Patent GB-196090-A (GB)
Title: A rotary blocking-press for bookbinders' use
IPC: B42C7/00
Filed: 1922-01-17
Abstract: 196,090. Murray, J. Jan. 17, 1922. Sheet-separators; registering-devices; pusher feeds; dropping-roller sheet-feeds; pile tables; delivery apparatus.-Book covers are fed to rotary blocking-presses and delivered therefrom by mechanism comprising a slotted table A<4> on which the covers are stacked with the inside downwards, and are kept in position by adjustable sides B<2> and front members B<3>, forming an adjustable hopper with adjustable holding-down bars B<18>, under which the bottom cover is fed by means of projections D, D<1> or D<2>, D<3> on chains D', D<5> which move in slots in the table A. The chains are carried by sprockets as D', D", Fig. 8, mounted on a link-system comprising vertical levers as D<23>, D<25>, mounted on shafts A<5>, A<10>. The chains are normally driven by spur gearing from the impression cylinder A' of the blocking- press A<2>, A<3>, and at the same, speed as the press. One of the spur wheels is connected to its shaft by a worm and worm wheel which permits the position of the projections D<1> &c. to be varied relatively to the cylinder A<3> which is itself fitted with one or two registering devices G capable of circumferential adjustment by a rack and-wormgearing. The velocity of the separated sheet is accelerated to register it longitudinally by moving the link-system which supports the chains in a direction towards the registering device G by means of a cam D<28> and a rod D<26> having a yielding connection with a bolt D<29> connecting the two similar members D<25> of the system. The link-system may be held in a depressed condition when it is desired to trip the feeding action. As soon as the cover is registered longitudinally, it is gripped between a driven roller F<1> and a camoperated drop-roller F. To ensure correct lateral register, the flexible parts of the covers arranged between the back boards is kept distended by rails C, C<1> which are caused to engage with the inner edges of the back boards. One of these rails C is adjusted by a rack to the required position, and the other C<1> is reciprocated laterally by a rack-and-pinion mechanism operated by a cam to move the rail away from the edge of the back board and by a spring C<18> to engage the rail with the edge of the back board so as to keep the flexible part taut as the cover is advanced. The covers are delivered from the press by rollers H, H<1>, H<2>, H<3>, on rising and falling levers, the rollers being driven at the same speed as the press, and being actuated by a cam and flexible connections arranged to bring the rollers H<2>, H<3> together to take up the feed as the rollers H, H' cease to act on the rear edge of the cover. The covers are deposited on a conveyer formed of slots J<11> carried by sprockets J<9>, J<10> driven by epicyclic gearing from the machine. The front sprocket wheel is mounted in a hanging bracket J<2>. The covers are directed on to the conveyer by arresting their front edges by stops K<7>, K<8> adjustable on a bar K<6> fitted in an adjustable carriage K<2> having supports K<9>, K<10> and side guides K", K<12> for the covers. As soon as the covers leave the rollers H<2>, H<3> their rear edges fall on to inclined bars K<13>, and they then fall on to the conveyer and are maintained thereon in an inclined position, as shown.