Stepping motors and control means

Claim 1

A STEPPING MOTOR COMPRISING A STATOR, SAID STATOR HAVING FIRST AND SECOND ADJACENT COAXIAL POLE SECTIONS AND A COAXIALLY DISPOSED PERMANENT MAGNET INTERMEDIATE SAID POLE SECTIONS, FIRST AND SECOND LIKE PLURALITIES OF POLE PIECES EXTENDING INWARDLY OF SAID FIRST AND SECOND POLE SECTIONS, RESPECTIVELY, ARMATURE MEANS COAXIALLY DISPOSED WITHIN SAID STATOR AND SEPARATED FROM SAID POLE PIECES BY AN AIR GAP, A FIRST PLURALITY OF SUBSTANTICALLY SYMMETRICAL EVENLY SPACED TEETH ON THE PERIPHERY OF SAID ARMATURE MEANS ADJACENT SAID AIR GAP, A SECOND PLURALITY OF SUBSTANTIALLY SYMMETRIFAL EVENLY SPACED TEETH ON SAID PLE PIECES ADJACENT SAID AIR GAP, AND A PLURLATITY OF ENERGIZING WINDINGS ON SAID POLE PIECES WITH LIKE WINDINGS ON RESPECTIVE CORRESPONDING ONES OF SAID FIRST AND SECIND PLURALITIES OF SAID POLE PIECES; SAID ARMATURE BEING ADAPTED TO ASSUME AN EQUILIBRIUM POSITION WITH RESPECT TO SAID STATOR AND SAID FIRST AND SECOND PLURALITIES OF TEETH BEING ARRANGED SUCH THAT IN SAID EQUILIBRIUM POSITION THERE IS SUBSTANTIAL ALIGNMENT BETWEEN THE SAID TEETH ON PRESELECTED ONES OF THE POLE PIECES OF ONE OF SAID STATOR SECTIONS AND SAID TEETH ON SAID ARMATURE AND SUBSTANTIAL MISLIGNMENT BETWEEN THE SAID FITST AND SECOND PLURALITIES OF TEETH ON THE REMAINING POLE PIECES OF SAID ONE OF SAID STATOR SECTIONS AND ONE THE CORRESPONDING ONES OF SAID POLE PIECES ON THE OTHER OF SAID STATOR SECTIONS AND SUBSTANTIAL ALIGNMENT THEREOF ON THE SAID REMAINING POLE PIECES OF SAID OTHER OF SAID STATOR SECTIONS; AND SAID MOTOR INCLUDING MEANS ADAPTED TO SELECTIVELY APPLY DIRECT CURRENT ENERGIZATION TO THE ENERGIZING WINDINGS ON SAID PRESELECTED ONES OF SAID POLE PIECES AND CONSTRAIN SAID ARMATURE TO ASSUME SAID EQUILIBRIUM POSITION.