Abstract: Method and apparatus for supporting a power tool, e.g., a power mitre box, are disclosed. In a preferred embodiment (10), an electrically-powered motor unit (16) is pivotably supported by a table (14) which in turn is rotatably supported by a base (12). The base (12) preferably includes four legs (20) and an equal number of studs (26). The legs (20) and studs (26) combine to form front slot (27a) and rear slot (27b) in the base (12) suitable for receiving a pair of horizontal support members, e.g., a pair of two-by-fours (34). The base (12) also preferably includes a pair of extensions (24) which are sized to make the top surface of the base (12) and table (14) flush with a plurality of cross pieces (36) spanning the horizontal support members (34). The flush surface created by the cross pieces (36), base (12) and table (14) is suitable for supporting a long workpiece so as to minimize blade binding and splintering.

Abstract: Method and apparatus for providing motive power to a tool are disclosed. A preferred power mitre box (10) including a base (12), a table (14) and electrically-powered motor unit (18) suitable for driving a saw blade (20) is described. The motor unit (18) includes an armature (40) and an arbor shaft (22) which are respectively supported by armature bearings 42 and arbor bearings 44 and are preferably substantially parallel and of substantially the same length. Also, the distances between the armature bearings (42) and the arbor bearings (44) are preferably substantially equal. The relatively large distance between the arbor bearings (44) causes the blade (20) to have very little play or deflection due to looseness in the bearings (44). In preferred embodiments, a speed reducer assembly (34) is located on the opposite end of the arbor shaft (22) in relation to the blade (20). Also, the speed reducer assembly is preferably of the cog belt type.

Abstract: Lightweight, portable apparatus for cutting a wide range of materials available in sheet form, such as matboard, glass, light plastic, and leather. The invention lies in the unification of its cutting tool guide tract with the means of fixing in place the material to be cut. Four pegs are attached to the base of the apparatus for aligning the sheet to be cut. Equally important is the means by which it is automatically held in place during the cutting operation. Pieces of foam rubber or the like are inlaid in the base of the apparatus so that when the operator is pressing down on the cutting tool the resultant force normal to the supporting surface is sufficient to prevent lateral motion of the apparatus. Thus, no bulky and awkward clamping devices need to be used to affix the cutter to its supporting table.

Abstract: A portable miter guide device for chain and hand saws having a holding assembly (12) including a cradle member (18) and coacting clamps (36,38) for attaching the device to a work piece (W). The device includes a support arm (32) to which is attached an adjustment arm (14) for limited angular movement in a plane parallel to the work piece. Adjustably attached to the outer end of the adjustment arm (14) at an upstanding right angle is a saw guide member (16) with guide slot (80, 88, 90) for guiding chain and hand saws. The device can be attached to large wooden work pieces, the angle of cut chosen and a chain or hand saw (C, H) used to obtain an accurate square or compound cut in the work piece (W). In a second embodiment of the invention the adjustment arm (130) is fixed rather than being pivotal has a disc member (132) with support brackets (136,138) for pivotally supporting guide member (16).

Abstract: A truss component saw apparatus having multiple saws arranged in two sets for providing a variety of angular cut-offs for lumber lengths. The saws in each set are arranged for adjustment movements involving from 1 to 4 degrees of freedom of movement. An automatic control mechanism is provided for automated adjustment of the saws to predetermined positions. The degrees of freedom are linear, pivotal, and movement within an X-Y coordinate plane arranged substantially perpendicular with respect to the pivot axis established by the saws within a given set of saws. A lumber conveyor system is provided for the apparatus.

Abstract: A machine saw comprises a machine frame, a slotted flat plate rotatable about a vertical axis and serving to receive a workpiece to be sawn, a motor-driven circular saw blade which is rotatable about a horizontal axis of rotation and is adapted to be passed upwards through the slot in the rotatable plate from beneath during sawing, a clamping bridge which is fixed in relation to the frame and spans the rotatable plate and a clamping device mounted by the bridge for clamping a workpiece on the rotatable plate. Part of the clamping device is formed by a clamping jaw movable vertically upwards and downwards and adapted to be set down onto the workpiece, this clamping jaw being rotatable about the axis of rotation of the rotatable plate and displaceable at right angles to this axis of rotation in a sliding guide means.

