Process for demoulding an article of glassware with a helical pattern, device for making use of the said process and glassware article thus produced

摘要

Process for demoulding an article of glassware produced by moulding in a single-block mould comprising decorative mouldings 3 and a valve subjected to a helical movement the generatrix of which corresponds to the helical axis of the said decorative mouldings 3. The invention also relates to glassware articles obtained by making use of the said process and comprising at least one pattern with a helical generatrix. <IMAGE>