Precision slitting machine for plastic sheeting

Claim 1

A precision slitting machine for plastic sheeting comprising a cutter frame, a first cutter blade shaft, a plurality of cutter blades, a plurality of spacers, means alternately fastening said plurality of cutter blades and said plurality of spacers upon said first cutter blade shaft, a second means supporting said first cutter blade shaft in said cutter frame, a second cutter blade shaft, a second plurality of cutter blades, a second plurality of spacers, a third means alternately fastening said second plurality of cutter blades and said second plurality of spacers upon said second cutter blade shaft, a fourth means supporting said second cutter blade shaft in said cutter frame with said second plurality of cutter blades aligned with said first mentioned plurality of cutter blades, that improvement which comprises a plurality of guide fingers, support means suspending said plurality of guide fingers in pairs, with each pair of guide fingers aligned with spacers on both said first cutter blade shaft and said second cutter blade shaft, and means for presenting a sheet of material to said plurality of cutter blades, a first and a second elongated slot (are provided) in said left side, a third elongated slot aligned with said first elongated slot and a fourth elongated slot aligned with said second elongated slot are provided in said right side, a first guide rod adjustably fastened in said first and third elongated slot, a second guide rod adjustably fastened in said second and fourth elongated slot, a first plurality of guide fingers supported upon said first guide rod, a second plurality of guide fingers supported upon said second guide rod with said second plurality of guide fingers aligned with said first plurality of guide fingers to provide pairs of guide fingers alternately located between the alternately located plurality of cutter blades on said first cutter blade shaft and said second cutter blade shaft.