Abstract: An automated means and method for cutting matte board and other soft materials. A matte board having a front display surface and spaced rear surface is placed on a planar support in facing contact with the display surface. After the matte is fixed into position, at least one cutting blade is caused to initially move simultaneously in both a vertical and horizontal direction to make a bevel cut from the rear surface through to the front surface. Once the cutting blade has passed through the front surface, the blade is caused to move horizontally so as to form a bevel cut along a predetermined length of the matte board.

Abstract: A miter gage having an adjustable workpiece clamp. The miter gage is of the type having a bar shaped to slidably engage a guideway of a tool work table, a protractor mounted on the bar and a grip mounted on the protractor. The clamping device includes a lock guide having a base adapted to be attached to the grip, a longitudinally-extending, vertical opening and a pair of opposing side walls; a U-shaped lock clamp having a sidewardly-opening channel receiving the lock guide and including a vertical bore positioned in registry with the lock guide opening, a lock rod extending vertically through the bore and opening and a lock knob having a stud which is threaded through the side of the lock clamp to bear against an adjacent sidewall of the lock guide. Displacement of the threaded stud relative to the lock clamp urges the lock guide sidewardly out of the channel and causes the lock rod to be urged against the lock guide, thereby preventing its relative movement.

Abstract: An arrangement for diagonally cutting up the end of a rectangular tube is provided. In order to be able to utilize the shearing principle with such diagonal cuts, the clamping jaws are arranged as stationary shearing blades having shearing edges that define a cutting plane. The rectangular tube being cut to size is diagonally inserted between the clamping jaws so that a pocket which is to be cut off stands out beyond the cutting plane. A shearing knife moves along the pocket and has an arrow-like shearing edge which inserts into this pocket-shaped projecting end and cuts off the end from the inside against the stationary cutting blade. Each of the three stationary cutting edges is brushed off by the movable cutting edge by at least one movable component.

Abstract: The invention provides a reversible non-adjustable miter guide having a pair of spaced-apart back-to-back parallel runner means each of which is adapted to closely slide in either of two guide grooves in a saw table, and at least one miter fence and preferably two, attached to said runner means and extending laterally thereof within parallel planes defined by the runner means. The miter guide can be economically fabricated of hardwood strips cemented together, or else molded or cast as a single unitary piece, in plastic or metal such as aluminum or zinc.

Abstract: A picture frame molding holding and cutting apparatus and a method of using the apparatus is described. The apparatus has a miter square, adjustable stop means and adjustable clamping means for holding a molding to be cut in position during the cutting of the ends of the molding. A means and method of accurately measuring and holding a molding during cutting to produce a desired final length utilizing a frame molding pattern is also described.

Abstract: A reusable insulated box includes a shipping container having a plurality of interconnected sides integral with a closed bottom and a sealable top. Bottom, top and side insert members are comprised of a rigid insulating material having at least an inner or outer surface thereof coated with a reflective insulating material for thereby providing a plurality of insulating plate members and each of the insulating plate members is sheathed in a heat shrunk thermoplastic insulating material. The bottom insert member is disposed in facial relation with the closed bottom of the container and the side insert members extend upwardly from a peripheral portion thereof in facial relation with the sides of the container. A top insert member is engaged with and supported by an upper surface of each of the side insert members and the combination of the thickness of the top and bottom insert members with the height of the side insert members is sufficient to permit closing and sealing of the sealable top.

Abstract: A power saw includes a motor for driving a saw blade or the like around its rotational axis to cut a workpiece. The position of the rotational axis with respect to a reference position is sensed and a manually operated keyboard is provided for entering a desired change in the position of the rotational axis. Positioning motors are provided along with circuitry which is responsive to the entering of a desired change in the position of the rotational axis of the saw blade for moving the axis correspondingly.

Abstract: A portable miter saw for cross-cutting and mitering elongated workpiece has a mechanism interlocked with the turntable for shutting the saw blade clearance gap in the guide fence. The mechanism is provided with a pair of shutter plates slidable on the guide fence and an interlocking piece connected to the shutter plates and movable in operative association with the turntable so as to linearly displace the shutter plates upon rotation of the turntable to selectively change the cutting angle of the saw blade.

Abstract: A drop feed mitering machine includes a work table positioned in a near vertical orientation, a cutting throat running perpendicularly through the machine and a drop feed guide mounted in the region of the cutting throat for guiding a length of molding stock over the cutting throat in a simple gravity assisted drop feed operation. A cutter block is actuated from the front of the machine to sever the molding section positioned over the cutting throat and a front removable scrap bin is provided for removing scraps produced by the cutter block during mitering operations. A feed stop positioned below the feed guide is adjusted to determine the length of the molding piece to be cut. The drop feed machine of the invention can be operated in a confined space because the horizontal feed operations and the horizontally extending feed structures of conventional mitering machines are eliminated.

Abstract: An improvement is set forth in a sawing apparatus having a workpiece support structure and an operator moveable electrically operated saw having a first normally biased off switch controlling application of electric power thereto, the switch being positioned to be controlled by the hand of an operator which controls movement of the saw. The improvement comprises a device adapted for gripping, positioning and clamping a workpiece relative to the workpiece support structure and a second normally biased off switch connected in series with the first normally biased off switch, the second switch being positioned to be controlled by the off hand of the operator while the off hand is utilizing the device. Since both hands of an operator must be holding onto normally off switches and since both switches are in positions removed from the area of movement of the saw blade, the operator is protected from accidently cutting himself.

Abstract: A unitized saw guide and protractor assembly includes workpiece locator tabs whereby the assembly and workpiece can be hand-held safely for making a precision workpiece cut at a required angle by means of a saber saw. The same saw guide and protractor assembly is employed with a platform on which the assembly rests with its workpiece locator tabs engaged within slots of the platform which lock the assembly and platform together in a precision use mode to create a miter box, said tabs again contacting and positioning a hand-held workpiece for cutting. The saw guide and protractor assembly is used in a third mode with a vise equipped framing base as a miter machine where again the locator tabs engage a face of the workpiece to position the saw guide and protractor assembly with precision. A simplified highly versatile and very economical apparatus is achieved.

Abstract: An apparatus for cutting at a bevel a piece presents a reference surface with respect to which the plane of cut must be inclined, by the desired angle.The apparatus comprises two parallel, vertical side elements in which are respectively provided two slots for guiding a saw blade, these two slots being parallel and opening in the edges of the side elements to define the plane of cut. Means are provided for connecting the two parallel, vertical side elements to maintain them at a distance from each other along a common transverse axis. A support is mounted on each side element so as to be orientable about the transverse axis and presents an upper bearing face. The two parallel, upper bearing faces define a bearing plane for the reference surface of the piece to be cut. Means are provided for blocking each support on the side element associated therewith so that its bearing face forms with the slot of the corresponding side element, an angle equal to the desired angle of cut.

Abstract: A cutting guide is disclosed for guiding a saw for a mitre cut, particularly at 45.degree., through a piece of coving. The guide provides a guide faces for sliding engagement by a saw or other cutter. The coving is typically placed on a bench with the intermediate rear surface of the coving flat on the bench. The guide is placed on top of the coving with notches or other engaging means locating the guide on the coving and a cut is made with the saw in contact with either face.

Abstract: An improved table shear, and method for using same, for cutting sheet metal in precise dimensions. The table shear includes a hold down clamp in operative engagement with the cutting blade leverage mechanism. The clamp impinges against the sheet metal before the blade begins to cut, thereby preventing movement of the sheet metal during the shearing process. The clamp also protects the operator from the cutting blade during the shearing operation.

