Aneroid, Barographs, Barometers, Conservation, History of Aneroid Barometers, How do I repair an aneroid barometer, Pressure, Restoration, Vavasseur Antiques - Antique & Vintage Aneroid Barometers, Barographs & Other Scientific Instruments, Weather | August 8, 2023
August Work in Progress
Another fine instrument of particular interest, this large barograph is something quite special, and although unsigned, is undoubtedly the work of Negretti & Zambra. Let’s examine the evidence for this. First, the instrument is listed in the Negretti & Zambra catalogue of 1910 in the section Self-Recording Aneroid Barometers: item 82, a “Self-Recording Barometer, with a tall cylinder taking a...
Aneroid, Barographs, Barometers, Conservation, Featured, History of Aneroid Barometers, Restoration, Vavasseur Antiques - Antique & Vintage Aneroid Barometers, Barographs & Other Scientific Instruments, Weather | April 16, 2023
Significant Shipwrecked Mariners Society Award
Generally when these instruments are given as presentations it’s to a retired partner from a law firm or the winner of some golfing extravaganza - these additions add nothing to the value or interest in the piece, indeed in most instances the plates are removed, the holes filled and a part of ignominious history gently forgotten. The Shipwrecked Fishermen and...
Aneroid, Barographs, Barometers, Bourdon, Conservation, History of Aneroid Barometers, Pressure, Restoration, Vavasseur Antiques - Antique & Vintage Aneroid Barometers, Barographs & Other Scientific Instruments, Weather | March 31, 2023
March Work in Progress
Another fascinating instrument from the storeroom, and at last I can give it the attention it needs. This Negretti & Zambra barothermograph was absolutely filthy, caked in dust and grime, and working to a point but not much more. Nonetheless, I could see that this would come good with careful conservation techniques. I always start a project like this by...
Aneroid, Barographs, Barometers, Barometers in Action, Compasses, Conservation, History of Aneroid Barometers, How do I repair an aneroid barometer, Is my barometer working, Pressure, Restoration, Testing Barometers, Vavasseur Antiques - Antique & Vintage Aneroid Barometers, Barographs & Other Scientific Instruments, Weather | February 16, 2023
February Work in Progress
Many might wonder what might be next on Vavasseur Antiques. “Work in progress” is a constant state, since almost all the items we offer are comprehensively re-built, serviced, and/or benefit from conservation. Consequently through-put is sometimes slow. This does mean though that the things we offer are ‘proper,’ as described, and as original as possible, not the product of the...
Vavasseur Antiques - Antique & Vintage Aneroid Barometers, Barographs & Other Scientific Instruments | August 23, 2019
Testing Aneroid Barometers for Accuracy & Function
Aneroid barometers that have not been properly serviced and calibrated may be prone to one or more of the many common faults that are found and the oft-cited Plastic Bag Text is fallible. Buying an instrument that has not been properly checked is therefore a lottery.
Barographs, Barometers in Action, Weather | October 1, 2018
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