Abstract: A scoring rule for forming a folding score on a sheet material includes a pair of score members with a scoring surface portions with individually asymmetrical flat outer surfaces extending at an angle. The score members press against a first side of the sheet material to cause a pair of laterally spaced fold score lines to be formed on the first side of the sheet material by the scoring surface portions. As the scoring rule engages the sheet material, a second, opposite side of the sheet material is compressed such that rubber-type material of an anvil of the rotary press bulges towards and forces the sheet material into an area between the pair of score members causing a self-contained single longitudinally inwardly extending groove to be formed on the second, opposite side of the sheet material along a line parallel to and positioned between the laterally spaced score lines.

Abstract: A folding score having a pair of laterally spaced, parallel scoring grooves which are individually asymmetrical. This invention also relates to a method and apparatus for forming the folding score.

Abstract: A folding score having a pair of laterally spaced, parallel scoring grooves which are individually asymmetrical. This invention also relates to a method and apparatus for forming the folding score.

Abstract: A folding score having a pair of laterally spaced, parallel scoring grooves which are individually asymmetrical. This invention also relates to a method and apparatus for forming the folding score.

Abstract: A folding score having a pair of laterally spaced, parallel scoring grooves which are individually asymmetrical. This invention also relates to a method and apparatus for forming the folding score.

Abstract: A folding score having a pair of laterally spaced, parallel scoring grooves which are individually asymmetrical. This invention also relates to a method and apparatus for forming the folding score.

Abstract: A folding score having a pair of laterally spaced, parallel scoring grooves which are individually asymmetrical. This invention also relates to a method and apparatus for forming the folding score.

Abstract: A method and apparatus for mounting an ejector to a die board including an ejector retaining recess in the die board and a portion of the ejector retained in such base without glue.

Abstract: A folding score and a method and apparatus for forming the folding score which includes a pair of longitudinally extending and laterally spaced side scores and a plurality of longitudinally spaced cross scores positioned therebetween. The apparatus for forming the folding score includes a creasing rule or a die board embodying a creasing rule with a pair of laterally spaced score members and a plurality of longitudinally spaced cross score members positioned therebetween.