Abstract: The present invention is configured such that an adjustment nut for fixing spacers and blades repeatedly fitted to a shaft is provided with at least two concentricity adjustment screws, and, with the spacers and the blades fixed by the adjustment nut, the spacers and the blades are pushed by the concentricity adjustment screws in the direction of the shaft to enable concentricity adjustment, and thus, without causing defects, the blades are protected and can be used for a long time. In particular, according to the present invention, while one side shaft with respect to a diagnostic sheet is elastically supported, position adjustment in the longitudinal direction thereof is possible, and also projections are formed on the peripheries of the surfaces of the spacers facing the cutting edges of the blades thus to provide extra spaces for the blades in which the blades move, thereby preventing the deformation of cut strips and the damages on the blades.

Abstract: An improved detachable cutting assembly used in a food cutting machine includes a rotating disc with a window and a pivot hole. A flap is connected radially to the rotation axis of the cutting machine by its insert ring. The insert ring includes a fixing area in which at least one nut is embedded and on which there is at least one fastening hole coinciding with the at least one nut, and a lifting wedge on which a blade is partially embedded, leaving the cutting edge of the blade protruding on the upper face of the rotating disc through the window of the rotating disc. Existing in the fixing area of the rotating disc, there is at least one fastening hole coinciding with the at least one fastening hole and the at least one nut of the flap and capable of fixing the whole assembly by linking elements.

Abstract: A cutting device includes a drive mechanism for causing displacement of a cutting blade toward a cutting position on a securing member side which pinches a route with the cutting blade provided for each route of a fiber bundle. The drive mechanism includes a plate-shaped movable unit provided for each of the cutting blades, to which the cutting blade is attached, a support unit supporting the movable unit to be displaceable and facing the movable unit in a plate-shaped part, a permanent magnet provided on one side in the movable unit and the plate-shaped part, and an exciting coil provided on the other side. The permanent magnet and the exciting coil are provided so that the movable unit is displaced as the exciting coil is excited.

Abstract: A stand-alone apparatus for cutting a web of media or tag stock into individual units for use downstream of a printer. The apparatus may cut vinyl, plastic, or RFID stock material in both back and forth directions. The apparatus comprises a housing, a carriage assembly and a movable cutter assembly. The cutter assembly is easily interchangeable and comprises a cutting element such as a wheel blade, and a pressure adjusting element for adjusting the amount of pressure applied by the cutting element to the stock material. Alternatively, the cutter assembly may be manufactured with a predetermined pressure load, but still permit an operator to adjust the depth of cut. The apparatus may be powered by and or in hardline or wireless communication with a printer, or may further comprise a computer microprocessor, memory and user interface to function wholly independent from a printer.

Abstract: A medium-cutting device includes a medium-conveyance section to convey a medium in a medium-conveyance direction, a cutter to cut the medium conveyed by the medium-conveyance section, and a pushing part to push up a piece of the medium that is cut from the medium with the cutter.

Abstract: A tool change device (12) for working apparatus (10) of longitudinal shearing machines adapted for working on paper, cardboard, plastic films, various coupled materials, aluminum, fabric, non woven, glass fiber, carbon fiber and similar materials, wherein mechanical elements are provided for quick coupling/centering and extraction with translatory movement between a tool or blade holder head (16) and a tool holder (28) and with provision for a direct and quick feed of compressed air.

Abstract: This invention provides a slitter assembly with automated adjustment of slitter elements that allows for driven rotation of elements on the associated drive shaft during operation while enabling the elements to be moved freely along the drive shaft during setup and subsequently secured to the shaft free of lateral movement. This ensures that adjustment of the slitter elements is accurate, repeatable and reliable. In an illustrative embodiment, the slitter elements each comprise a pair of coaxial members including a blade member and a locking member. The blade member contains a slitter blade and overlies the locking member which is nested therewith. The locking member directly engages the drive shaft surface with a wedge assembly structure. The members are spring-loaded with respect to each other so that the two surfaces are normally biased to cam together and exert a hoop stress on the drive shaft.

