Turbine wobble-overspeed safety

Claim 1

A GAS TURBINE AND SINGLE PNEUMATIC CONTROL THEREFOR ADAPTED TO SHUT DOWN THE TURBINE IN EVENT OF ECCENTRIC TURBINE ROTATION AS A RESULT OF A BEARING FAILURE OR IN THE EVEN OF OVERSPEED OF THE TURBINE COMPRISED OF: A TURBINE WHEEL HAVING BLADES, SUPPORT MEANS INCLUDING BEARINGS, SUPPORTING SAID TURBINE WHEEL FOR NORMAL ROTATION IN A FIVED TRANSVERSE PLANE, INLET MEANS CONSTRUCTED AND ARRANGED TO SUPPLY GAS TO SAID TURBINE BLADES, A GAS SUPPLY PIPE CONNECTED TO SIAD INLET MEANS AND HAVING AN ON-OFF VALVE MOUNTED THEREIN, PNEUMATIC CONTROL MEANS FLUIDLY CONNECTED TO SAID GAS SUPPLY PIPE UPSTREAM OF SAID VALVE AND CONSTRUCTED TO OPEN SAID ON-OFF WHEN SUBJECT TO A PREDETERMINED-PRESSURIZED GAS FROM SAID GAS SUPPLY PIPE, ESCAPE MEANS OPERABLE BY ECCENTRIC ROTATION OF SAID TURBINE WHEEL CONNECTED TO SAID PNEUMATIC MEANS TO PROVIDE AN ESCAPE FLOW PATH FROM SAID PNEUMATIC MEANS, SAID PNEUMATIC MEANS BEING CONSTRUCTED TO CLOSE SAID ON-OFF VALVE WHEN SAID ESCAPE FLOW PATH IS PROVIDED AND A PREDETERMINED PRESSURE DROP RESULTS, SAID PNEUMATIC MEANS HAVING A VENT FLOW PATH DURING NORMAL OPERATION, A SPEED-RESPONSIVE MEANS OPERABLE TO CLOSE SAID VENT FLOW PATH WHEN SAID TURBINE WHEEL ROTATES ABOVE A PREDETERMINED SPEED, SAID PNEUMATIC MEANS BEING CONSTRUCTED TO CLOSE SAID ON-OFF VALVE WHEN SAID VENT FLOW PATH IS CLOSED AND A PREDETERMINED PRESSURE EXISTS WHEREBY SAID TURBINE IS PREVENTED FROM OVER-SPEEDING, SAID PNEUMATIC MEANS INCLUDING PISTON ACTUATOR CONNECTED TO SAID VALVE FOR THE OPENING AND CLOSING THEREOF, SAID PNEUMATIC MEANS INCLUDING SPOOL VALVE MEANS ARRANGED TO PASS GAS TO SAID PISTON ACTUATOR FOR OPENING AND FOR CLOSING SAID ON-OFF VALVE IN THE EVENT OF ECCENTRIC ROTATION OR OVERSPEED, AND SAID PNEUMATIC MEANS INCLUDING A FLOW-THROUGH PISTON ADAPTED TO BLOCK SAID VENT FLOW PATH IN COOPERATION WITH SAID SPOOL VALVE MEANS WHEN SAID ESCAPE MEANS PROVIDES AN ESCAPE FLOW PATH SO THAT SAID SPOOL VALVE OPERATES BY PRESSURE BUILD-UP TO EFFECT CLOSING OF SAID ON-OFF VALVE.