Abstract: A method for positioning tools comprises a first process for moving all tools into a stand-by reach and a second process for moving tools into a positioning reach, and the second process comprises steps of moving a tool onto an origin and moving the tool from the origin by a distance equal to a desired distance between the tool and a following tool. An apparatus for positioning tools is provided with a single signal generator rotated by a rotating shaft for moving shifters, by which the tools are moved in the positioning and stand-by reaches.

Abstract: An improved printing apparatus for printing a running web is proposed which includes printing units each having a plate cylinder adapted to carry two plates, a pair of impression cylinders mounted in diametrically opposite directions, and adjust rolls for guiding the web so that the length of web existing between two contact points will be three or more odd number of times as long as the printing length. The plate cylinder or the web is controlled so that during the printing, the peripheral speed of the plate cylinder will be equal to the web speed, and from the print end to the next print start, the plate cylinder will move for a distance equal to the gap between the two plates.

Abstract: A surface winder for a web of sheet material which performs transfer of winding operation from a winding device to another winding device without stopping of the operation or slowing down of the speed of operation. The surface winder comprises plural winding devices, web guide means, a cutting device, web feeding means and means for forming an adhesive layer on the surface of a web. The web guide means are capable of delivering a leading end portion of the web at the winding devices, and the feeding means are capable of feeding the web to the guide means by way of the cutting device.

Abstract: An improved process and apparatus for splicing a new web to a running web are proposed. The old web is cut off just behind the spliced point. Therefore, no tail is left on the web spliced. The running web is nipped at two points between two pairs of rolls. Because it is tight between the two points, a clear cut is possible with a single cutting blade.

Abstract: A rotary die cutter for die-cutting blanks one after another has a blank feed unit, a pair of cylinders for die-cutting the blanks, and an endless member running synchronized with the cylinders. The blanks are gripped by grippers mounted at equal spacings on the endless member. The cylinders are adapted to allow the grippers to pass between the cylinders while gripping the blanks.

Abstract: A mill roll stand for supporting at least one roll of paper or similar web-like material. The stand has a pair of endless members arranged with a spacing therebetween, at least one pair of bases mounted on the endless members so as to be opposed to each other, at least one pair of center shafts supported in the bases so as to be laterally slidable into and out of the center hole in the roll to be supported to hold the roll, a drive for driving the endless members in a synchronous manner, and a guide for guiding at least part of the endless members so that they will run in a predetermined route even under the weight of the web rolls.

Abstract: Die cutter and process for die cutting blanks by a blade unit and an anvil opposed to each other are proposed in which either the blank feed speed or the horizontal component of speed of the blade and the anvil is controlled mechanically or electronically to make them equal to each other during the cutting operation.

Abstract: Rolls having an elasticity on their outer periphery are used in corrugated fibreboard producing and processing machines. Tubes or tubular sheet adapted to be inflated with gas, elastic cords or strings, elastic tubular sheets, or tubular sheets with air bubbles thereon or therein are used to at least partially cover the outer surface of the rolls, thus giving the rolls an elasticity.

Abstract: An improved die cutter is proposed in which the blanks are supported for a certain amount of movement with respect to the blank gripper so as to be fed not clamped by the gripper but by engagement with the blade and the anvil during the die-cutting. This eliminates the problem resulting from the difference between the blank feed speed and the horizontal component of speed of the blade and the anvil.

Abstract: An apparatus is disclosed for aligning at least two running webs with each other. It is characterized in that any lateral displacement is corrected at a position at a predetermined distance upstream of the displacement detection point or where excessive tension is not applied to the web to be corrected. Further, correction is made taking into consideration the time for the displacement detectors to follow the web movement and the time for the web to come back to a stable condition after splicing.

Abstract: A method and an apparatus for guiding a corrugated fibreboard web in which the edges of a running web are detected and followed by a pair of sensors and a pair of web guides are controlled to move according to the width of the web to positions at an equal distance from a certain reference line, e.g. the machine center.

