Direct current double air gap motor

Claim 1

A DIRECT CURRENT MOTOR COMPRISING A ROTOR INCLUDING A SUBSTASNTIALLY CYLINDRICAL CARRIER, A PLURALITY OF MULTIPLE LAYER WINDINGS EACH WINDING HAVING TURNS LYING IN DIAMETRICAL PLANES OF THE CARRIER AND WHOSE OPPOSITE SIDES ARE EMBEDDED THEREIN SO THAT THE OUTER TURNS ARE FLUSH WITH THE OUTER SURFACE OF THE CARRIER, AND A COMMUTATOR HAVING PAIRS OF DIAMETRICALLY OPPOSED CONDUCTIVE SEGMENTS, OPPOSITE ENDS OF EACH WINDING BEING CONNECTED EACH TO ONE SEGMENT OF ONE OF SAID PAIRS OF SEGMENTS, EACH SAID WINDING AND CONNECTED SEGMENTS OF THE COMMUTATOR SUBTENDING SUBSTANTIALLY THE SAME ANGLE OF ROTOR DISPLACEMENT, BRUSH MEANS ARRANGED TO CONTACT ONE OF SAID PAIRS OF SEGMENTS TO CONNECT THE SEGMENTS OF EACH PAIR OF A DIRECT CURRENT SOURCE DURING DISPLACEMENT OF THE ROTOR THROUGH SAID ANGLE, AND A FLUX CONDUCTING STATOR INCLUDING PERMANENT MAGNET MEANS, A CYLINDRICAL MEMBER AND A PAIR OF OPPOSED POLE PIECES HAVING CYLINDRICAL SURFACES EACH SUBTENDING AN ARC AT LEAST EQUAL TO THE SUM OF THE ARCS SUBTENDED BY TWO ADJACENT WINDINGS, SAID CYLINDRICAL MEMBER AND POLE PIECE CYLINDRICAL SURFACES BEING COAXIALLY POSITIONED TO DEFINE AN ANNULAR AIR GAP BETWEEN THEM, SAID CARRIER AND WINDINGS BEING DISPOSED IN AND ANGULARLY DISPLACEABLE THROUGH SAID AIR GAP, THE WIDTH OF SAID AIR GAP BEING LESS THAN THE SHORTEST DISTANCE BETWEEN SAID POLE PIECES TO REDUCE STRAY FLUX AND PROVIDE HOMOGENEOUS MAGNETIC FLUX FIELDS OF SUBSTANTIALLY CONSTANT FLUX DENSITY IN SAID AIR GAP BETWEEN EACH POLE PIECES AND THE CYLINDRICAL MEMBER, WHEREBY EACH SAID WINDING WHILE CONNECTED TO DIRECT CURRENT SOURCE THROUGH A PAIR OF COMMUTATOR SEGMENTS AND SAID BRUSH MEANS IS COMPLETELY INSIDE ONE OF SAID HOMOGENEOUS FLUX FIELDS DURING THE TOTAL TIME OF DISPLACEMENT OF THE ROTOR THROUGH SAID ANGLE.