Runner-controlled hydraulic turbines, pumps and propellers

Claim 1

A CONTROL AND INDICATING SYSTEM FOR ADJUSTING THE BLADES OF TURBINE, PROPELLER AND PUMP RUNNERS AND THE LIKE COMPRISING A RUNNER HAVING ADJUSTABLE BLADES MOUNTED THEREON, A TUBULAR DRIVE SHAFT SUPPORTING SAID RUNNER FOR ROTATION, A SERVOMOTOR IN SAID RUNNER INCLUDING A CYLINDER AND A FIRST PISTON MOVABLE IN SAID CYLINDER, MEANS CONNECTING SAID FIRST PISTON TO SAID BLADES FOR ADJUSTING SAID BLADES IN RESPONSE TO MOVEMENT OF SAID PISTON, A SLIDE VALVE IN AXIAL ALIGNMENT WITH AND OUTSIDE OF THE END OF SAID SHAFT REMOTE FROM SAID RUNNER, SAID SLIDE VALVE INCLUDING A VALVE PLUG MOVABLE RELATIVE TO SAID SHAFT AND A SLIDE VALVE SLEEVE SLIDABLY RECEIVING SAID PLUG AND MOVABLE RELATIVE TO SAID SHAFT AND SAID PLUG, CONDUITS EXTENDING LENGTHWISE IN SAID TUBULAR SHAFT AND HAVING PASSAGES CONTROLLED BY SAID PLUG AND SLEEVE CONNECTED TO SAID CYLINDER AT OPPOISTE SIDES OF SAID FIRST PISTON, SAID PLUG AND SLEEVE IN ONE RELATIVE POSITION PREVENTING FLOW OF FLUID THROUGH SAID PASSAGES, AND IN OTHER POSITIONS ADMITTING FLUID TO SAID CYLINDER ON ONE SIDE OF SAID FIRST PISTION AND DISCHARGING FLUID FROM THE CLYINDER ON THE OPPOSITE SIDE OF SAID FIRST PISTON TO MOVE SAID FIRST PISTON AND SELECTIVELY INCREASE AND DECREASE THE PITCH OF SAID BLADES, A SECOND PISTON CONNECTED TO SAID SLEEVE, A SECOND CYLINDER RECEIVING SAID SECOND PISTON SLIDABLY AND A SECOND VALVE OPERABLE IN ONE POSITION TO PREVENT FLOW OF FLUID TO SAID SECOND CYLINDER AND ACTUATABLE FOR SUPPLYING FLUID UNDER PRESSURE TO SAID SECOND CYLINDER TO MOVE SAID SLEEVE RELATIVE TO SAID PLUG, SAID CONDUITS FIXEDLY CONNECTING SAID FIRST PISTON TO SAID PLUG FOR MOVING SAID PLUG RELATIVE TO SAID SLEEVE TO SAID ONE POSITION TO CLOSE SAID PASSAGES.