Abstract: A trim coping apparatus includes a support frame having an upper support and a plurality of legs attached thereto. A cutting assembly includes a saw blade and motor for rotating the saw blade. A panel is mounted to the support frame. The panel has a planar upper surface and the saw blade extends above and below the upper surface. The panel and the cutting assembly are movable with respect to each other to allow a portion of wall trim extending over an edge of the panel to be cut by the saw blade. A control guide is in communication with the panel and is configured to follow contouring on a face of a piece of guide trim to restrict movement of the panel and the cutting assembly with respect to each other to allow the cutting assembly to cope an ending of the piece of wall trim.

Abstract: A coping apparatus facilitating a coped or straight cut through molding by using a stylus to trace the molding being cut to guide the cutter with adjustability for wall-to-ceiling, wall-to-floor, wall-to-wall, and/or backcut angles is presented. The apparatus includes a rotatable holder assembly, a rotatable cutter assembly, a rotatable platform, and a base element. The rotatable holder assembly includes a two-axis positioning system and allows for adjustment to left or right, straight or coped cuts and wall-to-wall angles. The rotatable cutter assembly is attached to the two-axis positioning system and allows adjustment to the left or right, straight, or cope cuts and backcut angle and further includes a motor driven spiral cutter, a cutter holder, and at least one stylus. The rotatable platform allows adjustment to the wall-to-floor or wall-to-wall angle and is movable so as to rotate or swivel about a vertical axis substantially perpendicular to the rotational axis of the holder and cutter assemblies.

Abstract: A copy milling device for the production of in particular dental workpieces, comprising a carrier plate for a model body and a shaping blank, an arm which is arranged pivotably about a horizontal axis extending substantially normal to its longitudinal direction and which has a motor-driven machining tool for cutting shaping of a workpiece from the shaping blank and a tracing device for tracing the model portion, wherein the machining tool and the tracing device are mechanically and synchronously movably connected, wherein the copy milling device comprises a suspension device for the arm.

Abstract: A table with a working surface has a parallel rail on each side of the working surface. A slide assembly includes a shaft with ends and a pair of brackets. Each bracket has a hole. The holes receive the ends of the shaft. The slide assembly includes cylindrical tunnels. The tunnels slidably receive the rails. An operating assembly has primary and secondary arms. Each arm has a free exterior end and an interior portion. The interior portion is coupled to the shaft. A router is secured to, and depends from, the free end of the secondary arm. Control mechanisms include a scribe. The scribe is secured to, and depends from, the free end of the primary arm. Movement of the primary arm and scribe with respect to a template will cause corresponding movement of the secondary arm and router with respect to work pieces to be routed.

Abstract: The present invention is directed to enhancing the accuracy with which tooth restorations are performed, including the manner by which a tooth is prepared and fit with a dental prosthetic, such as a crown or bridge. Further, the present invention is directed to reducing the skill-dependent tasks associated with tooth restoration, including root canals, while at the same time, improving the precision with which these procedures are performed and by aesthetics of the prosthetic. By improving the accuracy of restoration procedures, any need to repeat these procedures for a given patient can be eliminated and patient comfort can be improved. In addition, by improving the precision with which a prosthetic is prepared for attachment to the prepared tooth of a patient, and/or fit to patient, durability and longevity of the prosthetic are improved.

Abstract: A coping device includes a circular blade, a template having an end with a coped profile, a stylus which traces the coped profile of the template and which preferably has substantially the same width and radius of curvature as the blade, and a base having a stationary portion and a movable portion movable in X and Y directions relative to the stationary portion. The blade and the stylus are both coupled to the movable portion and a table is coupled to the stationary portion. The blade and stylus are movable relative to the table so that the molding on the table can be coped with the blade as the stylus traverses the coped profile of the template on the table. The blade and the stylus have corresponding widths and contours. In addition, when coping a crown molding, the blade and the stylus are tiltable to the same angle.

Abstract: The invention provides a woodworking duplicator which is adapted to be attached to a standard radial arm saw. The device allows a rotating cutting tool and a stylus to be movably supported allowing the user to trace a pattern with the stylus while cutting the pattern into a work piece with the cutter. The invention provides a duplicator that may be mounted to a radial arm saw wherein the duplicator includes elements that may be moved in five different directions. The invention also provides a duplicator having a stylus and a cutter that may be easily locked into different parallel positions so that the user of the duplicator may more easily trace the item being duplicated. The invention also provides a duplicator that supports the weight of the stylus and cutter tool.

Abstract: A coping device includes a circular blade, a template having an end provided with a coped profile, a stylus which traces the coped profile of the template and which preferably has substantially the same width and radius of curvature as the blade, clamps for respectively securing the molding and the template in a fixed position, and a base having a stationary portion and a movable portion movable in X and Y directions relative to the stationary portion. The clamps are coupled to the stationary portion, and the blade and the stylus are both coupled to the movable portion. The blade and the stylus are substantially simultaneously movable relative to the clamps so that the molding can be coped with the blade as the stylus traverses the coped profile of the template. The blade and the stylus have the same width, and the stylus is provided with a leading edge having a radiused contour matching the blade. In addition, when coping a crown molding, the blade and the stylus are tiltable to the same angle.

