Rototherm Chrome Fahrenheit Desk Bimetallic Thermometer
A beautiful vintage Rototherm Chrome Fahrenheit Desk Bimetallic Thermometer. Having the chrome bezel, and rear chrome panel sensing and display dial, mounted onto a gloss finished chrome metal stand. A ‘must have’ item for the ‘man cave’, ‘she den’, study or office. It measures temperature in Fahrenheit.
The thermometer is in perfect working order and presents in pretty good cosmetic condition, although the chrome is quite pitted. The felt pad is missing off one of the plinth feet (see images).
The black dial is marked with British Patent 378314 and “The British Rototherm Co. Ltd London.”
Dimensions: 11cm (4.3″) Height x 11cm (4.3″ widest, including plinth)
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Some Trivia For You!
Rototherm invented the bimetallic thermometer in 1934. The thermometer has a metal pointer that moves up and down a circular scale. The pointer is mounted on a coiled piece of metal called a bimetallic strip. The hotter the temperature, the more the bimetallic strip expands, and the more it pushes the pointer up the scale.