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Clocks & Scientific Instruments/Barometers - 15 result(s)

The word ‘aneroid’ derives from the Greek meaning ‘without liquid’. Consequently, the aneroid barometer is virtually trouble free in comparison to the mercury barometers which, due to their open end glass tubes filled with mercury, are notoriously difficult to transport.
Nicolas Conté invented the aneroid barometer in 1798 but it wasn’t until 1844 that Lucien Vidi’s design was patented by Pierre Armande La Conte de Fontainemoreau (no. 10157). Further development soon made the aneroid barometer the standard type of barometer used on ships, in the home, and in mountaineering. In 1851 Vidi’s barometer was awarded a Council Medal at the Great Exhibition in London. (Mike Jukes - Antiques Dealer at Hemswell)

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Aneroid Movement Barometer - Click for details
Aneroid Movement Barometer in an Oak Case with Mercury Thermometer Circa 1900
Dim: W-26 H-88 (cm)
Price: £285.00
   
Aneroid Movement Barometer - Click for details
Aneroid Movement Barometer in an Oak Case with Silvered Dial and Mercury Thermometer
Dim: W-30 H-88 (cm)
Price: £325.00
   
Aneroid Barometer - Click for details
Aneroid Barometer with Open Enamel Dial in a Turned Mahogany Case Circa 1910
Dim: W-18 D-6 (cm)
Price: £55.00This item has been sold
   
Edwardian Inlaid Barometer - Click for details
Edwardian Inlaid Barometer
Dim: W-20.5 D-4 H-25 (cm)
Price: £75.00This item has been sold
 
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Inlaid Mahogany Barometer - Click for details
Inlaid Mahogany Barometer with Star and Shell Decoration by Rattray of Dundee.
Dim: W-26 H-90 (cm)
Price: £250.00This item has been sold
   
Victorian Aneroid Barometer - Click for details
Victorian Aneroid Barometer in Mahogany Case with Silvered Dial. Working Order. F. Robson & Co. Opticians Newcastle-on-Tyne.
Dim: W-23.5 D-7 (cm)
Price: £120.00This item has been sold
   
Aneroid Barometer Thermometer Clock Combination - Click for details
Aneroid Barometer Thermometer Clock Combination in a Continental style Carved Oak Case. 8-Day Movement. The Clock is fitted with a Four Jewel Platform Escapement and Enamel Dial. Circa 1875.
Dim: W-26 H-69.5 (cm)
Price: £490.00
   
Edwardian Carved Oak Barometer - Click for details
Edwardian Carved Oak Barometer with Aneroid Movement. Circa 1910.
Dim: W-30 H-89 (cm)
Price: £275.00This item has been sold
 
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Edwardian Inlaid Mahogany Aneroid Barometer - Click for details
Edwardian Inlaid Mahogany Aneroid Barometer. Circa 1900.
Dim: W-27.5 H-87 (cm)
Price: £195.00
   
Fine 19th Century Wheel Barometer - Click for details
Fine 19th Century 12inch Dial Wheel Barometer in Mahogany Case with Presentation Plaque (1945). Circa 1870.
Dim: W-37 H-118 (cm)
Price: £595.00
   
19th Century Mahogany Wheel Barometer - Click for details
19th Century Mahogany Wheel Barometer in Unrestored Condition by Nestaglic of Newcastle 1835
Dim: W-32 H-108 (cm)
Price: £375.00
   
Regency Stick Barometer by Dollond of London - Click for details
Regency Stick Barometer by Dollond of London. Mahogany Cistern Barometer with Scroll Pediment and Shallow Turned Cistern Cover. Silvered Plate Scale with Glazed Door.
Dim: H-99 (cm)
Price: £1975.00
 
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Architectural Aneroid Barometer with Porcelain Dial - Click for details
Architectural Aneroid Barometer with Porcelain Dial with Mercury Thermometer.
Dim: H-108 (cm)
Price: £290.00This item has been sold
   
Good Barometer in Mahogany with Satinwood Stringing - Click for details
Good Barometer in Mahogany with Satinwood Stringing. C. 1850.
Dim: H-100 (cm)
Price: £570.00
   
Barometers - Click for details
Thank you for searching for Barometers. If you type in 'Barometer' this will produce many more items. This piece has been sold.
     
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Aneroid mechanisms are inherently robust and have a notable longevity as demonstrated by the many early barometers that are still accurately functioning today. The standard mechanism of an aneroid barometer consists of a flexible evacuated capsule held apart by an external spring. With changes in atmospheric pressure the capsule will expand or contract creating a movement of the spring. This movement is transmitted through linkages to produce rotation of a spindle to which an indicating hand is attached. When the barometer is set up the indicating hand shows the atmospheric pressure at sea level.
The barometer readings will vary at different heights above sea level measures due to the changes in pressure. Thus, if it were taken to a higher altitude it would read a lower pressure and vice versa. The barometer is set up by use of a screw on the rear of the instrument. Turning this screw causes the indicating needle to move around the dial allowing it to be set to the sea level atmospheric pressure.
Although weather conditions are controlled by a combination of atmospheric pressure, humidity, wind direction and temperature a definite trend in the weather can be obtained from an aneroid barometer. The setting hand should be placed over the indicating hand by using the knob in the centre of the glass face. If, after a period of time (normally several hours), the indicating hand has moved away from the setting hand the weather trend can be read from the dial. If no movement has occurred then the barometer indicating needle shows the prevailing weather conditions. (Mike Jukes - Antiques Dealer at Hemswell)