Abstract: A motor-driven saber saw includes a housing (4), having a neck (8) which serves as a handle and has a tool opening (6), a guide device (22) for guiding the saber saw (2) on a workpiece and releasably connectable to the housing (4) in a region of the housing neck (8) and including a connection device (21) for connecting the guide device (22) to the housing (4), the housing (4) having connecting receptacles (18) for guiding the connection device (21), an adjusting device (30) mountable on the connection receptacles (18) for securing the connection device (21) to the housing, and a rectilinear spring member (36) for biasing the adjusting device (30) to a locking position and extending substantially in a longitudinal direction of the housing neck (8).

Abstract: A circular saw assembly of the type that includes a motor housing, a handle coupled to the motor housing, a generally circular saw blade disposed within a blade housing at a first end of the motor housing, and a foot member through which the blade extends for guiding the saw assembly along a work surface, where the circular saw assembly including a depth of cut locking system and an angle of cut locking system. The depth of cut locking system includes an arcuate bracket with an arcuate slot, and an engagement member extends through the slot and is operatively connected to the motor housing and slideable in the arcuate slot. The angle of cut locking system includes a bracket having an arcuate slot and an engagement member movable in the slot and configured to the bracket. A biasing member is provided to bias the engagement member, and at least one detent recess is provided to retain the engagement member therein.

Abstract: A cutting tool that improves operability by facilitating operation of a lever for operating a clamp mechanism of a guide member is provided. A clamp mechanism is constituted by a clamp pin that protrudes its distal end to the outside of the blade case while penetrating a depth guide and the blade case, a first lever that is connected to the distal end of the clamp pin and directly moves the clamp pin in the axial direction, and a second lever that is connected to the upper portion of the first lever through a connecting pin and has a cam lever. When the second lever is rotated toward the blade case, the cam lever presses the connecting pin to tilt the first lever, whereby the clamp pin is pulled outward. As a result, the depth guide is pressed to the inner surface of the blade case and clamped.

Abstract: An reciprocating saw comprising a housing, a motor, a spindle movably supported within said housing and having a front end adapted to support a saw blade, a drive assembly, and an adjustable shoe assembly. The adjustable shoe assembly includes a shoe, a shoe support member pivotally supporting the shoe, a locking member pivotally supported by the housing, and a lever connected to the locking member.

Abstract: A portable electrical tool includes a tip tool; a cylindrical housing accommodating a motor including a chuck attachably and detachably holding the tip tool at tip end of a rotation shaft; a base including a surface plate which slides on an upper surface of work material, and which allows the tip tool to protrude from the surface plate downwardly, a cylindrical portion including a cutout portion, and a lever having a cam surface, and rotatable to a fixed position and a release position. When the lever is in the fixed position, a gap at the cutout portion is narrowed to stop movement of the cylindrical housing. When the lever is in the release position, the cylindrical housing is movable by weight in the cylindrical portion. The tool includes a stopper to stop a rotation of the lever between the fixed position and the release position.

Abstract: The present invention is directed to a keyless shoe lock assembly for a reciprocating saw. The keyless shoe lock assembly is capable of engaging and releasing a shoe bracket for the positional adjustment of a shoe relative to a blade clamp of the reciprocating saw. The keyless shoe lock assembly includes a shoe bracket for positional adjustment relative to a lock plate, a pin for alternately engaging and releasing the shoe bracket, and a lever connected to the pin for the rotation thereof. The keyless shoe lock assembly may be used to alternately engage and release a shoe bracket without additional hardware.

Abstract: A machine for cutting plate-shaped workpieces, incorporates a tool guide (7), an operating handle (13), and a cutting tool (6) which revolves along the tool guide (7). By moving the operating handle (13), the tool guide (7) with its cutting tool (6) can be shifted from an idle position into an active position. In its idle position the cutting tool (6) is disengaged from, and, in its active position it is engaged in, the workpiece to be processed. Provided between the operating handle (13) and the tool guide (7) is a variable ratio transmission mechanism (14, 18) with a transmission ratio which varies with the movement of the operating handle (13) as a function of the position of the tool guide (7) and its cutting tool (6) relative to the workpiece.