Abstract: The present invention relates to a backgauge device comprising a plurality of guide members extending substantially parallel to one another, a movable body supported on each guide member so as to be movable in the direction of the guide member, a drive mechanism connected to each guide member for independently moving each of the movable bodies along its respective guide member, a beam member extending transversely to the guide members, the beam member being supported by the movable bodies and said movable bodies being vertically adjustable independently of each other so that the beam member can be adjusted in both a horizontal and oblique manner.

Abstract: A production machine for cutting components for furniture, house framing and framing for concrete construction is disclosed. A powered cutting blade can traverse a linear horizontal path above the support surface of a workpiece horizontal table. The blade can be moved upwardly and downwardly vertically relative to the support surface of the table, can be shifted horizontally on a second linear path across the axis of the first-named linear path, can be rotated around a vertical axis, and can be tilted in two directions around a horizontal pivot axis below and parallel to the first-named linear path. The arrangement enables cutting of components in multiple intersecting planes.

Abstract: A compound angle disk cutting apparatus (11) comprises a stock feed and orienting mechanism (13) for feeding and orienting stock to be cut, a cut piece handling mechanism (15) for manipulating a workpiece cut from the stock, a cutting member (19) and a cutting member positioning mechanism (17). The various components of the apparatus (11) are configured such that any engagement of the cutting member (19) with a workpiece has a common center point of cut (21). The point of cut (21) is defined as the point of coincidence for the center of rotation of the stock workpiece, the center of vertical pivot of the cutting member (19), the center of horizontal pivot of the cutting member (19), the vertical-tiltable travel of the cutting member (19) as well as the transverse-rotatable travel of the cutting member (19).

Abstract: A method and apparatus for fine shearing a metal workpiece involves placing the workpiece on a stationary die surface for support and driving a single punch against the workpiece such that at least a portion of the workpiece is placed in compression. The punch is then driven into and through the workpiece along a predetermined path which has a first directional component both perpendicular to and directed toward the die surface and a second directional component both parallel to the die surface and directed into the compressed portion of the workpiece. The punch is driven with a force having components both perpendicular to and parallel to the path of the punch. The force component perpendicular to the punch path is large enough to keep the compressed portion of the workpiece in a plastic state. The force component parallel to the path of the punch is large enough to overcome the shear strength of the workpiece along the path.

Abstract: A mortise and bevel cutter (10) includes a base (11) and a table (12) mounted thereon for rotation. A platform (22) is mounted for pivotal movement on table (12). A cutter assembly which includes a blade holder (40) and blade (45) is mounted on a handle (29) in a position to cut molding which is positioned on platform (22). A cut having a desired angle can be made by adjusting the position of the table (12) and the platform (22) to variable positions. A wedge (19) is mounted to move progressively under the platform (22) in order to position it securely at any desired angle.

Abstract: Compound angle saw cuts are made with precision on lumber components in the mass production of hip, valley and jack rafters. The required cuts are made by a power-driven circular saw blade which is caused to traverse a linear guideway in one direction with the saw blade in a first angular position to produce a first compound angle cut, followed by reverse traversing of the saw blade along the linear guideway while in a second angular position perpendicular to the first angular position to produce a second compound angle cut. The saw blade, its linear guideway and operating elements are attached to a control arm forming a part of a pantograph linkage which can be driven around a sector gear having a protractor scale to establish the roof slope angle for which rafters are being cut. The sector gear is adjustable on a primary support along a linear path to allow the axis of rotation of the control arm and saw blade to be located in a reference plane defined by the top surface of a lumber component conveyor.

