Abstract: Method of producing a rod anchoring structure particularly for use in high tension insulators. It comprises an assembly of a rod in an anchoring fixing. The end of the rod is fitted with a surrounding double ended wedge element having a neck and flaring in both directions along the rod away from the neck. This wedge element is then jammed in the anchoring fixing, either by deforming a sleeve tightly around the wedge element or by winding a filament tightly around it.

Abstract: Method for fixing a connecting cap (4) on a non-metallic part (1) by molding of the metal or alloy of the connecting cap in the melted state on the outer surface of the non-metallic part. One or several metallic parts closely applied more particularly a sleeve (2) or a ring, is arranged at least on a part of that outer surface.

Abstract: The invention relates to the manufacturing of suspension insulators of the type comprising essentially a body made of a dielectric material, a metallic cap and rod sealed to said body. The method according to the invention is characterized in that during sealing of the rod in the inner cavity of the body and of the cap on the body head, said body rests on a supporting table and undergoes by vibropercussion a vertical vibrating motion superimposed on a tilting motion with a rotating axis of tilt, said supporting table remaining isolated from the vibrations during the whole sealing operation. Application in particular to the manufacturing of heavy insulators for electric power lines.