Abstract: A tool-holder column for a unit for converting a flat substrate that has two upper bearings (14, 16) each for supporting one end of an upper rotary tool (10), and two lower bearings (15, 17) each for supporting one end of a lower rotary tool (11), the flat substrate being movable longitudinally between the upper rotary tool (10) and the lower rotary tool (11), the bearings (14, 15, 16, 17) being vertically movable in opposite directions on either side of the longitudinal direction (L) of movement of the flat substrate, and a common drive for the bearings (14, 15, 16, 17) allowing the bearings (14, 15, 16, 17) to be moved simultaneously by one and the same distance in opposite directions, and including a screw device (25), the bearings (14, 15, 16, 17) being mounted one above another on the screw device (25) such that the rotation of the screw device (25) causes the linear movement of the bearings (14, 15, 16, 17) in opposite directions.

Abstract: A cutter cassette for a packaging machine, the cutter cassette includes a blade shaft on which at least one longitudinal cutting blade is arranged. The blade shaft can be transferred in a reversible manner from a transporting position into an operating position by lowering the blade shaft relative to a housing. The lowering of the blade shaft takes place under gravitational force.

Abstract: A blade attachment system includes a tool mount adapter for attaching the blade attachment system to a toolholder of an oscillating tool, a blade holder plate for supporting a blade, a clamping assembly for clamping the blade to the blade holder plate in a clamped position, and a locking mechanism for locking the blade in the clamped position.

Abstract: A blade attachment system includes a tool mount, a blade holder plate attached to the tool mount adapter; and a clamping assembly attached to the blade holder plate. The clamping assembly includes a plurality of fixed clamping positioned adjacent to at least one of the lateral edges of the blade when the blade is placed on the blade holder plate and including tapered surfaces configured to overlap the lateral edges of the blade and at least one movable clamping pin that is movably mounted to the blade holder plate, the movable clamping pin being configured to move with respect to the blade to move the lateral edges of the blade into engagement with the tapered surfaces of the clamping pins.

Abstract: A slitting apparatus mountable to a web handling apparatus, for slitting a thin web of a first width into plural ribbons each of width less than the first width. The slitting apparatus may comprise at least one enclosed motorized rotatable blade mounted on a rotatable shaft and a stationary base which is screw mountable to the web handling apparatus. The blade is movable between a slitting position for slitting operations and a service position spaced away from the slitting position, for blade replacement. A step-down gearset reduces blade rotational speed from the motor speed. A manual shifting element comprising a manual lever and a cam effects change between the slitting and service positions. The blade may be entirely ceramic or ceramic coated. A roller shaft may be located proximate the blades to maintain tension on the web and to obstruct direct access to the blades for safety purposes.

Abstract: A machine for slitting metal sheet into strips includes a fixed upper beam and a lower beam that is displaceable vertically. Both beams support slitter heads that move along the beams. Each beam carries an arbor that rotates in it and extends through the slitter heads on it. Each beam also has a fixed threaded shaft and lock rods that extend through the slitter heads on it. Each slitter head carries a ring-like knife that rotates with the arbor for its beam. Each slitter head also has a motor-driven nut that engages the threaded shaft extending through the beam and, when rotated, moves the slitter head along its beam. The slitter heads have clamps, which clamp down on the lock rods to secure the slitter heads in fixed positions. The knives rotate about axes that are skewed slightly relative to the axes of the arbors that drive them.

Abstract: The present application provides a clamping device for a cutting member having a rotating sleeve and a quick clamping body. The clamping device has a first sun gear arranged in the center of the rotating sleeve, a first stage planetary gear having multiple planetary gears cooperating with the first sun gear, and a second stage planetary gear having multiple planetary gears cooperating with a second sun gear arranged on the planetary carrier. An inner ring gear may also be arranged outside of the first and second stage planetary gears and the head of the quick clamping body. Also, the clamping device of the present application does not need a special tool to remove the saw blade, which may lower the required effort to allow for the clamp to clamp the saw blade more quickly and more reliably.