Abstract: A letoff truck having wheels for rolling the truck to and from a bias cutter feeder is releasably connected to the feeder for movement of the truck with the feeder during angular adjustment of the feeder for a desired bias angle setting. The truck is also mounted for transverse movement relative to the feeder to compensate for deviations in the position of the edge of the goods conveyed from the letoff truck to the feeder. Adjustment of the feeder angle about a pivot axis to provide the desired bias angle setting is provided by a powered sprocket mounted on the feeder and positioned between idler sprockets. The sprockets are engageable with a chain member extending between the ends of a transverse track on which one end of the feeder is supported by rollers. When the desired feeder position is obtained the feeder may be positively locked in that position.

Abstract: A saw table outfit is made up of a table frame manufactured using lengths of aluminum section. There is a base plate mounted on the frame for supporting a power saw. In the base plate there is a gap or hatch which is covered by a plate with a slot in it for the blade of the power saw. Under the base plate stop and guide elements for the power saw are formed by the material of the plate. The plate and hatch are formed with plural interlocking teeth and the relative position between the plate and hatch can be changed by selecting which teeth of the plate and hatch to interlock.

Abstract: A saw mechanism comprises a work support, a round table rotatably carried on said work support, and a pivot support carried by the table. A guide is mounted on the pivot support for pivotal movement and includes a pair of parallel rods. A saw includes a saw housing and a motor driven blade on the housing. The housing has a pair of passages which slidably receive the rods so that the housing can be adjusted relative to and along the rods.

Abstract: A combination table and miter saw is provided which has a slotted strip attached directly to a rotatable work supporting base plate. The slotted strip is part circular and forms a bearing connection for a saw assembly which accommodates pivoting of the saw assembly about an axis through a working surface of the bottom of the base plate. A threaded adjusting spindle for locking the saw in position during table sawing is connected to a bearing block which also is attached to the slotted strip.

Abstract: A miter saw having a saw table which carries the saw unit and is rotatably mounted in a base plate is provided with means for locking the saw table. Such locking means comprise at least one through bore in the fence extending over the upper surface of the saw table and a bolt having a circular cross-section and being rotatably fitted in the through bore. Both the through bore and the bolt comprise an annular shoulder continuously increasing its distance from the saw table. The annular shoulders are in engagement and by rotating the bolt its end surface can be pressed onto the saw table.

Abstract: For cutting an elongate rubbery strip, there is disclosed an apparatus which largely comprises transmitting means operative to transmit the elongate rubbery strip to a predetermined position, an anvil located underneath the predetermined position and formed with an elongated groove extending at angle with respect to the transverse direction of the rubbery strip, the angle between the longitudinal direction of the elongated groove and the transverse direction of the rubbery strip being variable by means of adjusting means. The apparatus for cutting the elongate rubbery strip further comprises a cutting mechanism operative to cut the elongate rubbery strip on bias throughout the width thereof in cooperation with the anvil.

Abstract: A cutter is illustrated to have a pivoted support for adjusting the angle of cut of a piece of vinyl or aluminum siding which is held in a fixed position in longitudinal alignment.

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: The invention relates to corner shears for cutting out obtuse-angled to acute-angled corners from sheet metal by means of upper and lower knives (41, 40) which interact with one another in the manner of scissors and which, to form an angular cutting edge, each consists of two knives placed against one another in a V-shaped manner and supported on knife carriers (52, 53, 19,20) pivotable about a vertical axis A, the pivot axis (A) passing respectively through the cutting corner and means being provided for adjusting the angle .alpha. between the cutting edges, each upper-knife carrier (52, 53) being connected positively, without the shear stroke being impeded, to the corresponding lower-knife carrier (19, 20) via an engagement piece (72) fastened to the upper-knife or lower-knife carrier.

Abstract: Rotary saw blades mounted on primary supports of a truss component cutting machine require angular adjustment to produce various required angle cuts of the truss components without changing the necessary lengths of the components. To achieve this result, the outer face of each rotary saw blade must pivot around a fixed reference axis lying on the outer face of the blade. The system provides a number of diverse precision adjustments of parts on which the saw blades are supported to assure that the blades in all angularly adjusted positions will have their outer faces remaining on the fixed reference pivot axis.

