Patent GB-293388-A (GB)
Title: Improved method and arrangement for associating supplementary sheets with printed products
IPC: B41F13/68
Filed: 1928-06-22
Abstract: 293,388. V÷gtlõndische Maschinenfabrik (vorm. J. C. & H. Dietrich), Akt.-Ges. Feb. 5, 1927, [Convention date]. Feeding and registering webs; associating- apparatus.-Relates to a method of observing and controlling the feeding of a supplementary product to another printed product such as a newspaper coming from a printing-machine, to ensure that they register correctly, the supplementary product being provided with gauging- marks, the position of which relatively to corresponding marks on an associating or other cylinder is observed, whereupon the speed of the oncoming supplementary products is accelerated or decelerated if necessary. The gauging-marks on the supplementary product may be printed on the edge of the web simultaneously with the printing of other matter thereon. Fig. 1 shows paper webs 1 from a printing-machine passing over folding-devices 2, through feed-rollers 3, to cutting-mechanism 4, 5, and thence to an associating-cylinder 6. The supplementary web 11 drawn from a delivery reel (not shown) is conducted over a folding-device 12 and through feed-rollers 13, 13<1 >to a cutting-mechanism 14,. 15, the severed sections then being carried by a band conveyer 17 to a feeding-cylinder 16 and on to the associating-cylinder 6. After association the products are delivered by a roller 7 and conveyer 8. To regulate the speed of the supplementary web the speed of the feed-roller 13<1> is adjusted relatively to the speed of the printing- machine. This is effected by gearing the cylinder 15 of the cutting-mechanism in known manner to the printing-machine by a gear wheel 22, Fig. 2, which, through an intermediate gear wheel 23, also drives a gear wheel 24 loosely mounted on a shaft 27 but rigidly connected by a hollow shaft 25 to a gear wheel 26, also loose on the shaft 27. The wheel 26 drives a sun and planet mechanism comprising a wide pinion 28 pivotally mounted on a gear wheel 29 loosely mounted on the shaft 27. A pinion 30 driven by a crank handle 31 engages the wheel 29 and provides further means for rotating it, means being provided for locking the handle against rotation. The pinion 28 also engages a gear wheel 32 which has one or two teeth more or less than the wheel 26 and is rigidly mounted on the shaft 27, which at its other end carries a gear wheel 33 geared to the feed-roller 13<1>. If the wheel 29 is locked in position the driving movement of the wheel 26 is transmitted through the pinion 28 to the toothed wheel 32, otherwise the pinion rides around the wheels 26, 32 and produces a relative displacement between them. To enable the feed of the supplementary products to be observed, gauge marks 40, Figs. 3 and 4, are printed, during the normal printing of the web, at the edge thereof at a short distance from the points at which cutting subsequently takes place. A countermark 41 is engraved or otherwise marked on the end of the feeding-cylinder 16 and is so arranged that during proper cutting of the supplementary web it aligns with the gauge-marks 40 on the cut sheets, an observation device being mounted adjacent to the feeding- cylinder to enable the marks to be observed at the high-running speed of the machine. In one form of observation device a screening disc 42 mounted on the end of the cylinder 10 has an opening 43 in the vicinity of the mark 41 on the cylinder, and an optical lens system 44 is mounted on the disc adjacent to the opening. A continuously-burning stationary lamp 45 is mounted behind the screen to enable the virtual image of the marks 40, 41 to be viewed through an aperture in a sight-screen 46. The end of the cylinder is preferably covered by a hood to exclude extraneous light. In another form a trunnion 50, Fig. 4, of the cylinder 16 is bored to receive a prism system 52 - - 54 which rotates with the cylinder, and a lamp 51 also rotating with the cylinder illuminates the marks, the image being deflected along the bore of the trunnion and viewed in a mirror 55. To produce a stationary image, a tube 56 containing a prism 57 and a lens 58 is mounted in the trunnion and rotated in the same direction as the cylinder but at half the speed. Another form of observation device comprises a lamp which illuminates for a short period, at intervals in synchronism with the speed of the machine, the interior of a hood covering the end of the cylinder, so that the relative position of the marks can be viewed through a slit in the hood. If the gauge-marks on the supplementary sheets outstrip those on the machine, the feeding speed of the sheets is decelerated by turning the crank 31 of the differential gear in the requisite direction. Conversely the speed is accelerated by turning the crank in the opposite direction. The observation-point may be at a position other than the cylinder 16, for example it may be at one of the cutting-cylinders 14, 15, or at a special observation cylinder disposed in front of the folding-guide 12. Instead of the crank 31 for actuating the regulating-gear a controllable electricmotor or a worm and worm-wheel gear may be used.