Abstract: An improved multi-layer paper sheet forming system is disclosed, in which a degree of dispersion of fibers under the condition where a paper layer has been formed is large, thereby formation of a paper sheet is improved, moreover, bases of short wire cloth sections can be installed at the same level as a building floor and a complicated base of the shape of steps is not necessitated. The system comprises one endless felt loop and a plurality of short wire cloth sections disposed on the endless felt and provided with a dewatering instrument having, as dewatering elements, forming blades consisting of two zones, that is, a flat front half and a curved rear half. The short wire cloth section includes a forming roll having a large diameter and a breast roll having a small diameter, and the plurality of short wire cloth sections are disposed substantially at the same level.

Abstract: A papermaking apparatus that can form a paper web having a good fiber formation is disclosed. A plurality of vertically adjustable forming rolls are provided on the top surface of an endless felt couch between a lead-in roll and a couch roll, and stationary forming bars are provided on the bottom surface of a wire screen. The endless felt couch and the wire screen, between which paper stock is interposed, are caused to move by undulation to generate pulses, which in turn apply shear force onto the paper web to dewater the paper web while facilitating fiber dispersion on the paper web.

Abstract: With a sheet stacker to stack sheets cut by a sheet cutter into stacking station, sheets cut by a sheet cutter are transferred by a conveyor with a fixed sheet interval, a clamping device clamps a base position near the tail end of the sheet during transfer of the sheet, and the sheet transfer speed is reduced to an optimum speed needed for stacking the sheet into stacking station orderly. The clamping device has a rotating device having free rolls at its end and a slowdown roll, and clamps the sheet once during each revolution of the rotating device, by contact of the free rolls with the slowdown rolls.

Abstract: With the splicing get started, braking becomes strong and the old core decelerates, when the capstan roll comes to be free run. The speed reference to the second motor is a summed-up speed of "line speed minus capstan speed" and compensated portion of the tension. At once when the old core starts deceleration, the accumulation roll unit starts moving. The capstan roll is accelerated at a certain rate, when the new core is drawn out, up until the speed reaches "line speed plus overrun speed". When the accumulation roll unit reaches the synchronous position, the overrun becomes "0" and the capstan roll synchronizes with the line speed.

Abstract: With a sheet feeding apparatus, to feed sheets piled up in a hopper, piece by piece, to a printing press from a suction conveyor installed at bottom of the hopper, having motor for driving the suction conveyor, sensor positioned above the suction conveyor to detect front edges of sheets, and a control unit to equalize speed of motor with speed of plate cylinder of the said printing press and to adjust phase of sheet to phase of the plate cylinder, sheet feeding accuracy is improved.