Barometers

A barometer is a scientific instrument used to measure changes in atmospheric pressure, these changes then used to predict the likely weather. Barometers are divided into two main categories; mercurial and aneroid.

Mercurial is the oldest in design and based on the work of Evangelista Torricelli (1608-47) who invented a barometer using a glass tube with its top end sealed and filled with mercury.

Aneroid barometers were invented by Lucien Vidie in 1842 and operated without mercury, making them more compact and portable. During the late 19th century miniature versions were made, suitable for carrying in a pocket.


Clock sales tick over but achieve good selling rates

02 February 2004

The pre-Christmas horological sales were lower key than those traditionally seen in the London rooms at this time of year. With the continuing problem of sourcing enough good material, few top names were on offer to tempt the serious collector, and the general mixed sales which resulted provided some good-value purchases for buyers further down the scale.

Clocks, Watches and Barometers sale

02 October 2001

Sotheby’s 236-lot Clocks, Watches and Barometers sale was the largest of the three held on September 20. Timed to capitalise on the recent opening of the Olympia saleroom, it brought £417,645 and was 73 per cent taken up by lot. This small olivewood marquetry longcase clock, c.1680, 7ft 6in (2.15m), by Joseph Knibb, stole the limelight.

Clock clean reveals a fine feat of Clay

12 February 2001

UK: SOTHEBY'S Barometers and Clocks sale at Billingshurst on February 1 was one of the few areas where Joe Marshall’s treasures did not make a showing but expert-in-charge Jonathan Hills happily remarked on the current strength of the market across the board for horology.

Mahogany wheel-shaped barometer

10 July 2000

UK: JOHN Russell of Falkirk was a barometer maker to the Prince Regent and, as a result, this mahogany wheel-shaped example with the Prince of Wales feathers commanded considerable interest from leading London dealers at Woolley and Wallis’s Salisbury salerooms on July 4.

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