A new system of retorces, double torsion, with sealing caps of several pieces (Machine-translation by Google Translate, not legally binding)

摘要

Improvements introduced in the object of the main patent no. 198,441 by "a new double torsion twist tine system with a multi-piece barbed bushing characterized in that at least one of the grooves of the sleeve has a widening with the parts of the bushing being joined together. The assembly and disassembly of the thread guide ring. (Machine-translation by Google Translate, not legally binding)