Electric copper kettle, with immersed element, sectioned, c 1921

3504 × 2826 px | 1 MB

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UIS5090522

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Electric copper kettle, with immersed element, sectioned, c 1921

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Electric copper kettle, with immersed element, sectioned, c 1921. Sectioned to show element. This electric kettle (provisional patent no 33221/21) made by Bulpitt and Sons Ltd, Birmingham, was the first type of kettle to be fitted with a totally immersed heating element, doubling the efficiency of existing kettles. Earlier electric kettles had elements in a separate compartment in the bottom of the kettle, which wasted a lot of heat. This model has a traditional appearance and was used by middle class households. It was protected by patents until the mid-1930s. ©SSPL/Science Museum

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SSPL/UIG / Bridgeman Images

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	尺寸 [像素]	300dpi分辨率下的尺寸 [毫米]	文件大小 [MB]	在线购买
大型	3504 × 2826 px	297 × 239 mm	882 KB
中型	1024 × 826 px	87 × 70 mm	688 KB