GWR 633 Class

Last updated

GWR 633 Class
9 643 condensing tank small.jpg
Type and origin
Power typeSteam
Designer George Armstrong
Builder GWR Wolverhampton Works
Order numberM
Serial number167–178
Build date1871-1872
Total produced12
Specifications
Configuration:
​
 •  Whyte 0-6-0T
Gauge 4 ft 8+1⁄2 in (1,435 mm) standard gauge
Driver dia.4 ft 6+1⁄2 in (1,384 mm)
Wheelbase 15 ft 6 in (4.72 m)
Loco weight34 long tons 12 cwt (35.2 t; 38.8 short tons)
Cylinder size 16 in × 24 in (406 mm × 610 mm) dia × stroke
Career
Operators Great Western Railway
Class 633
Numbers633–644
Withdrawn1928-1934
DispositionAll scrapped

The GWR 633 Class were 0-6-0 T s designed by George Armstrong and built at the Wolverhampton railway works of the Great Western Railway between November 1871 and April 1872. These were always Southern Division locomotives, but over the years some were fitted to work the Metropolitan lines and played a large role in the transportation of goods from Acton to Smithfield.[ citation needed ] Unusually, they had side (not saddle) tanks, and inside frames, with wheels of 4 ft 6+1⁄2 in (1,384 mm) in diameter and a wheelbase of 15 ft 6 in (4.72 m). Their weight was 34 long tons 12 cwt (35.2 t; 38.8 short tons). There were twelve locomotives, numbered 633–644. [1] [2]

Contents

Modifications

Nos. 643 and 644 were fitted with condensing apparatus when built, for working on the Metropolitan Railway's Widened Lines and this was added to some others in the 1890s. These were the first six-coupled engines to be accepted for the widened lines.[ citation needed ] From 1887 they were reboilered with Dean pattern boilers, and the wheels were enlarged by 1 inch (2.5 cm) by means of thicker tyres. The class was reboilered again with Belpaire fireboxes (but not pannier tanks) between 1916 and 1925. 633, 634, and all the others fitted with condensers were sent to the London Division and were cabless to work through then metropolitan tunnels. The ones not fitted with condensers were fitted with a cab and allocated to South Wales.[ citation needed ]

Service

They were intended for the Southern Division of the GWR. The condenser-fitted engines worked in the London area, others at Neath in South Wales. Withdrawal took place from 1928 to 1934. [3]

Related Research Articles

The Great Western Railway 3800 Class, also known as the County Class, were a class of 4-4-0 steam locomotives for express passenger train work introduced in 1904 in a batch of ten. Two more batches followed in 1906 and 1912 with minor differences. They were designed by George Jackson Churchward, who used standard components to produce a four-coupled version of his Saint Class 4-6-0s.

<span class="mw-page-title-main">GWR 5600 Class</span>

The GWR 5600 Class is a class of 0-6-2T steam locomotive built between 1924 and 1928. They were designed by Charles Collett for the Great Western Railway (GWR), and were introduced into traffic in 1924. After the 1923 grouping, Swindon inherited a large and variable collection of locomotives from historic Welsh railway companies, which did not fit into their standardisation programme. GWR boiler inspectors arrived en masse and either condemned the original locomotives or had them rebuilt. The systematic destruction of many examples of locomotives, most still in serviceable condition, followed, but various were worked alongside 5600 Class.

<span class="mw-page-title-main">GWR 5400 Class</span>

The Great Western Railway (GWR) 5400 Class was a class of 0-6-0 pannier tank steam locomotive. They were similar in appearance to many other GWR tank engines but smaller than the ubiquitous GWR 5700 Class.

<span class="mw-page-title-main">GWR 2221 Class</span>

The Great Western Railway (GWR) 2221 Class or County Tank was a class of 4-4-2T steam locomotive, effectively a tank engine version of the 3800 "County" Class 4-4-0 tender locomotives. The two classes had different boilers, standard no 4 for the tender locomotive, and the smaller standard no 2 for the tank. 2230 was fitted with the larger boiler when new, but this was unsuccessful and was quickly altered.

<span class="mw-page-title-main">GWR 4575 Class</span>

The Great Western Railway (GWR) 4575 Class is a class of 2-6-2T British steam locomotives.

<span class="mw-page-title-main">GWR 4500 Class</span>

The Great Western Railway (GWR) 4500 Class or Small Prairie is a class of 2-6-2T steam locomotives.

The Great Western Railway (GWR) 3600 Class was a class of 2-4-2T side tank steam locomotive, designed by William Dean and built at Swindon in three lots in 1900-1903:

<span class="mw-page-title-main">GWR 5100 Class</span>

The Great Western Railway (GWR) GWR 5100 Class was a class of 2-6-2T side tank steam locomotives. It was the first of a series of broadly similar classes used principally for suburban passenger services.

