George Tosh (1813–1900) was a

Scottish Scottish usually refers to something of, from, or related to Scotland, including: *Scottish Gaelic, a Celtic Goidelic language of the Indo-European language family native to Scotland *Scottish English *Scottish national identity, the Scottish ide ...

engineer and

metallurgist Metallurgy is a domain of materials science and engineering that studies the physical and chemical behavior of metallic elements, their inter-metallic compounds, and their mixtures, which are known as alloys. Metallurgy encompasses both the sc ...

who pioneered the use of steel in certain aspects of

steam locomotive A steam locomotive is a locomotive that provides the force to move itself and other vehicles by means of the expansion of steam. It is fuelled by burning combustible material (usually coal, oil or, rarely, wood) to heat water in the locomot ...

design.

Career

His earlier career is not known (his obituaries speak of an early association with the Stephensons and the

Stockton and Darlington Railway The Stockton and Darlington Railway (S&DR) was a railway company that operated in north-east England from 1825 to 1863. The world's first public railway to use steam locomotives, its first line connected collieries near Shildon with Darl ...

), but from children's birthplaces in census returns he was apparently resident in Newcastle by 1839, in Parton,

Cumberland Cumberland ( ) is a historic county in the far North West England. It covers part of the Lake District as well as the north Pennines and Solway Firth coast. Cumberland had an administrative function from the 12th century until 1974. From 19 ...

, during 1843–1848, and in Maryport by 1851. He became Locomotive Superintendent of the

Maryport and Carlisle Railway The Maryport & Carlisle Railway (M&CR) was an English railway company formed in 1836 which built and operated a small but eventually highly profitable railway to connect Maryport and Carlisle in Cumbria, England. There were many small collieries ...

(M&CR), in 1850 on the termination of the lease of the M&CR by the York, Newcastle and Berwick Railway and continued to serve in that capacity until 1870, becoming also Engineer to the Cockermouth and Workington Railway during its existence as an independent company. On leaving the Maryport & Carlisle Railway in 1870, he became the manager of the North Lincolnshire Iron Works.

Innovations

During his tenure at the Maryport & Carlisle Railway, Tosh was the first to use steel for construction of a locomotive boiler (in 1862), where previously

wrought iron Wrought iron is an iron alloy with a very low carbon content (less than 0.08%) in contrast to that of cast iron (2.1% to 4%). It is a semi-fused mass of iron with fibrous slag Inclusion (mineral), inclusions (up to 2% by weight), which give it a ...

had been the material of choice. The boiler/firebox was constructed by an outside contractor. It was not the first such design in the world – that accolade belonging to a Canadian locomotive, two years earlier – but it was certainly a first in Britain, and pre-empted the London & North Western Railway's developments of the technology. Tosh was also amongst the first railway engineers in the country to introduce coal-burning (rather than coke) fireboxes (ten of the M&CR's locomotives had been converted to burn coal by February 1859) and fitted the first steel-tyred wheels to British locomotives. Most of his engines had domeless boilers. Nineteen locomotives of various wheel arrangements were provided during his superintendency.

Family

He was married and had at least seven children; at least one of whom, Edmund George, after practising as an analytical chemist, followed his father's footsteps into the iron business.cultrans.com

Death

George Tosh died in 1900, in

Scunthorpe Scunthorpe () is an industrial town and unparished area in the unitary authority of North Lincolnshire in Lincolnshire, England of which it is the main administrative centre. Scunthorpe had an estimated total population of 82,334 in 2016. A pre ...

, Lincolnshire. His wife, Isabella, had died in 1868.

References

External links