Abstract: A mitre box system for cutting 90.degree. wall intersection compound angles on interior molding and similar trim without need to know the angle to be cut either before or after cutting, includes a base with upright slotted sides therealong and a rising bed pivotal upward about an end of the mitre box from a position parallel with the base to a position indicated by a linear scale on the end of the mitre box as being equal to a measured linear distance from the end of a level of length equal to the rising bed to a ceiling, one end of the level being for the measurement at the corner requiring the compound angle; each end of the mitre box has similar provisions and the base extends out at either end for clamping.

Abstract: An attachment for a miter gauge of the type having an arm slidably movable in the slot of a work table so that a wooden workpiece is moved into engagement with a table saw blade depending upon the angle of the arm with respect to the miter gauge body. The attachment is mounted on the miter gauge in such a manner that two workpieces one with a taper cut and the other with a miter cut can be successively cut and then joined along their bias edges to form a ninety degree joint, without readjusting the miter gauge.

Abstract: A power saw for rapid and repetitive accurate cutting of truss members on predetermined angles to insure tight fitting truss joints. The power saw is cycled vertically in a reciprocating mode and indexed at the limit of its respective up and downstrokes after being set at precise cutting angles. An adjustable saw indexing cylinder permits a wide range of web angle cuts. Workpiece clamps, mounted on a workpiece guide, coact with a web length stop to insure cutting webs of equal length and initiate the substantially automatic reciprocation and indexing of the saw acting on the workpiece.

Abstract: A motorized saw for cross-cutting and mitering elongated workpieces mounted for sliding movement on a pair of spaced parallel guide rods supported by spaced trunnions attached to the ends of a support arm. The support arm is rotatably mounted intermediate its ends on a frame and has a worktable fixed thereon which includes a cutting channel that defines the pathway of travel of the saw. A pair of aligned fence members have their adjacent ends disposed in close proximity with the cutting channel and by means of a link rod operatively connected to each fence member and support arm, the fence members automatically adjust themselves to the cutting channel on selective movement of the support arm to a position for effecting a desired angle cut by the saw.

Abstract: This invention relates to a roller table for woodworking machines, especially for tenoning and slot mortising machines for the manufacture of window frames, which can be moved in translation along a straight guideway and which is provided, at the end facing away from the guideway, with a longitudinal adjustable supporting plate for the overhanging end of the workpieces.

Abstract: A table saw guide apparatus includes a generally flat guide plate adapted to overlie the tabletop of a table saw, and an upstanding stop device is disposed adjacent to, and space laterally by a short distance from the saw blade. A projection is disposed on the underside of the plate and is adapted to fit securely within a tabletop groove for ficing the plate on the tabletop. A substantially flat workpiece carrier is disposed on, and in overlying relationship, with the upper surface of the plate. The carrier has an edge adapted to engage the stop device for slidable engagement therewith. The upper surface of the workpiece carrier is flush with the top edge surface of the stop device to permit the workpiece to rest on top of both the top edge surface device and the upper surface of the carrier. A gauge device is mounted removably in the upper surface of the carrier for engaging the workpiece and for helping position it angularly relative to the saw blade.

Abstract: A mat cutting device has a planar base for supporting a mat to be cut, the base having a pair of supports, each at opposite sides thereof with a guide rod mounted therebetween and having a longitudinal axis parallel to the base. An elongated cutting head having a blade at one end thereof is mounted at the other end opposite the blade on the guide rod, the cutting head being longitudinally displaceable therealong and pivotable about the rod axis, the cutting head being engageable with a movable stop mounted on one of the supports and being axially adjustable for stopping the cutting head at a predetermined distance from the support and for keeping the cutting head with the blade thereof tilted upwardly for allowing insertion and removal of the mat therebeneath.

