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Objects by: James Allan
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Reflecting Circle (2)
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Maker Info

James Allan

A memoir of a meeting appeared in The New Monthly Magazine, Vol 24 1828, of “…the late James Allan mathematical instrument maker in London, who died in the year 1821....Mr Allan was a native of the parish of Edinkillie, who procured to himself a considerable portion of fame by the discovery of several simple, but most accurate methods of graduating mathematical instruments.

.... In Nov 1800 James Allan is a shopman (?foreman) lately in the employ of the famous Jessie Ramsden receiving a legacy from Mr Ramsden of twenty pounds. It seems that Allan remained at the Piccadilly workshop, (which had been inherited by Matthew Berge from Jessie Ramsden,) and was in a position to operate independently. In Nov 1809 he presented to the Royal Society of Arts an improvement on the dividing machine created in 1775 by his former employer Jessie Ramsden.

reflecting circle with circumferenter

reflecting circle with circumferenter

James Allan
circa 1811
telescopic sight for Allan reflecting circle

telescopic sight for Allan reflecting circle

James Allan
circa 1811
/ 1

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