#$%^&*AU2012100333A420120419.pdf#####Abstract: A rectangular counter knife (1) with a larger diameter hole (I-B), the counter knife has (1) two lateral, longitudinal, parallel, rectangular and vertical walls (I-C) inferiorly forming a rectangular recess (I-D), the two rectangular, inferior and transversal guides (2-B) of the rotating disk (2), support the rectangular knife (1), adjusting a hex-nut (4) in a larger diameter hole (2-C), coincident to the hole (1-B), receiving these holes on inferior-superior direction (I -B,2-C), a hexhead screw (5) initially by-pass one of the two holes (6-A) centralized along one rectangular knife (6)with two side cutting edges (6-B)and their ends have (6-C), a constructive variant comprising a rectangular knife (7) with a longitudinal, central and oblong opening (7-A), with two central, opposite and semi-circular projections (7-Al) forming a circular central opening in the middle of the knife the rectangular knife (7) has two side cutting edges (7-B) and two cutting edges on the ends (7-C). Error! Unknown document property name.
