Axial air gap motor

Claim 1

IN AN AXIAL AIR GAP POLYPHASE INDUCTION MOTOR COMPRISES OF AT LEAST ONE STATOR HAVING POLYPHASE WINDING MEANS COMPRISED OF FRACTIONAL-PITCH COILS COMPRISED OF TURNS OF WIRE RECEIVED IN EACH OF A PLURALITY OF RADIAL SLOTS IN SAID STATOR, SAID STATOR BEING AXIALLY SPACED BY A GAP FROM A ROTOR AND BEING RESPONSIVE TO CURRENT ENERGIZATION OF SAID WINDING MEANS TO PRODUCE A MAGNETIC FIELD ROTATING IN SAID GAP, AND SAID ROTOR BEING RESPONSIVE TO SAID FIELD TO UNDERGO ROTATION, IN COMBINATION WITH SAID MOTOR THE IMPROVEMENT COMPRISING AN ELECTRICAL CONNECTION OF THE TURNS OF WIRE IN THE SLOTS IN SAID STATOR INTO DIFFERENT PHASE GROUPS OF WHICH THE TURNS WHICH CONSTITUTE EACH GROUP ARE SPREAD OVER CONSECUTIVE SLOTS AND HAVE A VARIABLE DISTRIBUTION AMONG SAID CONSECUTIVE SLOTS WITH RESPECT TO THE NUMBER OF TURNS OF WIRE IN EACH SLOT, EACH SUCH VARIABLE DISTRIBUTION BEING CHARACTERIZED BY A LESSER NUMBER OF TURNS PER PHASE PER SLOT IN SLOTS AT THE ENDS OF SAID DISTRIBUTION THAN IN SLOTS INTERMEDIATE THOSE END SLOTS, AND THE VARIABLE DISTRIBUTION OF TURNS PER SLOT WITHIN EACH SUCH GROUP AND THE FRACTIONAL-PITCH OF SAID COILS TOGETHER PROVIDING FOR M.M.F. HARMONICS IN SAID FIELD ON OVERALL PITCH FACTOR LESS THAN THE INDIVIDUAL PITCH FACTOR PROVIDED BY THE FRACTIONAL COIL PITCH.