Abstract: A woodworking joint cutting jig and method having a template repositionably attachable to a base in a plurality of alternative positions established by receiving a pin on one of the base or template in one of a plurality of holes on the other of the template and the base.

Abstract: Adjustable guidebushes and methods for using the same facilitate cutting joint elements into work-pieces to join together two or more of the work-pieces. In some embodiments, the adjustable guidebush includes a guide surface defining a number of outer diameters having different lengths. Positioning different outer diameters of the guide surface to interact with a cutting guide allows one to adjust the fit of the joint elements formed in the work-pieces.

Abstract: Parquet tiles cut from the ends of barrels, preferably wooden wine or whisky barrels; a method of forming the tiles using a tongue- and groove-defining template; and parquet flooring which uses the tiles, are disclosed.

Abstract: A through dovetailing jig assembly comprised of a dovetailing jig removably attached to a workpiece, an indexing strip removably attached to the workpiece and jig, and a front backup board removably attached to the workpiece and jig. The jig is further comprised of a removable pin insert and a removable tail insert.

Abstract: A method for creating a design on a surface comprising providing a template to overlay the surface upon which the design is to be created, forming a pattern of the design on the template for the design which is to be created on the surface, placing the template with the pattern of the design thereon on the surface, with a tool, tracing the pattern of the design on the template to form an impression on the surface below the template and removing the template leaving the impression of the design on the surface.

Abstract: A kit for forming mortises in door edges and door frames for flush-mounting door hinges, strike plates and latch plates is provided. The kit generally includes a template holder and a plurality of templates mountable to the template holder. The templates provide guides for various size hinges, strike plates or latch plates. The template holder includes an adjustment mechanism for easily adapting the template holder from doors having a first thickness to doors having a second thickness. The adjustment mechanisms include a rotatable cam and knob. The kit may optionally include an alignment schedule providing distances for locating the templates relative to a door end or a frame. Further, the templates may include tab engagement slots for engaging a tape measure.

Abstract: A kit for forming mortises in door edges and door frames for flush-mounting door hinges, strike plates and latch plates is provided. The kit generally includes a template holder and a plurality of templates mountable to the template holder. The templates provide guides for various size hinges, strike plates or latch plates. The template holder includes an adjustment mechanism for easily adapting the template holder from doors having a first thickness to doors having a second thickness. The adjustment mechanisms include a rotatable cam and knob. The kit may optionally include an alignment schedule providing distances for locating the templates relative to a door end or a frame. Further, the templates may include tab engagement slots for engaging a tape measure.

Abstract: A jig for cutting box joints on a table saw, including guide bar clamps adapted to be joined to guide bars of a table saw; a spacer joined to the guide bar clamps; a spacer strip joined to the spacer, the spacer strip defining spacer apertures; a board clamp joined to an engagement pin, the engagement pin engaging one of the spacer apertures of the spacer strip; and mechanism for offsetting pairs of boards such that grooves and projections on a pair of boards is cuttable offset from a corresponding pair and method of use including joining a jig to a table saw; clamping at least two pairs of boards to the jig; positioning the clamped boards relative to the table saw; cutting a groove through all boards; repositioning the clamped boards relative to the table saw; cutting another groove spaced apart from the first groove; repeating the steps of repositioning and cutting another groove until grooves have been cut from one edge to an opposing edge with projections disposed between the grooves; and interlacing the

Abstract: Adjustable guidebushes and methods for using the same facilitate cutting joint elements into work-pieces to join together two or more of the work-pieces. In some embodiments, the adjustable guidebush includes a guide surface defining a number of outer diameters having different lengths. Positioning different outer diameters of the guide surface to interact with a cutting guide allows one to adjust the fit of the joint elements formed in the work-pieces.

Abstract: A jig for cutting box joints on a table saw, including guide bar clamps adapted to be joined to guide bars of a table saw; a spacer joined to the guide bar clamps; a spacer strip joined to the spacer, the spacer strip defining spacer apertures; a board clamp joined to an engagement pin, the engagement pin engaging one of the spacer apertures of the spacer strip; and mechanism for offsetting pairs of boards such that grooves and projections on a pair of boards is cuttable offset from a corresponding pair and method of use including joining a jig to a table saw; clamping at least two pairs of boards to the jig; positioning the clamped boards relative to the table saw; cutting a groove through all boards; repositioning the clamped boards relative to the table saw; cutting another groove spaced apart from the first groove; repeating the steps of repositioning and cutting another groove until grooves have been cut from one edge to an opposing edge with projections disposed between the grooves; and interlacing the