Abstract: A multi-cutter cutting device is composed of a chassis having a guide channel, a rotary member rotatably mounted to the chassis and located at one end of the guide channel, and a plurality of cutting units. Each of the cutting units includes a shell mounted to the rotary member, and a cutter rotatably mounted to the shell and having a cutting edge protruding downward from a bottom side of the shell. Each of the cutting units can be moved along with the rotary member and along a radial direction of the rotary member to be separated from the rotary member and then can continue to move along the guide channel. In light of the above, the cutting device is structurally simple and can be easily manufactured and assembled. Besides, the cutting device is flatter to be easily packaged and stored.

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: One aspect of the present invention includes a ripsaw stabilizing device that has a moveable carrier arm subassembly, a hold-down subassembly, a hold-down support engaged to the moveable carrier arm subassembly and a force applying subassembly engaged to the hold-down subassembly and the hold-down support that applies downward force such that downward force is applied to a piece of material being cut on both sides of the blade. Another aspect of the present invention includes a method for making a glue-line quality cut without further processing of the material being cut and without the use of a sacrificial material. Yet another aspect of the present invention includes a ripsaw including one or more ripsaw stabilizing devices of the present invention.

Abstract: A cutting unit (1) for cutting sheet material (13), the cutting unit comprising a sheet support (2) and at least one roll cutting device (4) associated with a sheet support (2), the roll cutting device comprising a support rail (5), at which a cutting carriage (6) is movably supported, which comprises a blade support (20), which is rotatably supported about an axis parallel to the support rail (5) and rotatable by hand, and at which blade support at least two disk blades (36, 37, 38) are supported freely rotatable about blade axes (39-44), which extend perpendicular to the rotation axis of the blade support (20), wherein the disk blades (36, 37, 38) are configured to be brought from a respective inactive position into a cutting position protruding in the direction towards the sheet support (2) by rotating the blade support (20), and wherein a locking device is provided, which supports the blade support (20) in the cutting position of a disk blade (36, 37, 38), wherein the locking device is configured as form

Abstract: An anvil drum for a rotary cutting apparatus having a rotary axis comprises an axle on each axial side of the anvil and concentric with the axis. Each of the axles is adapted to receive a bearing, and an anvil surface substantially concentric with the rotary axis. A reference portion is provided including an axial reference surface coaxial to the axis and a radial surface perpendicular to the axis. At least one connection device is provided for connecting a cover member on each axial side of the anvil so as to cover the bearing, respectively. An anvil assembly is further provided with such an anvil drum and the bearings, each cover member being provided with a blind opening adapted arranged coaxially with respect to the axis.

Abstract: A blade housing for an electronic cutting apparatus includes an outer housing having a distal end, an inner housing coupled to the inner housing and longitudinally selectively adjustable relative thereto and a blade rotatably coupled to the inner housing with a sharpened distal end. Adjustment of the inner housing relative to the outer housing adjusts an amount of the blade that protrudes from the distal end of the inner housing.

Abstract: A blade clamp assembly for retaining a rotary blade on the arbor of a rotary tool includes a blade washer for engaging the blade to hold the blade on the arbor and a clamp assembly threaded into the arbor to clamp the blade washer against the blade. The clamp assembly includes a planetary gear system for transmitting torque applied to the clamp assembly to the blade washer, wherein the planetary gear system multiplies the torque transmitted to the blade washer so that the torque transmitted to the blade washer is greater than the torque applied to the clamp assembly.

