Abstract: A cutting arrangement for longitudinally cutting material includes two blades disposed across from one another and which cooperate during cutting. Each blade is embodied as a circular blade having a sharp cutting edge and supported by an adjusting or placement mechanism. During the cutting process, the circular blades are positioned by the adjusting or placement mechanisms so that the cutting edges overlap one another to form an overlap zone, the center of which coincides with the middle of the material that is to be cut. An adaptive control assembly includes individual drive motors for driving each blade and enables constant side load force control for each blade, such that side load pressures are adjustable in response to changes in web sped, web tension, and blade condition in real time. Automatic blade diameter sensors calculate the zero point of the cut, determine the appropriate blade speed and automatically set the overlap.

Abstract: Noodles with hand-made quality consisting of thick and thin portions are processed by introducing a noodle belt between first and second cutting rolls 5 and 6 having first and second cutting blades 3 and 4 each formed by large and small diameter portions 3a, 4a and 3b and 4b, and spacers 7. The cutting rolls are relatively shifted in an axial direction such that the thick portion is formed by opposing large diameter portion and spacer and the thin portion is formed by opposing large diameter portion and small diameter portion.

Abstract: A system for slitting a web includes a carriage assembly having an elongate housing including a first wall, where the first wall defining a longitudinal axis. A first plurality of rails can be mounted on the first wall, wherein the plurality of rails extends parallel to the longitudinal axis. At least one of the plurality of rails can have a substantially circular cross section, among others. The system also includes a first plurality of carriers. Each carrier can be adapted and configured to support an instrumentality such as a blade for performing an operation (e.g., cutting) on a web of material. The carrier body includes a first body portion and a second body portion. Each of body portion includes at least one mounting feature for mounting the carrier on a the plurality of rails.

Abstract: A cartridge is configured for slitting a mill roll in a slitting machine. The cartridge includes a first shaft mounted in bearings in a pair of endplates, with one end of the shaft having a driven yoke for rotation thereof. The first shaft includes a row of first circular blades spaced longitudinally by corresponding first spacers. A second shaft is pivotally mounted in the endplates, and is spaced parallel with the first shaft. A dovetail bar is fixedly joined to the second shaft parallel therewith. And, a row of blade holders are mounted along the dovetail bar, with each holder including a second circular blade aligned with a corresponding one of the first blades for cutting in shear a web unwound from the mill roll. The cartridge may be quickly replaced in the slitting machine for each production run thereof for alignment with cores on a corresponding arbor.

Abstract: In a method for severing a protruding section of a layer of a laminate, particularly a backing film of a laminate, which comprises at least one solid plate, particularly a glass plate, a severing tool having a rotating cutting blade and a rotating counter-blade is used. The blades are rotated in opposite directions about parallel axes. The cutting blade and the counter-blade are furthermore offset laterally such that a main surface of the cutting blade contacts a main surface of the counter-blade in a working region. The offset arrangement of the blades, and the fact that the main surface of the cutting blade and the main surface of the counter-blade mutually contact each other, enable a precise, scissors-like cutting operation, which is particularly suited for severing protruding sections of a laminate. Because the two main surfaces directly abut each other, a jamming of severed material between the blades is prevented.

Abstract: A rotary cutter comprises a first knife located on a knife shaft having a longitudinal axis, a second knife spaced from the first knife by an adjustable cutting gap, a control unit including a drive for turning at least one of the first knife or the second knife, and an adjusting mechanism for moving at least one of the first knife or the second knife in the direction of the longitudinal axis to adjust the cutting gap. The adjusting mechanism comprises a first signal transmitter for detecting a zero position of the first and second knives; a second signal transmitter for detecting the cutting position of the first and second knives; and an adjustment drive coupled to the first and second signal transmitters for movement of at least one of the first or second knives from the zero position to the cutting position.

