Patent ID: 8475350

Claim:
A machine for folding sheet material, comprising: a plurality of sets of dies, wherein each set of dies is defined by a first die and a second die, respectively; and at least one tessellation being disposed on each die of each set of dies for making a single longitudinal fold in the sheet material, wherein each immediately successive die of said set of first and second dies has two more tessellations than that of each die of a previous set of dies; a penultimate set of dies, wherein each die of said penultimate set of dies has a number of tessellations, said number of tessellations being two more than that of each die of a previous set of dies; a last set of dies, wherein each die of said last set of dies has a number of tessellations, said number of tessellations being the same as the number of tessellations as that of each die of said penultimate set; said last set of dies further comprising a fold pattern negatively machined on a surface of each of said dies of said last set of dies.