Abstract: Embodiments of a power miter saw of the type which has an upper fixed blade guard and a lower swinging blade guard for covering the lower reach of an installed blade when the saw is in its rest position and for exposing the lower reach of the saw blade when moved to its operational position, the saw comprising an elongated linkage mechanism interconnecting a frame support and the lower blade guard for moving the lower blade guard in response to movement of the saw between the rest and operational positions, such that the lower blade guard covers the lower reach of the blade when the saw is in its rest position and uncovers the blade when the saw is moved to its operational position, the linkage mechanism being configured to have an adjustable length and be placed in at least first and second positions wherein the first position enables normal movement of the saw between its rest and operational positions, and the second position wherein the lower blade guard is raised to expose a blade arbor to facilitate cha

Abstract: A paper cutter with changeable cutter holder includes a slideway support, a slideway, a worktable support, a cover, a control block, and a changeable cutter holder. The slideway is placed under the slide-way support. The worktable support providing with the changeable cutter holder is placed on the slideway, and the control block is placed on the cover provided on the workable support. The present invention ensures it couldn't happen to hurt user's hand during changing cutter, so it is safety and reliable, and convenient for changing cutter.

Abstract: A longitudinal cutting machine having an upper blade held and displaceable on a first longitudinal guide, and a lower blade that is associated with the upper blade, the lower blade being held on and displaceable along a second longitudinal guide. A displacement device is associated with one of the lower blade or upper blade, and is provided with an extendable driving rod that bridges a gap to that longitudinal guide that holds the other of the upper blade and lower blade. The driving rod acts on the other blade such that the displacement device displaces the upper blade and lower blade together. A guide mechanism is disposed on the driving rod and acts on that longitudinal guide that holds the other of the upper blade and lower blade.

Abstract: A trimmer having a trimmer housing is disclosed. In accordance with at least some embodiments, the trimmer housing includes a first housing portion and a second housing portion, the first housing portion being pivotally connected at least indirectly to the second housing portion. The trimmer additionally includes a cutting platform having a first platform connected at least indirectly to the first housing portion and a second platform connected at least indirectly to the second housing portion. The trimmer is configured wherein the second housing portion is substantially stationary and the first housing portion rotates approximately in a 180 degree range of motion from a close position to an open position, such that a flat and continuous cutting surface formed by the first and the second platforms is obtained.

Abstract: A rotary trimmer having multiple rolling blades is provided with a knob for being rotated to drive a blade holder in a blade holder recess to rotate so as to shift the rolling blades. The blade holder recess and the blade holder are mutually positioned by spring elements and positioning recesses. Besides, the knob can be retained from rotating by a latch.

Abstract: A table saw for cutting materials, such as, for example, porcelain tiles, ceramic tiles, stone and glass. The table saw includes a base and a working table slidably positioned on the base. The table saw further including a power tool detachably mounted to the base and having a separate utility apart from the table saw. The power tool including a cutting element that extends at least partially through a slot in the working table. The working table movable along the base and with respect to the cutting element.

Abstract: A system for engaging and locking the cartridge on the body of a cutter holder adapted to equip machines for the industrial cutting of flexible laminates, comprising a slider with a dovetail profile on the lower portion of the cutter holder body, the head portion of the cartridge being provided with a slot with a profile complementary to the profile of the slider for engagement of the cartridge on the cutter holder body, elements for locking the cartridge on the cutter holder body, and a lever for actuating locking elements, which comprise at least one movable element, which applies a symmetrical force with an upward traction component on both sides of the complementary profile of the slot.

Abstract: An apparatus for feeding and slitting soft goods has multiple slitting systems with respective slitting blades mounted on a cross rail. A slitting blade positioning system is movable parallel with the cross rail and operable to move slitting systems along the cross rail. A material feed motor is connected to a feed roller and operable to move the soft goods past the slitting system. A control is first operable to cause the slitting blade positioning system to successively move slitting systems to desired positions on the cross rail. Thereafter, the control operates a slitting blade motor to rotate slitting blades and the material feed motor, thereby moving the soft goods past the slitting blades.

Abstract: Drive unit with a rotating saw blade which is hinged inside of a protective hood, for connection to a robot, shaped by an enclosure that can be connected to the robot in which a shaft is positioned, by means of which the saw can be powered under intermediate connection to a gearbox. The saw blade is held between two firmly connected internal rings which are arranged on both sides of the saw blade and contain it, as well as being connected to each other. The rings are rotatably mounted within non-rotating external rings that are connected to the protective hood. The device that is formed by the saw blade, the internal rings and the external rings is fastened in a removable way to a drive hub that is powered by the gearbox.

