Dynamoelectric machine end turn insulation protection system

Claim 1

AN ELECTRICAL MEMBER FOR A DYNAMOELECTRIC MACHINE COMPRISING: A MAGNETIC CORE INCLUDING A NUMBER OF STACKED LAMINATIONS HAVING SLOTS DISPOSED THEREIN; COILS IN SAID SLOTS INCLUDING OVERLAPPING LAYERS OF ELECTRICALLY INSULATED END TURNS PROJECTING AXIALLY OUTWARDLY FROM SAID CORE AND PROVIDING THE WINDING THEREOF; A RIGID SUPPORT SYSTEM FOR RESTRICTING SAID END TURNS AGAINST SUBSTANTIAL DISPLACEMENT; AND AT LEAST ONE LAYER OF A LOW FRICTION PLASTIC SHEET MATERIALS DISPOSED BETWEEN THE OVERLAPPING LAYERS OF END TURNS, SAID SHEET MATERIAL HAVING ACTIVE SURFACES EXHIBITING A COEFFICIENT OF FRICTION LESS THAN ABOUT 0.2 AND BEING ARRANGED IN INTIMATE CONTACT WITH ADJACENT END TURN SURFACES AND EXTENDING ALONG AT LEAST THE MAJOR PORTION OF THE LENGTH THEREOF AND BEING CAPABLE OF WITHSTANDING A COMPRESSIVE FORCE OF ABOUT 500 P.S.I. AT THE MAXIMUM OPERATING TEMPERATURE OF SAID MACHINE WITHOUT HAVING THE ELASTIC LIMIT THEREOF EXCEEDED SO THAT A FINITE SEPARATION IS MAINTAINED BETWEEN THE ADJACENT SURFACES OF SAID END TURNS AND SAID SURFACES SLIDE FREELY AGAINST THE SURFACE OF SAID SHEET MATERIAL ESSENTIALLY FREE OF ANY ABRASION OF THE ELECTRICAL INSULATION.