A sheeter for a web fed printing press having: an infeed section; a first cutting head into which the infeed section feeds the web, the first cutting head for cutting the web transversely comprising a circular knife cylinder and corresponding anvil cylinder having circumferences larger than the repeat length of the press; a sheet transfer section having rollers, which moves the cut web from the first cutting head to a second cutting head; the second cutting head comprising a circular knife cylinder and corresponding anvil cylinder to cut a chip from the cut web, a motor to rotate the first and second cutting heads and sheet transfer section rollers at the same surface speed; and nip rollers to deliver the finished product from the second cutting head to a delivery system. The second cutting head can be rotated with respect to the first cutting head so that the length of the chip can be increased or decreased. Also, the first and second cutting heads can be but a single cutting head composed of two cooperating knife/anvil cylinders.
Adhesive bandages are prepared from an elastic backing material by decreasing the tension in the backing material just prior to attachment of the adhesive pad.
Apparatus for removing and disposing of scrap paper chips impaled on a roller rotating away from the cutting region of a rotary cutter has a pneumatic baffle plate located a distance of 3/8 to 11/2 inches away from the roller, defining a narrow flow channel through which an air stream is sucked by a centrifugal fan. The baffle is spaced apart from the roller a distance such as to impart a high velocity to the air stream due to aerodynamic effects, causing chips to be forcibly removed from the roller when the chips reach an area above the flow channel. The baffle along with a chute that supports it and duct leading to the fan provide an enclosed channel for movement of the chips. The baffle edge adjacent the roller is provided with a curved surface to provide smooth flow of the air stream. The output of the fan has an air duct connected for conveying the chips to disposal.
Folding apparatus for signatures having a given format includes at least a first longitudinal folding device, a plurality of cylinders arranged in succession thereafter and followed by at least a second longitudinal folding device. Also included are a cylinder section having a base frame, and two cross-fold systems operatable independently of one another and integrated in the base frame. Each of the cross-fold systems has cylinders for guidingly carrying signatures having a given format, the signature-carrying cylinders being of such diameter as to have an outer cylindrical surface extending over the circumference thereof adequate for carrying one behind the other at one time at least two of the signatures having the given format.
The method for producing indexable sets of inserts by printing a web in a repeating mode to form successive groups of printed areas, each group of printed areas corresponding to a particular set of inserts, imaging personalized information on at least one printed area of each group, longitudinally severing the webs into ribbons, superposing the ribbons one above another, transversely severing the superposed ribbons forming successively severed inserts, at least one of which serves as an indexing insert having a greater length than the remaining inserts in a particular set of inserts.
Laminated elements, which may be constituted, for example, by labels to be applied to articles while in movement, are formed from a strip provided by a feeding device. The strip moves forward onto a reception unit, passing through a cutting zone. The individual laminated elements are formed by causing the cutting unit to come into action when the length of the strip paid out by the feeding unit is equal to the desired length of the labels. The cutting unit preferably includes a revolving knife and a counterknife, where the latter consists of a non-driven roller supported in a cradle that is lubricated and exerts an elastic force against the cutting unit. Preferably, the reception unit realizes the step of applying the individual laminated elements to their respective articles.
