the mixed traffic engines were larger diameter driving wheel
s, a longer wheelbase
and replacing the usual four bar motion with single bar.
Tank locomotive
A tank locomotive or tank engine is a steam locomotive that carries its water in one or more on-board water tanks, instead of pulling it behind it in a tender. It will most likely also have some kind of bunker to hold the fuel. There are several different types of tank locomotive dependent upon...
operated by Taff Vale Railway
Taff Vale Railway
The Taff Vale Railway is a railway in Glamorgan, South Wales, and is one of the oldest in Wales. It operated as an independent company from 1836 until 1922, when it became a constituent company of the Great Western Railway...
, Wales
Wales
Wales is a country that is part of the United Kingdom and the island of Great Britain, bordered by England to its east and the Atlantic Ocean and Irish Sea to its west. It has a population of three million, and a total area of 20,779 km²...
, from 1895. All were still in use when the Taff Vale Railway was acquired by the Great Western Railway
Great Western Railway
The Great Western Railway was a British railway company that linked London with the south-west and west of England and most of Wales. It was founded in 1833, received its enabling Act of Parliament in 1835 and ran its first trains in 1838...
in 1922, but were withdrawn from traffic between 1927 and 1931.
Overview
Tom Hurry RichesTom Hurry Riches
Tom Hurry Riches was a British engineer who became the Locomotive Superintendent of the Taff Vale Railway in October 1873, and held the post until his death. At the time of his appointment, he was the youngest locomotive superintendent in Britain....
, the Taff Vale Railway's Locomotive Superintendent brought out 2 similar classes, the U and the U1 for working passenger trains, both 0-6-2Ts. The only difference between the U and U1 class was in the radial wheels
Trailing wheel
On a steam locomotive, a trailing wheel or trailing axle is generally an unpowered wheel or axle located behind the driving wheels. The axle of the trailing wheels was usually located on a trailing truck...
which were 3 foot in the former and 3 in 1 in (0.9398 m) in the latter.
The boiler
Boiler
A boiler is a closed vessel in which water or other fluid is heated. The heated or vaporized fluid exits the boiler for use in various processes or heating applications.-Materials:...
s were identical with those fitted on the N, O and O1
Taff Vale Railway O1 class
The Taff Vale Railway O1 class was a class of 0-6-2T steam tank locomotives designed by Tom Hurry Riches and introduced to the Taff Vale Railway in 1894.-Numbering:-Withdrawal and disposal:...
classes but worked at the design pressure of 160 lbf/in2, the mixed traffic engines being worked at 150 psi (1.03 MPa), or occasionally 140 psi (0.96526602102 MPa). The main differences from the mixed traffic engines were larger diameter driving wheel
Driving wheel
On a steam locomotive, a driving wheel is a powered wheel which is driven by the locomotive's pistons...
s, a longer wheelbase
Wheelbase
In both road and rail vehicles, the wheelbase is the distance between the centers of the front and rear wheels.- Road :In automobiles, the wheelbase is the horizontal distance between the center of the front wheel and the center of the rear wheel...
and replacing the usual four bar motion with single bar.
Numbering
| Year | Quantity | Manufacturer | Serial Numbers | TVR Numbers | GWR Numbers | Notes |
|---|---|---|---|---|---|---|
| 1895 | 8 | Vulcan Foundry Vulcan Foundry Vulcan Foundry was a British locomotive builder sited at Newton-le-Willows, Lancashire .-History:It was originally opened in 1832 as Charles Tayleur and Company to produce girders for bridges, switches and crossings, and other ironwork following the opening of the Liverpool and Manchester Railway... |
1437–1444 | 191–194, 23, 72, 76 and 77 | 593, 595–597, 587, 589–591 | U class |
| 1896 | 7 | Vulcan Foundry Vulcan Foundry Vulcan Foundry was a British locomotive builder sited at Newton-le-Willows, Lancashire .-History:It was originally opened in 1832 as Charles Tayleur and Company to produce girders for bridges, switches and crossings, and other ironwork following the opening of the Liverpool and Manchester Railway... |
1458–1464 | 30, 40, 79, 195–198 | 602, 588, 592, 598, 599, 603, 600 | U1 class |
See also
- Welsh 0-6-2T locomotivesWelsh 0-6-2T locomotivesThis article summarizes Welsh 0-6-2T locomotives and, where possible, give links to main articles.The 0-6-2T tank locomotive could well be described as the standard steam locomotive of the railways of South Wales. Many of the independent railways used them and, at the grouping of 1923, the...
- Locomotives of the Great Western RailwayLocomotives of the Great Western RailwayThe first Locomotives of the Great Western Railway were specified by Isambard Kingdom Brunel but Daniel Gooch was soon appointed as the railway's Locomotive Superintendent. He designed several different broad gauge types for the growing railway, such as the Firefly and later Iron Duke Class 2-2-2s...