Abstract: A device for cutting a plate of a pre-determined thickness, preferably a glass plate, includes a frame; a support device for a cutting utensil, which is connected to the frame and adapted to have and upward and downward movement; and a hinged lever system, which has a feeler element and is kinematically coupable with the support device to bind it in a pre-determined initial position with respect to the frame. When the feeler element is pressed against a surface, the hinged lever system causes the support device with the cutting utensil to move downward from an initial position.

Abstract: Provided is a cutter that is applicable to a cutting device with variable structures and that allows exchange of a cutting blade safely and smoothly with a simple structure. The present invention provides a cutter comprising: a slider; a holder member that retains a cutting blade; and a removing-and-installing member that removes or installs the holder member from or into the slider in a condition that the cutting blade is shielded with a cover member, wherein the cover member is provided with a projection portion while the holder member is provided with a groove portion, and when the removing-and-installing member is installed into the slider along with the holder member, the projection portion is adapted to travel in the groove portion so as to expose a cutting edge of the cutting blade through a cutout.

Abstract: A slide-type cutting machine ensures safer operation of cutting wood or the like and can be housed in a compact state. A linear guide unit 3 includes a slide shaft 33 moving in a direction perpendicular to the moving direction of a cutting section 4, a first slide holder 31 for guiding the movement of the slide shaft 33, and a second slide holder 34 located at a lower end of the slide shaft 33 and for restricting the movement of the slide shaft 33 by abutting against the first slide holder 31. A linkage element 5 includes a first link 51 having one end connected to the cutting section 4 and the other end connected to the second slide holder 34, and a second link 52 having one end connected to the first slide holder 31 and the other end connected to the first link 51.

Abstract: A cutting device includes a cutting blade configured to cut a recording medium; a support unit that supports the cutting blade to be movable in an inclined direction with respect to a surface of the recording medium such that the cutting blade is moved toward the recording medium while moving in a width direction of the recording medium; and a movable unit that causes the cutting blade supported by the support unit to be moved in the inclined direction to cut the recording medium.

Abstract: A sheet cutting device includes a cutter including opposed blades to cut a sheet fed along a sheet feed path to the device, a cutter holder holding the cutter and reciprocally movable in a width direction of the sheet perpendicular to a sheet feed direction in which the sheet is fed, and a guide member including a first path to guide the holder in the width direction of the sheet to cut the sheet with the cutter and a second path to guide the holder in the width direction after the sheet is cut. The second path is disposed away from the first path in a thickness direction of the sheet perpendicular to both the sheet feed direction and the width direction of the sheet. When the holder moves along the second path, the holder is retracted away from the sheet feed path in the thickness direction of the sheet.

Abstract: A miter saw includes a base unit, a cutting unit having a rotary cutting blade, a motor for driving the rotary cutting blade, and a housing having a blade cover for covering a part of the cutting blade and a motor housing connected to the blade cover, a supporting unit supported to the base unit for pivotably supporting the cutting unit, the supporting unit being configured to move the cutting unit toward and away from the base unit in a first direction, the supporting unit including a guide unit supported with respect to the base unit, and a sliding unit having a pivot shaft pivotably supporting the cutting unit, the sliding unit being slidable on the guide unit to move between a front position and a rear position in the second direction and the pivot shaft extending in a third direction which is perpendicular to the first and second directions.

Abstract: A cutter assembly for cutting printed media in a printer comprises a housing arranged for displacement across a media path, in a cutting direction at right angles to a media advance direction in the printer, a first rotary cutting blade carried on said housing such as to be positioned generally on the printed side of the media, and a second rotary cutting blade carried on said housing such as to be positioned generally on the side of the media opposite the printed side, the cutting blades being engageable with each other such as to cut the media between them, and the first rotary cutting blade being arranged upstream of the second rotary cutting blade in the media advance direction.

Abstract: A cushioning dunnage producing machine comprises a crumpler, a roll of paper sheet material having a first end at a radially innermost location and a second end at a radially outermost location, the first end fed into the crumpler, the crumpler drawing the paper sheet from the roll and crumpling the paper sheet into cushioning dunnage, and a cutter which travels laterally across the cushioning dunnage to cut the dunnage into a strip of a desired length.