Abstract: A worktable includes a frame pivotally attached to a housing, a holder pivotally attached to the frame, a saw blade having a spindle rotatably attached to the holder, and a guide member attached to the spindle of the saw blade for guiding the work piece after being cut by the saw blade. A casing is secured to the frame and includes an outlet for coupling to a vacuum device. A follower is pivotally attached to the casing, for adjustably supporting the guide member, to allow the guide member to be adjusted relative to the frame and the housing. A positioning device may be used for positioning the spindle of the saw blade to the holder, to allow the saw blade to be attached to and disengaged from the holder.

Abstract: A cutting system that includes a rotary blade cartridge that can be interchangeably used with a variety of cutting tools is disclosed. The cartridge houses a rotary blade assembly that is maintained in a secure and safe retracted state and that can be activated when the cartridge is inserted into a cutting tool. Activating a plunger of any of the cutting tools causes a piston of the rotary blade assembly to move the blade to an operative cutting position protruding from an aperture provided in the cartridge housing. Deactivating the plunger causes the blade to be return to its retracted and inoperative position within the housing. Cutting tools of the invention include rail cutters such as a primary workstation and a compact workstation, circle cutters, elliptical cutters, and freeform cutters. Each cutting tool is capable of receiving a rotary blade cartridge. Cartridges are freely interchangeable between the cutting tools.

Abstract: A blade clamp assembly for retaining a rotary blade on the arbor of a rotary tool includes a blade washer for engaging the blade to hold the blade on the arbor and a clamp assembly threaded into the arbor to clamp the blade washer against the blade. The clamp assembly includes a planetary gear system for transmitting torque applied to the clamp assembly to the blade washer, wherein the planetary gear system multiplies the torque transmitted to the blade washer so that the torque transmitted to the blade washer is greater than the torque applied to the clamp assembly.

Abstract: A method and unit for transversely cutting cigarette portions or similar on a filter assembly machine, whereby a cigarette portion is fed transversely through a cutting station to intercept a rotary circular blade, which is maintained in a work position by an arm mounted to oscillate about an axis parallel to the axis of rotation of the circular blade, so as to move the circular blade between the work position, a store for worn circular blades, and a store for new circular blades.

Abstract: An electric power tool has a motor-driven circular tool that can be clamped by means of a clamping device. A mechanical braking device (2) serves to brake the tool. A safety element (4) prevents improper handling of the electric power tool. In a safety position, the safety element (4) prevents the motor from being turned on and activates the braking device (2). In a release position, the safety element (4) allows the motor to be turned on and the braking device (12) is released. An additional locking mechanism prevents that a clamping lever, needed to actuate the clamping device, can be actuated in the clamped state in the safety position. In the release position of the safety element, the locking mechanism is unlocked.

Abstract: A knife holder is provided which can be readily disassembled and maintained while remaining in a knife bank. Fasteners keep the cylinder housing and blade housing securely connected and are aligned parallel to the longitudinal axis of the knife holder for easy access while in the knife bank. The fasteners can be removed using a manual driver without the necessity of removing the knife holder bank from the web equipment.

Abstract: A dicing machine including a flange cover which covers the blade and is divided into two such that a first cover is openable. An interlock device is provided so that a blade attaching and detaching device cannot be attached when the first cover is at the closing position, the first cover cannot turn to the closing position when the blade attaching and detaching device is attached, and the processing of the work is not started when detected radiation of a blade breakage detector, attached to the first cover, is not reduced by a predetermined amount. Consequently, the blade and the work are prevented from being damaged by processing the work without applying coolant, the mechanism of the dicing machine and the blade attaching and detaching device are prevented from being damaged without detaching the blade attaching and detaching device, and the work is prevented from being being unprocessed.

