Patent GB-339256-A (GB)
Title: Improvements in paper ruling, cutting and folding machines
IPC: B65H45/16
Filed: 1929-09-02
Abstract: 339,256. Bell, W. R., and Bell & Valentine Proprietary, Ltd. Sept. 2, 1929. Ruling-machines; inking-apparatus, -In a machine for the manufacture of ruled book sections, a moving paper web is ruled on both sides and slit into two parts of equal width which are superimposed and forwarded to collecting, cutting, and folding mechanisms delivering book sections comprising a predetermined number of doublyfolded pairs of ruled sheets. From the web roll 32, Fig. 2, the paper passes over a roller 37 on a spring-controlled arm 38 and then between ruling discs 45 and an impression cylinder 42 which rule one side of the paper followed by a similar apparatus for ruling the other side of the paper. Ink is supplied to the discs 45 by duct-rollers 43 adjustable axially relatively to the ducts 44 by set-screws 49 so as to prevent the discs 45 forming grooves therein. Folding paper.-The ruled web is cut by slitters 66, 68 into two equal parts which pass respectively to turning-bars 74, 75 adjustable by pen-and-slot connections so that the two parts when brought together between feed rollers 23, 24, Fig 1, are in exact register. The rollers 23, 24 and collecting, cutting, and delivery cylinders 87 - - 80, Figs. 4 and 7 respectively, to which the webs subsequently pass, are duplicated, one set being of larger size than the other in order to make book sections of greater width. The driving mechanism of either set can be coupled to a driven gearwheel 15, Fig. 1, on a pivoted arm 16, the outer end of which is adjustable along a slot 18 for this purpose. The cylinders 87 - - 89 are hollow and geared together. Mounted on a shaft 92 in the cylinder 87 are sheet-taking pins 100 normally held in the protruding position by spring 102 controlling an arm 93 carrying a roller 95 adapted to be engaged bv a cam 96 so as to retract the pins 100. the cylinder 87 also carries a folding blade 113 fixed to an adjustable spindle 115, and co-operating with grippers 122, 123 on the cylinder 88. One jaw 122 is fixed to the cylinder and the other is carried by a shaft 126 having adjustably fixed thereto an arm 130 carrying a roller 131 adapted to be engaged by a cam 132 so as to open the grippers when they are adjacent to the blade 113. A radially adjustable cutting blade 136 with spring-pressed blocks 137 on each side thereof is mounted on the cylinder 88 and co-operates with a rubber pad 107 fixed on the cylinder 87 slightly in advance of the needles 100. The cylinder 88 also carries a folding blade 113 which co-operates with grippers 122, 123 on the cylinder 89 operated by a cam 132 as in the case of the cylinder 88. In operation, the leading edge. of the web is impaled on the pins 100 which carry it around the cylinder 87 for half a revolution. At this point, the blade 113 tucks the paper into the grippers 23 and the pins 100 release it. After another half revolution, the cutter 136 severs the sheets carried by the gripper from the web and the pins 100 impale the severed edge of the web and repeat the operation. Meanwhile the sheets on the cylinder 88 are carried to a position where the blade 113 thereon co-operates with the grippers 23 on the cylinder 89 to impart a second fold, the gripper 23 on the cylinder 88 at the same time releasing it.