Abstract: A circular-cutter unit for equipment cutting flat lengths of material and sheet metal in a horizontal plane has upper and a lower circular blades both in planes perpendicular to the horizontal plane and in a longitudinal direction, carried by an upper and lower blade shaft, respectively, which are parallel with the horizontal plane and perpendicular to the longitudinal direction. The two blade shafts are rigidly and rotatably mounted in a common frame. The frame is U-shaped with the upper and lower legs connected by a flat yoke intersecting the horizontal plane at an acute angle. Several cutter units are mounted in a single apparatus and driven by a common drive from which the units can be individually detached for servicing.

Abstract: A blade holder for cutting machines has a blade head secured at a lowering device and a blade head housing having a chamber. The blade head has a blade holding member for receiving a circular blade. An advancing device is mounted in the blade head housing. The advancing device has an advancing piston rod and an advancing piston actuating the advancing piston rod. The advancing piston rod acts on the blade holding member for moving the circular blade between a cutting position and a ready position. The advancing piston is pneumatically actuated and mounted and guided in the chamber. A pressure spring acts on the advancing piston rod to prestress the advancing piston rod into the ready position of the circular blade. A pressing device loads the pressure spring in a direction of the cutting position of the circular blade. The pressing device is decoupled from the advancing piston rod.

Abstract: The present invention relates to a slitter apparatus with a compensating device for slitter blades thereof to provide a stable or proper operation for cutting a corrugated cardboard sheet. The slitter apparatus according to the present invention is comprised of a plurality of slitter heads 20-24 disposed in-line in the width direction of the corrugated cardboard sheet, each of the slitter heads including a disk-shaped slitter blade 40 for cutting the corrugated cardboard sheet being continuously fed along a feeding line by moving the disk-shaped slitter blades toward the corrugated cardboard sheet. The apparatus further comprises positioning sensors 50 for detecting the vertical position of each of the disk-shaped slitter blades 40, and an optical sensor 58 having an optical axis 60 generally disposed in a parallel relationship with respect to the corrugated cardboard sheet.

Abstract: A ticket making apparatus includes a feed mechanism and a perforating assembly set within a housing that has an opening through which tickets are dispensed. The perforating assembly perforates a flexible material to define individual tickets. The apparatus can also include a slicer assembly to slice the flexible material into strips of tickets. The apparatus can also include a printing mechanism for adding print to the flexible material. A method for making tickets includes feeding a flexible material into a perforating assembly and dispensing the perforated material as a plurality of tickets. The method can also include synchronizing the flexible material to the rotation of the perforating assembly, slicing the flexible material into strips of tickets, and printing on the flexible material.

Abstract: A plurality of upper slitting blades and a plurality of lower slitting blades are located such that each of the upper slitting blades stands facing one of the lower slitting blades. The upper slitting blade and the lower slitting blade, which stand facing each other, are located such that a cutting edge vicinity region of the upper slitting blade and a cutting edge vicinity region of the lower slitting blade overlap each other in a radial direction. The plurality of the upper slitting blades and the plurality of the lower slitting blades are rotated to slit a magnetic tape web into magnetic tapes. A cutting edge of each of the upper slitting blades and/or a cutting edge of each of the lower slitting blades has a curved shape.

Abstract: The present invention relates to a control device to grind a knife shaft used in a machine intended for cutting sheets of materials into strips, for example sheets of paper, plastic, plates of photosensitive film or any other material having the form of thin sheets. The control device according to the invention enables the grinding of the knives of knife shafts of a slitter by checking and controlling the drift of the dimensional differences of position of the knives on the knife shaft and by controlling the variability of the pitches between the knives. This with the goal of obtaining the precision and the quality of cutting required for cut photographic film strips. This device especially finds its principal application in the photographic industry, in particular on grinding machines for the knives of knife shafts equipping the film slitters.

