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BellClocks News & Information — tendency barometer

Unique D&D Nautical Tendency Barometer, Great Gift Idea and On Sale Now!

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Unique D&D Nautical Tendency Barometer, Great Gift Idea and On Sale Now!

The D&D Barometers of Belgium A046 - Nautical Tendency Barometer with Thermometer - a unique instrument, and presentation quality. The Tendency Barometer was patented on December 23, 1818 by Alexander Adie. It consists of two liquid filled tubes. One tube in a U-shaped which is open ended and filled with a red, non-mercury fluid; and one closed thermometer tube filled with a blue fluid, mounted parallel to each other. When the fluid levels are the same, the weather is changing. When the red fluid level is below the blue fluid level, the weather is fair (high pressure pushes the red fluid down in the...

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D & D Barometer Ship's Hull Tendency Barometer is ON SALE!

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D & D Barometer Ship's Hull Tendency Barometer is ON SALE!

The D&D Barometers Ship's Hull Tendency Barometer with Thermometer is a very unique instrument! This nautical version of the Tendency Barometer consists of two liquid filled tubes.  The unique horizontal U-shaped barometer tube is open-ended and is filled with a red fluid.  The closed thermometer tube is filled with blue methyl alcohol.  Since both tubes are exposed to the same temperature, the only thing making the fluid levels different is the atmospheric pressure on the open-ended barometer tube.When the fluid levels are the same, the weather is changing.   When the red fluid level is to the left of blue fluid level, the weather is fair (high...

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Shop BellClocks.com Labor Day Sale today!

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Shop BellClocks.com Labor Day Sale today!

BellClocks.com Labor Day Sale is on Now! You work hard for your money and we want to help make your dollars buy more. Shop our Labor Day Sale and enjoy sale pricing on select Clocks, Watches, and Weather Instruments - PLUS enjoy $.01 shipping on every order regardless of order size! Our Labor Day Sale is a perfect time to freshen up your decor - or update your timepieces and weather instruments aboard your vessel, or at your waterfront retreat! Find a gift for graduation, house warming, or any occasion! During our Labor Day Sale you'll find great prices and...

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Featured Product: D&D Deluxe Tendency Barometer

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Featured Product: D&D Deluxe Tendency Barometer

D&D Barometers of Belgium A053 - Combination Tendency Barometer with Thermometer, Hygrometer and Stormglass.   The D&D A053 is a unique model, combining all of the best features of the Tendency Barometers and is the top of the line. It functionally operates as any other D&D Barometer tendency barometers. The beautiful mahogany stained wooden case with curved glass has an aluminum colored brass face plate with a Storm Glass mounted beside the tendency barometer tubes and a hygrometer mounted above the tubes. This is a dazzler. The Tendency Barometer was patented on December 23, 1818 by Alexander Adie. It consists...

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