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。
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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 RailwayPolar Bear178119052-4-0TOriginally 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 RailwayPeter206719170-4-0STPeter 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 RailwayWendy209119190-4-0STWendy 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 RailwayIsabel149118970-4-0STa 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 LineLamport No.3267019420-6-0STone of a batch of 6 similar locomotives supplied to the Staveley Coal and Iron Company. Stored undercover awaiting overhaulChasewater RailwayLinda264819400-4-0STthe first of a batch of 9 supplied to the Ministry of Supply for use at Royal Ordnance FactoriesBodmin and Wenford RailwayNo. 19296219500-4-0STBodmin and Wenford RailwayAlfred305819530-4-0STBodmin and Wenford RailwayJudy257219370-4-0STBodmin and Wenford Railway312119570-4-0FRare 無火機関車Bodmin and Wenford Railway276619440-6-0STJ94 classBredgar & Wormshill Light RailwayArmistice208819190-4-0STBirmingham, Tame & Rea District Drainage Board Railway, Minworth, EnglandCripple Creek and Victor Narrow Gauge RailroadNo. 4 ...19470-4-4-0TLocate in Cripple Creek, Colorado USA and used as season tourist train in one of Colorado's old mining districtsFoxfield Light RailwayHawarden262319400-4-0STbuilt for Butterley Company's steelworks, Ripley, DerbyshireFoxfield Light RailwayNo. 2284219460-4-0STbuilt for the Kent Electric Power Company at Littlebrook Power Station, near DartfordFoxfield Light RailwayFlorence No. 2305919540-6-0STbuilt for the NCB North Staffordshire Area Foxfield Light RailwayLewisham222119270-6-0STbuilt for the Shropshire Beet Sugar Company at Alscott, near WellingtonFoxfield Light RailwayLeys302719610-4-0DHthe last-but-one locomotive built by W G BagnallGroudle Glen RailwaySea Lion148618962-4-0TOriginally 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19280-4-4T旧 沙頭角鉄路Kent (exact location uncertain) http://www.kenavon.org.ukHuntley & Palmers No.1247319320-4-0F無火機関車Phyllis Rampton Trust222819280-4-4T旧 沙頭角鉄路Phyllis Rampton TrustConqueror219219220-6-2Tex Bowaters Paper Railway and Great Whipsnade RailwayPhyllis Rampton Trust289519480-4-2STPhyllis Rampton Trust202919162-6-2TPhyllis Rampton Trust246019324-6-2Phyllis Rampton Trust245719324-6-2Phyllis Rampton Trust254519360-4-4-0Tex Renishaw Sugar Mill, South AfricaPlym Valley RailwayByfield265519420-6-0STBuilt to work at Byfield Ironstone Quarry in Northamptonshire. Overhaul is expected to start very soonRushden, Higham & Wellingborough RailwayCherwell265419420-6-0STbuilt for the Byfield Ironstone Co's quarryRutland Railway Museum"Cranford" No 2. 0-6-0STAwaiting overhaul, boiler ticket expired in 2006.Welsh Highland RailwaySinembe228719274-4-0Tbuilt for the Tongaat Sugar Estates, Natal.Welsh Highland RailwayGelert305019530-4-2Tbuilt for the Rustenberg Platinum Mines in South Africa.Welsh Highland RailwayMoel Tryfan3023195?0-4-2Tbuilt for the Rustenberg Platinum Mines in South Africa.Welshpool and Llanfair Light RailwayMonarch302419530-4-4-0Tbuilt for the Bowaters Paper Railway in Kent. This was last narrow gauge steam locomotive built for industrial service in the UK.Welshpool & Llanfair Light Railway : Home PageStephenson Railway MuseumThomas Burt MP40119500-6-0There were three, but two survive.East Anglian Railway MuseumJubilee254219360-4-0Returned to traffic in 2007 after an 18 month overhaul, painted in unlined light greenMuzium NegaraFMSR No. 13/MR 321.01232319280-6-2TOne 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, PBUSJ #3 "João Felipe"173719030-4-0ST+TUnmounted.Usina Santa Tereza in Goiana, PE"Santa Tereza" (ex "Catu"; unnumbered)198119130-4-2TOperated before at Usina Nossa Senhora das Maravilhas, also in the state of Pernambuco, where her name used to be "Catu".Stephenson Railway MuseumVulcan2994-619500-6-0A 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.https://www.ntsra.org.uk/401.html
運行中 BN 1965 0-6-0 Powelltown Tramway Light Railways April 2010
脚注
外部リンク Foxfield Light Railway stocklist（英語） Amberley Working Museum locomotives（英語） Short article provided by Bagnall apprentice（英語） Short article by Tyneside railway association（英語）