Abstract: The trim attachment for a portable circular saw is generally L-shaped, having a generally rectangular, planar, horizontal mounting plate and a perpendicular fence extending downward from a lengthwise side thereof. The perpendicular fence forms an insert portion therealong for receiving the blade guard of the circular saw. The mounting plate is adjustably mounted to the shoe of the portable circular saw on the underside of the shoe using carriage bolts that pass through, and are adjustable along, slots cut into the mounting plate and through corresponding holes in the shoe of the saw, and that are secured by wing nuts. Trim of relatively small width may be easily and accurately cut from a common wood member, such as a 2?×2?–2?×8? members. The trim attachment may also be useful in dressing the edge of a wood member.

Abstract: A plate joiner including a fence support, a drive, and a fence system. The fence support includes a cutter and a contact surface, which defines a cutter slot. The cutter is arranged and configured to protrude from fence support through cutter slot to make a plunge cut into a surface of a workpiece when the contact surface is pressed against the surface and the cutter is plunged into the workpiece by pushing on a rearward handle portion of the tool. The drive is arranged and configured to rotatably drive the cutter through a motor. A preferred fence system includes an angle adjustment system arranged and configured to position the fence at a wide range of fence angles and, at any selected distance from a top face of the workpiece to the fence, the distance from the top face of the workpiece to the cutter remains constant as the front fence angle is adjusted. A preferred fence system includes a trunnion which pivotally couples the front fence to the fence system.

Abstract: A battery-operated hand power tool (10), in particular a power saw (101), having a housing (12) into which a battery pack (28) can be detachably inserted in captive fashion, and between the battery pack (28) and the housing (12), an elongated auxiliary tool (38) is stored, in particular for releasing the tool, preferably the saw blade, is made more secure and convenient to manipulate by disposing the auxiliary tool (38) in such a way that it is visible from outside and is easy to feel, and in particular can be reached through.

Abstract: An reciprocating saw comprising a housing, a motor, a spindle movably supported within said housing and having a front end adapted to support a saw blade, a drive assembly, and an adjustable shoe assembly. The adjustable shoe assembly includes a shoe, a shoe support member pivotally supporting the shoe, a locking member pivotally supported by the housing, and a lever connected to the locking member.

Abstract: A motor-driven power saw (2) is formed of a housing (4), on which a guide assembly (9) for guiding the power saw (2) on a work piece is removably attached at a tool opening (5) in the region of a device collar (3), whereby the guide assembly (9) has a connecting assembly (10) having two connecting parts (14) and a connecting receptacle assembly (12) is formed on the housing (4), providing a guide for the connecting parts (14) and which can be secured at the connecting parts (14) by means of a form fit with an adjusting assembly (36) relative to the housing (4). The connecting parts (14) are formed rodlike and have a rounded cross-section at least regionally. The connecting parts (14) have a rodlike shape and, at least regionally, have a rounded cross-section.

Abstract: A hand-held tool for quickly and easily removing duct material surrounding a fiber optic cable. The tool contains a motorized saw blade, with an adjustable depth of cut gauge formed integral with the cutting floor. In use, a technician first determines the thickness of a particular duct to be removed, then adjusts the depth of cut for the saw blade to provide the desired cut without damaging the underlying fibers. Once adjusted, the technician can then turn on the tool, which activates the saw blade and effectuates the desired cut (either axial or radial).

Abstract: A circular saw including a frame, a drive means mounted to the frame coupled to a planar saw blade for rotation about a drive axis within a cutting plane and a base pivotably mounted to the frame about a first axis substantially parallel to the cutting plane and a second axis which is generally substantially parallel to the drive axis. In one aspect, the relative pivotal movement of the frame about the first axis is determined by a trim adjuster including disengageable position locator which is operable to provide a plurality of predetermined discrete engaged positions and a locking means for locking the position of the frame relative to the base over a continuous range of settings. The invention also provides a mounting assembly including a course adjustment means and a fine adjustment means to determine the pivotal movement of the frame about the second axis relative to the base.

