G - Physics – 05 – G
Patent
G - Physics
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G
142/8
G05G 7/00 (2006.01) F01D 17/20 (2006.01) F01D 21/00 (2006.01)
Patent
CA 1185145
ABSTRACT OF THE DISCLOSURE A governor control 1inkage assembly to be connected between the governor and a valve to be controlled by the governor such as the inlet valve for a steam turbine upstream from a venturi type safety trip valve therein in one preferred form with Woodward T.G.-10 governors has main lever arm connected at one end to the governor for actuation thereof and to the opposite end to a pivot arm on a fulcrum assembly which permits the pivot arm to be moved by a manually operable threaded assembly connected thereto so as to move the inlet valve from open to closed position and from closed to open position when the tur- bine is shut down to aid in the restarting thereof. In another preferred form with Woodward P.5. governors the governor control linkage assembly consists of an articu- lated lever wherein a main lever arm and a pivot arm are connected so that the main lever and pivot arm can be moved relative to each other by an interconnecting mall- ually operable threaded assembly to move the associated inlet valve from open to closed position and from closed to open position.The control linkage assemblies for the respective types of governors being operable essentially as shut-off devices to facilitate resetting of the asso- ciated safety trip valve with full line pressure at the steam chest and to be used as a manual control for restart- ing the turbine from the stopped position.
411062
Pascal Edward Eric
Turbodyne Operating Company
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