Abstract: Fibrous board transition parts are produced on the job site from standard lengths of preformed fiberboard duct units. Transition parts are interposed between linear runs of duct pieced together to change direction of the duct work. The transition parts, sometimes referred to as elbows or bends, can be easily fabricated on the job site by modifying standard lengths of preformed linear duct by cutting and removing pie-shaped sections from the duct. The modified duct can be bent inwardly to form a one-piece arcuate transition part wherein the outer wall section remains intact and provides structural strength to the transition part. The seams are secured with structural adhesive tape wrapped around the transition part.

Abstract: A strip of plastic material is cut by clamping the strip and then moving a cutting blade from a retracted position to a first position in cutting engagement with the strip. Simultaneously a supporting blade in overlapping relation with the cutting blade is moved to the first position for lifting the strip. The movement of the supporting blade stops at the first position and the cutting blade movement is continued through the strip. The cutting surface of the cutting blade is recessed adjacent the cutting edge so that upon movement of the cutting blade the contact with the strip is minimized to prevent the formation of burrs on the severed ends of the strip. After the strip is severed the cutting blade is retracted to the first position. From the first position, the cutting blade and supporting blade are moved to a fully retracted position and the strip unclamped so that the severed portion of the strip can be removed and the remaining portion of the strip moved into position for the next cut.

Abstract: A device for cutting an edge of a workpiece comprising, a drive head having a carrier, a support bracket connected to the drive head for fixing the drive head with respect to the working piece edge, a tool holder reciprocately movable in and by the drive head, an impact cutting tool connected to the tool holder for cutting the workpiece edge, and a guide sleeve rotatably mounted but fixable in position in the carrier for guiding the motion of the cutting tool. The guide sleeve is rotatable to rotate the cutting tool and bring different edges thereof into a cutting position. Depending on the shape of the cutting tool, a plurality of edges are provided which can be changed as they become dull by rotating the guide sleeve. The axis of a cutting end of the impact tool can also be offset from an axis of the sleeve and an axis of a clamping end of the cutting tool connected to the tool holder to vary the depth at which the edge of the workpiece is cut.

Abstract: A motor operated circular miter chop saw is pivotally mounted on a generally horizontal axle pivot pin about which it rotates in a vertical plane with the axle pivot pin being carried by a cast support base structure provided with means allowing both lateral adjustment and vertical adjustment of each end of the axle pivot pin. Angular orientation of the work piece is provided by an angularly adjustable fence rotatably carried by the cast base.

Abstract: A sawing device for translating the shape on a template to an accompanying sawing blade which gauges the workpiece to cut the workpiece in the desired shape and includes a table which detachably supports a pattern or template. The template is securable at one edge of the table surface. A track is supported at opposite edges of the table in a carriage assembly. The carriage assembly permits the entire track assembly to be moved in the X-X axis or longitudinally along the table. The carriage comprises a cylindrical sleeve secured to the end of the track which receives a longitudinal rod mounted to the table by appropriate brackets. The track defines a groove and supports a motor. The motor has a lip engaging the groove so the motor may be moved in the Y-Y axis or transversely of the table. The motor drives a vibrating or oscillatory blade which depends from the motor through the slot. The guide member also depends from the motor and is received in a groove in the subjacent template.

Abstract: Precision cutting of cove molding in all commercial sizes and designs is obtained by an apparatus which includes a flat bed plate having a straight saw blade slot formed therethrough and a power saw guideway along the slot. A rest for cove molding extending away from one side of the saw blade slot at an angle of 45 degrees thereto includes opposite side flat surfaces which rise from the top of the bed plate at angles of 45 degrees to the bed plate, the rest having a flat bottom surface to engage the bed plate. As an attachment to existing saw table equipment, the cove molding rest may have a bottom recess including an end stop surface to fit over a protractor guide of the existing equipment. All customary angle cuts of the cove molding are greatly facilitated.

Abstract: A cutting device for slicing through a plug of potting compound is disclosed which has a plug support and an inverse plow shaped cutter blade movable relative thereto.