Abstract: A slitter apparatus for the slitting of substantially flat articles, such as unrolled steel, comprising paired entry and exit pinch rollers and paired slitter knives. The vertical positions of the paired pinch rollers and slitter knives are coordinated whereby the path of travel, i.e. pass line, of the steel through the slitter is predetermined to a substantially optimum path for slitting of the steel. The invention likewise includes a method of determining and positioning the slitter in accordance with a substantially optimum path of travel for such articles being slit.

Abstract: An automated material jam release system adapted for an impression system is disclosed in which various material presence sensing arrangements transmit “present” or “absent” signals that control automatic release and locking systems to either (a) remain in a first or operating position with a head holding an anvil in a predetermined position adjacent to a frame mounted die holder roller or (b) move to a second or open or jam release position where the anvil is not in an operating relationship to the roller.

Abstract: Pressure working on each support mechanism or on a clearance adjusting mechanism disposed on opposite end portions of a knife rotor and a plain rotor while a sheet material being cut is measured. The clearance adjusting mechanism is actuated to adjust the contact pressure of the knife based on the measured pressure.

Abstract: This invention relates to a system and method for cutting circuit board panels utilizing an in-line cutting mechanism. As the panel is transported into the cutting mechanism, adjustable rails are moved into position to properly guide the panel into the cutting head. The actual cutting operation is performed by transporting the panel between an upper cutting disk blade and a lower cutting disk blade. The distance between these two blades is adjustable and permits precision cutting of the panel with minimal stress to the circuit board and its components.

Abstract: A high speed rod trimming shear includes a pair of eccentrically bored sleeves mounted for rotation about parallel first axes. Carrier shafts are supported in the bores of the eccentric sleeves for rotation about second axes parallel to the first axes and located on opposite sides of the rod path. The carrier shafts have blade holders with attached cutting blades. A primary drive rotates the carrier shafts continuously, and an adjustment mechanism rotatably oscillates the eccentric sleeves to adjust the distance between the carrier shafts between a first setting at which the cutting blades rotate out of contact with the rod, and a second setting at which the cutting blades coact during rotation to sever the product.

Abstract: A cutter-infeed apparatus for cutting installations for articles in tape or strip form or film-like articles, circular cutters being fastened on upper and lower shafts and displaced with respect to one another for fixing the cutter infeed, and an electrical insulation between the upper and lower shafts making it possible to detect the cutter contact during infeeding and thereby make the infeeding operation automatable. It is also possible to make the infeeding of the individual cutters or cutter-box cutters such that it can be set depending on the difference in speed of the upper and lower shafts. The apparatus can be used for cutting machines of all types in which thin, uncoated or coated polymer films or metal foils can be cut.

Abstract: A trimming shears for sheets and strips having two shears frames arranged opposite one another and on supports and being rotatable about a central vertical axis. A pair of vertically stacked adjustable roll blades are mounted in each shears frame at diagonally opposite horizontal corners of the shears frames. The roll blade pairs are rotary driven by gears and couplings to cut the sheet or strip edges. The roll blade pairs are adjustable both vertically and horizontally to accommodate different material thicknesses and widths. The roll blade pairs are arranged in the shears frames such that when the shears frames rotate 180.degree. about the central vertical axis, the position of the roll blade pairs is transposed--with the first roll blade pair taking the position of the second roll blade pair.

Abstract: The invention relates to a cutter assembly for slitting of coils of relatively large width into one coil of desired width or into several coils. The material for slitting is preferably metal, for example steel or aluminum, but coils of other material can also be slit. The invention is directed to make a very strong and stable slitting device, having a minimum of plays in order be able to slit steel coils from a thickness of up to 15 mm. The invention is also designed to slit coils of aluminum having a thickness of at least 0.1 mm.

