Mechanism including two cut-off devices in series
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United States of America Patent
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Jul 7, 1981
Grant Date -
N/A
app pub date -
Mar 10, 1980
filing date -
Mar 13, 1979
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A mechanism for a hydraulic pipe comprises two rotatable cut-off devices in series arranged inside two half-shells which are arranged symmetrically, relative to a mean transverse plane, and which are connected by being bolted together by their flanges. Each half-shell supports the journals of a cut-off device and an intermediate piece may be provided for supporting center gaskets. The mechanism is particularly applicable to the protection of turbines in a high-fall hydroelectric installation.
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