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Buy this image as a print
BuyLicense this image for commercial use at Science and Society Picture Library
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Buy this image as a print
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Science Museum Group Collection
© The Board of Trustees of the Science Museum
Science Museum Group Collection
© The Board of Trustees of the Science Museum
King's College, London| Enquiries to Science Museum, London
© The Board of Trustees of the Science Museum
Wedgwood pyrometer with two porcelain taper gauges, and porcelain test pieces, in a mahogany case, 1786.
This pyrometer was presented to King George III by Josiah Wedgwood, its inventor, in 1786. Wedgwood developed the instrument to measure the high temperatures used in firing pottery. As porcelain shrinks when fired, the shrinkage of small pieces of porcelain could be used to measure kiln temperature. The pieces were fired and then placed in the gauge.
One of two Wedgwood pyrometer porcelain taper gauges with porcelain test pieces in a mahogany case.
One of two Wedgwood pyrometer taper gauges, with four porcelain test pieces.
Two porcelain test pieces for Wedgwood pyrometer.
