Abstract: A device and method for aligning the axis of rotation of a blade parallel to the axis of rotation of an anvil roll, including a blade support for rotatably holding the blade, wherein the blade support is pivotable relative to a pivot axis to effect parallel alignment of the axes. The pivot axis is disposed essentially perpendicular to the axis of rotation of the anvil roll and upstream of a contact point of the blade with the anvil roll as viewed in a direction of passage of material between the blade and the anvil roll.

Abstract: A motor driven slitting knife assembly is provided with a quick disconnect arrangement for permitting rapid replacement of a slitting knife. The motor is provided with a rotatable hub having a radially extending flange. A slitting knife is mounted on one side of the flange and a piston and cylinder assembly is mounted on an opposite side of the flange. A plurality of headed bolts are mounted on the piston and extend through elongated slots in the slitting knife. The elongated slots have an enlarged end and a smaller end whereby, upon rotation of the knife in one direction with the heads of the bolts out of engagement with the knife, the knife may be removed over the heads of the bolts and upon rotation of the knife in the opposite direction, the heads can engage the knife upon movement of the headed bolts to clamp the knife against the flange for rotation therewith.