Abstract: A base frame for holding fixtures used in woodwork includes an extruded body having a raised top central portion formed into a dovetailed open-topped upper channel, two lowered wing portions located at each lateral side of the upper channel and formed into two symmetrically identical open-topped side channels with a height difference between the tops of the upper and the side channels, and a big-size open-bottomed lower channel formed below said upper channel and said two side channels. With the height difference between the upper and the side channels, two base frames may be perpendicularly connected to each other in the same plane using a U-shaped connecting bracket flush with the top of the upper channel, or superposed with the upper channels facing toward each other by locking inserting blocks in each open-sided channel formed between two side channels at the same side of the two superposed base frames.

Abstract: A shape cutting system for cutting a material having a surface. The shape cutting system includes a cutting unit and at least one template. The cutting unit includes a frame, a blade adjustment assembly and a blade assembly are coupled to the frame. The blade assembly is positioned at least partially within the frame such that a longitudinal axis of the blade assembly is substantially perpendicular to a lower support surface of the frame. The blade assembly includes a blade retainer and a blade connected to the retainer. The blade adjustment assembly is positioned on a neck which is rotatable relative to the frame. A user is capable of accessing and replacing the blade assembly without altering the position of the blade adjustment assembly relative to the neck.

Abstract: A tool for making locking tapered sliding dovetail joints and a kit including the tool. The tool includes a guide plate having a guide groove including a locking section disposed on at least one of edges of the groove guide, wherein at least a portion of the locking section is disposed in a plane that is different from the plane of the groove edge corresponding to the groove edge on which the locking section is located.

Abstract: A tool for making locking tapered sliding dovetail joints and a kit including the tool. The tool includes a pin guide having a minor end having a minor width and a major end having a major width that is larger than the minor width such that the template has a taper in width from the major end to the minor end. The tool also includes a locking section configured such that the tool forms an area of increased friction in the joint relative to the rest of the joint. The tool may also include at least one stabilizing member for holding the template in place while the sliding dovetail pin is being formed from the workpiece.

Abstract: A shape cutting system for cutting a material having a surface. The shape cutting system includes a cutting unit and at least one template. The cutting unit includes a frame, a blade adjustment assembly and a blade assembly are coupled to the frame. The blade assembly is positioned at least partially within the frame such that a longitudinal axis of the blade assembly is substantially perpendicular to a lower support surface of the frame. The blade assembly includes a blade retainer and a blade connected to the retainer. A rigid collar of the retainer is configured to operatively engage at least one of a periphery and the edge of an opening of the template thereby enabling the blade to cut a shape in the cutting material which assimilates the shape of at least a portion of the at least one of the periphery and the edge.

Abstract: A shape cutting system for cutting a material having a surface. The shape cutting system includes a cutting unit and at least one template. The cutting unit includes a frame, a blade adjustment assembly and a blade assembly are couple to the frame. The blade assembly is positioned at least partially within the frame such that a longitudinal axis of the blade assembly is subtantially perpendicular to a lower support surface of the frame. The blade assembly includes a blade retainer and a blade connected to the retainer. The blade adjustment assembly is positioned on a neck which is rotatable relative to the frame. A user is capable of accessing and replacing the blade assembly without altering the position of the blade adjustment assembly relative to the neck.

Abstract: A template for making tapered sliding dovetail pins from a workpiece. The template includes a longitudinal centerline, a pair of side edges, a workpiece side, a tool side, a minor end having a minor width and a major end having a major width that is larger than the minor width such that the template has a taper in width from the major end to the minor end, and at least one stabilizing member disposed on the workpiece side of the template for holding the template in place while the sliding dovetail pin is being formed from the workpiece.

Abstract: A shape cutting system for cutting a material having a surface. The shape cutting system includes a cutting unit and at least one template. The cutting unit includes a frame, a blade adjustment assembly and a blade assembly are coupled to the frame. The blade assembly is positioned at least partially within the frame such that a longitudinal axis of the blade assembly is substantially perpendicular to a lower support surface of the frame. The blade assembly includes a blade retainer and a blade connected to the retainer. A rigid collar of the retainer is configured to operatively engage at least one of a periphery and the edge of an opening of the template thereby enabling the blade to cut a shape in the cutting material which assimilates the shape of at least a portion of the at least one of the periphery and the edge.

Abstract: A three sided jig is provided for cutting logs or timber for joints, particularly dovetail joints. Also provided is a slide for use with a chainsaw and a jig.