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: A lumber trimmer is disclosed wherein only one pair of parallel spaced-apart trim saws is mounted at one or both ends of a shaft. Each pair of trim saws is laterally movable along the shaft parallel to the longitudinal axis of lumber in the lumber trimmer. Each saw of the pair of trim saws is operably coupled with an actuator such that each saw is selectively vertically movable to trim the lumber. The pair of trim saws may be mounted to a carriage. A second actuator is operably coupled with the pair of trim saws for selectively laterally translating the pair of trim saws along the shaft.

Abstract: Longitudinal slitting machine having associated upper and lower knives. Knife holders for the upper knives are supported on a crosspiece. A knife head is carried by a lowering mechanism and supports an upper knife in the form of a circular knife, the lowering mechanism including a piston having a piston rod for the knife head. A path of movement of the circular knife into a cutting position is delimited by an abutment, and a depth adjuster fixes the cutting position when the knife head is lowered. A setting instrument indicates the position of cutting edges of the upper knife relative to the lower knife with reference to the true diameter of a new circular knife. The depth adjuster is positioned in conformity with a position value determined by the setting instrument.

Abstract: An apparatus for slitting a web moving along a path in a transport direction has a support transversely shiftable relative to the web adjacent the path, a drive shaft extending transversely of the direction adjacent the path and substantially nonmovable transversely of the path, and a drive gear on the support rotationally coupled gear to the drive shaft and shiftable along the shaft. A mount shiftable toward and away from the shaft on the support carries at least one driven gear and a driven blade fixed to and rotatable with the driven gear. Another blade is juxtaposed with the driven blade and flanks the path therewith. An actuator can shift the mount between a cutting position with the blades closely juxtaposed and the driven gear meshing with the drive gear and a retracted position with the blades separated and the driven gear out of mesh with the drive gear.

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: A vertically adjustable web slitter is adapted to be supported by a track of a web-slitting machine, and comprising an input port adapted to receive pressurized fluid. Also, a control assembly is adapted to controllably transmit the pressurized fluid into any one of a set of first fluid passageways. A cylinder is adapted to receive the pressurized fluid from one of the first fluid passageways. A piston, having a first end and a second end, is set into the cylinder and is adapted to be driven within the cylinder by the pressurized fluid. Further, a set of actuators that are adapted to be driven by pressurized fluid are separated by the piston and cylinder from the set of first passageways. Finally, the piston defines at least one second fluid passageway extending from the first end to the second end. A first flexible hose connects each second fluid passageway to a first fluid passageway and a second flexible hose operatively connects each second fluid passageway to one of the actuators.

Abstract: A trimming apparatus for metal strip has trimming heads on opposite sides of a turntable along each edge of the strip so that the trimming heads can be rotated into the trimming position or into the maintenance and blade-replacement positions. On each of the turntables as well a scrap-strip cutter is associated with the respective trimming head and the scrap-strip cutters are disposed diagonally opposite one another across the turntable and each trimming head and its scrap-strip cutter on one side of the turntable is connected to a clutch half on the opposite side of that turntable so that the scrap-strip cutter and the trimmer are driven by a common drive.

Abstract: A slitter knife system for facilitating efficient changing of cutting knives upon a slitting machine. The slitter knife system includes a main housing, a chuck housing movably positioned within the main housing, a plunger member movably positioned within the chuck housing, an arbor member rotatably attached about a portion of the chuck housing for receiving an upper knife, a clamp member positioned adjacent the upper knife, and an outer bearing attached to a distal portion of the plunger member. Utilizing a source of air pressure, a user is able to draw the plunger member inwardly so that the outer bearing forces the clamp member tightly against the upper knife. When replacement of the upper knife is required, the user releases the air pressure and a spring engaging the plunger member forces the same outwardly to allow for removal of the clamp member thereby providing unobstructed access to the upper knife.

Abstract: A longitudinal cutting machine having a plurality of blade holders disposed on at least one traverse that extends over the length of the longitudinal cutting machine is provided. So that the blade holders can each be removed independently of one another from the traverse, the individual blade holders are releasably mounted by two spaced-apart claws on associated profiled members that are mounted on the traverse. One of the claws is movable relative to the blade holder and can be fixed in position by means of an adjusting unit. When the adjusting unit is loosened, then by pivoting of the blade holder about one of the two claws, which pivoting is made possible by a deflecting movement of the movable claw, the other claw is released from the associated profiled member and the blade holder is removable from the traverse.