The Daniel Gooch standard gauge locomotives comprise several classes of locomotives designed by Daniel Gooch, Superintendent of Locomotive Engines for the Great Western Railway (GWR) from 1837 to 1864.

Between 1854 when the Shrewsbury and Chester and Shrewsbury and Birmingham Railways were absorbed by the Great Western Railway, and 1864 when he moved south to Swindon Works, Joseph Armstrong occupied the post of the GWR's Locomotive Superintendent, Northern Division, at Wolverhampton Works. For ten years the task of providing new locomotives for the GWR's newly acquired standard gauge lines fell jointly to Armstrong and to his superior Daniel Gooch, the railway's principal Locomotive Superintendent who was based at Paddington.

<span class="mw-page-title-main">GWR 481 Class</span>

The GWR 481 Class was a class of 20 2-4-0 mixed-traffic steam locomotives designed for the Great Western Railway by Joseph Armstrong and built at Swindon Works in 1869. They were similar in size to the 439 Class but differed in appearance, thanks to the flowing lines of their outside frames.

The 806 Class was Joseph Armstrong's last design of 2-4-0 mixed-traffic locomotives for the Great Western Railway, built at Swindon Works in 1873. A further 20 similar locomotives were added by Armstrong's successor William Dean in 1881-2; numbered 2201–2220, these had modern domeless boilers. The class had a similar appearance to the 717 Class but had driving wheels 6 in (152 mm) larger.

<span class="mw-page-title-main">GWR 455 Class</span>

The GWR 455 Class, also called the "Metropolitan" or "Metro" Tanks, was a series of 140 2-4-0T locomotives built for the Great Western Railway, originally for their London suburban services, including running on the underground section of the Metropolitan Railway, the source of their nickname. Later on the class was seen on many other parts of the GWR system. Sixty "Metro" Tanks were built, from 1868 onwards, during the lifetime of their designer, Joseph Armstrong. His successor William Dean regarded the class so highly that he would add a further 80, the final 20 examples appearing as late as 1899. The "Metros" were all built at Swindon Works, in nine lots of ten or 20 engines each.

The 1016 Class consisted of sixty double framed 0-6-0ST locomotives designed by George Armstrong and built at the Wolverhampton Works of the Great Western Railway between 1867 and 1871. Like the earlier 302 Class of Joseph Armstrong, the 1016s had 4 ft 6 in (1.372 m) wheels and a 15 ft 6 in (4.72 m) wheelbase, dimensions that would remain traditional for the larger GWR pannier tanks right through to Charles Collett's 5700 Class, and with little change to Frederick Hawksworth's 9400 Class of 1947.

The Great Western Railway's 1813 Class was a series of 40 0-6-0T built at Swindon Works in two lots of 20 engines each. No. 1813 was sold to the Pembroke & Tenby Railway in May 1883 becoming No.7 Holmwood, retaining this name after being absorbed by the GWR. Nearly all of these engines spent their lives on the GWR's Southern Division.

The 1661 Class was William Dean's second design of tank locomotive for England's Great Western Railway. Like the 1813 Class which preceded them, there were 40 1661s, turned out of Swindon Works in two batches.

The GWR 1854 Class was a class of 0-6-0T steam locomotives designed by William Dean and constructed at the Swindon Works of the Great Western Railway. The class used similar inside frames and chassis dimensions to the 1813 Class of 1882-4. In this they differed from the intervening 1661 Class, which had reverted to the double frames of the Armstrong era. Thus the 1854 Class belongs to the "mainstream" of GWR 0-6-0T classes that leads towards the larger GWR pannier tanks of the 20th century.

The 3001 Class as constructed by William Dean at the Swindon Works of the Great Western Railway in 1891-2 was the culmination of the tradition of GWR 2-2-2 locomotives that had begun with Gooch's North Star over 50 years earlier. The 3001s, which had 7 ft 9 in (2.362 m) driving wheels, were built in two batches:

The 3232 Class, 20 2-4-0 locomotives designed by William Dean and built at Swindon Works for the Great Western Railway in 1892–93, were the GWR's last completely new 2-4-0 design. Their number series was 3232–3251.

<span class="mw-page-title-main">GWR 4600 Class</span> Class of 1 two-cylinder 4-4-2T locomotive

The 4600 Class was a 4-4-2T steam locomotive built by the Great Western Railway in 1913. It was one of the GWR standard classes with two outside cylinders.

References

  1. ↑ Smith, Martin, Steam on the Underground, Ian Allan Publishing 1994, p.22, ISBN   0-7110-2282-8
  2. ↑ Allcock et al. (1968), p. 20.
  3. ↑ le Fleming 1958, pp. E33–E35.

Sources

This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.