A Crampton locomotive is a type of steam locomotive designed by Thomas Russell Crampton and built by various firms from 1846. The main British builders were Tulk and Ley and Robert Stephenson and Company.
Notable features were a low boiler and large driving wheels. The crux of the Crampton patent was that the single driving axle was placed behind the firebox, so that the driving wheels could be very large. This helped to give this design a low centre of gravity, so that it did not require a very broad-gauge track to travel safely at high speeds. Its wheel arrangement was usually 4-2-0 or 6-2-0.
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Because the single driving axle was behind the firebox, Crampton locomotives usually had outside cylinders. However, some inside cylinder versions were built using indirect drive, then known as a jackshaft. The inside cylinders drove a crankshaft located in front of the firebox and the crankshaft was connected to the driving wheels by outside rods. Some long-wheelbase 0-4-0 tank locomotives were also built using this crankshaft system. The boiler feed-pump was often driven from the crankshaft as well because many Cramptons were built before the injector was invented.
Another peculiarity on some Crampton locomotives was the use of a boiler of oval cross-section, to lower the centre of gravity. It would nowadays be regarded as bad engineering practice because the internal pressure would tend to push the boiler into a circular cross-section and increase the risk of metal fatigue.
Crampton locomotives were used by some British railways and speeds of up to 120km/h (75mph) were achieved on the LNWR. They were more popular in France, southern Germany and the US. In France the expression "prendre la Crampton" meant to catch an express. One of the French examples has been preserved in the Cité du Train (the French Railway Museum) at Mulhouse and is still in working order. This is number 80 of the Chemin de Fer de l'Est, the Paris-Strasbourg line, which is named "Le Continent".
Approximate numbers of Crampton-type locomotives built in Europe were:
Below is a list of British-built Crampton locomotives:
Built by: Tulk and Ley, all of 4-2-0 wheel arrangement:
Date built | Works no. | Railway | Name/no. | Notes |
---|---|---|---|---|
1846 | 10 | Namur and Liege Railway | Namur | (1) |
1846 | 11 | Namur and Liege Railway | Liege | (1) |
1847 | 12 | LNWR | 200 London | (2)(3) |
1847 | 14 | D&P&AJR | Kinnaird | (4) |
1847 | 13 | South Eastern Railway | 81 | |
1847 | 15 | South Eastern Railway | 83 | |
1847 | 16 | South Eastern Railway | 85 | |
1854 | 17 | Maryport and Carlisle Railway | 12 |
Notes
Built by: Robert Stephenson and Company
Robert Stephenson and Company built a number of Crampton type locomotives for the South Eastern Railway and the London, Chatham and Dover Railway. These were all of 4-2-0 wheel arrangement with inside cylinders and indirect drive. The inside cylinders drove a crankshaft located in front of the firebox and the crankshaft was coupled to the driving wheels by outside rods.
Date built | Works no. | Railway | No./Name | Notes |
---|---|---|---|---|
1851 | 785 | South Eastern Railway | 134 | |
1851 | 786 | South Eastern Railway | 135 | |
1851 | 787 | South Eastern Railway | 136 Folkstone | (1) |
1851 | 788 | South Eastern Railway | 137 | |
1851 | 789 | South Eastern Railway | 138 | |
1851 | 790 | South Eastern Railway | 139 | |
1851 | 791 | South Eastern Railway | 140 | |
1851 | 792 | South Eastern Railway | 141 | |
1851 | 793 | South Eastern Railway | 142 | |
1851 | 794 | South Eastern Railway | 143 | |
1851 | Prussian Eastern Railways | England[2] | ||
1851 | Prussian Eastern Railways | |||
1851 | Prussian Eastern Railways | |||
1851 | Prussian Eastern Railways | |||
1851 | Prussian Eastern Railways | |||
1851 | Prussian Eastern Railways | |||
1862 | 1381 | London, Chatham and Dover Railway | Coquette | (2) |
1862 | 1382 | Echo | ||
1862 | 1383 | Flirt | ||
1862 | 1384 | Flora | ||
1862 | 1385 | Sylph |
Notes:
Built by: Bury, Curtis, and Kennedy, all 4-2-0 except Liverpool which was 6-2-0.
Date built | Works no. | Railway | No./Name | Notes |
---|---|---|---|---|
1848 | 355 | LNWR | Liverpool | (1) |
1848 | ? | South Eastern Railway | 68 | |
1848 | ? | South Eastern Railway | 69 | |
1848 | ? | South Eastern Railway | 72 | |
1848 | ? | South Eastern Railway | 74 | |
1848 | ? | South Eastern Railway | 75 | |
1848 | ? | South Eastern Railway | 78 |
Built by: E. B. Wilson and Company
Date built | Works no. | Railway | Name/no. | Notes |
---|---|---|---|---|
1847 | ? | North British Railway | 55 | (1) |
1847 | ? | Eastern Counties Railway | 108 | |
1847 | ? | Eastern Counties Railway | 109 | |
1847 | ? | Eastern Counties Railway | 110 | |
1847 | ? | Eastern Counties Railway | 111 | |
1847 | ? | Eastern Counties Railway | 112 | |
1847 | ? | Aberdeen Railway | 26 | |
1847 | ? | Aberdeen Railway | 27 |
Built by: R and W Hawthorn 4-4-0ST
Date built | Works no. | Railway | Name/no. | Notes |
---|---|---|---|---|
1857 | - | East Kent Railway | 62 Lake | (1) |
1857 | - | East Kent Railway | 59 Sondes | (1) |
1858 | - | East Kent Railway | 63 Faversham | (1) |
1858 | - | East Kent Railway | 64 Chatham | (1) |
1858 | - | East Kent Railway | 61 Crampton | (1) |
1858 | - | East Kent Railway | 63 Faversham | (1) |
Built by: various builders
Builder | Date built | Works no. | Railway | Name/no. | Notes |
---|---|---|---|---|---|
Nasmyth, Gaskell and Company | 1846 | ? | South Eastern Railway | 92 | (1) |
Crewe Works | 1847 | ? | LNWR | Courier | |
Kitson and Company | 1848 | ? | Midland Railway | 130 | |
Kitson and Company | 1848 | ? | Midland Railway | 131 | |
Timothy Hackworth | 1848 | ? | LB&SCR | 56 | |
Timothy Hackworth | 1848 | ? | LB&SCR | 58 | |
A. Horlock & Co. | 1848 | Padarn Railway | Fire Queen | (2) | |
A. Horlock & Co. | 1848 | Padarn Railway | Jenny Lind | ||
1848 | Chemin de fer du Nord | ||||
R. B. Longridge and Company | 1851 | ? | Great Northern Railway | 200 | (3) |
1855 | Chemins de fer de Paris à Lyon et à la Méditerranée | (4) | |||
1855 | Chemin de fer du Nord | 162 Alma | (5) | ||
Maschinenbaugesellschaft Karlsruhe | 1863 | Baden State Railway | Phoenix | (6) |
Notes: