Abstract: A machine for making plastic bags, such as trash or garbage bags, includes a rotary sealing drum of variable diameter, the drum including one or more sealing bars for cross-sealing a flattened plastic film tube passing through the machine. A blanket tensioning system surrounds the drum and is adjustable to compensate for different drum diameters. The sealed film passes over a chill roll after leaving the drum-blanket assembly and is drawn over folding boards by pull rolls. The sealed and folded film is then perforated by a fly knife and is preferably also cut on the sides to produce a connected series of bags which may easily be separated from one another to make the bags suitable for easy dispensing packages. A variator assembly may also be provided to insure a proper skirt length between the cut-perforation and the bag seal.

Abstract: Apparatus for cutting a continuous strand into predetermined lengths, wherein a cutting head having an array of cutting blades rotates around its axis, a strand winding device rotates around an axis intercepting the axis of the cutting head for positioning and winding continuous strand around the array of cutting blades, a toroidal strand guide member is spaced equidistant from the strand winding device to control the travel of the continuous strand to the strand winding device and cutting head, and a strand cut-off device is operative at time of tie-up of the continuous strand to the apparatus for severing the connection of the continuous strand from an air doffer used in the tie-up operation.

Abstract: A device is provided for producing a large number of fibres, generally from a thin wire, in which a cutting mechanism imparts a high initial speed to the cut wire lengths, which are then oriented in the same alignment by being passed through a funnel-shaped opening into a pipe whose diameter is less than the length of the fibres; a method is provided for using the thin oriented and aligned fibres to bond and reinforce materials, for example, concrete, and to manufacture sandwich panels, in which the concrete is applied to the fibres shot into the sandwich panels in accordance with.

Abstract: Labelling equipment is provided for applying heat shrinkable wrap-around labels to contoured surfaces of containers. The equipment includes a label carrier having a wheel rotatable about its axis, a vacuum system coupled to the wheel to retain labels on the wheel, a feeder for directing containers individually to the wheel adjacent the periphery of the wheel to receive a label, and a drive system for receiving containers from the bottle feeder and for rolling the containers upon receiving the label from the label carrier.The container is supported on a platen having a diameter corresponding to the greatest diameter of the container so that the label depends in a skirt from the container. The container is subsequently transferred to a smaller platen and passed over a heated plenum to shrink the skirt to the contours of the container.

Abstract: A rotary punch device for making window cut-outs in envelopes and cardboard oxes, with a clamping device for clamping a metal foil having a cutting edge etched out of the foil material. Vacuum bores in the cylindrical surface of the rotary punch retain the material for treatment in position while the punched-out portion of the window is initially also retained by a vacuum and blown away by an air blast on completion of the punch operation.

Abstract: For transporting and guiding delicate packaging material in conjunction with a packaging machine for producing individual blanks, a conveyor band 15 is subdivided by deflection into two portions 24, 25 is used. In the region between these conveying portions the sheet 12 or blank 10 is transported on a roller 26 acting as an intermediate conveyor. The severing cut is made here, without the continuous guidance of the sheet and blank being interrupted.

Abstract: There has been provided a cutting device utilizing a fixed cutting edge and a movable roller axially mounted on a radial arm parallel to the cutting edge. The roller has an outer surface which is also parallel to the cutting edge. A composite laminate for making peelable labels is moveably supported between feed and take up rolls in parallel spaced relation with the roller and the cutting edge. The radial arm is actuated for moving the roller against one side of the composite and urging an opposite side thereof against the cutting edge for effecting the cut as the roller moves in proximate spaced relation with the cutting edge. The radial arm and roller carried thereby swings between extreme stop positions, and a cut is made each time the roller swings in proximate spaced relation to the cutting edge. The frequency of the swings of the radial arm, or the speed of the composite past the blade determines the length or distance between the cuts.

Abstract: An apparatus for simultaneously trimming both lateral marginal portions of a scalloped stream of sheets has a transporting unit which is driven to advance the stream in a horizontal cutting plane flanked by two stationary counterknives which are mounted below the cutting plane and whose cutting portions are disposed in the cutting plane. The sheets in the cutting plane are biased against the transporting unit and their marginal portions are trimmed by the cutting edges of radial knives mounted on two coaxial rotary holders disposed at a level above the cutting plane and each cooperating with a different one of the counterknives. The cutting edges of the knives are inclined with reference to the longitudinal directions of the respective knives and orbit along endless paths which are intersected by the cutting plane so that each cutting edge which reaches the cutting plane moves below such plane before beginning to move upwardly and above the cutting plane.

