Method and apparatus for wrapping paper rolls

Claim 1

A method of protectively wrapping a cylindrical article having a substantially circular end face and cylindrical surface about a cylindrical axis of revolution by capping said end face with a header wrapping sheet having a central covering area coextensive with said end face and a flange area about and radially beyond the periphery of said central area, said method comprising the steps of: A. Aligning said header wrapping sheet parallel-planar with and adjacent to said article end face; B. Coaxially aligning said article and header wrapping sheet with a radially tensioned planar element comprising a plurality of concentric resilient bands connected radially in a common plane by cable means each band of said plurality having a respective spring rate for applying substantially the same constrictive force as other bands in said plurality to said cylindrical surface when expanded thereabout; C. Coaxially drawing said planar element against said header sheet and end face; D. Constrictively girdling said header wrapping sheet flange area against said cylindrical surface with at least one resilient band drawn from the concentric plurality in said planar element.

Claim 2

A method of protectively wrapping a cylindrical article having a substantially circular end face and cylindrical surface about a cylindrical axis of revolution by capping said end face with a header wrapping sheet having a central covering area coextensive with said end face and a flange area about and radially beyond the periphery of said central area, said method comprising the steps of: A. Aligning said header wrapping sheet parallel-planar with and adjacent to said article end face; B. Coaxially aligning said article and header wrapping sheet with a radially tensioned planar element comprising a plurality of concentric resilient bands connected radially in a common plane by cable means each band of said plurality having a respective spring rate for applying substantially the same constrictive force as other bands in said plurality to said cylindrical surface when expanded thereabout; C. Coaxially drawing said planar element against said header sheet and end face; D. Constrictively girdling said header wrapping sheet flange area against said cylindrical surface with at least one resilient band drawn from the concentric plurality in said planar element.

Claim 3

An apparatus for applying sheets of header wrapping material over circular ends of cylindrical articles comprising: A. Axially reciprocable ring frame means of greater inside radius than the radius of said circular ends of said cylindrical articles; and, B. Circumferentially resilient aperture means comprising a plurality of resilient tensile rings secured substantially concentrically in a common plane to said ring frame substantially centrally across the interior opening thereof by a plurality of radially extended cable means thereby providing a suspended aperture of less inside radius than said article radius, said tensile rings having respective spring rates for radially constricting a sheet of header wrapping material against said cylindrical articles with substantially equal constrictive forces.

Claim 4

An apparatus for applying sheets of header wrapping material over circular ends of cylindrical articles comprising: A. Axially reciprocable ring frame means of greater inside radius than the radius of said circular ends of said cylindrical articles; and, B. Circumferentially resilient aperture means comprising a plurality of resilient tensile rings secured substantially concentrically in a common plane to said ring frame substantially centrally across the interior opening thereof by a plurality of radially extended cable means thereby providing a suspended aperture of less inside radius than said article radius, said tensile rings having respective spring rates for radially constricting a sheet of header wrapping material against said cylindrical articles with substantially equal constrictive forces.