An apparatus for the manufacture of a corrosión resistant light alloy cap for crown closures for bottles with bordered edge neck. (Machine-translation by Google Translate, not legally binding)

摘要

An apparatus for carrying out the described method characterized by a material holder consisting of an annular member and a hollow cylindrical member, the latter being provided internally with a movable punch driven by a spring and in addition by a second punch cooperating axially with said first punch and furthermore by means of adjusting the action of the spring of such mucus that the cylindrical shape of the sleeve is first matrixed if it exceeds the force of the spring and then the flange of the edge is matrixed. (Machine-translation by Google Translate, not legally binding)