Abstract: An adjustable reciprocating saw has the ability to adjust the orientation of the saw blade in relation to the rest of the tool. The saw blade can pivot about two transverse axes, one parallel with and one perpendicular to the reciprocating motion axis of the saw blade. The portions of the saw's housing which rotate relative to one another are attached with a rotating joint comprising a pin and groove design. Rotation locks selectively prevent rotation of the saw blade about each axis. The rotation locks can be released through simply depressing buttons on the saw. A rear internal bearing increases the durability and decreases the size of the saw. A keyless adjustable shoe is mounted to the saw.

Abstract: A plate joiner including a fence support, a drive, and a fence system. The fence support includes a cutter and a contact surface, which defines a cutter slot. The cutter is arranged and configured to protrude from fence support through cutter slot to make a plunge cut into a surface of a workpiece when the contact surface is pressed against the surface and the cutter is plunged into the workpiece by pushing on a rearward handle portion of the tool. The drive is arranged and configured to rotatably drive the cutter through a motor. As shown in the drawings a preferred fence system includes an angle adjustment system arranged and configured to position the fence at a wide range of fence angles and, at any selected distance from a top face of the workpiece to the fence, the distance from the top face of the workpiece to the cutter remains constant as the front fence angle is adjusted. A preferred fence system includes a trunnion which pivotally couples the front fence to the fence system.

Abstract: The present invention involves an air empowered circular saw apparatus for the cutting of material by either a left handed or a right handed operator. The apparatus includes an elongated base plate with a support frame extending from one side thereof; and an output housing supported on the distal end of the support frame, with an elongated drive motor housing supported on one side of the support frame. A saw blade is supported on the opposed side of the support frame, wherein the drive motor housing is swingable about an axis of rotation of an output shaft through the output housing to permit handed control of the air powered saw apparatus to be changed.

Abstract: A battery powered circular saw is provided with a novel motor housing and handle assembly having a rearwardly extending primary handle inclined 15° to 40° relative to a rearwardly longitudinally extending tubular housing member. A battery pack is attached to the rear end of the primary handle and is provided with an elongated projection which extends into the elongate tubular housing.

Abstract: The present disclosure relates to a jig saw including a base structure, and a housing pivotally moveable relative to the base structure about a first axis that extends longitudinally along the base structure. A motor is positioned within the housing. The motor reciprocates a blade in an up and down motion. A connecting member extends between the housing and the base structure. The saw also includes a first wedge that cooperates with the connecting member to clamp the housing relative to the base structure. The first wedge is moveable to a first position in which the connecting member is caused to compress the housing and the base structure together such that pivotal movement between the housing and the base structure is inhibited. The first wedge is also moveable to a second position in which the housing can be manually pivoted relative to the base.

Abstract: A reciprocating saw includes a hexagonal head bolt (11) for releasably tightening a guide shoe (6) and a manually-operated bolt-tightening lever (15) fitted over the bolt (11). The bolt-tightening lever (15) includes a lock plate (17) which has at its front end a socket hole (22) that can fit around the head (14) of the hexagonal head bolt (11) and has a serrated edge with twelve notches each having an interior angle of 120 degrees. The lock plate (17) has at its rear end four engaging teeth (23) at intervals of four degrees around axis O of the hexagonal head bolt (11). The shape of the outer portion (18) is such that the outer portion can cover the lock plate (17). Moreover, the outer portion (18) has on its top side a circular hole (24) in which the head (14) of the bolt (11) can be fitted.

Abstract: A tool-less guide shoe that includes a post is received in a hole formed in the nose section of a power saw. The post includes laterally extending locking slots and a longitudinal extending positioning slot. At the upper end of the post, a stop plate is formed at the end of the positioning slot and adjacent to a removal slot. A locking plate is used to secure the guide shoe in a position by fitting in the locking slot. The guide shoe is removed from the saw by placing the locking plate adjacent the stop plate and rotating the post approximately 90° into the removal slot.

Abstract: The present invention provides a circular saw including a housing, a motor within the housing, a circular saw blade rotatably driven by the motor, a base and a bevel angle adjustment mechanism. The bevel angle adjustment mechanism pivotally interconnects the base to the housing such that the circular saw blade is adjustable relative to the base through a range of bevel angles. The bevel angle adjustment mechanism includes a first member carrying a detent and a second member defining a cooperating recess. The detent and the cooperating recess positively define at least one predetermined bevel angle setting.

Abstract: A battery powered circular saw is provided with a novel motor housing and handle assembly having a rearwardly extending primary handle inclined 15.degree. to 40.degree. relative to a rearwardly longitudinally extending tubular housing member. A battery pack is attached to the rear end of the primary handle and is provided with an elongated projection which extends into the elongate tubular housing.

Abstract: A chainsaw foot for supporting the weight of a chainsaw during substantially vertical use and for fixing the angular orientation between the chainsaw guidebar and the material to be cut. One side of a hinge is attached to a substantially flat baseplate having a rectangular aperture therethrough. The other side of the hinge is attached to a U-shaped clamp. The chainsaw guidebar is removably fixed between the legs of the U-shaped clamp by set screws. A slotted adjusting bracket is fixed to the baseplate proximate to the U-shaped clamp. A locking means attached to the U-shaped clamp engages the slot of the adjusting bracket to thereby allow a user to set and lock the angle of the chainsaw guidebar with respect to baseplate and, consequently, the material to be cut.

Abstract: The disclosed portable circular saw includes a motor having an axis, a housing enclosing the motor therein, a handle carried by the housing, an arbor operatively connected to the motor, the arbor having an axis of rotation substantially perpendicular to the motor axis, and a shoe supporting the housing thereon. The housing is inclined at an angle relative to the shoe. The handle is also disposed between the housing and the shoe. Preferably, the housing inclination angle is about 45.degree.. The saw may also include a drive shaft disposed on the motor axis and a transmission mechanism connected to the arbor and the drive shaft. This transmission mechanism creates a torque in the rotational direction opposite to the rotational direction of the arbor. Preferably, the transmission mechanism includes a first gear disposed on the drive shaft, and a second gear disposed on the arbor, where the second gear meshes with the first gear.

Abstract: A plate-joinery system includes a chain-saw plate joiner where the cutting mechanism includes a cutting-chain driven about a saw-bar. The cutting mechanism of the chain-saw plate joiner may be advanced on rails to one of a set of predetermined depths. The increased recess depth allowed by the chain-saw and the resultant increase in both glueable surface area and mechanical engagement permit high-strength right-angle joints to be made with the speed of conventional plate-joinery. Plate-joints of more conventional proportion may also be made. The plate joinery system also includes specialty plate configurations and compatible fasteners that permit many joints to be rapidly assembled without resort to either manual glue application or external clamps. A series of high-precision, low-friction cutting devices suitable for general introduction is also described.

Abstract: The disclosed portable circular saw includes a motor having an axis, a housing enclosing the motor therein, a handle carried by the housing, an arbor operatively connected to the motor, the arbor having an axis of rotation substantially perpendicular to the motor axis, and a shoe supporting the housing thereon. The housing is inclined at an angle relative to the shoe. The handle is also disposed between the housing and the shoe. Preferably, the housing inclination angle is about 45.degree.. The saw may also include a drive shaft disposed on the motor axis and a transmission mechanism connected to the arbor and the drive shaft. This transmission mechanism creates a torque in the rotational direction opposite to the rotational direction of the arbor. Preferably, the transmission mechanism includes a first gear disposed on the drive shaft, and a second gear disposed on the arbor, where the second gear meshes with the first gear.

Abstract: The disclosed portable circular saw includes a motor having an axis, a housing enclosing the motor therein, a handle carried by the housing, an arbor operatively connected to the motor, the arbor having an axis of rotation substantially perpendicular to the motor axis, and a shoe supporting the housing thereon. The housing is inclined at an angle relative to the shoe. The handle is also disposed between the housing and the shoe. Preferably, the housing inclination angle is about 45.degree.. The saw may also include a drive shaft disposed on the motor axis and a transmission mechanism connected to the arbor and the drive shaft. This transmission mechanism creates a torque in the rotational direction opposite to the rotational direction of the arbor. Preferably, the transmission mechanism includes a first gear disposed on the drive shaft, and a second gear disposed on the arbor, where the second gear meshes with the first gear.

Abstract: A tool for sawing plaster board being a hood spring loaded hingably attached to the motor of a circular saw such that the blade is completely enclosed in the hood when the saw is not in contact with the surface being cut. An adjustment screw is provided for adjusting the depth of cut. The hood is also equipped with a door with a spout attachable to a source of vacuum for withdrawing kerf.