Abstract: In a web slitter of the type used for cutting continuous webs of material, such as paper, a top slitter assembly features a hub cylinder attached to its frame. The hub cylinder supports a freely rotating hub to which the top blade of the web slitter is mounted. The hub cylinder may be raised and lowered with respect to the slitter frame so that the top blade may be lowered to, and raised from, its cutting position. A toggle support is clamped to the hub cylinder while a pin holder is attached to the slitter frame. A toggle is attached to the toggle support in a pivoting fashion. Housed within the pin holder is a sliding pin and a compression spring. The compression spring resists the movement of the pin towards the hub of the web slitter. The pin may be extended so that it engages a notch in the hub. When the hub cylinder is raised, the toggle may be pivoted so that it abuts the end of the engaged pin against the action of the compression spring. As a result, the pin is maintained in engagement with the hub.

Abstract: Rotary knife apparatus used in connection with a pouch form, fill and seal machine capable of handling a substantially wide range of pouch sizes or variations in pouch fills. The apparatus includes major and minor knife hubs cantilevered on respective shafts and driven by a continuous backwrapped chain or timing belt. Rigid knife blades are mounted to interchangeable knife blocks on the major knife hub having varying radial dimensions to accommodate varying pouch chordal distances. The minor knife hub is laterally adjustable relative to the major knife hub along a fixed path to accommodate the substantial changeover.

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: A stackable compact knife cutting assembly employing an elongated pneumatic piston/piston rod assembly wherein the elongated piston member is provided with an elongated preformed elastomeric piston ring member disposed in a groove portion thereof and wherein a cutting assembly includes a housing member and arm portions having a slot for receiving a shaft of the rotating knife member and a bearing surface for guiding and contacting bearing surfaces of the knife member to maintain the perpendicular plane thereof to the rotating axis of the cutting knife member.

Abstract: A perforator has a perforator disk rotatably seated in a U-shaped bearing bracket. The bearing bracket is movable into and out of the path of movement of a piece to be perforated by a piston-cylinder unit which is actuated from either side of the piston. The piston-cylinder unit is housed in a fastening element which can be connected to a machine frame. The bearing bracket has guide bolts which extend into the fastening element to secure the bearing bracket against rotation in respect to the fastening element. The fastening element comprises a cylinder having a blind bore extending from the side of the fastening element facing the U-shaped bearing bracket in which a piston having seal rings is sealingly guided in a displaceable manner.

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 slitter moving mechanism includes an upper and a lower blade unit with an upper and lower blade respectively, the upper blade being movable between a slitting position to slit a web in a feed direction and a retracted position wherein the web can pass between the blades without being slit; a supporting member vertically and laterally movable within predetermined ranges and rotatably supporting the upper blade, a biasing member for upwardly biasing the supporting member and generating a coupling force for laterally moving the upper blade in a separating direction away from the lower blade; and guide member for restraining lateral movement of the upper blade in the separating direction beyond a predetermined distance and for guiding the vertical movement of the supporting member between the slitting and retracted position; the upper blade unit including a lowering device for lowering the supporting member and for generating another coupling force to swing the upper blade into contact with the lower blade, the

Abstract: Upper blade holder intended for shear cutting of materials that run in a plane by means of a revolving pair of blades, wherein the toe-in angle of the upper blade can be set by means of a control prism. The upper blade holder comprises an upper blade journalling supported from both sides of the blade, which said journalling can be replaced without tools. The upper blade holder further comprises a protective cover of the upper blade, which said cover can be replaced without tools. This blade cover, together with the frame of the upper blade holder, encloses the upper blade and the lowering arms for the upper blade journalling. Moreover, the upper blade journalling comprises an actuator, by means of which the blade is displaced to the cutting position.

Abstract: A machine for cutting filing folders to provide identification tabs which includes the use of two rollers, a cutter roller and an anvil roller. The cutter roller has a plurality of surface cutters spaced circumferentially to cut identification tabs selectively at each end and centrally of a folder. The anvil roller has clearance areas, and also an anvil area which will cooperate with one of the surface cutters depending on the circumferential orientation of the cutter roller. The machine provides for a gear drive for the rollers and a mechanism for lifting and adjusting the orientation of the cutter roller to effect cutting of the file edges with one of the surface cutters.

