LNWR Dock Tank

LNWR 317 class
4′ 3″ Saddle Tank Shunter

Side-on view of locomotive 317

Works photograph of No. 317

Type and origin
Power type	Steam
Builder	Crewe Works
Serial number	3741, 3946, 3977–3984, 4175–4184
Build date	1896–1901
Total produced	20

Specifications
Configuration	0-4-2ST
UIC class	B1′ n2t
Gauge	4 ft 8 ¹⁄₂ in (1,435 mm)
Driver diameter	4 ft 3 in (1.295 m) + 2 ¹⁄₂-inch (64 mm) tyres
Trailing dia	2 ft 6 in (0.762 m)
Wheelbase	Coupled: 7 ft 3 in (2.21 m) Loco: 15 ft 6 in (4.72 m)
Loco weight	34 long tons 17 cwt (78,100 lb or 35.4 t)
Fuel type	Coal
Fuel capacity	1.5 long tons (1.5 t)
Water cap	620 imp gal (2,800 l; 740 US gal)
Firebox: • Firegrate area	15 sq ft (1.4 m²)
Boiler pressure	150 lbf/in² (1.03 MPa)
Heating surface	967 sq ft (89.8 m²)
Cylinders	Two, inside
Cylinder size	17 in × 24 in (432 mm × 610 mm)

Career
Operators	London and North Western Railway London, Midland and Scottish Railway British Railways
Power class	LMS: 1P, later 0F
Number in class	1 January 1923: 20 1 January 1948: 2
Nicknames	Bissel tanks
Withdrawn	1927–1956
Disposition	All scrapped

The LNWR 317 class, (also known as Saddle Tank Shunter, Dock Tank or Bissel Tank) consisted of a class of 20 square saddle-tanked steam locomotives built by the London and North Western Railway at their Crewe Works between 1896 and 1901. They had a very short coupled wheelbase, with a trailing Bissel truck to carry weight.

They were built in three batches of 1, 9 and 10; their first running number was chosen at random from the numbers left vacant by locomotives that had been transferred to the duplicate list. This fate was almost immediately suffered by the 317 class – after only one or two months in service.^[1]

All passed to the London, Midland and Scottish Railway in 1923, who initially allocated them the numbers 6400–6419 in the passenger tank sequence. Only five (6402/03/07/14/18) had been renumbered before the numbers were changed to 7850–7869 in 1927, thus moving them into the goods and shunting tanks. The LMS changed their power classification from 1P^[2] to 0F at the same time.

Two, 7862 and 7865, survived to enter British Railways service in 1948; 7865 was withdrawn in November 1953, and 7862 three years later. None were preserved.

Bissel tank 7862 at Crewe Works in May 1948. It didn't receive its BR number until March 1949, and lasted until November 1956, by which time it was the last of its class.

Table of locomotives^[1]
First LNWR No.	Crewe Works no.	Build date	Duplicate LNWR No.	Date duplicated	1st LMS No.	2nd LMS No.	Date withdrawn
317	3741	000000001896-11-01-0000Nov 1896	3464	000000001899-10-01-0000Oct 1899	6400	7850	000000001930-11-01-0000Nov 1930
19	3976	000000001899-11-01-0000Nov 1899	3465	000000001899-12-01-0000Dec 1899	6401	7851	000000001932-11-01-0000Nov 1932
22	3977	000000001899-11-01-0000Nov 1899	3466	000000001899-12-01-0000Dec 1899	6402	7852	000000001927-11-01-0000Nov 1927
25	3978	000000001899-11-01-0000Nov 1899	3467	000000001899-12-01-0000Dec 1899	6403	7853	000000001932-08-01-0000Aug 1932
26	3979	000000001899-11-01-0000Nov 1899	3468	000000001899-12-01-0000Dec 1899	6404	7854	000000001930-12-01-0000Dec 1930
38	3980	000000001899-11-01-0000Nov 1899	3469	000000001899-12-01-0000Dec 1899	6405	7855	000000001936-07-01-0000Jul 1936
39	3981	000000001899-11-01-0000Nov 1899	3470	000000001899-12-01-0000Dec 1899	6406	7856	000000001929-12-01-0000Dec 1929
47	3982	000000001899-11-01-0000Nov 1899	3471	000000001899-12-01-0000Dec 1899	6407	7857	000000001929-11-01-0000Nov 1929
49	3983	000000001899-11-01-0000Nov 1899	3472	000000001899-12-01-0000Dec 1899	6408	7858	000000001936-12-01-0000Dec 1936
51	3984	000000001899-11-01-0000Nov 1899	3473	000000001899-12-01-0000Dec 1899	6409	7859	000000001938-06-01-0000Jun 1938
813	4175	000000001901-10-01-0000Oct 1901	3524	000000001901-12-01-0000Dec 1901	6410	7860	000000001929-12-01-0000Dec 1929
815	4176	000000001901-10-01-0000Oct 1901	3525	000000001901-12-01-0000Dec 1901	6411	7861	000000001932-12-01-0000Dec 1932
823	4177	000000001901-11-01-0000Nov 1901	3526	000000001901-12-01-0000Dec 1901	6412	7862	000000001956-11-01-0000Nov 1956
826	4178	000000001901-11-01-0000Nov 1901	3527	000000001901-12-01-0000Dec 1901	6413	7863	000000001931-11-01-0000Nov 1931
843	4179	000000001901-11-01-0000Nov 1901	3528	000000001901-12-01-0000Dec 1901	6414	7864	000000001929-11-01-0000Nov 1929
859	4180	000000001901-11-01-0000Nov 1901	3529	000000001902-01-01-0000Jan 1902	6415	7865	000000001953-11-01-0000Nov 1953
898	4181	000000001901-11-01-0000Nov 1901	3530	000000001902-01-01-0000Jan 1902	6416	7866	000000001931-10-01-0000Oct 1931
899	4182	000000001901-11-01-0000Nov 1901	3531	000000001902-01-01-0000Jan 1902	6417	7867	000000001932-06-01-0000Jun 1932
904	4183	000000001901-11-01-0000Nov 1901	3532	000000001902-01-01-0000Jan 1902	6418	7868	000000001929-11-01-0000Nov 1929
905	4184	000000001901-11-01-0000Nov 1901	3533	000000001902-01-01-0000Jan 1902	6419	7869	000000001932-11-01-0000Nov 1932

References

1 2 Baxter 1979, p. 214.
↑ Casserley & Johnson 1974, p. 71.

Baxter, Bertram (1979). Baxter, David, ed. British Locomotive Catalogue 1825–1923, Volume 2B: London and North Western Railway and its constituent companies. Ashbourne, Derbyshire: Moorland Publishing Company. p. 214. ISBN 0-903485-84-2.
Casserley, H.C. & Johnston, Stuart W. (1974) [1966]. Locomotives at the Grouping 3: London, Midland and Scottish Railway. Shepperton, Surrey: Ian Allan. p. 71. ISBN 0-7110-0554-0.

External links

http://www.lnwrs.org.uk/GoodsLocos/Loco08.php

Wikimedia Commons has media related to LNWR Dock Tanks.

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