Abstract: A hand circular saw has a saw blade rotatable about a saw shaft axis, a housing which receives the saw shaft axis, a base plate which supports the housing and is movable with the latter, the housing being turnable relative to the base plate about two axes extending perpendicular to one another independently from one another and arrestable, the axis including a first axis which extends parallel to the saw shaft axis and operates for adjusting a cutting depth, and a second axis which extends both parallel to the base plate and to the saw blade and is used for adjustment of a miter angle, a coulisse having a circular arc-shaped guiding track and a coulisse block which determine a position of the second axis. The coulisse has a coulisse part which is fixedly connected with the base plate and has an upwardly curved ring portion which is also arranged on the base plate.

Abstract: The saw comprises a cased motor driving a circular saw blade that is pivotally mounted to a baseplate to vary the cutting extension below the baseplate. A channel-shaped part that is of smaller cross-section than an open slot in the baseplate is used for guiding the baseplate during a cutting operation over a worktable by abutment against or location over an upstanding guide located on the worktable. The channel-shaped part is medially pivoted to the baseplate and its angle thereto is adjusted by way of a cam so as to vary the angle of the baseplate, and hence of the saw blade, relative to the direction of travel, thereby to permit the production of a width of cut greater than the width of the saw blade.

Abstract: The adjustable guide shoe is mounted on a support bar which is received within an elongated slot formed in the nose section of the power saw. The support bar is provided with plural sets of opposed cam faces which are provided in side-by-side pairs spaced longitudinally of the bar. A manually operated plunger is mounted in the nose section and is spring biased toward the support bar. The plunger bar includes cam surfaces adapted for complimentary wedging engagement with selected sets of cam faces on the support bar to achieve a self-locating function for the support and guide shoe mounted thereon.

Abstract: An electric motor operated hand circular saw has a base plate, a motor housing turnable relative to the base plate, an electric motor accommodated in the motor housing and having a drive shaft, a circular saw blade arranged on the drive shaft of the electric motor, and a pre-slitting abutment for adjusting a pre-slitting position of the saw blade in which the saw blade penetrates into a surface of a workpiece to be sawed by a limited pre-slitting depth.

Abstract: A simple miter guide uses planar sheet material to define an overlay panel, a saw guiderail and depending lumber guides and spacers which orient the lumber at a predetermined angle relative to the saw blade and space the guide over an underlying surface. The guide is designed specifically for construction lumber such as two-by-fours and two-by-sixes, and is used by placing the guide on a flat surface, and feeding the lumber into the guide from the back until it is properly aligned for the saw cut. The guide and lumber can be aligned to establish an orthogonal square-cut, or an angle-cut such as 45 degrees. A saw guiderail guides the end of the saw foot as it moves across the saw support raceway, spacing the sawblade adequately from the guide to prevent damage, and permitting an angled undercut to be made. Means to mount the guide to an underlying surface are provided, although unmounted operation is useful too.

Abstract: A motor driven hand circular saw has a base plate arranged to be positioned over a workpiece, and a saw blade which is displaceable parallel and tiltably about a turning axle relative to the base plate for performing inclined or bevel cuts so that by tilting of the saw blade relative to the base plate about the axle, the saw blade and the axle are displaced parallel to the base plate with a stroke which is proportional to a respective tilting angle transversely to a direction downstream of a cutting point and counteracts a natural displacement of a saw engaging line of the saw blade on the workpiece.

Abstract: A motor-driven hand circular saw, has a base plate, a motor, a drive housing surrounding the motor, a saw blade provided with saw teeth and being in operative connection with the motor, a saw blade housing accommodating the saw blade, an upwardly movable saw shaft having the saw blade, a hinge arranged so that the drive housing together with saw blade is movable upwardly and downwardly normal to the saw shaft with respect to the base plate for cutting depth adjustment. The saw blade is movable in and out. A turning hinge having a turning axis extends in a feed direction so that the saw blade housing is connected through the turning hinge with the base plate, and there is at least one upper and lower handle with respect to the base plate. The saw blade housing with the saw blade is located at the left and the drive housing is located at the right as considered in the feed direction. The hinge for cutting depth adjustment is arranged at the front side of the base plate as considered in the feed direction.

