Improvements in the manufacture of closures for bottles containing gaseous beverages. (Machine-translation by Google Translate, not legally binding)

摘要

Improvements in the closures for bottles containing soft drinks, characterized in combination in that the bottle has a neck configured with an annular flange that extends outwardly distanced below the upper end of said neck of the bottle and in which the stopper, shaped like a bottle mushroom, has a tubular stem that is inserted inside the neck of the bottle, said stopper having a head formed with a flange, which extends outwards in a downward direction, constituting a lower annular groove surrounded by said flange, projecting the upper end of said bottle neck inside said lower groove, said stopper head having a raised central circular part, inwardly of said head flange. A capsule made of a folding and flexible metal sheet having a constituent part of a central top that is in contact with the upper surface of the elevated part of said head is applied to said stopper; a frustoconical part of descending divergence extending from said top region and encompassing the top of said head flange and an annular portion, like a skirt, descending from said frusto-conical part surrounding and in contact with the outer side of said head flange and flange of the neck, said skirt part having, in its lower part, a flange extending inwardly in contact with the lower face of the flange of said neck, said lower end having said part as skirt, before being bent inwardly in contact with said lower face of said collar flange, a lower annular terminal edge, in a plane perpendicular to the axis of said capsule. (Machine-translation by Google Translate, not legally binding)