An inlaid mahogany case wheel barometer signed Oclee / Shefford. 220095

This is a decorative wheel or banjo barometer that is signed Oclee / Shefford, UK. Shefford is a small town located in the Bedfordshire, England. It is approximately 30 miles north of London.

This is a very attractive wheel barometer. The inlaid case is veneered in mahogany which has been recently refinished. As a result, the ebonized details and he light line inlay that frames the case contrast nicely with the warm glow of the mahogany base wood. This is a very pretty item. At the top of the case is a nicely formed swan’s neck pediment. The swan’s necks are treated with an ebonized finish and they center a single brass urn shaped finial. Below the pediment is the main body of the case. First is a hygrometer which theoretically measures humidity. This is designed to be a portable unit and is held in the case by a brass clip. The alcohol thermometer is positioned below the hygrometer. This is also designed to be portable. It is encased in glass and framed with a beaded molding. The scale is in Fahrenheit. The faceplate is fitted with a thermometer. “ Blood / Heat, Sumr / Heat, Tempe / rate, and Freez / ing” are markers on the thermometer along with their numerical values. Below this is a convex shaped circular mirror. This is framed with a molding that is made of concentric rings and is treated with an ebonized finish. The main dial is brass and has been silvered. The scale and decorations have been engraved into the front surface. These are fairly standard for this type of instrument. Two hands are necessary. The larger hand is connected to a brass pulley behind the dial. Inside the case, a silk cord is attached to a float and a counter balance. This cords wraps around a pulley that is attached to the hand. As the level of mercury in the tube changes, a float indicates this motion through this system on the front dial. The smaller brass hand is a marker and adjusts so that one can mark the position of the other hand each time the instrument is viewed. This is actuated with the bone knob located below the center dial. The dial is viewed through a convex piece of glass that is framed with a large brass bezel. At the bottom of the case is a level indicator. This is also engraved Oclee / Shefford. Turn the case around and a long hinged door provides access to the j-tube.

This working instrument was made circa 1860.

220095

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