LSWR B4 class

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LSWR B4 Class
B4 Class No87.jpg
No. 87 as built with a stovepipe chimney and a full cab.
Type and origin
Power typeSteam
Designer William Adams
Builder LSWR Nine Elms
Build date1891 (10), 1893 (10), 1908 (5)
Total produced25
Specifications
Configuration:
   Whyte 0-4-0T
   UIC Bn2t
Gauge 4 ft 8+12 in (1,435 mm) standard gauge
Driver dia.3 ft 9+34 in (1.162 m)
Wheelbase 7 ft 0 in (2.134 m)
Length24 ft 10+12 in (7.58 m)
Height12 ft (3.66 m)
Loco weight33.4 long tons (33.9 t; 37.4 short tons) B4; 32.9 long tons (33.4 t; 36.8 short tons) K14
Fuel type Coal
Fuel capacity0.5 long tons (0.51 t; 0.56 short tons)
Water cap.600 imp gal (2,700 L; 720 US gal)
Firebox:
  Grate area10.75 sq ft (0.999 m2)
Boiler pressure140  psi (0.97  MPa)
Cylinders Two (outside)
Cylinder size 16 in × 22 in (406 mm × 559 mm)
Performance figures
Tractive effort 14,650 lbf (65.17 kN)
Career
Operators London and South Western Railway
Southern Railway
British Railways
Class LSWR: B4 (also LSWR K14 Class)
SR: B4
Power classBR: 0F, later 1F
Retired1948–1963
DispositionTwo preserved, remainder scrapped

The London and South Western Railway B4 class is a class of 0-4-0 tank engines originally designed for station piloting and dock shunting. They were later used extensively in Southampton Docks for nearly half a century.

Contents

Design

The locomotives were designed by the London and South Western Railway (LSWR) Locomotive Superintendent William Adams. They were unusual in having inside Stephenson valve gear but outside cylinders and coal bunkers on the footplate inside the cab. The class were originally built with Adams' stovepipe chimney, although these were later replaced by a lipped version designed by Adams' successor, Dugald Drummond. Some examples also had cut away cabs to improve visibility. They were designed for shunting in locations with a sharp curves, such as the dockyard at Devonport and as pilots at the major stations. [1]

Construction

The LSWR originally ordered ten locomotives in 1890 from its Nine Elms Works. The class was designated by their order number ‘B4’ and delivered during 1891 and 1892. A further ten locomotives were ordered in 1893 which were delivered in November and December of that year under order D6. [2]

Drummond designed a similar class of five locomotives in 1907, with a slightly smaller boiler and lipped chimney. These were delivered during 1908 under order K14. No. 84, delivered in June 1908 was the last locomotive to be built at Nine Elms Works prior to the works' transfer to Eastleigh. These locomotives were originally regarded as a new class. However, Drummond's successor Robert Urie, considered them to be so similar to the originals, that they were merged with the B4 class in 1912. [2]

Order No.YearQuantityLSWR numbersNotes
B418911085–94
D618931081, 95–100, 102, 103, 176
K1419085746, 747, 82–84746/747 renumbered 101/147 in 1922
Preserved Normandy, with a cut away cab. Normandy at work 1.jpg
Preserved Normandy, with a cut away cab.

Service

The first ten locomotives were allocated to major stations throughout the system including Eastleigh, Exmouth Junction, Bournemouth and Plymouth Friary (for use on Cattedown Wharfs and the Turnchapel branch). In November 1892 the LSWR purchased the Southampton Docks, and so both new and existing B4s were sent there over the next few years to replace the existing motive power as they became worn out. By 1899 their use as station pilots had ceased except at Exeter and fourteen were working in Southampton Docks. Other members of the class were assigned to various depots around the LSWR system, for yard and dock shunting. [2]

After 1923 the Southern Railway also used them at Dover Marine, Ashford, Stewarts Lane, Hamworthy (for use at Poole Quay) and at Guildford (as a shed pilot). At least two were retained at Eastleigh one of which was used to shunt the cramped goods yard at Winchester City railway station.

Names

The locomotives used by Southampton Docks, were also given names reflecting the destinations of ships then sailing from Southamton numbers.

LSWR No.Name
85 Alderney
81 Jersey
86 Havre
89 Trouville
90 Caen
93 St Malo
95 Honfleur
96 Normandy
97 Brittany
98 Cherbourg
102 Granville
176 Guernsey
746 Dinan
747 Dinard

Withdrawals

Following the introduction of the SR USA class to Southampton Docks in 1947, many of the class were made redundant. Withdrawals began under British Railways in May 1948, but others were still in good condition and eleven were sold during 1948/9 for industrial use. Withdrawals resumed in 1957 following the introduction of diesel shunters and by 1961 only three survived. These were withdrawn in 1963. [3]

Table of withdrawals
YearQuantity in
service at
start of year
Quantity
withdrawn
Locomotive numbersNotes
194825430090–91, 30101/7630101 and 30176 sold
1949211030081/85/92/95/97–100, 30103/47All except 30085 sold
195711230082/94
19589130087
19598430083–84/86/88
19604130093
19633330089/96, 3010230096 and 30102 sold

Preservation

Preserved Normandy on the Bluebell Railway Normandy at work 2.jpg
Preserved Normandy on the Bluebell Railway
Preserved Granville at Bressingham Bressingham Steam Museum and Gardens 12.jpg
Preserved Granville at Bressingham

Two examples of the class have survived into preservation:

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References

  1. Bradley 1967, p. 53.
  2. 1 2 3 Bradley 1967, p. 53-4.
  3. Bradley 1967, p. 56.
  4. Stone 1999, p. 100.