Abstract: A sheet cutter includes: a stationary knife including a straight blade part formed in a straight-line shape in a longitudinal direction; a movable knife including a cutting edge part formed in the shape of V-character, opposed to mesh with the straight blade part of the stationary knife, the movable knife being able to freely move toward or back from the stationary knife; a movable knife pressing member for pressing the movable knife against the stationary knife; and a movable knife driver driving the movable knife forward or backward. The movable knife pressing member pressure contacts the movable knife against the stationary knife by a compression coil spring contained inside the movable knife pressing member.

Abstract: A separation apparatus for separating two planar devices bonded together by an adhesive layer is provided. The separation apparatus includes a base, a sliding module, a cutting member, and a positioning stage. The sliding module is mounted on the base. The cutting member is connected to the sliding module and is moveable in a two-dimensional plane with respect to the base by the sliding module for cutting the adhesive layer. The positioning stage is mounted on the base for positioning the planar devices and the adhesive layer therebetween on the base.

Abstract: A vehicle visor measuring and cutting apparatus generally comprised of a measuring component, an implement holder, a handle, and a contour guide. The adjustable implement holder is positioned along a portion of window film on a windshield relative to the contour guide, which juxtaposes the windshield molding, and is moved across the windshield, measuring or cutting a portion of window film to the desired dimensions and compensating for any contours and arcs in the windshield.

Abstract: A throat plate blade guide for insertion into the work table of a band saw. The blade guide first includes a plate having a blade slot to permit a band saw blade to travel therethrough. The plate additionally has opposed blade guide structures juxtaposed with the blade slot on opposite sides of the band saw blade to limit lateral motion of the band saw blade. In the preferred embodiment, the blade guide also includes blade guide adjustors for adjusting the distance between the respective blade guide structures and the band saw blade.

Abstract: The present invention relates to a shearing system. The shearing system includes a die assembly having linear bearings and guide rails for guiding movement of the upper die shoe. Gas springs return the die shoe to the open position.

Abstract: A sawguide positioning method for circular gang saws mounted on a single saw arbor shaft. A guide bar is positioned generally parallel to the saw arbor shaft. A plurality of sawguide pairs are slidably mounted on the guide bar for longitudinal axial travel thereon. The guides extend on either side of each of the circular saws. A pair of opposed sawguide positioning wedges are threadably mounted on a selectively rotatable shaft having a right hand threaded end and a left hand threaded end, the axis of the shaft being generally at right angles to both the saw arbor shaft and the guide bar. The wedges are threaded on to the selectively rotatable shaft with their vertices innermost. The threaded shaft has an enlarged diameter portion or disk intermediate the threaded ends which is rotatably positioned within matching recesses in the opposed faces of the sawguides.

Abstract: A device for positioning sawguides for circular gang saws includes a first shaft rotatable about a first axis, an annular gear having an outer surface and a concentric threaded inner surface and rotatable in a first plane about a second axis, the first plane generally perpendicular to the second axis, the first shaft rotatably engagable with the outer surface of the annular gear wherein rotation of the first shaft about the first axis rotates the annular gear about the second axis, the annular gear journalled on and coaxial with a second shaft lying along the second axis, a collar slidably mounted on the second shaft and adapted for non-rotational longitudinal sliding along the second shaft, the collar having an outer threaded surface concentric with the threaded inner surface on the annular gear for journalled threaded engagement therein whereby rotation of the annular gear by the first shaft causes longitudinal translation of the collar along the second axis relative to the annular gear, first and second pa

Abstract: A cart (10) for cutting units, especially suitable to be applied to apparatuses for shearing paper, comprises a couple of plate-shaped elements (12, 14), approachable to or removable from one another along the longitudinal axis, and connectable by screws (32, 42 ') to one another.Such plate-shaped elements have a complementary configuration in the respective front portion (18, 34). Couples of screws (42'), which pass through cavities (28) obtained in a plate-shaped element (12), fit in threaded holes (42) obtained on the other plate-shaped element (14), preventing the misalignment of cart (10).

Abstract: A cutting device for cutting scrap metal has a support frame with slide guides connected thereto. A blade slide is vertically slidable in the slide guides along a travel path. A first blade is connected to the blade slide, and a second blade is fixedly connected to the support frame and cooperates with the first blade to perform the shearing action. Elastic elements cooperate with the blade slide such that the blade slide is movable essentially perpendicular to a plane of the shearing action against the bias of the elastic elements to thereby form a wider gap between the first and the second blades.

Abstract: A precision cutting assembly comprises a frame, a material support table mounted to the frame and a cutting blade for cutting sheet stock material. A cutting blade carrier is mounted to the frame for movement along a linear path. Pressure producing elements contiguously hold the cutting blade carrier within precise parallel limits of movement along the linear path. The cutting blade carrier causes the cutting blade to accurately cut precision segments from a sheet of material disposed on the material support table. A precision measuring mechanism includes a precision threaded rod member and an indicating element mounted to move along a linear scale upon rotation of the precision threaded rod member. A circumferential scale has a plurality of marks spaced from a circumferential zero point and spaced to indicate a preselected amount of rod member rotation between adjacent circumferential marks.