Abstract: The present invention relates to a guide rail assembly for securement of a tube cutting apparatus for cutting of boiler tube walls to a fixed point on a tube wall, while allowing lateral repositioning of a cutting tool relative to the tube wall. The assembly includes a guide rail having a convex surface along which a carriage having a cutting device may be fixedly positioned by mating friction engagement of a concave surface of pairs of linear guide blocks secured to the carriage with the convex surface of the guide rail.

Abstract: The present invention relates to a guide rail assembly for securement of a tube cutting apparatus for cutting of boiler tube walls to a fixed point on a tube wall, while allowing lateral repositioning of a cutting tool relative to the tube wall. The assembly includes a guide rail having a convex surface along which a carriage having a cutting device may be fixedly positioned by mating friction engagement of a concave surface of pairs of linear guide blocks secured to the carriage with the convex surface of the guide rail.

Abstract: A cutter for cutting elongate material into sections, the cutter including a motor coupled to a blade shaft, wherein said motor selectively rotates said blade shaft, a blade mounted on said blade shaft and rotatable therewith, and an actuator adapted to drive said blade along a drive axis toward the material.

Abstract: A cutting workstation which includes a cutter mounted on an arm type configuration. The arm configuration is slidably moveable relative to a divided work piece support table, the cutter moveable between the divided table. The cutter arm contains a cutter drive assembly exhibiting clutch plates mounted on shafts supported by bearings and driven by gears which in turn are driven by a motor. A gear case with shafts, bearings and internal gears allow the direction of the drive train to be altered.

Abstract: A cutting workstation which includes a cutter mounted on an arm type configuration. The arm configuration is slidably moveable relative to a divided work piece support table, the cutter moveable between the divided table. The cutter arm contains a cutter drive assembly exhibiting clutch plates mounted on shafts supported by bearings and driven by gears which in turn are driven by a motor. A gear case with shafts, bearings and internal gears allow the direction of the drive train to be altered.

Abstract: A food product slicer includes a base, a knife mounted for rotation relative to the base and a carriage mounted to the base for reciprocal movement back and forth past a cutting edge of the knife. A lift assist assembly is associated with the base and arranged to push the slicer upward toward an upward tilted position, the lift assist assembly arranged for reducing user input energy required to tilt the slicer upward.

Abstract: A portable sawmill with bi-directional cutting circular saws includes a saw support pivotally mounted to a primary support structure for pivotal movement about a pivot axis which is transverse to the direction of movement. Two circular saws are rotatably mounted one above the other on the saw support. A first one of the two circular saws rotates in a first rotational direction and a second one of the two circular saws rotates in a second rotational direction. The teeth on both of the two circular saws are always moving toward a log resting on the log support as the log is being cut. An actuator is provided for selectively pivoting the saw support to invert the positioning of the two circular saws so that the teeth on both of the two circular saws continue to move toward the log being cut upon a change in direction occurring.

Abstract: The transporting roller, which serves for transporting a web of material which is wound up onto a winding shaft, is provided with a cutting device, which comprises a cutter and a cutter holder. The transporting roller has a groove, in which the cutter is guided. A catching device permits the introduction of the cutter into the groove. The groove is inclined with respect to an axially parallel generatrix, so that the web of material is cut off at an oblique angle.

Abstract: In a perforating apparatus which has a holder to which a perforating blade can be fastened, the perforation is produced via the movement of a piston by the piston pressing against an air cushion, which in turn transmits this pressure to a perforating piston which presses the perforating blade downward. A positioning device which directly varies the position of the piston unit relative to the housing surface is provided for the zero setting of the piston.

Abstract: The invention relates to a cutting subassembly for cutting off front and/or rear edge overhangs of panel-like workpieces. The cutting subassembly includes a saw unit which comprises a motor-driven saw blade which is mounted for displacement between a position above, and a position beneath, the workpiece. A contact element is associated with the saw blade and has at least one contact surface which may be engaged against the front or rear transverse side of the workpiece. The cutting plane of the saw blade may be oriented in alignment with the contact surface. The saw blade may be mounted such that it can be pivoted between a first operating position, in which it is oriented in alignment with the contact surface, and a second operating position, in which it is oriented obliquely in relation to the contact surface.

Abstract: A straight fixed cutter is mounted on a frame, a movable cutter carrier slidably supported on the frame to be moved along the fixed cutter. A movable cutter having a disc shape is rotatably mounted on the carrier, and contacted with the fixed cutter. A movable cutter rotating roller is rotatably mounted on the movable cutter carrier and resiliently contacted with the fixed cutter. An endless belt is provided in the frame along the fixed cutter, and connected with the movable cutter carrier. The movable cutter carrier is moved by the endless belt, and the movable cutter is rotated along the fixed cutter to cut a paper sheet mounted on the fixed cutter.

