Patent ID: 7980174

Claim:
A longitudinal web perforation device usable in a web-fed rotary printing press having spaced side frames, said longitudinal web perforation device comprising: at least one perforating blade usable to generate a perforated line in a web of printing substrate, said perforated line extending along a direction of travel of said web of printing substrate through said web-fed rotary printing press and through said web perforation device; an elongated perforating blade guide element supporting said at least one perforating blade above a first side of said web of printing substrate and for movement transversely to said direction of travel of said web of printing substrate, said elongated perforating blade guide element having spaced first and second ends; a cutting ring cooperating with said at least one perforating blade to form said perforated line in said web of printing substrate as said web passes between said perforating blade and said cutting ring; an elongated cutting ring guide element spaced from, and parallel to, said elongated perforating blade guide element and supporting said cutting ring below a second side of said web of printing substrate and for movement transversely to said direction of travel of said web, said elongated cutting ring guide element having spaced first and second ends; an adjustment device usable to cooperatively move each of said at least one perforating blade and said cutting ring transversely to said direction of travel of said web of printed substrate along, their respective ones of said perforating blade guide element and said cutting ring guide element to any position across a width of said web of printing substrate; and a shared base plate separate from said web-fed rotes printing press and separably securable to a slide frame of said web-fed rotary printing press, said first end of said elongated perforating blade guide element, said first end of said elongated cutting ring guide element and said adjustment device each being attached to said shared base plate, said elongated perforating blade guide element and said elongated cutting blade guide element each extending from said shared base plate as a cantilevered arm and being spaced from each other, said elongated perforating blade guide element, said elongated cutting ring guide element, said adjustment device, and said shared base plate cooperating to configure said longitudinal perforation device as a module which is insertable transversely to said direction of travel of said web and through a side frame of said web-fed rotary printing press with said second ends of said elongated perforating blade guide element and said elongated cutting blade guide element being unsupported and allowing passage of said web of printing substrate therebetween during said insertion of said module transversely to said direction of travel of said web and through said side frame of said web-fed rotary printing press, said module being usable in a plurality of locations in one or more of said web-fed rotary printing-presses.