Patent GB-569760-A (GB)
Title: Improvements in or relating to late news or like printing mechanism
IPC: B41F13/28
Filed: 1943-09-14
Abstract: 569,760. Printing machines. GOSS PRINTING PRESS CO., Ltd., and WHITEHEAD, W. A. Sept. 14, 1943, No. 15078. Addition to 559,853. [Class 100 (ii)] Late news, means for printing ; rotary machines, tripping arrangements.-In a late news printing mechanisim as described in the parent specification, one or each of the type cylinders is adjustably mounted for movement towards and away from the impression cylinder assembly, so that impressions from both cylinders may be made simultaneously. The mechanism may be combined with a reversible printing couple to form a unit so that by suitably threading the web, single-colour printing may be effected on one side of the web, and " non-stop " late news or two-colour work may be printed on the other side, or " non-stop '' and another colour or three-colour work may be performed on one side of the web. By combining such a unit with a second unit consisting of a pair of couples, one of' which is reversible, various other kinds of printing may be performed on one or a pair of webs. Fig. 3 shows a unit comprising a late news printing set 10, 11, 12 and a reversible couple 13, 14. The late news set consists of a pair of type cylinders 11, 12 and an impression cylinder 10. The type cylinder 12 is mounted in fixed bearings and the cylinder 11 in eccentric bearings 45 each of which is provided with two lugs 48, 49 diametrically opposite but in different planes. The lug 48 co-operates with a pair of stop screws 52 and the lug 49 with a locking screw 54 which may be inserted in either of two holes in the frame adjacent the screws 52. In the position shown in Fig. 3 both cylinders 11, 12 are in contact with the cylinder 10 for multicolour work. To arrange the mechanism for '' non- stop " late news printing, the screws 54 are removed, the bearings 45 turned counterclockwise until the lugs 48 contact with the upper screws 52, and the screws 54 inserted in the lower holes to engage with the lugs 49. The impression cylinder 10 may then, by operation of its eccentric bearings 37, be moved into contact with either cylinder 11 or 12. The impression cylinder 13 of the reversible couple 13, 14 is mounted in eccentric bearings 65 cooperating with stop and locking screws 70, 72 similarly to the bearings 45 of the cylinder 11. A gear 80 fast on the shaft of the cylinder 13 is in constant mesh with an idle gear 79 mounted on the eccentric end 78 of a shaft 77 connected by segment gears 75 to segment gears 74 on the bearings 65 so that in the position of the bearings 65 shown, the gear 80 is out of mesh with the gear 23 driving the impression cylinder 10 and the gears 79, 23 are engaged. When the bearings 65 are turned into their other position, the gear 80 engages and the gear 79 disengages the gear 23 and the drive of the couple 13, 14 is reversed. The web is then directed between the cylinders 13, 14 from the right of the couple and thence directly between the cylinders 10, 12. Thus arranged, printing front the cylinder 14 and either " non-stop '' or two-colour printing from the cylinders 11, 12 take place on one side of the web. By the addition of another unit comprising a couple 85, 86, Fig. 4, and a reversible couple 87, 88 and threading the web through this unit either as shown in Fig. 4 or as shown in Fig. 8, additional single-colour printing on each side or additional two-colour printing on one side may be effected. Further, the web printed by the couples 85 ... 88 may be separate from that provided by the cylinders 10 ... 14, the two webs being associated at a folding apparatus C.