Abstract: A bale processor for cutting or dicing a bale or slab of unvulcanized rubber produces small cubes or blocks of a predetermined size and uniform shape for continuous feeding at a predetermined rate into a mixing machine or blender. A bale or slab of feedstock rubber is advanced incrementally along a slider platform and a segment is sliced from the leading end of the bale. After separation, the segment falls onto a receiving panel from which it is transferred by a vacuum pick-up head to a vacuum hold-down table. Multiple slices are then formed through the segment along the X-axis by circular cutting blades of an X-axis cutter head, thereby forming elongated segment strips. Next, multiple slices are formed through the segment strips in the Y-direction by a Y-axis cutter head which includes circular cutter blades that are extendable and retractable along the Y-axis.

Abstract: An apparatus for emptying a reel on which a web of material is wound in layers. A frame supports the reel. A carriage is mounted on the frame for reciprocal movement longitudinally in a first direction and in a second direction opposite the first direction over the reel. A knife is mounted on the carriage for movement with the carriage to cut sheets of material from the web as the carriage moves over the reel. A plough removes cut sheets of the material from the reel as the carriage moves over the reel.

Abstract: A sheet cutter for cutting a sheet by shearing. The sheet cutter has a fixed blade, a movable blade which is movable along the fixed blade, and a receiving element which receives a sheet piece which is cut off from the sheet. The receiving element is structured so as to be movable together with the movable blade as the movable blade moves. The receiving element may be structured such that it is translationally movable in a direction substantially perpendicular to the moving direction of the movable blade.

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 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 bale processor for cutting or dicing a bale or slab of unvulcanized rubber produces small cubes or blocks of a predetermined size and uniform shape for continuous feeding at a predetermined rate into a mixing machine or blender. A bale or slab of feedstock rubber is advanced incrementally along a slider platform and a segment is sliced from the leading end of the bale. After separation, the segment falls onto a receiving panel from which it is transferred by a vacuum pick-up head to a vacuum hold-down table. Multiple slices are then formed through the segment along the X-axis by circular cutting blades of an X-axis cutter head, thereby forming elongated segment strips. Next, multiple slices are formed through the segment strips in the Y-direction by a Y-axis cutter head which includes circular cutter blades that are extendable and retractable along the Y-axis.

Abstract: An extendible miter saw is provided having a base (10), an angularly rotatable member (86) attached to a rear end of the base, a saw assembly (40) pivotally mounted to a support block (50), a pair of telescoping arms (70, 72) attached at opposite ends to the rotatable member and the support block, and a wheeled support assembly attached to the support block and movable along an upper surfaces of the base and extension members (26, 28, 30) extending outwardly from the base.

Abstract: In a perforating apparatus which has a holder to which a perforating blade can be fastened, the perforation is produced via the movement of a piston by the piston pressing against an air cushion, which in turn transmits this pressure to a perforating piston which presses the perforating blade downward. A positioning device which directly varies the position of the piston unit relative to the housing surface is provided for the zero setting of the piston.

Abstract: A sheet cutter for cutting a sheet by shearing. The sheet cutter has a fixed blade, a movable blade which is movable along the fixed blade, and a receiving element which receives a sheet piece which is cut off from the sheet. The receiving element is structured so as to be movable together with the movable blade as the movable blade moves. The receiving element may be structured such that it is translationally movable in a direction substantially perpendicular to the moving direction of the movable blade.

Abstract: A cutting machine for cutting long lengths of sheet material, roll material, or web material into predetermined or discrete lengths comprises a frame having a stationary blade extending transversely of the frame and a carriage movable transversely of the material to be cut having a movable blade thereon that cooperates with the stationary blade to cut material. The movable blade is mounted on the carriage so that it can be canted at an angle with respect to the stationary blade during transverse movement of the carriage in one direction and can be oppositely canted at an angle with respect to the stationary blade during movement of the carriage in the opposite direction. In one embodiment, a toggle mechanism is used to cant the movable blade. In a second embodiment, a fluid cylinder is used to cant the movable blade.