Abstract: An anti-splintering system for sawing machines having a saw blade with a plurality of teeth, has components including an anti-splintering device positionable on a workpiece laterally from the saw blade in pressure contact with the latter in the region of the teeth, and at least one positioning device connectable to the sawing machine and supporting the anti-splintering device for a correct operational arrangement of the anti-splintering device in the event of a change in at least one of a cutting depth and an angle of inclination of the saw blade.

Abstract: A saw mill head saw having a thin-kerf circular saw blade whose diameter is in the range of 34 inches to 60 inches mounted in fixed position on a power driven mandrel for rotation therewith. The mandrel is journalled on bearings that can be adjustably positioned selectively to vary the angle of mandrel relative to the direction of travel of a log that moves while being cut. The saw blade is guided by a rigid robust saw guide unit located at the in-feed side of the saw and at a position below a saw cut made during operation of the head saw. The saw guide has a channel or gap portion receiving therein a selected portion of the saw blade and it is provided with a first group of discrete spaced apart blade contact pads and a second similar group with such groups being disposed on respective opposite sides of said saw blade.

Abstract: Disclosed is a power driven circular saw blade and a guide assembly for such blade where the guide assembly includes a pair of guide units mounted respectively one of each of opposite side of the blade. Each guide unit includes a guide housing with a guide block reciprocally mounted therein and having a saw blade engaging portion. A stop limits movement of the guide block at least in a direction of movement toward the blade so that the guide block is normally in non-engagement with the saw blade while the latter is in a smooth substantially vibration free running condition. The guide block is resiliently biasing against such stop preferably by pneumatic pressure. A guide assembly as described is preferably located at the outfeed side of the blade but there may be an assembly at both the infeed and outfeed sides of the blade. The position of the stop if preferably adjustable.

Abstract: A jig or sabre saw has a horizontal foot to be placed on the work to be sawn. A drive unit is pivotally mounted on the foot and drives the tool in a tool holder. The two sides of the saw or other tool are supported by a guide device at points directly above the foot. The guide device is adapted to pivot with the drive unit so support the saw blade even when performing bevel cuts. The guide device and the drive unit may be arranged to pivot about two axes or about a single axis in relation to the foot.

Abstract: An apparatus and method for cutting tubular band stock to produce an elastic band and unbonding the abutting edges of the band is disclosed. The apparatus includes a guillotine-type movable blade which cuts transversely across the tubular stock and band engaging surface proximate the blade which is formed to engage the cut band and shift opposite sides of the stock in a direction along the cut to break any bonds formed during the cutting process. The shifting apparatus is provided by a pair of fingers which engage one side of the band and cooperate with an arcuate surface engaging the opposite side of the band to shift two portions of the band next to the ends thereof toward the middle of the band and thereby effect breaking of the bonds. A reversible blade and reversible shear plate, as well as a lubricating structure and assembly for adjusting the band with which is cut also are disclosed.

Abstract: A table for supporting and guiding diverse portable power tools with precision and safety is disclosed. In one mode of use with a sabre saw, adjustable guide rails for the saw have free-floating engagement with locator posts on the table and rest directly on the workpiece which is being cut. The guide rails at one end can be raised or lowered for precise leveling and locked in the chosen position. Very smooth cutting by the sabre saw is enabled without chattering of the workpiece. In another form of the table there is a second mode of use with a circular saw or router, the guide rails are supported at a fixed height atop the locator posts and above the top surface of the workpiece resting on the table. A workpiece protractor guide on the table enables various cutting angles. Precision cutting of cove molding by a sabre or circular saw is possible by proper angular adjustment of the protractor guide and saw blade.

Abstract: A kit for making O-rings from cord stock material essentially includes a holding fixture for securing the material, a container of bonding liquid and a heating mold. The holding fixture allows the cord material to be cut diagonally in such a fashion that the magnitude of the angle is smaller for cord materials having a smaller diameter. Therefore, there is a larger bonding surface for smaller diameter materials. The O-ring heating mold includes two flat separable heat conductive blocks having a common flat interface. Apertures are located across the interface having cross-sectional diameters that are slightly less than the tube stock cross-sectional diameters. Since the central axis of each aperture is not located directly at the interface one portion will include more than 180.degree. of arc whereas the other portion will correspondingly include less than 180.degree..

Abstract: A blade guide for lapidary saws acts to prevent blade wobble and thus an uneven cut of the resulting slab. The blade guide comprises holder means, mounting means which attach the holder means to the saw table, and guide means which releasably attach to the mounting means to stabilize the saw blade.

Abstract: A mat cutting apparatus is described for cutting sheet material. A cutting board is provided on which a pair of longitudinal guide bars are mounted with a predetermined spacing between them. The spacing is selected to snugly receive a cutting block. The cutting block is formed of a guide block on which a knife assembly is movably mounted. The guide block fits snugly between the guide bars to enable formation of a precision cut when the knife assembly is plunged into a mat to be cut. Several embodiments for cutting mats are shown including straight and angle cutters and a cutter adapted for use with a template.