NBR 141 Class
{{Infobox locomotive
| name = NBR 141 Class
| image =
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| powertype = Steam
| designer = Thomas Wheatley
| builder = NBR, Cowlairs
| builddate = 1869
| totalproduction = 2
| whytetype = {{whyte|2-4-0}}
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| gauge = {{track gauge|ussg}}
| leadingdiameter = {{convert|4|ft|0|in|mm|abbr=on}}
| driverdiameter = {{convert|6|ft|6|in|mm|abbr=on}}
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| fueltype = Coal
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| watercap = {{convert|1650|impgal|L|abbr=on}}
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| cylindercount = Two, inside
| cylindersize = {{convert|16|x|24|in|mm|0|abbr=on}}
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| operator = North British Railway
| operatorclass = 141
| powerclass =
| numinclass = 2
| fleetnumbers = 141, 164
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| withdrawndate = 1915
| scrapdate = 1923
| disposition = All scrapped
| notes = {{sfn|Baxter|2012|p=165}}{{sfn|Highet|1970|p=89}}{{sfn|SLS|1970|pp=62–63}}
}}The NBR 141 Class consisted of two steam {{whyte|2-4-0}} locomotives built by the North British Railway (NBR) in 1869. They were the direct antecedents of the NBR 224 Class {{whyte|4-4-0}}.{{sfn|Highet|1970|p=89}}
History
Thomas Wheatley became locomotive superintendent of the North British Railway (NBR) at the start of February 1867.{{sfn|SLS|1970|p=62}} During his tenure of seven years, he provided the NBR with 185 new locomotives;{{sfn|SLS|1970|p=62}} but only eight of these were suitable for hauling express passenger trains, the first two of which were these {{whyte|2-4-0}}s, nos. 141 and 164, which were built in 1869;{{sfn|SLS|1970|p=63}} the remaining six were the {{whyte|4-4-0}}s of the 224 and 420 Classes, introduced in 1871 and 1873 respectively.{{sfn|SLS|1970|pp=66–67}}
Originally the 141 Class had leading wheels of {{convert|4|ft|0|in|m}} diameter, coupled wheels of {{convert|6|ft|6|in|m}} diameter, and cylinders measuring {{convert|16|by|24|in|mm|0}}. The boilers were domeless, with the safety-valves mounted above the firebox. The frames were single, the driving wheel splashers had eight slots; there was no cab, but a weatherboard with two circular windows. The six-wheel tender held {{convert|1650|impgal|L}} of water. They were very good locomotives, and when the cylinder diameter was increased by {{convert|1|inch|mm}}, the performance was not adversely affected.{{sfn|SLS|1970|p=62}}{{sfn|Highet|1970|p=89}}
=Rebuilding=
On the NBR, locomotives were generally rebuilt when their boilers wore out.{{sfn|Boddy|Brown|Fry|Hennigan|1968|p=8}} Matthew Holmes, locomotive superintendent of the NBR between 1882 and 1903, rebuilt both locomotives in 1890; amongst the improvements were a domed boiler, Westinghouse brake and a cab.{{sfn|SLS|1970|p=63}}{{sfn|Baxter|2012|p=165}} In later years, no. 141 was used on trains between Glasgow and {{stnlnk|Dundee}}.{{sfn|SLS|1970|p=63}}
=Final years=
Every six months, the NBR renumbered some of its older locomotives into a "duplicate list", in order to vacate numbers for new construction.{{sfn|Boddy|Fry|Hennigan|Proud|1963|p=28}} Accordingly, in 1912, nos. 141 and 164 were placed on the duplicate list, becoming nos. 1158/60 respectively. They were both withdrawn from service in 1915 and scrapped in 1923.{{sfn|SLS|1970|p=63}}{{sfn|Highet|1970|p=89}}
Summary
| class=wikitable
!Original number !!Built !!Rebuilt !!Renumbered (year) !!Withdrawn | ||||
| 141 | 1869 | 1890 | 1158 (1912) | 1915 |
| 164 | 1869 | 1890 | 1160 (1912) | 1915 |
The locomotives may have been named after 1875 – it has been stated that Drummond, who replaced Wheatley in 1875, named NBR engines "including those already in service".{{sfn|Haresnape|Rowledge|1982|p=15}}
Notes
{{reflist|colwidth=20em}}
References
- {{cite book |last=Baxter |first=Bertram |editor1-last=Baxter |editor1-first=David |editor2-last=Mitchell |editor2-first=Peter |title=British Locomotive Catalogue 1825-1923, volume 6: Great Eastern Railway; North British Railway; Great North of Scotland Railway; Midland & Great Northern Joint Railway; Remaining Companies in the LNER Group |year=2012 |publisher=Kestrel Railway Books |location=Southampton |isbn=978-1-905505-26-5 }}
- {{cite book |last1=Boddy |first1=M.G. |last2=Fry |first2=E.V. |last3=Hennigan |first3=W. |last4=Proud |first4=P. |last5=Yeadon |first5=W.B. |authorlink5=Willie Yeadon |editor-last=Fry |editor-first=E.V. |title=Locomotives of the L.N.E.R., part 1: Preliminary Survey |date=July 1963 |publisher=RCTS |location=Potters Bar }}
- {{cite book |last1=Boddy |first1=M.G. |last2=Brown |first2=W.A. |last3=Fry |first3=E.V. |last4=Hennigan |first4=W. |last5=Manners |first5=F. |last6=Neve |first6=E. |last7=Tee |first7=D.F. |last8=Yeadon |first8=W.B. |authorlink8=Willie Yeadon |editor-last=Fry |editor-first=E.V. |title=Locomotives of the L.N.E.R., part 4: Tender Engines - Classes D25 to E7 |date=April 1968 |publisher=RCTS |location=Kenilworth |isbn=0-901115-01-0 }}
- {{cite book |last1=Haresnape |first1=Brian |last2=Rowledge |first2=Peter |title=Drummond Locomotives: A Pictorial History |date=October 1982 |publisher=Ian Allan |location=Shepperton |isbn=0-7110-1206-7 |id=DX/1082 }}
- {{cite book |last=Highet |first=Campbell |title=Scottish Locomotive History 1831-1923 |year=1970 |publisher=George Allen & Unwin |location=London |isbn=0-04-625004-2 }}
- {{cite book |title=Locomotives of the North British Railway 1846-1882 |year=1970 |publisher=Stephenson Locomotive Society |ref={{SfnRef|SLS|1970}} }}
{{Use dmy dates|date=July 2014}}
{{Use British English|date=July 2014}}
Category:Railway locomotives introduced in 1869