Abstract: A cutting apparatus for separating packages from a line of interconnected packages. The technical problem is to simplify the cutting apparatus and shorten the set-up times and the work cycles. This problem is achieved with a lower knife (4) capable of being moved in between the packages in the vertical direction from below and with an upper roll (12) capable of being moved, together with a discharge gripper (11) for the separated packages, parallel to the conveying section while being pressed against the lower knife.

Abstract: The cutting mechanism includes a cutter block mounting a knife blade arranged for movement along a slot in a cutting table. The cutter block is driven by a cable and a first drive pulley. The cable extends under and around the first drive pulley and a second pulley, with the first end of the cable fixed to a second end of the cutter block, and the second end of the cable fixed to a first end of the cutter block. The cable and the first and second pulleys are arranged such that when the cutter block lies between the first end of the slot in the table and a center of first drive pulley the first and second ends of the cable are drawn taut thereby stopping movement of the cutter block along the slot towards the first end, and such that when the cutter block lies between the second end of the slot in the table and a center of the second pulley the first and second ends of the cable are likewise drawn taut stopping movement of the cutter block along the slot towards the second end.

Abstract: The cutting mechanism includes a cutter block mounting a knife blade arranged for movement along a slot in a cutting table. The cutter block is driven by a cable and a first drive pulley. The cable extends under and around the first drive pulley and a second pulley, with the first end of the cable fixed to a second end of the cutter block, and the second end of the cable fixed to a first end of the cutter block. The cable and the first and second pulleys are arranged such that when the cutter block lies between the first end of the slot in the table and a center of first drive pulley the first and second ends of the cable are drawn taut thereby stopping movement of the cutter block along the slot towards the first end, and such that when the cutter block lies between the second end of the slot in the table and a center of the second pulley the first and second ends of the cable are likewise drawn taut stopping movement of the cutter block along the slot towards the second end.

Abstract: The rotary cutting blade is mounted on a cutting machine which dispenses and cuts sheet material. The cutting machine includes a frame for supporting a cutting table top and a dispenser for supporting a roll of floor covering material. The rotary disk shaped cutting blade is mounted on a support block the frame below the table top for movement along a slot in the cutting table. A cable or chain driven rotary drive drives the block back and forth and at the same time provides the rotary motion to the cutting disk in a direction such that a leading edge of the disk moves upwardly relative to the floor covering material as it cuts. The chain passes over a sprocket on the block which carries a clutch so that the clutch slips when the block reaches one end of the slot and allows the chain to continue driving the rotary blade. A rotary sharpening disk is mounted at one end of the slot and is driven by the chain so as to rotate against the blade in a sharpening action while the block remains stationary.

Abstract: The present invention provides a carriage reciprocating mechanism permitting easy reversal of the traveling direction of a carriage without changing the rotating direction of a motor or the traveling direction of an endless belt, and without rotating of the carriage itself, when the carriage reaches the end point of travel. The carriage can reverse the traveling direction thereof at the end point of travel by movement in only one direction of an endless belt stretched between a driving pulley arranged at one end of the frame and a follower pulley arranged at the other end thereof. Particularly, a reciprocating mechanism of a sheet-cutting device may have a carriage or a tool post provided allowing movement across a sheet to be cut relative to a frame. A rotary blade of the sheet-cutting device is supported by bearings on the tool post.

Abstract: An egg case cutting apparatus for use in a refrigerator is disclosed. The apparatus is comprised of a pocket for accommodating the egg case, a guide rail disposed along a longitudinal direction of the pocket, a body being formed with a guide hole through which the guide rail passes, and a cutting member installed in the body. When the body is moved, the edge of the egg case is inserted into the body and is cut by the cutting member. The cut part is discharged outside through a discharge port formed on the body.

Abstract: An edging and curve-sawing saw has a selectively skewable sawbox, skewable to a workpiece infeed path so as to receive workpieces translated longitudinally along the infeed path and into the sawbox. The sawbox rotatably supports a saw arbor. A plurality of saw blades are slidingly mounted on the saw arbor in a parallel laterally spaced array. The saw blade array spacing is selectively adjustable device mounted to the sawbox. The array is slide on the arbor relative to the sawbox according to an optimized profile.

Abstract: Apparatus is provided for cutting a plate-like member, having a cutter head and a bridge frame for supporting the cutter head movably in the X-direction. The bridge frame is supported at opposite side ends thereof and is movable in the Y-direction on a base. A moving device is provided for linearly moving the cutter head in the X-direction, and a moving arrangement is provided for linearly moving the bridge frame in the Y-direction. The moving arrangement includes a linear motor disposed on the one end of the bridge frame and a second linear motor disposed on the other end of the bridge frame. A control device is provided for operating said first and second linear motors synchronously with respect to each other.

