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Friedrich Haegele
Roman Haug
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Individual
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Individual
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Publication of GB190410889ApublicationCriticalpatent/GB190410889A/en
10,889. Hõgele, F., and Haug, R. May 11. Stopping p ip e s and tubes.-In order to isolate a section of steam or water piping, a screwed piecee, which normally holds a cut-off valve b open, is withdrawn. The valve is then forced on to its seat, and the passages g are closed by the pressure of the fluid, augmented, if necessary, by a spring d.
GB190410889D1904-05-111904-05-11Improvements in Cut-off Valves for Water and Steam Pipes.
ExpiredGB190410889A
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