Abstract: A portable circular saw includes motor-and-gear case pivotally supported on a guide shoe by a rear pivot mechanism for rotation about a transverse rear pivot axis, thus allowing for selective adjustment of the blade cutting depth on the opposite side of the shoe. In such an arrangement, the depth of cut setting is increased and decreased when the motor-and-gear case is rotated relative to the shoe in respective first and second directions, while an upper pivotal blade guard, which is mounted on the motor-and-gear case for rotation about the spindle, rotates in opposite rotational directions in response to respective increases and decreases in the depth of cut setting. Cam and cam follower mechanisms are provided for maintaining the riving knife and the blade and shoe in the same relative angular orientation in a fore-and-aft cutting plane regardless of the depth of cut setting.

Abstract: Flat multi-layered work pieces, such as panels with a decorative or finish surface coating (5), are prescored and cut through by the same saw blade to avoid damage to the surface coating. For this purpose a circular saw (1) is guided along a guide rail (7) and its saw blade (4) is adjustable to a prescoring depth and to at least one lateral prescoring position to make a first prescoring cut only through the cover layer (5) in a sawing direction in synchronism with the blade rotation direction. If necessary, the blade is adjusted to a second lateral prescoring position to make a second prescoring cut only through the cover layer (5) in a cutting direction in synchronism with the blade rotation. Finally, the saw blade (4) is adjusted to its full cutting depth and to a lateral position between the two prescoring positions and a full cut is made through the entire work piece (6) in a sawing direction counter to the rotation direction of the saw blade.

Abstract: An electric circular saw of the type including a mechanism for tilting a base relative to the plane of a blade is provided wherein a side knob for being gripped by the user during cutting operation pivotally connects the base and a body of the circular saw through a base attachment portion and a bevel plate having an arcuate guide groove extending through an angular distance corresponding to a tilt angle of the base relative to the blade. The side knob is threaded to the base attachment portion and movable together with the base when the base is tilted. The side knob is spaced from a guide surface of the base by a distance at least larger than a maximum radius of the side knob. The distance between the base and the side knob is constant regardless of the relative angular position of said base and the blade, so that circular saw can be held stably and hence is capable of performing an accurate cutting operation.

Abstract: A portable circular saw with a 60.degree. bevel cut capability that is provided by a combination of blade diameter, height of front and rear pivot points above the footplate, the ability to tip the saw about a front hinge point to avoid projections contacting the footplate at a 60.degree. angle and recesses and orifices provided in the footplate at points where interference would normally occur between the motor housing assembly and the saw blade when the blade is at a 60.degree. bevel angle so as to prevent any interference of the footplate with the motor housing assembly and saw blade. A positive stop is provided at angles of 45.degree. and 60.degree..

Abstract: The power saw is provided with a shoe pivotally mounted on a post which is mounted in a cavity of the nose section of the gear case of the saw. The post has a multiplicity of grooves separated by lands which are flat between the grooves. A lock pin is mounted in the nose section transverse and spaced from the post. When the pin is in its normal locking position, the round exterior of the pin engages one of the grooves on the post to retain the post and shoe in position relative to the saw. The lock pin has a flat section which is parallel to and spaced from the flats on the post when the pin is rotated to the release position freeing the post and shoe for movement to adjust the position relative to the saw. A lever is mounted on the end of the pin which projects through the side of the gear case. The inside of the lever has a dimple which engages the soft boot covering the gear case.

Abstract: A method and apparatus for preparing skived belting ends for joining by means of fasteners, and like products. A guide block is temporarily fastened across the width of the belting, serving as a guide for a chain saw tool. A first side edge portion of the tool slidably engages the guide block while permitting the cutting plane to be transverse to the direction of said width and intersecting with the belting surface to skive it. Thereafter, a second side edge portion of the tool slidably engages the guide block while permitting the cutting plane to be parallel to the direction of said width and intersecting with the belting to cut off an end thereof.