Abstract: An ampule dispenser having a carrier for transporting plastic ampules arranged side by side and series-connected together in a strip in a longitudinal direction, a guide plate provided over a delivery end of the carrier for holding down the strip of series-connected plastic ampules, receiver for receiving the plastic ampule at the head of the strip fed from the delivery end of the carrier, and an ampule separator for separating the ampule at the head of the strip along a separating line provided between adjacent ones of the ampules.

Abstract: A screw shaft supporting structure capable of absorbing elongation of a screw shaft due to changes in environmental temperatures irrespective of the position of the rotary blade on said screw shaft is disclosed. In the sheet material cutting device, that portion of the screw shaft which is supported by a bushing and another portion thereof supported by a frame end absorbs elongation of the screw shaft due to heat. When the supporting member holding the rotary blade is positioned at A in FIG. 1, elongation of the screw shaft due to thermal expansion is absorbed in a gap formed between the stepped portion of the screw shaft and the frame end. When the supporting member holding the rotary blade is positioned at B in FIG. 1, elongation of the screw shaft due to thermal expansion is absorbed in a gap S1 formed between the stepped portion of the screw shaft and the bushing.

Abstract: An apparatus for forming a tab portion on a thin laminated sheet having work stations for scoring the sheet on a forward edge along a line to form the tab portion. The tabbing station includes a shuttle member having a pair of spaced rollers, one with a cutting edge and the other being a backing roller. The edge to be scored is passed between the rollers, such that the cutting roller as it traverses the length scores the sheet by a controlled amount which is determined by the preselected spacing between the cutting edge and the backing roller, whereby the unscored portion remains the same thickness regardless of the thickness variations of the sheet.

Abstract: A portable tube cutting apparatus which facilitates smooth, even cuts through a boiler tube-wall includes a frame supporting a movable carriage, a motor driven cutting tool secured to the carriage, and an articulated support means which allows for rotation of the cutting apparatus about a fixed point of securement to the boiler tube-wall and thereby permits lateral repositioning of the cutting apparatus relative to the point of securement to the boiler tube-wall. The apparatus has the advantage of permitting relatively long cuts such as up to about 3 feet to be made in a tube-wall While reducing the amount of time and effort needed to install and set up such apparatus relative to conventional track mounted apparatuses.

Abstract: An apparatus for cutting a belt-shaped member includes: a lower blade; a cutter; a holder for supporting the cutter; a carriage for revolving the holder about an axis of revolution intersecting an axis of rotation of the cutter by maintaining a very small angle to the axis of rotation of the cutter; a revolving mechanism for revolving the holder about the axis of revolution to cause the cutter to undergo precession about the axis of revolution, a direction of inclination of the cutter being set such that, when the belt-shaped member is cut from one side toward other side of the lower blade, a side of the cutter on the other side of the lower blade is located closer to the lower blade, while when the belt-shaped member is cut from the other side toward the one side of the lower blade, a side of the cutter on the one side of the lower blade is located closer to the lower blade; and a moving mechanism for moving the cutter and the holder along the lower blade.

Abstract: A carriage having rotary cutter wheels is mounting for reciprocation on a frame adapted to be rigidly secured to a pipe casing which is desired to be split along a line parallel to its axis. A hydraulic motor is mounted to the frame at one end of the carriage. A rotary crank driven by the motor is coupled to an arm which is also coupled to drive the carriage in a reciprocating motion. An adjustable hydraulic valve controls the speed of the motor, and thus the speed of the cutter. An adjustable stabilizer is mounted to the frame to stabilize the cutter by bracing against the carrier pipe within the casing.

Abstract: A paper cutting device provided in a facsimile machine, copier, printer, or the like for cutting paper discharged from a roll at a predetermined length. The paper cutting device includes a stationary cutter (2), a movable cutter (5) and movable carriage (3) to which the movable cutter is secured and which is movable along the stationary cutter (2) so that the stationary cutter in cooperation with the movable cutter cut the paper. The stationary cutter (2) extends in the lateral direction of the paper which is supplied to the paper cutting device. The carriage (3) includes a front plow portion (33a) for guiding the paper to a cutting position where the stationary cutter (2) and the movable cutter (5) overlap. When the carriage (3) traverses to cut the paper, the paper is urged toward the cutting position by the front plow portion and is cut. Thereafter, the cut portion of the paper is separated from the carriage 3 at a curved concave portion 33d of the carriage.

