Turbine control system for maintaining constant output torque

Claim 1

MEANS FOR CONTROLLING THE OUTPUT TORQUE OF A TURBINE WHEEL DRIVEN BY A STEAM OF MOTIVE FLUID, SAID CONTROL MEANS COMPRISING: (A) A MOVABLE MOUNTING MEANS ROTATABLY SUPPORTING SAID WHEEL, (B) SAID MOUNTING MEANS ADAPTED TO MOVE THE WHEEL, PERIPHERY INTO AND OUT OF THE MOTIVE FLUID STREAM AND THEREBY VARY THE MAGNITUDE OF THE TORQUE IMPOSED ON THE WHEEL BY THE MOTIVE FLUID STEAM, (C) MEANS CONNECTING THE WHEEL TOO A LOAD, (D) MEANS TRANSMITTING THE FORCES IMPOSED ON SAID CONNECTING MEANS BY THE LOAD TO SAID MOUNTING MEANS SUCH THAT THE NET EFFECT OF THE LOAD ON THE MOUNTING MEANMS IS PROPORTIONAL TO THE ACTUAL OUTPUT TORQUE OF SAID TURBINE WHEEL AND IN A DIRECTION TO MOVE SAID WHEEL TO DECREASE THE MAGNITUDE OF THE TORQUE IMPOSED ON SAID WHEEL BY THE FLUID STEAM. (E) AND MEANS IMPOSING A REFERENCE FORCE ON SAID MOVABLE MOUNTING MEANS SUCH THAT THE NET EFFECT OF THE REFERENCE FOORCE ON THE MOUNTING MEANS IS PROPORTIONAL TO A DESIRED OUTPUT TORQUE OF SAID WHEEL AND IN A DIRECTION TO MOVE SAID WHEEL TO INCREASE THE MAGNITUDE OF THE TORQUE IMPOSED ON SAID WHEEL BY THE FLUID STREAM, SAID MOUNTING MEANS BENG POSITIONED SOLELY BY THE NET EFFECT THEREON OF THE LOAD AND THE REFERENCE FORCE, (F) WHEREBY THE MOUNTING MEANS IS MOVED TO AN EQUILIBRIUM POSITION IN WHICH THE ACTUAL OUTPUT TORQUE OF SAID WHEEL IS EQUAL TO THE OUTPUT TORQUE SPECIFIED BY THE REFERENCE FORCE.