Joint structure for three-legged laminated core

Claim 1

A THREE-PHASE MAGNETIC CORE STRUCTURE HAVING FOUR OUTER SIDES COMPRISING A PLURALITY OF STACKED LAYERS EDGEWISE COINCIDENT IN ALL FOUR OUTER SIDES OF THE CORE STRUCTURE, EACH OF SAID LAYERS INCLUDING AT LEAST ONE SHEET OF ASSEMBLED LAMINATIONS, EACH SHEET IN EACH LAYER BEING IDENTICAL AND CONSISTING OF SEVEN LAMINATIONS COMPRISING THREE PARALLEL LEG LAMINATIONS INCLUDING TWO OUTER LEG LAMINATIONS AND A MIDDLE LEG LAMINATION, AND FOUR YOKE LAMINATIONS INTERCONNECTING SAID LEG LAMINATIONS TO FORM TWO RECTANGULAR WINDOWS WITH JOINTS BETWEEN ADJOINING LAMINATIONS, ONE OF SAID OUTER LEG LAMINATIONS BEING IDENTICAL IN SHAPE TO SAID MIDDLE LEG LAMINATION AND DIFFERENT IN SHAPE FROM THE OTHER OF SAID OUTER LEG LAMINATIONS, TWO OF SAID YOKE LAMINATIONS ADJOINING SAID ONE OUTER LEG LAMINATION BEING IDENTICAL IN SHAPE TO EACH OTHER, THE OTHER TWO OF SAID YOKE LAMINATIONS ADJOINING SAID OTHER OUTER LEG LAMINATION BEING IDENTICAL TO EACH OTHER AND DIFFERENT IN SHAPE FROM THE FIRST NAMED TWO YOKE LAMINATIONS WHEREBY THERE IS A TOTAL OF FOUR DIFFERENTLY SHAPED LAMINATIONS IN SAID CORE STRUCTURE, THE JOINTS IN EACH OF SAID SHEETS BETWEEN EACH OF SAID OUTER LEG LAMINATIONS AND SAID ADJOINING YOKE LAMINATIONS AND BETWEEN THE MIDDLE LEG LAMINATION AND THE FIRST NAMED TWO OF SAID YOKE LAMINATIONS EACH INCLUDING A MINOR PORTION PREPOENDICULAR AND A MAJOR PORTION AT AN ANGLE OF 45 DEGREES TO THE LONGITUDINAL AXIS OF ONE OF THE ADJOINING LAMINATIONS FORMING THE JOINT, THE JOINTS BETWEEN THE MIDDLE LEG LAMINATION AND SAID OTHER TWO OF SAID YOKE LAMINATIONS BEING STRAIGHT LINE JOINTS PARALLEL TO THE LONGITUDINAL AXIS OF THE MIDDLE LEGS LAMINATION, SAID FIRST YOKE LAMINATIONS LAMINATIONS ALSO FORMING STRAIGHT LINE JOINTS WITH SAID OTHER TWO YOKE LAMINATIONS, RESPECTIVELY, ALTERNATE LAYERS OF SAID CORE STRUCTURE BEING REVERSED WITH RESPECT TO THE OTHER LAYERS WITH EACH OF THE JOINTS IN EACH LAYER BEING BRIDGED BY A LAMINATION IN AN ADJACENT LAYER.