Patent GB-105379-A (GB)
IPC: B41F13/00
Abstract: 105,379. Goss Printing Press Co., (Goss Printing Press Co.). April 6, 1916. Driving printing-machines; rotary machines.- Helates to a multiple rotary printing-machine, and consists in an improved arrangement of the press sections and driving-mechanism whereby considerable variation in the output of the press is possible. The press described comprises twelve sections, each comprising two printing-couples, and four or six driving-motors capable of being connected to the various sections through six variable-speed mechanisms, so that the press may be run as six independent quadruples, as four sextuples, or as three octuples. Figs. 5 and 6 show diagrammatically, in plan, the right and left hand halves respectively of a press having six driving-motors M - - R, and twelve press sections A - - L each comprising two printing-couples, as shown in Fig. 8, capable of printing sixteen pages at each revolution of the press. Each section is fed from a reel 29, and the printed webs are passed over angle bars arranged above the sections, associated together, and led to one or other of six formers 21 - - 26. The longitudinally folded webs may be transversely folded by mechanism 27 and delivered by any suitable mechanism 28. The press sections at one side are driven by bevel-gearing 48, 49 from a line of shafting comprising five parts 30 - - 34 provided with clutches 40 - - 43, and at the other side by bevel-gearing 48, 49 from shafting 35 - - 39 provided with clutches 44 - - 47. The motors may be connected to these lines of shafting in various ways through six variable-speed mechanisms S - - X constructed as described in Specification 26633/10. The driving-connexions comprise driving-shafts 51 - - 54 at one side of the press and driving-shafts 57 - - 60 at the other side. The shafts 52, 53, 54 are connected by clutches 63, 64, and the shafts 57, 58, 59 are connected by clutches 67, 68. The motors M - - R drive the shafts 51, 57, 58, 53, 54, 60 respectively by chains 70. Fig. 9 shows in detail a set of operating-connexions between a pair of motors P, R and a pair of press-driving shafts 34, 39, the other sets shown in Figs. 5 and 6 being similar. Each of the variable-speed mechanisms comprises a countershaft 88 carrying fast and loose gears 89, 91 engaging loose and fast gears 97, 93 on the motor-driven shaft. By suitably operating clutches 90, 95, the gear 97 may be run at high or low speed as desired. The gear 97 on the shaft 54 is provided with a sleeve 98, to which is fixed a gear 99 engaging a gear 100 loose on an intermediate shaft 75 and meshing with a gear 103 splined to the shaft 34. Gears 101, 102 are also splined to the shafts 54, 75, and the gears 101, 102, 103 may be moved to the positions shown in broken lines. The gears 100, 102 are provided with clutch faces. Similar mechanism 104 - - 108, 78 connects the motor-driven shaft 60 with the press-driving shaft 39. The intermediate shafts 75, 78 are connected by a chain 85. To drive the shaft 34 from the motor P through the variablespeed mechanism W, and the shaft 39 independently from the motor R through the variable-speed mechanism X, the gears 101, 106 are moved to the positions shown in broken lines, so that the shafts 75, 78 remain idle. By this arrangement, the press sections K, I and L, J would be driven as two independent quadruples. These sections could also be driven as two independent quadruples from the motor P only, or from the motor R only, by removing the driving-chain 70 of the motor R or opening the clutch 64, all the gears being placed in the positions shown in full lines. When the motor Q, Fig. 6, is provided, it may be used instead of the motor P by disconnecting the clutch 64, but may be disconnected by removing the driving-chain 70. The shafts 34, 39 may be driven in unison through the variable-speed mechanism W from either the motor P or Q by disconnecting the motor R and moving the gears 102, 108, 106 to the positions shown in broken lines. The shafts 34, 39 could also be driven in unison through the variablespeed mechanism X from the motor R by moving the gears 107, 103, 101 to the broken-line positions. By these arrangements, the press sections I - - L would be driven as an independent octuple. By opening the clutches 64, 67, Figs. 5 and 6, and closing clutches 63, 68, the motors P, 0 can be used to drive the sections E, G, F, H either as independent quadruples or as an octuple. By coupling the sections E - - H to the sections AB, BD, IK, JL respectively, the press may be run as four independent sextuples. Various alternative arrangements for driving the press sections may be obtained by suitably operating the various clutches.