Abstract: A router jig apparatus for forming dowel which can be used for stair railings, in particular. The router jig apparatus includes a support table having a tabletop and leg members for supporting the tabletop; and also includes a router assembly including a motor being attached to an underside of the tabletop and also including a router bit being actuated by the motor; and further includes a template assembly including a plate being movably disposed upon a top of the tabletop, and also including a work piece support member being disposed upon the plate for supporting a work piece to be routed by the router bit.

Abstract: A mortise and tenon joint adapter system for use with a dovetail jig base and a router has a template support, a mortise shelf, mortise and tenon templates, and a layout guide. The template support mounts on the jig base and the templates mount on the template support. The mortise shelf mounts on the jig base, is vertically adjustable and clamps laterally extending mortise work pieces. Mortising and tenoning slots on the templates provide two sided guidance and full support for the router. Movable stops in the slots provide length adjustability for mortises and tenons. The layout guide assures precise layout of mortises and tenons created with the templates.

Abstract: A machine for use with a table-mounted router to form a wide variety of woodworking joints by manipulating a workpiece to engage the router cutter in predetermined locations, in some instances by reference to a joint element template, and in other instances by reference to predetermined lateral locations, to form joint elements with predetermined shapes and spacing.

Abstract: A jig having a guide block and a repositionable clamp for use with a saw for hand cutting tails and pins on the ends of boards to form a dovetail joint. The guide block has four planar sides that are joined to form a substantially square tube, the ends of which define guide faces that form an oblique angle with any plane orthogonal to the planar side of the guide block. A pair of magnets within the body of the guide block, each covered by a low friction pad firmly engage the saw and keep it in contact with the guide faces throughout the cutting operation. The guide block also has two orthogonal wing surfaces for positioning the guide block against a face of a board to orient the guide faces either: (a) square to the end of the board and at an angle to its faces, or (b) square to its faces and at an angle to the end of the board. The repositionable clamp is secured to the guide block for clamping it to the board in either of the two alternative positions.

Abstract: A machine for use with a table-mounted router to form a wide variety of woodworking joints by manipulating a workpiece to engage the router cutter in predetermined locations, in some instances by reference to a joint element template, and in other instances by reference to predetermined lateral locations, to form joint elements with predetermined shapes and spacing.

Abstract: Methods for setting-up a female blanking die for a die cutting machine for die cutting and/or blanking a carton blank, and universal press frames for use in such setting-up are all provided herein. The first stages in the erection of the female blanking die, which includes a rectangular framework of a front rail, a rear rail and two side rails, involve accurate placement of a template within the rectangular framework. All the rails are provided with a dovetail groove along its inside edges. This is achieved by the use of centre line orientation cylinders on a template, a centre line rod through aligned holes in the centre line orientation cylinders and centre line brackets at the precise centre point of the front and the rear rails. The template is mounted atop the centre line brackets by means of the centre line rod and rests loosely on template corner locking clamps.

Abstract: A method and apparatus 10 for installing and trimming a plurality of wooden mounting blocks 110 within a roughed out door frame 100 to prepare the roughed out door frame to 100 to receive a finished door frame: wherein, the apparatus 10 includes a pair of vertical standard units 11 11′ connected together by a pair of horizontally adjustable spreader units 12 12′ that are adapted to cooperate with one another to conform to the outside dimensions of the finished door frame; wherein, each of the vertical standard units 11 11′ is provided with a plurality of router templates 27 and means for plumbing each vertical standard unit relative to one of the vertical studs 101 101′ in the roughed out door frame 100; such that the wooden mounting blocks 110 can be glued to the vertical studs 101 101′ and then trimmed using the router templates 27 so that the trimmed mounting blocks 110 are perfectly aligned to receive the finished door frame.

Abstract: A coping jig for guiding a router in cutting the end of a section of decorative trim, preferably for creating an inside corner. The coping jig includes a stationary molding stage that receives a section of molding to be cut. A template platform is mounted above the molding stage by a plurality of resilient mounting members. The resilient mounting members allow the angle of the template platform to change relative to the molding stage. The template platform includes at least one template having a trim pattern formed on an edge surface of the template. The trim pattern is used to guide the router in cutting the molding positioned between the template and the molding stage.

