Control mechanism for two cut-off devices mounted in series
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United States of America Patent
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Jul 14, 1981
Grant Date -
N/A
app pub date -
Mar 10, 1980
filing date -
Mar 10, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A mechanism for controlling two rotatable cut-off devices which are mounted in series in a shell for connection to one and the same pipe, comprises a jack in respect of each cut-off device, each jack being articulated to a lever fast with a journal of a respective one of the cut-off devices and to the shell in the zone thereof supporting the journals of the other cut-off device. The invention is particularly applicable to the valves for protecting a hydraulic machine in a high-fall hydraulic power station.
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