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W・G・バグナル（W. G. Bagnall）は、イギリスのスタッフォードにあった機関車メーカーである。

概要

ウィリアム・ゴードン・バグナル(William Gordon Bagnall)によって1875年に設立され、スタフォードにキャッスル工場を置いていたが、1962年にイングリッシュ・エレクトリックに買収され、消滅した。その製品の大半は、小型で産業用の2動軸または3動軸の蒸気機関車で、その多くが狭軌用であった。バグナルは、標準軌や狭軌の蒸気機関車およびディーゼル機関車の製造者として、よく知られていた。

バグナルは、蒸気機関車の弁装置に、バグナル&プライス式やバグレー式といった、いくつかの新機軸を導入した。それはまた、狭軌機関車で安価なものであったが、設計の特徴としてにマリン形（円形）の火室を採用していた。

カー・ステュアートの技師長であったドローツマンを採用した際には、カー・スチュアートの設計の一部がバグナルに持ち込まれた。そのような機関車の例は、シッティング&ケムズレー軽鉄道で見ることができる。

日本との関わり

日本の国有鉄道が導入したのは、新橋工場の入換用に購入した1両（後の鉄道院1形）だけで、軌間1,067mm (3ft6in) のものもこれのみである。国有鉄道籍を得たものは、他に762mm (2ft6in) 軌間で旧佐世保鉄道引継ぎのケ97、ケ98があるに過ぎない。バグナルの機関車は小型のものが多く、合わせて7形式14両が青梅鉄道や中遠鉄道、陸軍鉄道連隊などによって輸入されているが、いずれも重量10t以下の軽便鉄道用や産業用のものばかりである。

画像

0-4-0ST Woto at Alan Keef Ltd., 1999
0-4-2WT Olive, an 1 ft 6 in (457 mm) gauge locomotive, at the Kimberley_Mine_Museum, 2007
Saddle tank narrow gauge locomotive no 2090 Pixie, on the Cadeby Light Railway in 1981
Huntley & Palmers No.1, Bagnall 0-4-0F preserved at Cholsey and Wallingford Railway
An O16.5 model based on a Bagnall 0-4-2T design
Cliffe Hill Mineral Railway locomotive Isabel, preserved on a plinth in Stafford in 1974.
中遠鉄道2号機関車のレプリカ（2011年12月、静岡県袋井市・浅羽記念公園）