Abstract: A shape cutting system for cutting a material having a surface. The shape cutting system includes a cutting unit and at least one template. The cutting unit includes a frame, a blade adjustment assembly and a blade assembly are coupled to the frame. The blade assembly is positioned at least partially within the frame such that a longitudinal axis of the blade assembly is substantially perpendicular to a lower support surface of the frame. The blade assembly includes a blade retainer and a blade connected to the retainer. A rigid collar of the retainer is configured to operatively engage at least one of a periphery and the edge of an opening of the template thereby enabling the blade to cut a shape in the cutting material which assimilates the shape of at least a portion of the at least one of the periphery and the edge.

Abstract: A woodworking jig has a pair of horizontally elongate co-planar router plate guide surface areas spaced apart from one another, with an elongate opening between the router plate guide surface areas, a workpiece clamp mounted below the opening, and a guide member support extending along the opening. Router guide members are releasably interengageable with the router guide to locate the router guide members in operative positions above the workpiece clamp and below the router plate guide surfaces.

Abstract: A jig apparatus that allows one to cut arches in a work piece quickly and efficiently. It is comprised of a bar that has sliding adjustable clamps that secure a cable which go around pulleys on a router or other cutting device that when the cable is pulled taut, creates a path for the router or other cutting device to follow while it cuts thus cutting an arch into the work piece. Prior to this apparatus one would have to cut this arch with a template which had been previously tooled. This jig apparatus creates a template and cut all in one step.

Abstract: A double mortising, tenoning and dovetailing wood working machine including a base member, a sliding member and locking members. The base member is mounted on a table. The sliding member and locking members serve to precisely locate the base member relative to a piece of wood stock. The base member can be located over a piece of wood stock, locked into place and have a tenon or tail cut on the stock. The base member can then be moved horizontally over the stock, locked into position and have a second tenon or tail cut on the stock. The stock is then removed and replaced with another piece of wood stock to receive the mortise or socket joints. Through the use of the locking members and the slide member the base member can be located over the stock in the exact location needed to cut the mortise or socket joints to allow for a precise double mortise-tenon or dovetail joint.

Abstract: A jig facilitates the construction of joints in a working piece, and, more particularly, secures the working piece to be cut and allows it to be passed over a fixed router without sacrificing any of the ease of use or quality associated with prior art jigs and templates. The jig also can be secured to a work surface and used with a hand-held router.

Abstract: An apparatus for positioning and mounting sinks to the underside of solid polymer countertops has a framework assembly consisting of a front rail (14) comprising an aligning channel (16), rail assembly brackets (26) and a centering graph (20); side rails (18) comprising template mounting ledges (22, 24) and turn-button attachment means (60); a rear rail (46) comprising mounting ledges (22, 24) and rail assembly brackets (26). A sink positioning/hold-down template (38) comprising a sink positioning opening (42), a clearance opening for faucet hole routing (40), sink hold-down clamp assemblies (44), and notches (50) for positioning permanent sink clamps, is mounted on ledge (22) by means of turn-buttons (60). A sink opening router template (36) comprising a router guide opening for sink (48), an opening for a faucet router template (52), and a faucet router template (32) with router guide openings for a faucet (58), is attached to framework assembly by means of pawl latches (30).

Abstract: An adjustable template assembly for a router to assist in cutting junction box apertures at preselectable positions in wall surfaces which may be vertically or horizontally disposed.

Abstract: A method and apparatus for cutting baseboard molding to join two adjacent pieces in an inside comer provides a plate constructed with at least one patterned cutting edge having a contour which conforms to the front face of a baseboard molding. A plate support is adapted to carry the plate, and is in turn itself carried by a clamping apparatus of known type which typically combines features of a vise and a table. The baseboard molding to be cut is carried adjacent to the plate support within the clamping apparatus. Upper and lower angle boards may be used to support the baseboard molding to be cut at a slight angle from perpendicular to the blade making the cut, in a manner that allows a slight bevel to be made in the cut. A cutting device such as a router is then traced along the patterned cutting edge, thereby cutting off an end of a first piece of baseboard molding in a contour which corresponds to the face of a second piece of baseboard molding.

Abstract: The present invention provides a guide apparatus for use with a portable router, for enabling the router to rout an edge of a workpiece at virtually any angle between 0.degree. and 90.degree.. The guide apparatus comprises: a main body for receiving a router base and including an opening for a router bit to extend therethrough; a reference member having a planar surface for abutment with a planar surface of a workpiece and including a guide edge along one edge thereof; a hinge means connecting the reference member to the main body; a securing means for securing the reference member to the main body at a desired angle; and a guide bar securable relative to the workpiece and providing a guide surface for abutting the guide edge of the reference member, to guide the router bit of the router mounted on the main body along the edge of the workpiece.

