Method for winding magnetic cores

Claim 1

THE METHOD OF MAKING A WOUND TYPE CORE FROM MAGNETIC STRIP MATERIAL COMPRISING THE STEPS OF: PASSING SAID STRIP MATERIAL AROUND A GENERALLY CURVED MEMBER TO IMPART A PREDETERMINED VARYING BEND RADIUS CONTINUOUSLY ALONG SAID STRIP MATERIAL, WINDING A PLURALITY OF SUPERPOSED TURNS OF SAID STIP MATERIAL ON A ROTATABLE MEMBER IN A FIRST PREDETERMINED DIRECTION TO FORM A RINGSHAPED CLOSED CORE LOOP WHILE MAINTAINING THE TENSION IN SAID STRIP MATERIAL AT A VALUE IN EXCESS OF SUBSTANTIALLY A PREDETERMINED VALUE, THE BAND RADIUS ALONG SAID STRIP MATERIAL INCREASING WITH THE NUMBEROF TURNS WOUND ON SAID ROTATABLE MEMBER, THE RADIUS OF CURVATURE OF ANY TURN IN SAID RING-SHAPED CLOSED LOOP CORE EXCEEDING THE PREDETERMINED BEND RADIUS IMPARTED TO THAT PORTION OF THE STRIP MATERIAL, CUTTING THE END OF THE OUTERMOST TURN OF SAID STRIP MATERIAL, ROTATING SAID ROTATABLE MEMBER IN A DIRECTION OPPOSITE TO SAID FIRST PREDETERMINED DIRECTION WHILE SIMULTANEOUSLY RESTRAINING THE OUTER DIAMETER OF THE WOUND CORE TO SUBSTANTIALLY A PREDETERMINED VALUE LARGER THAN THE DIAMETER OF THE CORE AS FIRST WOUND TO OBTAIN A PREDETERMINED UNIFORM SPACE FACTOR IN SAID CORE SHAPING THE CORE TO A PREDETERMINED SHAPE HAVING YOKE AND LEG MEMBERS, AND ANNEALING SAID CORE TO RELIEVE STRESSES.