Electrical generator and devices for supplying electric current to lighting, air-conditioning and other apparatus

Claim 1

AN ELECTRIC VARIABLE RELUCTANCE TYPE INDUCTION GENERATOR FOR PRODUCING ALTERNATIVE CURRENTS, COMPRISING A STATOR; POLE SHOES ON SAID STATOR PROVIDED WITH SUBSTANTIALLY PARALLEL SLOTS; ARMATURE WINDINGS BEDDED IN SAID SLOTS; MAIN FIELD D.C. WINDINGS CARRIED BY SAID POLE SHOES; AND A ROTOR COAXIALLY REVOLVING WITHIIN SAID STATOR AND HAVING RADIAL POLAR TEETH SPACED BY POLAR GAPS, EACH ROTOR TOOTH BEING FORMED ON EITHER SIDE FACE THEREOF WITH AN ANGULAR SUBSTANTIALLY STRAIGHT-SIDED, DRAFT EDGED RECESS COEXTENSIVE WITH THE TOOTH FACE WIDTH IN A DIRECTION SUBSTANTIALLY PARALLEL WITH THE ROTOR AXIS, BOTH RECESSES BEING ARRANGED IN SYMMETRICAL RELATION TO EACH OTHER THEREBY DEFINING A CIRCUMFERENTIALLY ENLARGED POLAR TOOTH TIP PORTION PROVIDED WITH A PAIR OF SHARP-EDGED SIDEWISE PROJECTING POLE-HORNS OVERHANGING IN EACH CIRCUMFERENTIAL DIRECTION A PAIR OF REENTRANT DIHEDERAL-SHAPED TOOTH FLANKS RESPECTIVELY WHICH DIVERGE TOWARDS THE TOOTH ROOT AND THE DIHEDRAL DRAFT EDGES OF WHICH ARE LOCATED RELATIVELY CLOSE TO THE RADIALLY OUTER PERIPHERAL TIP FACE OF SAID TOOTH.