Abstract: A knife holder unit combined with a rotary knife pair includes a frame composed of an upper frame part and a lower frame part; and an upper and a lower knife holder assembly supported in the upper and the lower frame part, respectively. Each knife holder assembly includes a bearing shaft composed of a first bearing shaft part having a longitudinal axis and an adjoining second bearing shaft part. The first bearing shaft part is received in a recess of a respective frame part for turning motions therein about the longitudinal axis. A first securing arrangement immobilizes the first bearing shaft part relative to the respective frame part. A rotary bearing surrounds the second bearing shaft part and has a rotary axis which is offset relative to the longitudinal axis to define an eccentricity therewith. A rotary knife is mounted on the rotary bearing.

Abstract: A slitting machine includes a pair of parallel arbors structured to support a plurality of cutting knives. The arbors are mounted to a head stock and tail stock on the slitting machine. The head stock and tail stock each rotatably support eccentrics which support the end portions of the arbors. Angular contact bearings, such as tapered roller bearings or ball bearings with inclined races, are positioned between the head stock and tail stock and the respective eccentrics and also within the eccentrics between the arbors and the eccentrics. Mechanisms are provided for providing an axial load across all of these bearings to eliminate play and so to accurately position the arbors so that cutting accuracy can be maintained. One such mechanism is a collet/piston supporting the operator's end of the arbors. The collet piston is received in a cylinder to which hydraulic pressure can be applied through a rotary coupling.

Abstract: Rotary shears for dividing sheet steel strips for sheet steel panels into several bands including a machine frame, two blade shafts rotatably mounted in a machine frame at an adjustable distance apart and at least one of which is driven, roller blades which can be positioned axially on the blade shafts, a manipulator which can slide on the machine frame parallel to the blade shafts and which positions the roller blades axially on the blade shafts and releasable clamps for clamping the roller blades on the blade shafts in predetermined positions. All roller blades can be positioned on the blade shafts individually and independently of each other by the manipulator and can be clamped on the blade shafts individually and independently of each other by the clamps.

Abstract: Apparatus for subdividing a running web into narrower webs has a counterknife which is driven to rotate about a substantially horizontal axis. A second knife is freely rotatably mounted in a holder at a level above the counterknife. The holder is carried by the lower end of a vertically movable and turnable rod-like guide which can be moved up and down by a single-acting fluid-operated motor in cooperation with two springs or sets of springs. When the guide reaches its lower end position, the motor causes a conical end face at the lower end of a split sleeve to engage a complementary conical face at the upper end of a fixed guide member for the guide, whereby the sleeve clampingly engages the guide and locks it to the stationary cylinder of the motor so that the second knife is fixedly held at the selected level for any desired interval of time.

Abstract: A web slitting machine for cutting a web or roll of material includes an upper carriage assembly joined to a lower blade holder assembly by a selectively removable guide key which is milled to provide a predetermined cant angle for the blade. The blade is lowered into position by a piston which is rectangular and includes a torsion-resisting sleeve to prevent rotation of the piston about its vertical axis. A pneumatic control provides a plurality of control modes whereby the blade may be raised and lowered with or without locking the upper carriage assesmbly to its transverse bar and vice-versa. A unique side shift adjustment is provided whereby the blade may be shifted to a half-stroke position and the upper carriage locked when the blade is positioned against a lower knife. This ensures that the pressure of the blade against the knife is the pressure exerted at the mid point of the stroke.

Abstract: This invention relates to a process and an apparatus for cutting and trimming printed circuit board workpieces, particularly printed multilayer circuit board workpieces, which are cut to an exactly predetermined, selectable size at high speed in an operation in which the workpieces are subjected only to relatively low stresses. The workpieces are cut and trimmed and are profiled at each of their edges in a single operation. This is accomplished by means of two circular sawblades, which extend in a common plane and have interdigitating sawteeth, which preferably have diamond cutting edges. The interdigitating sawteeth of the two sawblades cut into the workpiece from opposite broadsides and the sawteeth of each of the sawblades penetrate into the workpiece only in part of its thickness.