保存

保存場所	愛称・番号	製造番号	製造年	車軸配置	軌間	備考
Amberley Museum Railway	Polar Bear	1781	1905	2-4-0T	2 ft (610 mm)	Originally built for the Groudle Glen Railway, the Bear as she is affectionately known was acquired by the Brockham Museum Trust soon after the GGR closed. She came to Amberley when the Brockham collection was transferred there in 1982. Currently under overhaul.
Amberley Museum Railway	Peter	2067	1917	0-4-0ST	2 ft (610 mm)	Peter was built as a 3 ft gauge engine for the Canadian Forestry Commission. However due to cessation of hostilities it was returned to the manufacturer and, after being regauged to 2 ft, was put to work at the Cliffe Hill Quarry Company. Peter recently returned to service after a six-year restoration.
Amberley Museum Railway	Wendy	2091	1919	0-4-0ST	2 ft (610 mm)	Wendy is a 2 ft gauge Quarry Bagnall formerly used at the Dorothea Quarry in North Wales. She is currently on loan to Amberley Museum from the Hampshire Narrow Gauge Railway Society.
Amerton Railway	Isabel	1491	1897	0-4-0ST	2 ft (610 mm)	a typical Bagnall narrow gauge loco - this loco was for many years on public display opposite Stafford Railway Station before it was restored to use.
Battlefield Line	Lamport No.3	2670	1942	0-6-0ST	4 ft 8+1⁄2 in (1,435 mm)	one of a batch of 6 similar locomotives supplied to the Staveley Coal and Iron Company. Stored undercover awaiting overhaul
Chasewater Railway	Linda	2648	1940	0-4-0ST	4 ft 8+1⁄2 in (1,435 mm)	the first of a batch of 9 supplied to the Ministry of Supply for use at Royal Ordnance Factories
Bodmin and Wenford Railway	No. 19	2962	1950	0-4-0ST	4 ft 8+1⁄2 in (1,435 mm)
Bodmin and Wenford Railway	Alfred	3058	1953	0-4-0ST	4 ft 8+1⁄2 in (1,435 mm)
Bodmin and Wenford Railway	Judy	2572	1937	0-4-0ST	4 ft 8+1⁄2 in (1,435 mm)
Bodmin and Wenford Railway		3121	1957	0-4-0F	4 ft 8+1⁄2 in (1,435 mm)	Rare 無火機関車
Bodmin and Wenford Railway		2766	1944	0-6-0ST	4 ft 8+1⁄2 in (1,435 mm)	J94 class
Bredgar & Wormshill Light Railway	Armistice	2088	1919	0-4-0ST	2 ft (610 mm)	Birmingham, Tame & Rea District Drainage Board Railway, Minworth, England
Cripple Creek and Victor Narrow Gauge Railroad	No. 4	...	1947	0-4-4-0T	2 ft (610 mm)	Locate in Cripple Creek, Colorado USA and used as season tourist train in one of Colorado's old mining districts
Foxfield Light Railway	Hawarden	2623	1940	0-4-0ST	4 ft 8+1⁄2 in (1,435 mm)	built for Butterley Company's steelworks, Ripley, Derbyshire
Foxfield Light Railway	No. 2	2842	1946	0-4-0ST	4 ft 8+1⁄2 in (1,435 mm)	built for the Kent Electric Power Company at Littlebrook Power Station, near Dartford
Foxfield Light Railway	Florence No. 2	3059	1954	0-6-0ST	4 ft 8+1⁄2 in (1,435 mm)	built for the NCB North Staffordshire Area
Foxfield Light Railway	Lewisham	2221	1927	0-6-0ST	4 ft 8+1⁄2 in (1,435 mm)	built for the Shropshire Beet Sugar Company at Alscott, near Wellington
Foxfield Light Railway	Leys	3027	1961	0-4-0DH	4 ft 8+1⁄2 in (1,435 mm)	the last-but-one locomotive built by W G Bagnall
Groudle Glen Railway	Sea Lion	1486	1896	2-4-0T	2 ft (610 mm)	Originally built for the Groudle Glen Railway and operated in the glen until the Second World War. She was then left to rust outside the engine shed, and used for spart parts for Polar Bear until after the railway ceased operating in 1963. The rusted locomotive was rescued from the glen, and following a number of years as a static exhibit she was rebuilt as an Apprentice training project by British Nuclear Fuels at Sellafield in 1987 and returned to service on the Groudle Glen Railway in 1987, which in the meantime had been restored by a group of volunteers.
香港鉄路博物館			1928	0-4-4T	2 ft (610 mm)	旧沙頭角鉄路
Kent (exact location uncertain) ^[1]	Huntley & Palmers No.1	2473	1932	0-4-0F	4 ft 8+1⁄2 in (1,435 mm)	無火機関車
Phyllis Rampton Trust		2228	1928	0-4-4T	2 ft (610 mm)	旧沙頭角鉄路
Phyllis Rampton Trust	Conqueror	2192	1922	0-6-2T	2 ft 6 in (762 mm)	ex Bowaters Paper Railway and Great Whipsnade Railway
Phyllis Rampton Trust		2895	1948	0-4-2ST	2 ft (610 mm)
Phyllis Rampton Trust		2029	1916	2-6-2T	2 ft 6 in (762 mm)
Phyllis Rampton Trust		2460	1932	4-6-2	2 ft (610 mm)
Phyllis Rampton Trust		2457	1932	4-6-2	2 ft (610 mm)
Phyllis Rampton Trust		2545	1936	0-4-4-0T	600 mm (1 ft 11+5⁄8 in)	ex Renishaw Sugar Mill, South Africa
Plym Valley Railway	Byfield	2655	1942	0-6-0ST	4 ft 8+1⁄2 in (1,435 mm)	Built to work at Byfield Ironstone Quarry in Northamptonshire. Overhaul is expected to start very soon
Rushden, Higham & Wellingborough Railway	Cherwell	2654	1942	0-6-0ST	4 ft 8+1⁄2 in (1,435 mm)	built for the Byfield Ironstone Co's quarry
Rutland Railway Museum	"Cranford" No 2.			0-6-0ST	4 ft 8+1⁄2 in (1,435 mm)	Awaiting overhaul, boiler ticket expired in 2006.
Welsh Highland Railway	Sinembe	2287	1927	4-4-0T	2 ft (610 mm)	built for the Tongaat Sugar Estates, Natal.
Welsh Highland Railway	Gelert	3050	1953	0-4-2T	2 ft (610 mm)	built for the Rustenberg Platinum Mines in South Africa.
Welsh Highland Railway	Moel Tryfan	3023	195?	0-4-2T	2 ft (610 mm)	built for the Rustenberg Platinum Mines in South Africa.
Welshpool and Llanfair Light Railway	Monarch	3024	1953	0-4-4-0T	2 ft 6 in (762 mm)	built for the Bowaters Paper Railway in Kent. This was last narrow gauge steam locomotive built for industrial service in the UK.^[2]
Stephenson Railway Museum	Thomas Burt MP	401	1950	0-6-0	4 ft 8+1⁄2 in (1,435 mm)	There were three, but two survive.
East Anglian Railway Museum	Jubilee	2542	1936	0-4-0	4 ft 8+1⁄2 in (1,435 mm)	Returned to traffic in 2007 after an 18 month overhaul, painted in unlined light green
Muzium Negara	FMSR No. 13/MR 321.01	2323	1928	0-6-2T	3 ft 6 in (1,067 mm)	One of five lightweight shunters used on the wharves in Port Swettenham and Singapore. Originally owned by the Federated Malay States Railways and Malayan Railways. Sold to Pan-Malayan Cement in 1965 and painted green, but returned to MR and cosmetically restored with black MR livery in 1972. Placed on display beside Muzium Negara in 1973.
Usina São João in Santa Rita, PB	USJ #3 "João Felipe"	1737	1903	0-4-0ST+T	3 ft 3+3⁄8 in (1,000 mm)	Unmounted.
Usina Santa Tereza in Goiana, PE	"Santa Tereza" (ex "Catu"; unnumbered)	1981	1913	0-4-2T	2 ft 5+1⁄2 in (750 mm)	Operated before at Usina Nossa Senhora das Maravilhas, also in the state of Pernambuco, where her name used to be "Catu".
Stephenson Railway Museum	Vulcan	2994-6	1950	0-6-0	4 ft 8+1⁄2 in (1,435 mm)	A batch of three built for the Steel Company of Wales, they were used at their Abbey, Margam and Port Talbot Steelworks. Replaced by diesels in 1957, 2994 and 2996 were sold in September to the Austin Motor Company of Longbridge plant, Birmingham. No.2995 went to the N.C.B. in South Wales, and was scrapped in 1967. Sold to the West Somerset Railway, 2994 and 2996 become the core of the WSR's early motive power. Replaced by authentic GWR locomotives, 2994 was sold to the Stephenson Railway Museum, were it worked until 2009, and now stored awaiting restoration. 2996 was sold to the Lakeside and Haverthwaite Railway.^[3]