Patent ID: 8882098

Claim:
A method for forming completed packs containing a desired number of folded sheets formed in a stacking region below a pair of folding rolls along a sheet path extending through a nip between the pair of folding rolls by a continuously flowing sheet stream of folded sheets issuing downstream from the pair of folding rolls along the sheet path and having adjacent panels forming successive folds opening alternately in opposite directions substantially transversely to the sheet path, the method comprising: inserting at least one count finger into one of the successive folds to initiate each new pack, and moving the at least one count finger in a downstream direction while continuing to partly build the next pack on an upstream surface of the at least one count finger; and then rotating a knock down finger to contact a completed pack downstream of each new pack initiated: and further comprising moving the knock down finger with the at least one count finger while the knock down finger is in contact with the completed pack, and while the new pack is being built on the top surface of the at least one count finger.