Abstract: A cutting device for a board machine is disclosed. The board machine includes at least two parallel shafts. One shaft is mounted by eccentric assemblies which vary the center line of rotation of the shaft. A first cutter head is mounted on that shaft and a mating cutter head is mounted on the other shaft. The first cutter head includes a first cylindrical member having external teeth which mate with a second cylindrical member having internal teeth. The mating cutter head mounts a slotting knife and a cross knife, while the first cutter head mounts an adjustable knife. The eccentric assemblies eccentrically move the shaft to reorientate the first and second cylindrical members to move the adjustable knife relative to the slotting knife to cut or score boards of different thickness while maintaining a desired spacing between the cross knife and an anvil surface defined by the second member.

Abstract: Slitting shears for sheets and strips of metal. The shears include knife rollers which support circular knives and are adjustable for adjusting the overlap of the knives. The gaps between the knives are adjustable by means of spacer sleeves arranged on the rolls between the circular knives. The slitting shears further include a bending control unit for the knife rollers for keeping constant the adjusted knife overlap and knife gaps. The bending control unit makes it possible to prevent positional changes of the cutting edges of the circular knives under load, so that cut edges without burrs can always be produced independently of the cutting forces. Bending of the knife rollers can be compensated in a controlled manner by sensing the bending of a knife roller.

Abstract: In an apparatus for cutting a metal sheet, a pair of hollow shafts are mounted in a housing for angular movement relative thereto. The hollow shafts have respective hollow bores whose respective axes are eccentric to the axes of the respective hollow shafts. A pair of holder shafts are rotatably fitted respectively in the hollow bores. A pair of circular cutting blades are mounted respectively on projecting forward ends of the respective holder shafts in concentric relation thereto for rotation with the respective hollow shafts. When the holder shafts are rotated to rotate the cutter blades, the cutter blades cooperate with each other to cut a metal sheet caused to pass between the cutter blades. An interlocking unit is arranged between the hollow shafts, for enabling the hollow shafts to be moved angularly about their respective axes in an interlocking fashion, thereby moving the axes of the respective holder shafts toward and away from each other to adjust an amount of lap between the cutting blades.

Abstract: A punching and longitudinal cutting device for rotary folders includes two pairs of opposite web feeding rollers fixedly arranged on shafts. One shaft in a first pair carries an edge trimming blade and a punching or perforating blade and is adjustable in radial direction relative to the other shaft by means of cams controlled by a control shaft. The angular position of the cams is adjustable so that the one shaft can be adjusted either in parallel or in an inclined position relative to the other shaft. The other shaft is axially adjustable relative to the frame. The other shaft supports a counter blade cooperating with the edge cutting blade, a counter roll and a carrier for supporting two coplanar counter rolls cooperating with the punching or perforating blade. The coplanar counter rolls are axially displaceable on the carrier and held in a fixed position relative to the frame.

Abstract: A slitter holder has a slitter blade support rod that can be moved relative to a stationary position. The slitter holder comprises a moving mechanism for moving the slitter blade support rod relative to the stationary portion between a slitter blade operation position and a slitter blade rest position, and a clamping mechanism for clamping the slitter blade support rod to the stationary portion when the slitter blade operation position.

Abstract: A box to separate rolled stock, having a frame, an inlet guide, a pair of specially shaped rolls, and a device that, with one activation, can adjust both rolls in order to change the distance between the centers of the rolls.

Abstract: A flat-rolled metal product cutting apparatus comprises a support installed at the side of the travel line of a flat-rolled metal product, a first and a second chock attached to the support to rotatably support an arbor of a first and a second rotary knife, and a first and a second circular rotary knife, each having the shape of a cylinder or truncated cone, attached near the front end of each arbor. The two rotary knives are disposed in such a manner that the circular knife edges of the two rotary knives meet at the cutting point, with a slight clearance left therebetween, and the axis of rotation of one rotary knife is inclined in a plane containing the axes of rotation of the two rotary knives and also that two planes each containing the axis of rotation of each rotary knife and the cutting point are inclined with respect to each other. The paired circular rotary knives of the flat-rolled metal product cutting apparatus makes a cut along the length of the flat-rolled product that travels forward.

