Introducing another Stephen Lewin locomotive...

Introducing another Stephen Lewin locomotive…

The image below shows a delightful little locomotive named Samson. It was built by the Poole Foundry of Stephen Lewin in 1874 and was for a long time thought to be the first railway locomotive that they built. There is now some doubt about this fact, but regardless of this, it is certainly an early railway product for the firm.
It was supplied new to the London Lead Company’s Cornish Hush leadmine, Whitfield Brow near Frosterley. Often erroneously stated as working in Middleton-in-Teesdale (where the firm actually had its headquarters) the engine operated over a mile long tramway between the mine and the crushing plant. The mine leases were surrendered in 1883 and the 1898 OS map for the area (second edition) shows the crushing mill closed and the tramway abandoned. The London Lead Company was wound up in 1905. It seems that the locomotive itself was sold, presumably for scrap, and removed via the NER’s Middleton-in-Teesdale station in 1905, suggesting it had been removed to the headquarters for storage after the tramway closed.
The engine therefore enjoyed only a short working life. It is of particular note because of its unusual design, being an ‘overtype’ with cranshaft and flywheel drive. This is very much along traction engine or portable engine lines. Lewins built other engines to this pattern (notably ‘Hops’ and ‘Malt’ for the Guiness brewery) but it was not a common practice in railway locomotive design.
Samson was 1ft 10inch gauge and of very tiny proportions, as can be seen here. It was said to weigh 2 tons 12cwt and attracted some interest in the contemporary technical press, resulting in two engravings being produced showing it, though the detail accuracy of these must be doubted in some regards. However, unlike some of the other smaller Lewin locomotives, which were fitted with marine type fireboxes, this engine appears to have a locomotive boiler. The far side (not shown in the photograph) would appear to have external gears on the wheels (front and rear), connecting with the drive via layshafts off the crankshaft. These were enclosed for safety.
Samson would certainly make an interesting subject for replication for use on our new narrow gauge railway…