Alexander Allan (locomotive engineer).html

 
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Alexander Allan was born at Montrose, Angus, Scotland. From 1843 to 1853 he was Works Manager at the Crewe Works of the Grand Junction Railway, later London and North Western Railway, under Francis Trevithick. From 1853 to 1865 he was Locomotive Superintendent of the Scottish Central Railway. Allan was an original member of the Institution of Mechanical Engineers in 1847.

Inventions

Allan made a number of inventions, including a balanced slide valve, but the best-known is his straight-link valve gear of 1855.

See also

Sources

Preceded by
Position created
Chief Mechanical Engineer of Highland Railway
1854-1865
Succeeded by
William Stroudley
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