Abstract: A slitting machine of the type having a pair of spaced, parallel arbors and at least one pair of mating rotary knives, each arbor carrying one mate of each pair of rotary knives, each rotary knife being positioned in a desired axial relationship with its mate on the other arbor, this desired relationship being maintained by manual or automatic control of the relative positions of the arbors by rotatably mounting at least one end of at least one arbor in a slideable sleeve which may be cam driven in both axial directions. Axial backlash is reduced by maintaining the arbors in compression with a spring loaded tailstock.

Abstract: Circular cutter shears are provided with an upper circular cutter shaft inclined towards the surface of the plate and a horizontally mounted lower circular cutter shaft. In order to prevent narrowing of the cutter clearance and jamming in the cutting engagement, the inclined upper circular cutter shaft is swung, with its end remote from the cutter, by an offset angle .beta. opposite the direction of feed of the plate.

Abstract: In a booklet binding machine a flat cover signature is added in leading edge register to a single or collated signatures moving in a travel path prior to saddle folding. The signatures are passed as a unit to a stitching station to be jogged and center stitched. Overlapping pairs of arbor mounted rotary slitting blades at opposing sides of the travel path head and tail trim the signatures during its movement by feed rollers between the pairs of slitting blades. The uppermost arbor and blades are angularly rotated at a greater speed than the lowermost blades to insure a clean cut of the signatures. Cooperating presser rings on the arbors cooperate with the slitting blades prevent buckling of the signatures and strip tail-out of the trimmed edges thereof. Bearings mounting the uppermost presser rings on the upper arbor allow the uppermost rings to rotate at the rate of travel of the lowermost rings.

Abstract: A system for trimming the edges of a metal strip and chopping the trimmed metal into small pieces. The system includes an automatic twin-edge trimmer, two chutes fastened to the trimmer and a scrap chopper. The twin-edge trimmer comprises two sets of coacting rotary slitter knives, one set for each edge of the strip and a backup roll adjacent to each knife in order to hold the strip flat while the cuts are being made. There are two mirror image chutes, each of which receives trimmings from one edge of the strip. Each chute is shaped and fastened to the trimmer in such a way that it completely surrounds the trim cut by the edge trimmer. The chutes are inclined downwardly at an angle with respect to the plane of the strip that matches that of the trimmings. The scrap chopper receives trim from both chutes and cuts the trim into small pieces. One edge trimmer is mounted for lateral movement with respect to the strip during trimming to provide an "on-the-fly" adjustment in the width of the strip thus trimmed.

Abstract: A rotary knife holder for a longitudinal slitter in which a rotary knife disc 8 is displaceable relative to a second rotary knife disc 10, co-operating therewith, by separate pneumatic cylinders 12 and 14 to which air is supplied by a common controllable feed line 26 against a resilient restoring force initially radially and then axially. To achieve instant response, to permit the feed speed and feed force for the cylinder 14 to be as independently adjustable as possible and, in addition, to avoid any slip-stick effect in the axial feed movement, an adjustable reducing valve 38 is connected prior to the cylinder 14. This reducing valve 38 is double-acting and is filled with a damping fluid which, during the feed stroke, is expelled through a throttle member 50 into an air vessel 52.

Abstract: A scroll-type slitting machine of the type having upper and lower arbors, each having a plurality of mating rotary cutting members, a movable housing rotatably supporting ends of the upper and lower arbors, a fixed housing rotatably supporting opposite ends of the upper and lower arbors, and a mechanism for vertically adjusting at least one of the arbors relative to the other, includes the improvement which consists of a pinion stand mounted outboard of and adjacent one of the housings, upper and lower intermeshing, synchronizing gears rotatably mounted within the pinion stand, and upper and lower torque-transmitting couplings extending between and operatively joining the upper and lower synchronizing gears to the upper and lower arbors, respectively, while permitting relative movement between the arbors.

