Unusual Laboratory Vacuum Pump, Varley, Cornelius

English, c.1820, engraved to the pump housing 'VARLEY LONDON' teh Vacuum pump mounted on a polished wooden base with bun feet, with unusual pump mechanism similar in operation to a Tabel-type Steam Engine, crank handle is held in a rocking mount with a crank moving the piston up and down, pipework to brass base plate with glass bell jar with open top and brass hook, with pair of Magdenburgh hemispheres, base 34cm wide

Footnote: According to Clifton Cornelius Varley worked from 1810 and died 1873, he was a founding member of the Royal Microscopical Society and is famous for his microscope stage known as the Varley Stage

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