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: The invention relates to a device for reducing the thickness of an edge (2) of a board web (3) or board sheets, comprising a cutting blade (1); and structure for supporting, positioning and rotating the cutting blade and for guiding the edge (2) to be thinned with respect to the cutting blade (1). To provide a mechanically simple device construction of good adjustability, the cutting blade (1) is disclike; and the edge guide comprises a lower roll (4) and structure (5) for tightening the edge to be thinned against the lower roll.

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 assembly 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: 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 assembly 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: 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: An improvement in cutters used in the field of paper manufacturing consisting in that the support-bearing for the knife is connected to a raising and lowering device through a structure elastically deformable and able to impart elastically opposing movements to the knife. These movements are essentially motions of torsion which allow compound movements thereby providing continuous engagement between the knives and the counter knives during rotation. Said elastic structure consists of at least one rectangularly shaped elongated blade formed of steel.

Abstract: A machine for slitting metal sheet has a bridge-type frame provided with upper and lower beams supported on posts. In the space between the two beams are upper and lower powered arbors and also upper and lower storage arbors which align respectively with the upper and lower powered arbors. Each powered arbor supports and turns several knives which are mounted on hubs along those arbors, and these knives when not needed may be moved, along with their hubs, onto the aligned storage arbors. Each knife is captured in a carriage which moves along one of the beams and contains back-up rollers which bear against the knife to prevent its arbor from deflecting under the spreading force exerted by the metal sheet as it is slit. The hubs have a wide stance, and accordingly the knives on them do not acquire a wobble when the hubs are secured on their respective arbors; yet notwithstanding the wide stance, the knives may be brought quite close together.

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: The present invention is related to an improvement to machines or equipments performing the cutting and/or the creasing of materials in a laminar form, used in different fields. This invention is characterized by systems or means including, in association with a bearing structure and at least an operative unit, means to regulate the flow rate of a pressurized fluid, and means to regulate and adjust the sliding guides subject to wear, particularly for torsionally stressed parts. This invention is also related to means suitable to secure good protective conditions and an airtight seal.

Abstract: Apparatus for cutting sheet material such as cloth as the material lies on a supporting surface having opposite sides comprising an elongated track adapted to extend across the supporting surface between the sides, the track having an operative surface over which the sheet material lies during cutting thereof, and a cutter operatively associated with the track for movement in opposite directions along the track for cutting the material.

Abstract: A slim knife unit includes a guide member having an L-shaped body which supports an elongated fluid actuator comprising a piston connected by piston rods to a base member having a sliding track connection to a removable knife holder. The knife holder has spaced walls defining a slot which receives a circular knife supported by a bearing mounted on a spacer bushing clamped between the walls by a center support screw. The guide member has a linear track which cooperates with the rods to guide the knife holder, and a releasable latch secures the knife holder to the base member. The guide member also has a linear track which guides a clamp member movable by a screw for securing the knife unit to a support bar.

Abstract: In a copier with a copy sheet output slitter for slitting the copy sheets outputted by the copier into a selected plural number of smaller sub-sheets cut in the direction of movement of the outputted copy sheets, and wherein the output slitter also optionally provides uncut copy sheet output, and provides a transport path for both cut and uncut copy sheet output, the improvement wherein the output slitter comprises a plurality of first generally cylindrical metal rollers rotatably driven on a first shaft and a second plurality of generally cylindrical metal rollers on a second shaft parallel to and spaced from the first shaft, the spacing and the diameters of these rollers being such that the first rollers interdigitate the second rollers, the first and second rollers having sharpened opposing radial end surfaces selectively forming paper slitting shears therebetween by end-abutting selected ones, or none, of the first and second rollers by selective movement of rollers along the axis of at least one of the s

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 slitter apparatus for cutting a continuous web is disclosed comprising a slitter blade and a slitter mounting bracket. The bracket comprises a threaded depth-post assembly, a spring unit for maintaining the desired tension at the cutting surface, and a dove-tail spring-loaded base.

