{"product_id":"1930s-brass-rototherm-desk-thermometer-in-a-hexagonal-wood-surround-and-plinth","title":"1930s Brass Rototherm Desk Thermometer In A Hexagonal Wood Surround And Plinth","description":"\u003ch1\u003e 1930s Brass Rototherm Desk Thermometer In A Hexagonal Wood Surround And Plinth\u003c\/h1\u003e\n\u003cp\u003eThis is a lovely 1930s Brass Rototherm Thermometer In A Wood Surround. It has an easy to read dial showing the ‘freezing point’ temperature of 32 ºF, and measures from -20 to 140 ºF.\u003c\/p\u003e\n\u003cp\u003eMade by the British Rototherm Co. Ltd, London, England for Lister Diesel Engines, a company founded in 1867 and famous for their stationary steam and diesel industrial engines.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eBritish Patent Number 378314 (patent dating to 1932)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApproximate Dimensions\u003c\/strong\u003e:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBase Depth: 8.5 cm\u003c\/li\u003e\n\u003cli\u003eBase Width: 9.8cm \u003c\/li\u003e\n\u003cli\u003eHeight : 9 cm \u003c\/li\u003e\n\u003cli\u003eDiameter of thermometer face: 6cm \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA ‘must have’ item for the man cave, she den, study or office. It measures temperature in Fahrenheit and is encased in a typical hexagonal oak surround and plinth, allowing it to display nicely on a desk. \u003c\/p\u003e\n\u003cp\u003eThe bimetallic thermometer is in working order with a brass surround and black numerals. There are no cracks or restoration but there are a few surface blemishes commensurate with age and use. \u003c\/p\u003e\n\u003cp\u003eThe images have been taken with\/without flash and the wood is slightly darker than it appears in the photos.\u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp\u003ePlease click on the following link for more \u003ca href=\"https:\/\/mullard-antiques-and-collectibles.myshopify.com\/collections\/meterological-weather\" target=\"_blank\"\u003emeteorological and weather equipment.\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eBimetallic Thermometer\u003c\/h2\u003e\n\u003cp\u003eRototherm 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.\u003c\/p\u003e","brand":"Rototherm","offers":[{"title":"Default Title","offer_id":45380565893377,"sku":null,"price":0.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/files\/DSC09710.jpg?v=1720696950","url":"https:\/\/mullardantiques.co.uk\/en-us\/products\/1930s-brass-rototherm-desk-thermometer-in-a-hexagonal-wood-surround-and-plinth","provider":"Mullard Antiques and Collectibles","version":"1.0","type":"link"}