Abstract: An apparatus and method for enabling the routing of wide grooves and rabbets onto the sides, edges, or ends of boards, using a hand-held router. The apparatus comprises a main body platform with a pair of fence feet mounted on the underside. The fence feet act as guide fences, supporting feet, or both, to guide the router over the workpiece to obtain the desired cut. Calibration reference points on the main body platform and on the fence feet allow the fence feet to be adjusted quickly and accurately for various widths of grooves and rabbets, and for a number of different router bit sizes. The operating height of the main body platform may be adjusted by adding fence feet soles and spacers onto the bottom of the fence feet.

Abstract: The present invention includes the apparatus and method to create an improved loose tenon joint with multiple arculate mortise surfaces and similarly configured loose tenon member for woodworking applications. A drilling jig is provided to axially guide a drill bit for boring a series of adjoining holes forming a mortise, and a router bit is provided to form a cooperating tenon. A first jig embodiment manipulates a slidable drilling guide bar maintaining longitudinally spaced thru-bores and a plurality of index holes. A second embodiment includes a stationary jig body having an opening that supports at least two drilling guides each having at least one thru-bore. A third embodiment provides a drilling guide bar slidably attached to a stationary support member by at least one indexing pin inserted through an elongated indexing aperture in the stationary support member and into an indexing hole in the guide bar. Preferably, the indexing pin and indexing hole are threaded.

Abstract: A dovetail joint jig for guiding a power tool for creating a dovetail slot in a first workpiece and a dovetail pin in a second workpiece includes a substantially flat main body portion having a slot portion on one side and a pin portion on an opposite side. The slot portion includes a pair of oppositely-disposed side projections which define a clearance space therebetween. A tapered router bit is guided along the inner edge of the side projections in order to create a dovetail slot in the first workpiece. The pin portion includes a slot-shaped portion whose planar shape coincides with the shape of the slot to be created in the first workpiece and accordingly in the preferred embodiment coincides with the shape of the tapered router bit. A generally cylindrical router bit is guided around the edge of the pin portion in order to remove material from the second workpiece and leave a dovetail pin which matches the dovetail slot in the first workpiece.

Abstract: A jig used to support and guide a router has a support base to which the workpiece is clamped as well as a moveable template containing guiding surfaces for a router. The template is attached to the support base via an elongated support channel. The support channel is permanently attached to the support base and captures two square nuts used to clamp the template to said channel while cutting but allowing the template to be loosened and repositioned between cuts. A bar clamped to the underside of the template is pressed against the channel to align both in parallel and, by virtue of being attached to the template via angled slots, can be used to adjust the position of guiding surfaces in the template relative to the workpiece. The template has a variety of slots and cutouts whose sides guide the router in the making of specific cuts for dovetail, box and related joints. The template is indexed from one cutting position to another by means of a ratchet or equivalent which engages the teeth of a saw tooth rack.

Abstract: A woodworking jig has a pair of horizontally elongate co-planar router plate guide surface areas spaced apart from one another, with an elongate opening between the router plate guide surface areas, a workpiece clamp mounted below the opening, and a guide member support extending along the opening. Router guide members are releasably interengageable with the router guide to locate the router guide members in operative positions above the workpiece clamp and below the router plate guide surfaces.

Abstract: A modular panel can used either as a pattern plate or a template to create a pattern plate in the fabrication of dovetail joints. This panel is a planar member having a generally rectangular shape, including a pair of sides, a left edge, and a right edge. The panel defines a first plurality of elongated openings positioned adjacent one of the sides of the panel, each of said openings extending between oppositely disposed first and second circular ends, said openings being used as a guide to cut the tails of a dovetail joint. The panel further defines a second plurality of openings positioned adjacent the other side of the panel. These openings are used as a guide to cut the pins of a dovetail joint. Additionally, the panel defines "half-openings" along its left and right edges. Thus, when two panels are placed side-by-side, the adjacent half-openings form the above described first and second elongated openings, thereby allowing a series of panels to be used to create dovetail joints of an indefinite length.

Abstract: An apparatus for use with a portable router, a small template, and a template guide to rout virtually any shape onto workpieces that would normally be considered too small for standard portable routers to handle. The apparatus comprises a main body for supporting a router; locating means for locating the router with respect to the main body and mounted on the main body; support means extending down from the main body, for supporting the main body on a support surface for movement across the support surface; and a template guide mountable on the router around the router bit and extending below the support means, whereby, in use, with a workpiece and a template secured to the support surface and with a template on top of the workpiece, the router is supported by the main body and the support means above the template and workpiece and the template guide abuts the template to guide the router bit around the template.

