B - Operations – Transporting – 65 – H
Patent
B - Operations, Transporting
65
H
271/3
B65H 39/00 (2006.01) B65H 45/28 (2006.01)
Patent
CA 2036970
63423-332 ABSTRACT In a conventional Bunch folder having a swing chute, beaters, spirals mounted for rotation about vertical axes, and a reciprocal cutting blade, a cut initiating device is provided. The cut initiating device initiates a cut (forms a knick) at the edge of a perforation between adjacent business forms to be severed from each other, so that the cutting blade may easily sever the forms completely at the perforation. The cut initiating device comprises a short horizontally extending blade mounted by a collar to a shaft of the spiral adjacent the cutting blade start position so that the blade is rotatable with the spiral for engaging the folding web at a perforation and forming a 1/16 to 1/2 inch cut in the perforation at an edge. The blade may have a horizontal cutting edge portion, a cantilevered portion at a different level than the cutting edge portion and a step portion interconnecting the cutting and cantilevered portions. A knick in the edge is formed at first predetermined intervals (e.g. every other fold perf), while complete severing by the reciprocal blade is practiced every 100 forms or so.
Folsom James C.
Moore Business Forms Inc.
Smart & Biggar
LandOfFree
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