Abstract: A wrenchless clamp assembly is provided to secure a tool disc, such as a circular saw blade, to a shaft of a power tool. The blade clamp assembly includes an outer flange positionable against an outer side of the blade and a manually tightenable click bolt that includes a movable click member operable to selectively engage the outer flange for rotationally locking or unlocking the bolt. In an embodiment, the click member moves alternatingly between axially engaged and disengaged positions according to sequential rotational increments of the click member relative to the bolt body. Accordingly, the click bolt can be installed by hand and rotationally locked without a need for high torque, and the click bolt can be easily removed by hand when the click member is moved to the disengaged position, axially free from the outer flange. In an embodiment, the click bolt permits limited torque applied during installation.

Abstract: A locking assembly for a portable, engine-powered, hand tool, such as a clearing saw. To facilitate removal and installation of a rotatable cutting tool (13), a rotatable shaft (11) driving the cutting tool is locked against rotation by a movable locking pin (17) of magnetic material that is secured in a locking position by a magnet (19) carried by a housing of the tool supporting the rotatable shaft.

Abstract: A device for attaching two units (17,18) provided for rotation in unison about an axis, having axial and radial attachment of the units relative to each other. The attaching involves first engagement members (28,29) engageable with each other and provided on the first and second units, the engagement members being arranged to cause engagement with each other by radial relative moment between the units (17,18).

Abstract: With a blade exchanging device, a cylindrical body is engaged with a nut that is fastened to a spindle, and at the same time the nut is held by fitting nails of a chuck member with grooves that are formed on the nut. Next, a torque wrench is inserted through the cylindrical body, and a polygonal head of the torque wrench is engaged with a polygonal hole formed in the head of the spindle. In this state, the spindle is rotated with the torque wrench in a direction to unfasten the nut from the spindle. The nut is thereby detached from the spindle. When the cylindrical body is disengaged from the spindle, the nut is prevented from falling off the cylindrical body, since the nails of the chuck hold the nut.

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 device (1) is provided for slicing loaves and similar bakery products. The device includes a stationary frame (2) including a support (4, 5) for supporting the loaves or bakery products. A blade carrier (10) holds a plurality of thin elongate cutting blades (11) at spaced locations with respect to one another. Each blade includes a cutting edge (13) for cutting the loaves or bakery products. The device includes a blade carrier drive (51-56, 65-68) which provides for first and second movement of the blade carrier. A cleaning mechanism (70, 71) is provided for cleaning the cutting blades.

Abstract: A machine tool has a work table which defines a working surface and has a cutting tool which is attached to and movable with respect to the work table. The position of the cutting tool with respect to the working surface is controlled by a mechanism which elevates the cutting tool with respect to the working surface and angulates the cutting tool with respect to the working surface. The cutting tool is mounted to a support plate which is pivotably attached to the work table. The elevating mechanism includes a threaded rod and a nut which engages a pivoting link. The pivoting link also engages the cutting tool. Rotation of the threaded rod pivots the link which in turn raises and lowers the cutting tool. A spring biases the cutting tool towards its lower position to remove play between the components. The angulating mechanism includes a lever, two cams and a locking rod. Rotation of the lever moves the locking rod longitudinally due to the action between the two cams.

Abstract: A circular saw and in particular a circular saw bench, including a supporting surface for a workpiece and a saw blade which is able to project from a groove in the supporting surface. The saw blade is pivoted to both sides at a longitudinal edge of this groove.

Abstract: The invention relates to a device and method for processing of sheet-shaped materials comprising a first module having a first sheet-processing mode, a second module having a second sheet-processing mode, the first module being interchangeable with the second module within a common space. The sheet-processing modes include, without limitation, punching, cutting, embossing, creasing, folding and perforating, without limitation, alone or in combination. The first and second modules may be interchanged manually or automatically.

Abstract: The present invention comprises additional embodiments in a circular saw aligning device which is not only easily releaseable but also entirely removeable from functioning engagement with either a specially made or prior art portable circular saw. An abutting assembly of the device rotates from an engaging position to a non-engaging position so the saw can be used without interference. This rotation is also the first step in removing the device entirely from the saw. The invention allows use of the circular saw when the saw blade is positioned at an acute angle with respect to the base plate. The invention also allows the user to easily and releasably lock the workpiece abutting piece out of the way.

