Forming shoulders; Tube formers

Full Title

Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages > Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs > the webs being formed into tubes in situ around the filling nozzles > Forming shoulders; Tube formers