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: An apparatus and method for cutting a flexible hose which has an axially extending helically wound reinforcing wire during continuous forming of the hose around a mandrel are provided wherein the apparatus comprises, means for determining length increments of the formed hose, a pair of cooperating cutters for cutting the formed hose based on each determined length increment with the cutters comprising a rotary cutter for cutting the flexible portion of the hose and a chisel cutter for cutting the wire of the hose and with the cutters being operatively connected to the determining means, a first and a second fluid powered cylinder for operating the cutters, first connecting means operatively connecting the first cylinder to the rotary cutter, second connecting means operatively connecting the second cylinder to the chisel cutter, and control means for sequentially actuating the cylinders in response to each determined length increment of the formed hose.

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: This cutting carriage for manufacturing pneumatic tires, comprises improvements allowing high-resistance steels to be cleanly cut at the smallest angles. The cutting carriage is characterized by a geometry allowing the ideal cutting conditions to be brought together for all types of fabric: large-diameter cutting disk, pivotable mobile assembly, optimum fixed clearance angle in all cases. The support mechanism during the cutting travel, and the disengagement mechanism during the return travel are provided by pneumatic members.

Abstract: A device cuts vertically fed paper against a cutting edge by means of a carriage driven cutting wheel. There is a chute means downstream from the cutting edge and secured to a pivotable guideway bar, rotated by movement of the carriage during cutting operation. The paper is held against the cutting edge during cutting on one side by the chute means which tilts the paper to be cut toward a deposit tray and on the other side by a pivotable flap biased by a pressure roller mounted on the carriage. In the non-cutting mode, the flap and chute are substantially coextensive to help provide a gap-free pathway for paper being fed into the device.

Abstract: A corrugated paperboard slitter has at least one rotatable shaft with a plurality of slitter or scorer heads slideably received on the shaft. A means is provided adjacent each of the shafts for positioning heads individually or as a group by way of a shifter. A mechanism moves the shaft between an operative slitting or scoring position and an adjusting position wherein the heads can be engaged by the positioning means.

Abstract: Apparatus for trimming the end portion of a pneumatic tire carcass ply when the ply is mounted on a carcass building drum includes a cutting tool movable radially with respect to the drum and a backing roller that swings in and out of a position behind the end portion of the carcass ply. The backing roller thus provides a firm back-up for the cutting tool while it is cutting the carcass ply, but the roller can be swung to and out-of-the way position while other operations are performed on the carcass.

Abstract: An apparatus for the longitudinal cutting into stripes of a tape of sheet material fed to be forwarded continuously while it is pinched between a blade and a counter-blade; said blade is a circular disc idly pivoted on a first supporting structure and said counter-blade is a ball supported to turn about its own center by a second supporting structure.

Abstract: Apparatus for cutting a running web of paper or the like has a rotary disk-shaped first knife and a driven counterknife. The first knife is rotatable on a shaft which constitutes the piston rod of a double-acting pneumatic cylinder and piston unit. The cylinder of such unit is connected with a second piston rod forming part of a single-acting cylinder and piston unit. The control system for the two units includes a shutoff valve which can admit compressed air to the single-acting unit whereby the pressure in a first conduit which connects the source of compressed air with the single-acting unit rises when the second piston rod reaches an end position in which the marginal portion of the first knife overlaps but is remote from the marginal portion of the counterknife. A second conduit thereupon admits compressed air to the double-acting unit in order to move the first knife axially against the counterknife.

Abstract: Apparatus for cutting paper sheets wherein a first knife, which is freely rotatable on a shaft, is movable sideways toward and away from a driven counterknife. The shaft is reciprocable in a carrier which is connected with one end of a reciprocable and turnable piston rod. The piston rod extends into a cylinder and is reciprocable by a spring and a membrane-like piston. The orientation of the first knife with respect to the counterknife can be changed by turning the piston rod with reference to the cylinder so that the piston rod can assume and is held in any one of several angular positions. To this end, the piston rod is rigidly connected with a radially extending projection which is disposed between two rollers mounted in the cylinder for movement at right angles to their axes. One of the rollers is biased against one side of the projection by a helical spring, and the other roller is movable at right angles to its axis by an adjusting screw which meshes with the cylinder.