Abstract: A method and means for adjusting a forage harvester shear bar relative to its rotating cylinder. The outer end of the shear bar, the central portion of the shear bar and the inner end of the shear bar can all be selectively adjusted while the cylinder is rotating, these adjustments being made from the outer or operator's side of the harvester and at a common location. All of the shear bar adjusting means are located at one convenient and safe area at the outer or operator's side of the machine and the operator can accurately adjust the outer, central or inner end of the bar by noting the "tick" noise created when the particular end or portion of the shear bar being adjusted touches or comes in contact with the rotating knife of the cylinder.

Abstract: Labelling equipment is provided for applying wrap-around labels to cylindrical containers. The equipment includes a label carrier having a wheel rotatable about its axis, a vacuum system coupled to the wheel to retain labels on the wheel, a feeder for directing containers individually to the wheel adjacent the periphery of the wheel to receive a label, and a drive system for receiving containers from the bottle feeder and for rolling the containers upon receiving the label from the label carrier. The drive system includes at least one belt engaged about the wheel in slipping relationship therewith to permit the belt to move faster than the periphery of the wheel and including a portion for moving in contact with the container immediately after the container leaves the feeder to both carry the label off the wheel and to engage it on the container. A cutter arrangement is provided with a lobe which removes tension from the label as it is severed from the strip of labels.

Abstract: A method and apparatus for setting the positioning between a first rotating member and a second fixed or rotating member in a rotary machine comprises controlled thermal elements positioned on the frame supporting the members and/or on the rotating member(s) itself to counteract the effects of centrifugal force on the rotating member(s) to thereby approximately maintain the setting between the members. The temperature of the frame controlled by the thermal elements can be maintained in proportion to the speed of rotation of the rotary member(s) to maintain the setting of the rotary machine throughout its operating speed range. A predefined temperature may be set by the thermal elements prior to the manual setting of the rotary machine so that the temperature of the frame and/or rotating member(s) can be controlled to compensate for wear of the rotating member(s) in machines wherein such member(s) encounters wear over operating time.

Abstract: Apparatus for cutting a continuous narrow strip into short sections. The apparatus comprises a rotatable yoke which has attached thereto a plurality of blades, each of which has an edge provided with a row of teeth. The yoke is adjacent a stationary blade which has an edge provided with a row of teeth. The teeth of the blades which are attached to the yoke and the teeth of the stationary blade mesh as the yoke rotates.A guide member directs a continuous strip generally vertically downwardly to a position between the yoke and the stationary blade. Thus, as the yoke rotates, the strip is cut into short sections which fall downwardly from the yoke and from the stationary blade.

Abstract: An apparatus for continuously cutting thin trim strips from a moving printed web so as to form uniform web products and removing the trim strips from the cutting area is provided, for in-line operation with a web press. The gapping of the web is effected by a cutting cylinder with a hollow bore, which carries at least two pairs of spaced cutting knives that act against a stationary shear blade. The space between each pair of blades connects with the cylinder bore, which in turn is connected to a low-pressure source. As a printed web is fed to the cutting cylinder, the spaced knives cut trim strips in the web and these strips are removed through the space and the cylinder bore by air flow caused by the low-pressure source. The circumferential speed of the knives acting on the web is greater than the speed of the web itself, this reducing any bubbling of the web, and the width of the space between knives is greater than the width of the trim strip.

Abstract: Continuous scrap edge trimmings are fed from a sheet metal slitter into a scrap chopper incorporating a rotor shaft supporting axially spaced and circumferentially spaced elongated straight cutting bars each having a plurality of selectable straight cutting edges. Each rotary cutting bar revolves past a stationary straight cutting bar also having a plurality of selectable straight cutting edges, and each cutting edge is positioned at a compound angle relative to planes including the axis of the rotor to produce scissor-like shearing of each strip. Each stationary cutting bar is positioned adjacent a spring biased anvil and is supported with the anvil for remote adjustment relative to the path of the corresponding cutting bars on the rotor. Each edge trimming is fed into the cutting bars by a corresponding pair of feed rollers one of which is spring biased and the other of which is independently driven by a corresponding motor.

