Rotary electric machines

Claim 1

THE ROTARY ELECTRIC MACHINE HAVING A COOPERATING ROTOR AND AN POLE-CHANGING THREE-PHASE WINDING FOR PROVIDING ALTERNATIVE POLE-NUMBERS IN A SELECTED NON-INTEGRAL RATIO, COMPRISING THREE PHASE-WINDINGS IDENTIFIED A, B, C, EACH PHASE-WINDING HAVING COILS CONNECTED TOGETHER FOR PROVIDING A FIRST NUMBER OF POLES, MEANS, INCLUDING NOT MORE THAN SIX SWITCHING LEADS BROUGHT OUT FROM SAID THREEPHASE WINDING, FOR CONNECTING TOGETHER SAID COILS IN AN ALTERNATIVE MANNER TO MODULATE THE RELATIVE AMPLITUDES OF SAID POLES ACCORDING TO THREE POLE-AMPLITUDE MODULATION WAVES APPLIED ONE TO EACH PHASE-WINDING IN SUBSTANTIALLY EQUAL SPACED-APART RELATIONSHIP, EACH SAID MODULATION WAVE SIMILARLY COMPRISING AT LEAST ONE CYCLE OF ALTERNATIVE POSITIVE AND NEGATIVE PARTS, SAID NEGATIVE PARTS CORRESPONDING TO THE CONNECTION OF SELECTED COILS IN REVERSE CURRENT-CARRYING SENSE RELATIVE TO THE COILS OF SAID POSITIVE PARTS, AND THE SEQUENCE OF SAID MODULATION WAVES, IDENTIFIED CORRESPONDINGLY AS THE PHASE-WINDING RELATED THERETO, BEING SELECTED FROM THE SEQUENCES A, B, C AND A, C, B.