Process for insulating an electric coil

Claim 1

THE PROCESS FOR INSULATING AN ELECTRIC COIL COMPRISING THE STEPS OF PLACING AN INSULATING COMPOUND BETWEEN ADJACENT STRANDS COMPRISING THE LEADS EXTENDING OUTWARDLY FROM THE COIL BODY, APPLYING AN INITIALLY VISCOUS INSULATION ON THE CONCAVE SIDES OF THE COIL END TURNS TO FORM A CONVEX SURFACE, WRAPPING A GROUND INSULATION ON THE CONDUCTOR SURFACES OF THE COIL, APPLYING HEAT AND MECHANICALLY EXERTING PRESSURE TO THE SIDES OF THE SLOT PORTIONS OF THE COIL FOR OBTAINING PARTIAL CURING OF THE INSULATION AND BONDING OF THE LAYERS OF INSULATION TO EACH OTHER AND TO THE CONDUCTOR SURFACE, ENCLOSING THE COIL IN A CLOSED VESSEL, AND SUBJECTING THE INSULATED COIL THEREIN TO A PRESSURE AND TEMPERATURE SUFFICIENT TO OBTAIN THE APPLICATION OF FORCE TO THE INSULATION ON THE END PORTIONS OF THE COIL, AND SUBJECTING THE COIL TO AN INSULATION CURING TEMPERATURE THEREBY OBTAINING CURING OF THE INSULATION.