Abstract: A cutting apparatus for an electrostatic copying machine includes a fixed blade having a straight cutting edge, a rotary shaft mounted for rotation on the frame of the machine, and a rotary fixed to an carried by the rotary shaft, the rotary blade having a spirally curved cutting edge. A wrap spring clutch is capable of transmitting rotation of a continually rotating gear to the rotary shaft and rotary blade. The wrap spring clutch is prevented from operation by a control cog of a double cog member. An inclinable member operates the double cog member to release the wrap spring clutch to enable rotation of the rotary shaft and rotary blade. The double cog member has a rotation lock cog which stops the wrap spring clutch after a predetermined rotation of the rotary shaft and rotary blade.

Abstract: A rotary punch for punching envelope blanks from moving webs of paper or like or for making shaped cuts from prepared envelope blanks has a backup roll which bears on a cutter roll. The punch is characterized by the provision of intermediate bearings with an adjustable member therebetween. This precludes unwanted movements in the bearings between the two rolls due to varying cutting and out-of-balance forces, the adjustable member making it possible to correct the between-axes distance to suit cutter wear.

Abstract: A method of removing the front and rear segments of a rolled wire fed in winding packages subdivided into good stock and into scrap windings separated by cutting movements corresponding substantially to the transporting movement of the winding packages. The windings spirally or helically surround a guidepipe element. Several cutting wheels rotate in the region of the upper surface of the guide-pipe element. The cutting wheels, together with counter knives, which stand still during the cutting procedure, form a separating device. The peripheral speed of the cutting wheel and cutters corresponds at least substantially to the transporting speed of the winding packages.

Abstract: A rotary punch for the production of pre-shaped outer and inner cuts on mng webs or individual blanks of paper or the like, and more particularly, for the preparation of envelopes, flat bags or the like, includes rotating cutting tools whose cutting edges describe an envelope cylinder and at the instant of cutting impinge on a stationary abutment aligned at a slight inclination to the axis of rotation of the tools and so clamped that the operative edge of the abutment is everywhere at the same radial distance from the axis of rotation. The punch has a holder for the abutment, which holder has a bed molded from a curable liquid, and a cutting ledge of circular cross-section which is secured in the bed.

Abstract: A machine for the crosscutting of a multi-ply web includes a crosscutter, a guide preceding the crosscutter in the direction of web travel and a feed section disposed between the web guide and the crosscutter preceding the web to the crosscutter which includes a pair of rolls. Differences in sheet lengths of the various plies cut by the crosscutter is compensated by mounting the web guide for pivotable movement as a unit about the axis of one of the two rolls of the feed section and for fixing the web guide in a selected position in the path of motion thereof.

Abstract: The present invention relates to a process and device for continuously and rotatably cutting a sheet transversely with respect to its direction of advance, wherein the device comprises a rotor provided with cutters and mounted to rotate about an axis eccentric with respect to that of a squirrel cage surrounding this rotor, the bars of the cage defining slots for the passage of the cutters as far as a flexible belt resting on an anvil member and wound on cylinders for driving the sheet to be cut. This device is particularly applicable to the cutting of laths from a sheet of wood as said latter is peeled, for the manufacture of packing cases or the like.

Abstract: A device for cutting a paper web includes a rotary blade assembly, a stationary or non-rotatable blade in cutting engagement with the rotary blade assembly and being retractable from the rotary blade assembly during the cutting engagement therewith, guide members supporting the non-rotatable blade for sliding movement in the direction of the retraction, and the non-rotatable blade being biased into cutting engagement with the rotary blade assembly.

Abstract: Continuous scrap edge trimmings are fed from a sheet metal slitter into a scrap chopper incorporating a rotor shaft supporting axially spaced and circumferentially spaced elongated straight cutting bars each having a plurality of selectable straight cutting edges. Each rotary cutting bar revolves past a stationary straight cutting bar also having a plurality of selectable straight cutting edges, and each cutting edge is positioned at a compound angle relative to planes including the axis of the rotor to produce scissor-like shearing of each strip. Each stationary cutting bar is positioned adjacent a spring biased anvil and is supported with the anvil for remote adjustment relative to the path of the corresponding cutting bars on the rotor. Each edge trimming is fed into the cutting bars by a corresponding pair of feed rollers one of which is spring biased and the other of which is independently driven by a corresponding motor.

Abstract: A mechanism for cutting a web of flexible sheet material which is adapted to be used in a dispenser having a feed roller and a pinch roller between which rollers the web passes. A knife is pivotally mounted in the feed roller to swing about an axis laterally displaced from the plane of a radially outward portion of the knife defining a cutting edge which edge is projected outwardly beyond the periphery of the feed roller to cut the web as it passes over the feed roller and cam followers are carried by the ends of the knife extending beyond the ends of the feed roller with the followers displaced from the pivot mounting axis of the knife. Stationary cams are mounted adjacent the ends of the feed roller with which the cam followers on the knife engage to positively project the knife cutting edge beyond the feed roller periphery and retract the cutting edge upon rotation of the feed roller.