Abstract: An apparatus and method are provided for cutting a sheet of material into a plurality of segments having curved edges. A sheet of material is placed on a frame having a horizontal support member. A clamping device secures the sheet and a first mechanism moves the clamping device and sheet in an axial direction. A cutting head assembly is provided with a passively rotatable knife adapted to cut the sheet as the sheet moves in an axial direction past the knife. The cutting head assembly is rotatable about a vertical axis and movable in a lateral direction perpendicular to the axial motion of the sheet. A second mechanism moves the cutting head assembly in said lateral direction, and a third mechanism rotates the cutting head assembly. To produce a continuous cutting line, a controller sends a signal to the first, second, and third moving mechanisms which simultaneously moves the corresponding components at a desired rate and distance.

Abstract: A saw apparatus for automatically sawing pieces of material at various predetermined lengths and angles includes a power saw mechanism, a rotatable saw mechanism mounting structure, a motor for rotating the mounting structure, a translational power saw moving mechanism, powered anchoring mechanisms for anchoring the pieces of material during sawing, a mechanism for longitudinally positioning the pieces of material relative to the power saw mechanism for cutting at desired lengths, a power supply and power supply connecting mechanism for delivering power to the mechanism for longitudinally positioning the pieces, to the powered anchoring mechanism, to the power saw mechanism, to the motor for rotating the mounting structure, and to the translational power saw moving mechanism, switches for controlling the flow of power through the connecting mechanism, a computer and program for the computer for operating the switches so that at least one piece of material is longitudinally positioned by the mechanism for long

Abstract: Disclosed is an apparatus and method of fabricating tank wrap of desired thickness having fibers oriented generally in the thickness direction from lengths of insulation material having fibers oriented generally in the length direction. The method comprises several sequential steps. The first step is positioning the lengths of insulation material lengthwise along a first movable track conveyor, such that the fibers are oriented generally parallel to the direction of conveyance as the lengths progress downstream in a longitudinal direction along the conveyor. Second step is severing the insulation material completely across the length, at intervals equal to the desired thickness of the tank wrap to be fabricated. Next the cut lengths of insulation material are positioned lengthwise across a second movable track conveyor such that the fibers are now oriented generally perpendicular to the direction of conveyance, and in an abutting relationship.

Abstract: A cutter assembly for cutting sheets of relatively thin material is disclosed. The cutter assembly comprises a base member, a pair of support posts securely attached to the base member, and an elongated guide rail having a first end and a second end supported by the support posts in laterally spaced relation to the base member. A cutting strip is securely retained by the base member for receiving the sheets of material thereon. There is a cutter head slidably mounted on the elongated guide rail, and a cutting wheel operatively retained in rotatable relation by the cutter head. A spring biasing means biases the cutting wheel toward the cutting strip such that the cutting wheel is received in intimately contacting relation against the cutting strip. The cutting wheel moves along the elongated guide rail so as to intimately contact the cutting strip along the length thereof, so as to thereby permit cutting of the sheets of material when they are between the cutting wheel and the cutting strip.

Abstract: An apparatus for allowing a craftsman to make uniform cuts in building material. The apparatus includes a hand-held electrically operated circular saw as well as a slide for guiding the building material in a first direction. First and second members are used for guiding the circular saw in a second direction. The craftsman is thereby able to repeatedly make uniform cuts in building material by manually sliding the building material on the slide and then moving one of the members in the second direction so as to cause the circular saw to cut the building material.

Abstract: The apparatus comprises a housing having a pair of opposed side walls closed at their upper edges by a panel spanning the side walls with the panel being slotted between the side walls and depressible at least in the areas of either side of the slotting. Below and in line with the slot is mounted a rodless cylinder operable by air pressure deliverable at one end or the other of the cylinder as determined by a control device mounted on one of the side walls adjacent one end of the slot. A cutting element extends upwardly from the carrier of the rodless cylinder to move therewith. An arm is pivotably mounted on the opposite side wall from the central device and in line with the slot so that when the arm is brought down onto any sheet disposed on the top panel along the slot line, the arm depresses the sheet and underlying areas of the panel and simultaneously triggers the control device to move the cutting element along the slot to sever the sheet pressed down to meet the cutting element as it so moves.