Television sweep transformer with filament winding insulator

Claim 1

IN A HORIZONTAL SWEEP TRANSFORMER OF A TELEVISION RECEIVER OF THE TYPE HAVING A CORE AND A FILAMENT WINDING CONSISTING OF AT LEAST A SINGLE TURN WOUND AROUND THE CORE, THE IMPROVEMENT COMPRISING, A ONE PIECE INSULATOR FOR THE FILAMENT WINDING INCLUDING A FIRST ANNULAR FORM HAVING AN INTERNAL BORE DIMENSIONED TO ACCOMMODATE SAID CORE AND FURTHER HAVING A FIRST ANNULAR CHANNEL, A SECOND ANNULAR FORM HAVING AN INTERNAL BORE DIMENSIONED TO ACCOMMODATE SAID CORE AND FURTHER HAVING A SECOND ANNULAR CHANNEL OF SUBSTANTIALLY THE SAME CONFIGURATION AND DIMENSION AS SAID FIRST ANNULAR CHANNEL, SAID FIRST AND SECOND FORMS BEING NESTED TOGETHER TO DEFINE A DOUBLE-WALLED RACEWAY CAPTIVATING SAID FILAMENT WINDING AND TO DEFINE A CHANNEL THROUGH WHICH SAID CORE EXTENDS, AND A FLEXIBLE COUPLING BETWEEN SAID FIRST AND SECOND ANNULAR FORMS.