Abstract: A rotary cutter in which a bed knife is displacably mounted with relation to the rotary knife so that the bed knife, when actuated, travels a path between an operative position adjacent the rotary knife and an inoperative position remote from the rotary knife. An extendable linkage connected to the bed knife defines the operative position of the bed knife at the point of maximum linkage extension. Adjusting means connected with the linkage enable precise determination of maximum linkage extension which thereby insures precise setting of the bed knife and prevents bed knife travel beyond the operative position.

Abstract: An apparatus for reducing fiber material to chip form including an anvil assembly defining an anvil bearing surface of generally U-shaped configuration having leg portions joined by a connecting portion, at least one knife blade and carrier means for moving the knife blade in surface-to-surface bearing engagement with the anvil bearing surface in a direction extending from adjacent the ends of the leg portions towards the connecting portion to effect cutting or severing of the material into chip form.

Abstract: Apparatus is provided for transversely cutting up a web of material to form blanks of equal length, particularly tickets. The apparatus comprises a cutting head and infeed means for feeding the web to the cutting head. The cutting head has a frame supporting a cutting cylinder and a counter-blade. The cutting cylinder is provided with at least one blade on its periphery. The frame is arranged to pivot about a vertical axis that is disposed laterally of the web. This enables the angle of the cutting head relative to the web to be adjusted in dependence upon the rate of feed of the web. Means are provided for driving the cutting cylinder and the infeed means in such a manner that their speeds are in a fixed ratio.

Abstract: A paper web cutting device of a full rotation type comprises, in combination: a rotary cutter including a shank with rotary shafts at both ends, a cutting blade affixed to the shank, with its edge inclined circumferentially relative to the common axis of the shafts, a guide ring located at the cutting starting end of the blade and having a radius of rotation equal to that of the edge, and a second guide member located at the cutting terminating end of the blade and having a volute configuration, with its radius of rotation gradually decreased from the initial value equal to the radius of rotation of the edge; and a stationary cutter having a straight edge and supported in place by pivot pins at both ends, in such a manner that, at the cutting terminating end, the edge is graded to interfere slightly with the radius of rotation of the rotary cutter edge, the edge being forced by a spring to bear against the rotary cutter.

Abstract: A device on a sewing machine for severing thread chains comprises a driven movable cutting knife which has a cutting edge disposed to move in a path in which it is spaced from a stationary counterknife. The driven knife is continuously rotated during the ordinary sewing operation, and when cutting is to be effected, the thread chain is directed so that it is moved over the counterknife to place it in a deflection position in the path of movement of the movable cutting knife and cause the movable cutting knife to move in a path in which it comes into the range of cooperative interengagement with the stationary counterknife.

Abstract: An apparatus for use in a data terminal device or other type of business machine for providing a plurality of different cutting configurations on a receipt or other type of record member. The apparatus includes a rotatably mounted stationary blade member having a plurality of different cutting edge configurations, a rotating blade member coacting with one of the cutting edges of the stationary blade member to cut the record member in accordance with the configuration of the cutting edge of the stationary blade member, and selectively operated activating means for rotating the stationary blade member to position one of the cutting edges thereof adjacent the record member so as to provide a predetermined cutting pattern on the record member upon operation of the rotating blade member.

Abstract: A forage harvester has a cylinder type cutterhead that includes a hollow cylindrical drum having a solid cylindrical peripheral wall and a pair of radial end plates to which a pair of axial, stub shafts are attached. Welded to the outside of the drum are a relatively large number of knife support members that are formed of relatively short sections of angle iron and extend parallel to the cutterhead axis. The support members are arranged in circumferential rows and are disposed at equal angular intervals, the support members in one row being angularly offset and relatively closely spaced from the support members in the adjacent row. Both edges of the support members are welded to the drum, so that the leading side of the support member is inclinded outwardly and rearwardly relative to the direction of rotation and functions as a deflector for crop material.

