VICTORIAN KEW PATTERN MARINE BAROMETER, BY ADIE, LONDON
LATE 19TH CENTURY
£819
Auction: Day 1
Description
the domed brass cap above glazed cylindrical silvered vernier scale calibrated in inches (26.4 to 32.5), engraved with a crown and numbered ‘B.T. 213’, then signed Adie, London, the patinated brass and black enamel cylindrical shaft with vernier adjustment screw and concealed-bulb mercury thermometer with ivory Fahrenheit scale above canister shaped cistern, mounted via centre brass gimbal
Dimensions
90cm high, 8cm wide
Footnote
Note: Patrick Adie, son of the renowned Scottish Instrument maker Alexander Adie (1775-1858) is recorded in Banfield, Edwin, ‘Barometer Makers and Retailers 1660-1900’ as working from several addresses in London 1846-86. In around 1855 Patrick Adie and John Welsh of the Kew Observatory worked together to develop an improved design of marine barometer. Their design incorporated a sealed iron cistern and the tube featured dampening constriction and Bunten air trap. The thermometer bulb is enclosed within the frame to measure the temperature of the mercury within the barometer tube, the outer brass case offered increased protection compared to earlier wooden cased models.
Sold in compliance with UK Government and APHA regulations, with (non-transferable) exemption registration reference V3PP3T2T
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