Abstract: A transparent shield is attached to a template and workpiece and used to move the workpiece against an inverted router blade. The transparent shield prevents inadvertent contact of fingers or hands with the router blade, yet allows visual observation of the workpiece proximate to the router blade. A router table may support the workpiece being cut by the router blade. Handles may be attached to the transparent shield for holding thereof. Sensors in the router table may determine the position of the transparent shield in relation to the router blade and the router blade may be stopped if the transparent shield is not covering the router blade. A video camera may be positioned over the router table. The router table, router blade and transparent shield images may be tracked in relation to one another such that if the transparent shield is not covering the router blade, then the router blade may be stopped.

Abstract: A workpiece holder includes a template and a pair of slide blocks mounted to the template for slideable movement with respect to the template. The slide blocks and the template can be mounted to a base plate or can be mounted to each other without the use of a base plate. The slide blocks include straight edge surface and L-shaped notched surface which can be reversed to accommodate templates and workpieces of varying shapes.

Abstract: A jig for cutting dovetail joints includes a rigid template (1) attached to a block (4). A T-slot (6) along the top of the block locates a stop (8) which is used to align the edges of boards into which dovetail joints are to be cut. The rigid templates (1) includes a row of tapered fingers (2) and an opposing row of straight fingers (3). Shims (16) are used to adjust the position of a backing board (14) relative to the tapered fingers (2), thus providing adjustment in the fit of the dovetail joints. The device is adapted to be used in conjunction with a table-mounted router having a template follower or bearing fitted to the shank of the cutters.

Abstract: The router jig of this invention uses a preformed negative form of the decorative molding as a guide which directs a router having a straight router bit along the end of a piece of the molding to appropriately form the end for an inside corner. The router jig includes a generally rectangular frame having a router support tray which is slidable relative to the frame. A slot is formed through one side wall of frame. A biased guide pin is connected to the router support tray and is accommodated within the slot of the frame. In use, a router is placed onto the router base and in contact with the guide pin which is extending through the slot. The opposite end of the guide pin is placed in contact with the negative form. With a piece of molding clamped under the frame, the router is turned on and slid with the router base perpendicularly across the molding. As the router is slid relative to the frame and molding, the guide pin is guided along the negative form.

Abstract: The traditional method of carving out an electrical outlet box opening in a log wall consists of chiselling after a series of closely spaced holes are drilled in the log. It is a time consuming and difficult undertaking. An apparatus for quickly and easily cutting a rectangular opening in a log wall is disclosed. The apparatus comprises: a saw jig, having a central opening, for mounting on an upright side of the log wall; a cutting drum having teeth around its periphery; drive means to revolve the cutting drum; and, a guide arm attached to the jig to guide the revolving drum into the central opening. Most preferably the drive means is a chain saw. A method of cutting a rectangular opening in a log wall comprises the following steps: mounting a jig having a central opening and a guide arm, on an upright side of the wall; and, guiding a revolving drum having teeth on its periphery through the central opening into the wall using the guide arm on the jig.

Abstract: A transparent shield is attached to a template and workpiece and used to move the workpiece against an inverted router blade. The transparent shield prevents inadvertent contact of fingers or hands with the router blade, yet allows visual observation of the workpiece proximate to the router blade. A router table may support the workpiece being cut by the router blade. Handles may be attached to the transparent shield for holding thereof. Sensors in the router table may determine the position of the transparent shield in relation to the router blade and the router blade may be stopped if the transparent shield is not covering the router blade. A video camera may be positioned over the router table. The router table, router blade and transparent shield images may be tracked in relation to one another such that if the transparent shield is not covering the router blade, then the router blade may be stopped.

Abstract: A mortising fixture that utilizes interchangeable templates to guide an electric router fitted with a template guide bushing. The templates are held in a fixture plate that is positioned on the box or lid surface to be mortised and which plate is clamped to the lid or box in a position that is determined by (1) a fixture fence that rests against the back edge of the lid or box and (2) a adjustable end stop that indexes against the lid or box sides. One box mortise and the opposite lid mortise are made with the end stop screw block in one position on the fixture plate, and the other two mortises are made after flipping the fixture block and adjusting screw to a corresponding position on the other side of the plate.