Drive and sensing means for ball gyroscope

Claim 1

IN A BALL GYROSCOPE: A BALL CONSTRUCTRED FOR MAGNETIC MATERIAL, FIRST INDUCTIVE MEANS COMPRISING AT LEAST ONE COIL CONTIGUOUS TO THE BALL AND ADAPTED TO BE CONNECTED TO A SOURCE OF A.-C. POWER; SECOND INDUCTIVE MEANS COMPRISING A PLURALITY OF COILS CONTIGUOUS TO AND SPACED ABOUT SAID BALL, THE COILS OF SAID SECOND INDUCTIVE MEANS BEING SUBSTANTIALLY IN QUADRATURE ELECTRICALLY WITH THE COIL OF SAID FIRST INDUCTIVE MEANS; A RESOLVER THE STATOR OF WHICH HAS A PLURALITY OF ARMS EACH OF WHICH IS CONNECTED BY A CONNECTING MEANS WITH A DIFFERENT COIL OF SAID SECOND INDUCTIVE MEANS AND A ROTOR A FIRST ARM OF WHICH IS ADAPTED TO BE CONNECTED TO SAID SOURCE OF A.-C. POWER AND A SECOND ARM OF WHICH IS CONNECTED TO A SERVO SYSTEM INCLUDING A MOTOR CONSTRAINED TO ROTATION WITH SAID ROTOR AND EFFECTING POSITIONING OF SAID ROTOT TO A NULL POSITION WHEREBY THE SPIN AXIS OF SAID BALL IS SENSED BY SAID SECOND INDUCTIVE MEANS AND COUPLED TO SAID RESOLVER DURING A SENSING PERIOD WHEN SAID FIRST INDUCTIVE MEANS IS ENERGIZED TO EFFECT POSITIONING OF SAID ROTOR SO THAT ROTATION IS IMPARTED TO SAID BALL WITHOUT CAUSING PRECESSION THEREAFTER DURING A DRIVING PERIOD WHEN BOTH SAID FIRST INDUCTIVE MEANS AND SAID ROTOR ARE ENERGIZED; SAID CONNECTING MEANS EFFECTING SAID DRIVING AND SENSING PERIODS; SAID CONNECTING MEANS COMPRISING AMPLIFIER MEANS AND TWO-POSITION SWITCHING MEANS, SAID SWITCHING MEANS IN A FIRST POSITION THEREOF CONNECTING SAID AMPLIFYING MEANS BETWEEN SAID STATOR AND SAIC COILS OF SAID SECOND INDUCTIVE MEANS WHILE CONNECTING SAID SOURCE OF A.-C. POWER TO SAID FIRST RESOLVER ARM TO DRIVE SAID BALL THROUGH SAID RESOLVER; SAID SWITCHING MEANS IN A SECOND POSITION THEREOF CONNECTING SAID COILS OF SAID SECOND INDUCTIVE MEANS DIRECTLY TO SAID STATOR WHILE CONNECTING SAID A.-C. POWER SOURCE TO SAID SERVO SYSTEM TO ENBLE SAID SERVO SYSTEM TO DRIVE SAID ROTOR TO A POSITION DEPENDENT UPON THE SPIN AXIS OF THE SAID BALL.