A.c.-d.c. dynamo electric machinery

Claim 1

IN COMBINATION, AN A.C.-D.C. DYNAMO ELECTRIC MOTOR HAVING RELATIVELY ROTATABLE ROTOR AND STATOR MEMBERS, DEFINING AN AIR GAP THEREBETWEEN, ONE OF SAID MEMBERS BEING AN ARMATURE HAVING A PLURALITY OF A.C. WINDINGS DISTRIBUTED THEREABOUT AND THE OTHER OF SAID MEMBERS HAVING A D.C. POLE CONFIGURATION MOUNTED THEREON IN COOPERABLE RELATION WITH SAID ARMATURE WINDINGS FOR TORQUE AND ENERGY EXCHANE ACROSS SAID AIR GAP UPON RELATIVE ROTATION OF SAID MEMBERS, AND MOTOR CONTROL MECHANISM COMPRISING A SET OF SENSE ELEMENTS MOUNTED ON SAID STATOR IN SPACED RELATION AROUND THE AXIS OF ROTATION OF THE ROTOR, AN ACTUATING ARM ON SAID ROTOR AND REVOLVABLE THEREWITH TO ACTUATE SAID SENSE ELEMENTS IN SEQUENCE TO PRODUCE FROM EACH SENSE ELEMENT A PULSELIKE CONTROL SIGNAL, AND A FREQUENCY GENERATOR UNIT HAVING A D.C. POWER TRANSFORMING CIRCUITRY CONNECTED TO SAID INPUT CIRCUIT AND CONNECTED TO APPLY A.C. VOLTAGE TO SAID ARMATURE WINDINGS AND CONTROL CIRCUITRY RESPONSIVE TO CONTROL SIGNALS FROM SAID SENSE ELEMENTS AND CONNECTED TO SAID POWER TRANSFORMING CIRCUITRY TO REGULATE THE FREQUENCY AND PHASE OF THE A.C. VOLTAGE, SAID CONTROL SIGNALS FROM SAID SENSE OPERABLE IN SEQUENCE BY CONTROL SIGNALS FROM SAID SENSE ELEMENTS IN ACCORDANCE WITH ROTOR SPEED AND ANGULAR POSITION TO SUPPLY SAID A.C. VOLTAGE WITH A WAVEFORM THAT IS SUBSTANTIALLY FULL WAVE AND THAT HAS A DOMINANT FUNDAMENTAL FREQUENCY THAT IS A CONSTANT INTEGER MULTIPLE OF ROTOR SPEED AND THAT HAS A PREDETERMINED TIME PHASE WITH RESPECT TO INSTANTANEOUS ANGULAR POSITION OF THE ROTOR.