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Expired
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NORMA CIE GmbH
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NORMA CIE GmbH
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Application filed by NORMA CIE GmbHfiledCriticalNORMA CIE GmbH
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Publication of GB190827245ApublicationCriticalpatent/GB190827245A/en
27,245. Norma Cie, and Kirner, J. Dec. 15. Pyrometers.-A fusible substance 1, 2 in U-tubes &c. 3, 4 is arranged, on melting, to pulsate under the influence of the varying air pressure produced by a reciprocating plunger 8, and, these pulsations are arranged to cause a similar movement in indicating-liquids 6, 7. Two different substances may be used, so chosen that one shows when the desired minimum is reached or exceeded, while the other shows when the maximum is reached. The tubes 3, 4 may be held in a protective U-tube.
GB190827245D1908-12-151908-12-15Improvements in or relating to Pyrometers.
ExpiredGB190827245A
(en)