Piece of glass in a dielectric insulator and electrical insulator by making use

摘要

Piece of glass in a dielectric insulation and electrical insulator by the application. / p & & p & work hardening of a dielectric in the glass object, such as a hollow body in the form of a skirt 2 surmounted of a head 1, the assembly being of revolution about an axis 10. / p & & p & a ring 5 of the internal cavity intermediate between the head 1 and the skirt 2 present notches anti - rotation without any sharp angles.