Abstract: Web severance is effected between non-contacting radially opposed severance points of circular edges on rotary upper and lower members between which continuously running paper web to be slit is engaged, the space between the severance points being sufficiently less than the thickness of the paper web and so related to the physical properties of the web as to cause severance of the web as a result of web fiber failure separation fracture at the point of maximum compression.

Abstract: A holder for a roller slitting knife is provided comprising a first selectively-operable piston assembly including a first piston and a first piston cylinder housing. The first piston has a non-circular, cross-sectional portion preferably configured as a curved triangle of constant diameter received in the mating bore of the housing. A second selectively-operable piston assembly including a second piston and a second piston housing is mounted to the first assembly and disposed for operation in a direction transverse to operation of the first piston assembly. A roller slitting knife is mounted to the second piston assembly whereby the knife is selectively positioned for operation upon selective operation of the first and second piston assemblies.

Abstract: Rigid support for adjustable slitter blade heads enables permanent factory setting of slitting overlap and the rake and toe-in angles. The upper blade is mounted on its blade head for both radial and axial movement relative to the lower blade without requiring resetting of the blade overlap and rake and toe-in angles. The blades are replaceable without requiring resetting of the blade cutting overlap and rake and toe-in angles. Full adjustment of the blade supporting heads across the web path is provided for. Setting efficiency is greatly improved.

Abstract: A slitter and readily removable head includes a drive housing and an idle housing projecting from a base with the arbors for the slitting knives extending between the housings. The lower arbor is journaled in vertically movable blocks with a jack system in the base thus moving the lower arbor. The idle housing and arbors are movable on the base as a unit away from the drive housing so that the idle housing and arbors may readily be removed and replaced. The lower arbor journal block of the idle housing includes a T-slot socket engageable with one or more jacks at a certain horizontal position so that arbors of different length may be employed. The idle housing and arbors forming the removable head contain no gearing, jacks, jack drive connections or fluid or electrical lines requiring connection or disconnection. A turntable may be employed to move the disconnected head to a storage or retooling location.

Abstract: A shredder includes a pair of blade assemblies operated at high speeds to receive and shred paper material, such as notes or coupons. The blades of the assemblies are disposed to contact and overlap each other. Means are provided to control the amount of overlap and loading of the blades.

Abstract: An automatic cutter positioning device in a gang slitter consisting of a frame assembly having an upper frame including rails, a lower frame including rails, and side frames. Cutter heads are slidably mounted to the upper and lower rails. Cutter shaft journalling cases are vertically slidably mounted on each cutter head. Spline shafts journalled by the side frames provide driving force to the cutter shafts through gears and belts. The cutter heads are moved so that the forward head moves faster then the rearward head.

Abstract: Rotary die cutting apparatus having novel structure for achieving registration of the die roller and base roller in terms of axis parallelism and rotational positioning is disclosed in the context of apparatus for cutting and scoring cardboard in the manufacture of boxes.

Abstract: The device includes a frame, a pair of circular blades having overlapping peripheral portions, and means for conveying tree lengths transversely toward the blades. The conveying means cooperate with a first blade to move the tree lengths to the overlapping peripheral portions of the blades where they are subject to a shear cutting action.

Abstract: A device for the longitudinal cutting of webs comprises two hollow shafts, each bearing a blade, and supported on a respective spindle. One spindle is supported eccentrically in a frame so that its rotation sets the inter-axis spacing of the two shafts, whereby the blades may be engaged and disengaged in the radial sense. The same spindle is displaceable axially whereby the blades may be engaged and disengaged in the axial sense. Both operations are performed by means of one and the same handle. Means is also provided for displacing simultaneously both spindles in the axial directions in order to position the blades relative to the web.