Abstract: In a portable circular saw depth of cut adjustment is effected by pivoting movement between a shoe 24 (which supports the saw on a workpiece) and a motor and gear case housing 26 (carrying the saw blade 12) about a pivot connection 28 rearward of the motor and gear case housing. Forward of the housing 26 an upwardly extending arcuate depth slide 38, fixed to the shoe 24, slidably engages an arcuate depth guide 40 carried by the motor and gear case housing 26. Towards the upper end of the depth slide 38, and in generally fixed relation to it, a clamping assembly 42 selectively clamps the depth slide 38 and depth guide 40 together to establish a depth of cut adjustment setting. The essentially fixed relationship of the locking knob 100 of the clamping assembly 42 to the shoe 24 mean that the operations of changing depth adjustment setting may be made without changing operator's hand positions on the saw.

Abstract: A biscuit jointer cutter for making segment shaped cuts by plunge cutting has a shoe assembly reciprocally movable relative to a housing containing a motor. The shoe assembly houses a cutter blade rotatably driven by the motor, and has a front opening through which the blade is movable in a forward direction for cutting and retractable in a rearward direction after cutting. A fence assembly is mounted on the shoe assembly above the front opening. The fence assembly is adjustably movable upwardly and downwardly relative to the front opening by means of a rack and pinion mechanism, and also has a fence adjustably pivotable through 90 degrees. A depth of cut adjustment mechanism is operatively connected between the shoe assembly and the housing, and includes a movable rod cooperative with a stop. The stop is a turret selectively rotatable about an axis eccentric of the rod and having recesses of different axial length.

Abstract: The invention includes a power operated circular type hand saw having a motor disposed within a housing, a rotating circular sawblade driven by the motor, and a work supporting shoe which is pivotally attached to the housing and moveable relative to the housing to adjust the depth to which the saw blade extends below the shoe. The motor supporting housing includes a locking arrangement and a depth limiting stop plate moveable relative to the housing, the stop plate having a depth limiting ear and a clasp, the clasp is adapted to lock the stop plate in a wide range of depth limiting positions.

Abstract: An adjustable movable guard mechanism for a saw bar of a chain saw over which an endless chain travels which guard mechanism having a first part which covers at least a part of the forward end of the contoured plate and a second part which forms a ski for guiding the chain saw along a surface to be cut.

Abstract: A metal skin trimming device which cuts an edge of a first metal skin to a net shape that is complementary to the edge of a second metal skin that has been previously attached to a frame, such as the airframe of an aircraft fuselage. A guide carried by the device is adjustable to set the gap that will appear between the edges of the first and second metal skins when they are attached as by riveting to the airframe.

Abstract: A hand-held power tool with a circular-disk-shaped tool mounted on an output shaft which extends normal to a drive shaft has a guiding part which surrounds the tool in an immovable position at its cutting side. The guiding part has a wall arranged for abutting against a workpiece and having a through slot for the tool, and a guiding edge extending parallel to a cutting direction of the tool, and the guiding part being movably guided in direction normal to the wall.

Abstract: A portable circular saw includes a single, one-piece thermoplastic housing having an interface portion which interchangeably mounts either a pivot adjust or vertical adjust subassembly, whereby two types of saws may be constructed using the same field case. One type adjusts saw blade depth of cut by pivotal movement of the housing relative to a reference plane. The other type adjusts saw blade depth of cut by transverse movement of the housing relative to the reference plane. The pivot adjust subassembly includes a one-piece foamed plastic auxiliary handle having an integral handgrip portion, pivot and lower guard bumper. The vertical adjust subassembly includes a one-piece rectangular rail member having an outer perimeter edge surface which guides the movement of a vertical adjust bracket. The pivot handle and the one-piece rail member, respectively, are interchangeably and snugly mounted on a common locating surface formed in the field case interface portion.

Abstract: A blade housing for a cast cutting tool which is used to remove a cast from a patient is disclosed. The housing is polygonal shaped and includes a number of sides through which the circular saw blade of the cast cutting tool projects. The saw blade projects a different distance from each of the sides. The housing engages the body of the cast cutting tool so that the housing can be rotatably adjusted about the shaft mounting the saw blade. By rotating the housing, a different side can be presented to the cutting area. In this manner, the side having the desired distance of projection of the saw blade, or the desired depth of the cut, is easily selected by the user. The housing acts to collect the dust generated by the cutting, and to help clean the dust from the blade a felt covering on the flat sides is provided.