Machine to clad an electrical wire with insulation has an inverted conical core within the bobbin, for the insulating ribbon, to guide the ribbon into a spiral around the wire with overlapping edges

摘要

The machine for the production of a covered wire has an inverted conical core (553) within a bobbin (55). The diameter of the upper end of the cone is larger than the lower end, giving a cone angle (551) so that a plastics transparent or colored ribbon (50) wound around the core moves up to a higher level when unwound from the bottom. It is wound around the wire (52) by centrifugal forces.