Abstract: A slitter-scorer apparatus comprises upper and lower slitter-scorer units which are disposed in one above the other relationship and are vertically movable respectively. The apparatus can immediately change slitting and scoring operations along the flowing direction of long and flat materials, which are fed continuously, without any reduction of the flowing speed of the materials, and the operations can be performed on the materials which flow along an approximately straight line, while the total length of the slitter-scorer apparatus is shortened to the upmost.

Abstract: An improved single facer is proposed which is provided with a control system for automatically controlling the gap between the lower corrugating roll and the glue roll and/or that between the former and the press roll according to the thickness of the material passing between them. The thickness of the material and the gap between the rolls are detected and an electrical signal proportional to the difference between them is given to a drive motor, which moves the glue roll and/or the press roll toward and away from the lower corrugating roll.

Abstract: This method is a method producing double-faced corrugated boards which includes methods for changing single-faced corrugated boards. The methods comprise the steps of cutting a single-faced corrugated board which is fed from a single facer onto a bridge and delivered from the bridge into a double facer at said bridge or before it; and splicing the tailing edge of the board with the leading edge of another single-faced corrugated board which is fed from another single facer onto said bridge.

Abstract: A closable container in which is enclosed brominated carbonaceous molecular sieve having micropores within the range of 4 to 6 Angstrom units in diameter and a method for prolonging the shelf-lives of green perishable foods and flowers by the use of said container.

Abstract: An apparatus for transporting boards comprising: a first conveyor adapted to transport a large number of boards in an upright position: a tripping device adapted to pivot every several or tens of the boards transported by the first conveyor to the delivery end thereof to lay the boards with the front faces upward and the bottom edges forward, and to transfer them to the feed end of a second conveyor; the second conveyor adapted to transport the laid boards to a subsequent process; and an aligning device adapted to align the front edges of the laid boards being transported by the second conveyor.

Abstract: A web cutting control system controlling the speed of a rotary cutter for automatic, continuous and precise cutting of a web fed at a constant speed into predetermined lengths or on the marks on the web. Two transducers generate pulses the number of which corresponds to the web feed length and the rotating angle of the rotary cutter, respectively. Three sensors detect the marks on the web, the completion of cutting, and the arrival of the cutter blades, respectively, to control the flow of signals. A desired cutting length or the distance between the mark detection point and the point of completion of cutting is preset. A reversible counter receives the pulses from these two transducers and the difference signal between the preset value and a reference signal and performs reversible counting thereof, the result of which is used to control the speed of motor for the rotary cutter to bring its speed into synchronization with the web feed speed for accurate cutting.

Abstract: A paper roll diameter sensing device for use with a paper splicing apparatus is disclosed which gives the output signal when the diameter of an unrolled paper roll is reduced to a predetermined diameter so that the running paper web may be spliced to the leading end of a new paper roll.

Abstract: A single facer for manufacturing single-faced corrugated board having a first corrugating roll and a second corrugating roll meshing with the first corrugating roll to form a nip for receiving a sheet medium to corrugate the same, the second corrugating roll being provided with radial conduits extending toward its periphery through which suction is applied for attracting and holding the corrugated medium onto the peripheral surface thereof. The outer ends of the conduits terminate in the bottoms of axially spaced circumferential grooves formed around the periphery of the second corrugating roll. Finger-like plates engage within the circumferential grooves to seal at least some of the conduits disposed in the portion of the second corrugating roll which is not lapped by the corrugated medium.

Abstract: A slitter-scorer apparatus comprises upper and lower slitter-scorer units which are disposed in one above the other relationship and are vertically movable respectively. The apparatus can immediately change slitting and scoring operations along the flowing direction of long and flat materials, which are fed continuously, without any reduction of the flowing speed of the materials, and the operations can be performed on the materials which flow along an approximately straight line, while the total length of the slitter-scorer apparatus is shortened to the upmost.