Abstract: A full rotation type, sheet web shearing machine comprising a rotary blade with a shearing edge, a stationary blade with a shearing edge, a motor for driving and braking the rotary blade, a cam for detecting a rotation angle of the rotary blade and gears for reducing the revolution speed of the motor. The full rotation type, sheet web shearing machine may cut sheet web to a given length. Owing to one full rotation of the rotary blade, it can cut the sheet web running continuously at a high speed without jam. The rotary blade is rotated, through gears driven by the motor and also is braked by making a braking circuit between electrical terminals of the motor so that the rotary blade is stopped at a predetermined angle.

Abstract: A support structure for a cutter bar for use in a forage harvester, the support structure adjustably supporting the opposite ends of the cutter bar and providing a convenient readily adjustable structure for supporting the central portion of the cutter bar to prevent movement of the central portion of the cutter bar relative to the cutting cylinder of the forage harvester and to afford adjustment of the position of the central portion of the cutter bar relative to the blades of the cutting cylinder.

Abstract: An apparatus for perforating sheet material during travel of the latter in a given plane. The apparatus includes rotary punches which penetrate through the sheet material during travel thereof. The punches turn around an axis extending transversely with respect to the direction of travel of the sheet material so that each punch approaches the plane of the sheet material to initially contact the latter and then penetrate through and be retracted from the sheet material. Each punch has a concave punching end surface forming part of a cylinder whose axis is perpendicular to the punch axis and parallel to the axis around which each punch turns while approaching the plane of the sheet material. Thus, each punch has at its punching end leading and trailing tips which lead and trail considered in the direction of rotation of each punch.

Abstract: Perforating blades for perforating traveling webs of material such as paper in high speed apparatus are made from cold rolled steel which is hardened in a vacuum furnace to produce a scale free surface. The height to which the blades are ground is determined by measuring the average thickness of the blade and grinding the height of the blade to a dimension and tolerance in accordance with an equation which relates blade height to blade thickness. Thus the thickness of each blade can vary. With conventional knife rolls in which the blades form an angle of 45.degree. relative to a radial line of the knife roll, the sum of the height and thickness for each blade in the knife roll is equal.

Abstract: Dispensing apparatus for rolled-up strips of wound sheet material with said sheet material so positioned as to be unwound by means of an abutting rotatable and controllable drum including a cutting device for said stripped material.

Abstract: An improved apparatus for cutting a moving web of paper comprising a cutting blade mounted on a rotary shaft at an angle to the axis of the shaft and a stationary cutting bar cooperating with the cutting blade to cut the web into paper of predetermined lengths. The apparatus is particularly suitable for cutting paper into predetermined lengths at high speeds as it is discharged from the printing system of a high-speed computer.

Abstract: A continuously moving web passes over a fixed female die, which die is slotted to define a U-shaped cutting edge. A cylindrical punch rotates on an axis above the path of the web so that a cutting edge defined at the free end of the punch moves into the slot defined in the fixed die to cut a tab in the web. The length of the tab so cut can be varied by changing the relative speed of movement between the punch and that of the web, and the punch is mounted at an offset to its rotational axis. If such offset is positive, that is in the direction of rotation, the tab can be formed to "lead" the web. Providing the offset in the opposite or negative direction, the tab "trails" the web.

Abstract: An iron piece shearing machine which comprises in combination an iron strip supply source from which at least one continuous length of iron web or strip is payed out, a pair of upper and lower feed rollers positioned midway of the passage of said iron strip extending from said supply source and having a nip defined therebetween, a pair of upper and lower spaced stationary blades positioned downstream of said feed rollers in the passage of the iron strip and having an iron strip guide clearance defined therebetween, and a high speed rotary shearing cutter assembly positioned adjacent to the distal ends of said stationary blades to shear small pieces having a small square cross-section area off the remaining portion of said iron strip in cooperation with the stationary blades.

Abstract: Helical shear blade cutter cooperable with a straight-edge bed plate for trimming fibers projecting from an article, including a shaft, and a blade in the form of a helical band wound edgewise on and about the shaft, the helical blade having a free edge forming a cutting edge from which a cutting face of the blade extends inwardly toward the shaft, the cutting face being formed with a serration to limit lateral yielding of the fibers as the fibers are being sheared by the cutting edge and the straight edge of the bed plate, the serration including saw-like teeth, respectively, having a short and a long flank, the long flank, in a condition wherein the shaft is disposed parallel to the straight-edge bed plate, forming a first angle with respect to the straight edge of the bed plate that is equal to the difference between a second angle formed by the cutting face of a blade without serrations formed therein and the straight edge of the bed plate and a third angle formed by the long flank and the cutting face of