Patent ID: 7452321

Claim:
An interfolding apparatus for interfolding sheets cut sequentially from a single web of material, the apparatus comprising: a knife roll rotatable about an axis and operable to cut successive sheets from a stream of the single web of material issuing from a source in a downstream direction; a folding roll positioned downstream of the knife roll, the folding roll rotatable in a first direction at a first roll speed; and an additional roll disposed adjacent to the folding roll and rotatable about an axis in a second direction at a second roll speed, the additional roll operable to receive the successive sheets and release the successive sheets in the downstream direction toward the folding roll; wherein the folding roll and the additional roll define a nip therebetween, the successive sheets passing through the nip, and wherein the first roll speed of the folding roll is different from the second roll speed of the additional roll, the difference in speed between the folding roll and the additional roll operable to overlap adjacent portions of the successive sheets cut from the single web of material onto the folding roll.