Abstract: The device for cutting sheet material length-wise includes a knife holder assembly which can be linked to a cutter bar. The knife holder assembly has a support body and a cutter head which carried a circular cutting knife and which can be adjusted vertically in relation to the support body. The knife holder assembly also has a connecting plug assembly for connecting the support body to the cutter head. The direction of connection extends in the plane of the circular cutting knife.

Abstract: A bank cutter positioning device installed in a cutter seat at a side having a dovetail groove comprises a locking block, an elastic element, a roller and a handle. The locking block having an end pivotally installed above the dovetail groove. The elastic element installed between a resisting surface of the seat and a locking block. The roller pivotally at another end of the locking block. Therefore, by moving the handle, the roller of the locking block will move circularly on the sliding surface and curved surface at the lower side of the handle so as to control the releasing and locking operation of the locking block. The roller causes the driving distance between the locking block and the handle to reduce to suit a dovetail seat with a contact surface having a small tilt angle, and has the effects of rapid positioning and detaching.

Abstract: A sheet material cutting device includes a base having two brackets, two arms pivotally secured to the brackets, a track secured between the arms and rotated in concert with the arms relative to the brackets, a seat slidably engaged on the track and movable along the track, and a cutter blade secured to the seat. The cutter blade may be forced toward the base in order to forcefully and effectively cut the sheet materials. A board detachably secured to the base, and a plate selectively secured to the board for increasing the surface for supporting the sheet materials.

Abstract: A machine tool has a work table which defines a working surface and has a cutting tool which is attached to and movable with respect to the work table. The position of the cutting tool with respect to the working surface is controlled by a mechanism which elevates the cutting tool with respect to the working surface and angulates the cutting tool with respect to the working surface. The cutting tool is mounted to a support plate which is pivotably attached to the work table. The elevating mechanism includes a threaded rod and a nut which engages a pivoting link. The pivoting link also engages the cutting tool. Rotation of the threaded rod pivots the link which in turn raises and lowers the cutting tool. A spring biases the cutting tool towards its lower position to remove play between the components. The angulating mechanism includes a lever, two cams and a locking rod. Rotation of the lever moves the locking rod longitudinally due to the action between the two cams.

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: An ultrasonic seam welding apparatus for seam welding at least two sheetlike work pieces piled one above the other by imparting ultrasonic osculation is expressed through the ultrasonic binding and cutting quill assembly. The ultrasound seaming and cutting apparatus comprises a receptive resonant horn or wheel for receiving a rotating anvil wheel and a cutting surface thereon. An apparatus and receiving component having overlapping surfaces and welding the components together with the use of ultrasound. An ultrasound emitter and wheel receives the high frequency current and converts it into mechanical ultrasonic vibrations having the same frequency.

Abstract: A machine tool has a work table which defines a working surface and has a cutting tool which is attached to and movable with respect to the work table. The position of the cutting tool with respect to the working surface is controlled by a mechanism which elevates the cutting tool with respect to the working surface and angulates the cutting tool with respect to the working surface. The cutting tool is mounted to a support plate which is pivotably attached to the work table. The elevating mechanism includes a threaded rod and a nut which engages a pivoting link. The pivoting link also engages the cutting tool. Rotation of the threaded rod pivots the link which in turn raises and lowers the cutting tool. A spring biases the cutting tool towards its lower position to remove play between the components. The angulating mechanism includes a lever, two cams and a locking rod. Rotation of the lever moves the locking rod longitudinally due to the action between the two cams.

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: A machine tool has a work table which defines a working surface and has a cutting tool which is attached to and movable with respect to the work table. The cutting tool extends through a removable throat plate. An integral arbor wrench is provided which is accessible when the throat plate is removed. The wrench is designed to engage the arbor shaft to facilitate tool changing by preventing rotation of the arbor shaft. The wrench is also designed to not allow reassembling of the throat plate when the wrench is in engagement with the arbor shaft.