Patent ID: 8057375
Filing Date: 2011-11-15
Classification: B65H

Abstract:
1. A multi-path interfolding apparatus, comprising: first and second sheet-cutting-and-overlapping arrangements and an interfolding arrangement, simultaneously mounted and operatively interconnected in a common frame, for alternatively selectively forming a first interfolded pattern having a folded width from overlapped sheets of a first length cut from a web of sheet material fed along a first path extending through the first sheet-cutting-and-overlapping arrangement to the interfolding arrangement, or forming a second interfolded pattern having the same folded width from overlapped sheets of a second length cut from the web of sheet material fed along a second path extending through the second sheet-cutting-and-overlapping arrangement to the interfolding arrangement; the interfolding arrangement having a pair of interfolding rolls operatively mounted in the frame for rotation in opposite directions to one another and forming an interfolding nip therebetween, with the interfolding rolls being cooperatively configured to form an interfolded stack having the folded width from a stream of the first sheets fed along a first path extending through the interfolding nip, or alternatively to form an interfolded stack having the folded width from a stream of the second sheets fed along a second path extending through the nip; the first sheet-cutting-and-overlapping arrangement including a first overlap roll rotatably mounted in the frame adjacent the first folding roll for transferring sheets of the first sheet length directly from the first overlap roll to the first folding roll along the first sheet path; and the second sheet-cutting-and-overlapping arrangement including a second overlap roll rotatably mounted in the frame adjacent the second folding roll for transferring sheets of the second sheet length directly from the second overlap roll to the second folding roll along the second sheet path.