Abstract: The cutter and the tracer of the machine tool are slaved together for movement along the three major axes, and for pivoting about two different axes. The cutter and the tracer can be pivoted together about an axis through the cutter and the axis. The cutter and the tracer can also be pivoted about a pair of parallel axes passing through the cutter and the tracer.

Abstract: Apparatus for scribe engraving a workpiece with a miniature representation of a two-dimensional pattern in response to movement of a stylus following the pattern includes a spherically rotatable member having a frusto-spherical surface rotatably retained within a frusto-spherical bearing race remote from the pattern and having a passageway therethrough axially skew to the pattern, where the scribe extends fixedly from the spherically rotatable member for movement unitarily with the rotatable member, including means for connecting the rotatable member with the stylus so that the rotatable member rotates in response to stylus movement following the pattern where the connecting means is selectably disengageable from the rotatable member.

Abstract: Apparatus is provided for guiding a powered cutting tool as a function of a traced preselected pattern. The apparatus preferably includes a table member for supporting both of work piece and a paper or the like, exhibiting the pattern of interest. A first pair of rail members are fixedly mounted to or adjacent opposite sides of the table member, in parallel with each other, and on opposite sides of both the work piece and the paper exhibiting the pattern. In addition, a carriage assembly is slidably positioned on the first pair of rails, for movably supporting a stylus above the paper exhibiting the pattern, and for movably supporting the cutting tool and its driving mechanism adjacent the work piece.

Abstract: Apparatus for scribe engraving a workpiece with a two dimensional miniature representation of a pattern followed by a stylus includes a stylus moveable within a two dimensional pattern, a base supporting the pattern, a sleeve receiving the stylus and extending upwardly therefrom with the stylus protruding from the sleeve, a spring biasing the stylus outwardly of the sleeve, a beam above the base including a bearing seat, a spherically rotatable pivot member residing on the bearing seat, a scribe connected to the pivot member and moving unitarily with the pivot member and a tube telescopingly connecting the sleeve with the pivot member for rotation of the pivot member in the seat in response to movement of the stylus following the pattern.

Abstract: A process and apparatus for the control of the path of the grinding tool of an all-around edge grinding machine supporting a glass pane for movement about a rotational axis. The grinding tool is positively guided into contact with the edge of the glass pane as controlled by the contour of the glass pane. A scanning roller, also guided into contact with the edge of the glass panel provides the control heretofore described. Both the grinding head and scanning roller are movable in a direction toward the rotational axis of the glass pane. Path signals determined by the scanning roller are stored in a sliding register, and delayed at its output for a period of time required for movement of the glass pane through an angle which corresponds to the rotational angle (.alpha.,.beta.) between the point of contact of the scanning roller and the point of contact of the grinding tool on the edge of the glass pane. The path signals from the sliding register are used in position controlling the grinding tool.

Abstract: The invention is in a process, and the apparatus, for path control of a processing tool of a grinding machine for an all-around edge grinding of a glass pane. A cross sled supports the processing tool for movement in an X-Y coordinate system wherein the path of movement of the cross sled is controlled by a program. The path control, however, is critically controlled by the use of a scanning instrumentality including a scanning organ which scans the edge of the glass pane along a path of movement in front of the processing tool. The scanning organ is supported by an arm articulated about the axis of the processing tool. The scanning organ leads the processing tool by a set distance, equal to the length of the arm, and determines the values for the X- and the Y-coordinates. The values that are developed by the scanning organ are stored in a sliding register having an input from each of the two axes.

Abstract: An engraving spindle assembly is removably mounted on one of two links of pantograph to change the magnification of indicia to be engraved on a work piece. The spindle assembly is pivotable about the mounting means on each of said links to facilitate lefthand or righthand operation.

Abstract: Apparatus for engraving has a work piece support adjacent to scribing means for engraving inidicia on the work piece. A stylus moves a pivotal support to which scribing means is attached. Front-writing is achieved by positioning the scribing means above the stylus but below the pivot of the pivotal support. Scribing means concurrently engrave a plurality of work pieces from a single stylus. The work piece support is movable up and down, towards and away from the scribing means. The distance between the pivotal support and the stylus is adjustable. Vibratory means connected to the pivotal support vibrate the scribing means when the scribing means contacts the work piece. Identification means for dentures is provided.

Abstract: A duplicating carving machine for the home workshop of the kind in which a guiding stylus and router are movable horizontally in straight line perpendicular paths and vertically in an arcuate path. Rigid construction of the machine permits manipulation of the router from a safely remote point and includes means for mounting masters and work pieces having a wide variety of shapes and sizes so as to be conveniently accessible to the stylus and router, means for independently locking the stylus and router against horizontal movement in either direction at any point, means for locking the stylus and router in various angular positions with respect to tangency with their arcuate path of travel, and means for adjusting the spacing of the stylus and router.

Abstract: Engraving apparatus for engraving the inner periphery of a circular object such as a ring or band is provided with a tool holder which supports the engraving tool. A fiber optic bundle is supported by the tool holder and has one end exposed adjacent the engraving tool. A source of illumination communicates with the other end of the fiber optic bundle.