Patent GB-190124006-A (GB)
Title: Improvements in Printing Machines.
Inventor: NEWTON HENRY EDWARD
Filed: 1901-11-26
Granted: 1902-01-23
Abstract: 24,006. Newton, H. E., [Hoe, R.]. Nov. 26. Rotary machines delivery apparatus.-Relates to rotary machines which may be used to print in colours or in black, and to means for preventing or relieving choking in the delivery apparatus. Fig. 1 shows diagrammatically one form of machine for printing in colours, and Fig. 2 shows the same for printing in black. Two printing-couples A, B are arranged with the impression cylinders 2, 4 between the forme cylinders 1, 3, and spaced apart as shown. Beneath the couples A, B are two other printing-couples C, D. Above the couples A, B are four other couples, E, F, G, H, forming a row and spaced apart as shown. The web may be led through as shown in in Fig. 1, being printed in four colours on one side by the couples E, F, G, H, and in four colours on the other side by the couples A, C, D, B, and then led to a suitable delivery mechanism, which may include the longitudinal folder 19. An additional pair of printing-couples I, K may be provided which may print a web in black. When double-width webs are being printed, suitable slitters, such as 24, 25, are provided. One half of the colour web is transferred laterally by diagonal bars 26, 27, and is led over a guide 31 to the folder, and associated with the other half passing round the guide 30. One half of the web printed in black by the couples I, K is transferred laterally by the diagonal bars 28, 29, the two half webs passing over guides 34, 35 to the folder for folding inside the colour webs. By throwing out the transferring-arrangements, the slit half webs may be led to folders placed side by side. In printing in one colour, as in Fig. 2, one web is printed by the couples A, E, another by the couples C, F, another by the couples D, G, and another by the couples B, H, the webs being passed round the guides 30, 34, 35, 31 and folded together by the folder 19. An additional web may be printed by the couples I, K, and associated with the other webs. The webs, when of double width, are slit by a slitter 36, and pass to two folders 19. A similar arrangement of machine is described, in which the folder 19 is placed outside the transferring- mechanism 26, 27, 28, 29, and the couples I, K are omitted. Fig, 5 shows a front elevation of a delivery mechanism. The web passes from the guide-rolls 44 to the cutting, folding, and collecting cylinders 42, 43, from which they pass through ordinary nipping-rolls 45 to one of two throats or passages formed between one of the sets of tapes 46, 47 and one of the guides 50, 51. The guides consist of sets of fingers 50, 51 on shafts 52, 53 connected by the arms 57, 58 and rod 59, so that, when one set of guides is in operative position, the other set is out of position. Each set of guides has projections 54 or 55 which act as switches to direct the sheets into the path. The shaft 52 is provided with a handlever 56 by which either set of guides may be thrown into position, and the other set out of position. Spring rods 75, 79, acting on arms 70, 71 of the shafts 52, 53, hold the guides in either position. To move the operative set of guides away from the tapes, in case of a choke, a treadle-lever 60 is provided having a treadle extension 62 for operation by the foot. A rod 63 connected to the treadle carries a cross-bar 65, which engages and depresses an arm 68 or 69 of the shaft 52 or 53 to move the operative guides, when the treadle is depressed. In a modification, a single passage is formed by one set of tapes and guides, the shaft of the guides being operated by a connection with the treadle-lever.