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The Caledonian Railway 264 and 611 classes were 0-4-0 saddle tank locomotives designed by Dugald Drummond and built by Neilson and Company in 1885.〔〔"611 Caledonian Class 0-4-0" in ''The Observer's Book of Railway Locomotives of Great Britain'' (Warne & Co 1961), p.148〕 Later examples were built at St. Rollox railway works under the direction of John F. McIntosh in 1895, 1900, 1902 and 1908.〔〔MacLeod, A.B. ''The McIntosh locomotives of the Caledonian Railway, 1895-1914''. (London, Ian Allan, 1948) p.44〕〔(Caledonian Locomotives ), www.steamindex.com〕 These small shunters remained in long service under the LMS (who designated all Neilson saddle locomotives as Class 0F) and British Railways, with the last of the class withdrawn in 1962.〔(Class 0F image ), railuk.info〕〔(Class 264 image )〕 The 0F class, sometimes referred to by the generic term "pugs", were mainly used as works shunters in the area around Glasgow, Scotland, often running with home-made tenders to improve their small coal capacity.〔 Like most 0-4-0 tanks of the period they had outside cylinders and inside slide valves driven by Stephenson valve gear. A number were later sold into private industry and several even made it as far south as Crewe where they acted as works shunters in British Railways days.〔 None of the various 0F class locomotives have survived into preservation. They are easily confused with the earlier 1882-built ex-North British Railway Class Y-9 (NBR Class G), also designed by Dugald Drummond to a similar saddle tank design, although the 0F is distinguished by a taller chimney and larger circular windows.〔 Both were originally commissioned from Drummond by Neilson & Co to a standard design and were used by North British, LNER and British Railways. One NBR Y-9 shunter (No.42 68095) has been preserved at the Bo'ness & Kinneil Railway museum.〔(NB Y-9 ) at the LNER Encyclopedia〕 ==Construction== Construction was spread over several years, and eventually totalled 34 locomotives, as follows: All were built at the St Rollox works of the Caledonian Railway. Orders Y1, Y22 and Y27 were placed by Dugald Drummond and formed the 264 Class; the remainder were ordered by John F. McIntosh and formed the 611 Class.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Caledonian Railway 264 Class」の詳細全文を読む スポンサード リンク
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