Abstract: A cutter includes a rake face on which a recessed groove extending along a direction of a rotation axis of a rotary holder to be open at a flank face of the cutter are formed. The recessed groove includes a plurality of recessed grooves formed at predetermined intervals along a direction intersecting with the rotation axis. A cutting blade portion extending along a direction intersecting with the rotation axis is provided on a continuous portion of the rake face and the flank face. The cutting blade portion includes a first region made up of an intersecting portion of the rake face and the flank face and a second region made up of a peripheral edge portion of an opening portion of the recessed groove at the flank face.

Abstract: A method for machining long edges of metal workpieces (2), wherein during the machining of the workpiece (2), all the cutting edges (z) are put into engagement with the machining surface (B) over an effective length (l) and having a cutting depth (t), and the removal of the chips is effected in each case over a length which is equivalent to the tooth spacing (as) between the adjacent teeth simultaneously with their motion along the effective length (l).

Abstract: The present disclosure provides a clipping tool for clipping flash from a component e.g. a gas turbine aerofoil body. The clipping tool includes a riser having a support surface for supporting the component and a punch for gripping the component on the support surface such that the flash projects laterally from the riser and the punch. The clipping tool further comprises a tool body having a clipping aperture opening to a channel within the tool body. The channel is defined by a channel wall. The riser and the punch are translatable to shear the projecting flash from the gripped component. At least a portion of the channel wall within the tool body comprises a broaching surface having at least one projection, said projection reducing the cross sectional area of the channel to less than that of the clipping aperture.

Abstract: Embodiments of the present invention comprise a platform attachment for use with a power hand tool which has a housing with a front nose portion with a rotary output shaft extending therefrom, and a tool holding mechanism on the output shaft for holding a tool, the attachment comprising a mounting component having an opening generally aligned with the output shaft through which a tool can extend, a platform component having a base portion and a platform portion, the base portion being adjustably attached to the mounting component, the platform portion having an outer generally planar main surface that is perpendicular to the axis and having an opening through which a tool can extend, and a generally planar secondary surface that extends downwardly from the main surface at a predetermined angle relative to the axis, and a mechanism for releasably locking the platform component on the mounting component.

Abstract: This application is directed to groove milling devices for milling a groove in a component. In one example, a groove milling device includes a milling disk which is rotatable about a rotational axis, wherein the groove milling device comprises a displacement device for moving the milling disk along the rotational axis during the milling process. In an example, the groove milling device may include a control device which actuates the displacement device automatically when a predetermined depth of the milled groove is reached during the milling process. In an example, the groove milling device may include a switch for activating the displacement device by an operator during the milling process. In an example, the energy required for actuating the displacement device may be generated by a generator coupled to a main drive spindle of the groove milling device.

Abstract: A laser weld cutter assembly that includes a right angle driver comprising: a motor contained within a motor housing; a handle assembly; a burr; and a cutting guide assembly comprising a support element attached to the motor housing, a base plate assembly pivotally attached to the support element, a cutting depth adjustment screw engaged with the base plate assembly and the support element, and a guard attached to the base plate assembly; and wherein the operator positions the output shaft assembly perpendicular to the direction of the weld to be cut, and moves the laser weld cutter assembly in a forward direction away from the operator, the rotation of the burr in the clockwise direction undercutting the material to be removed and providing ease in guiding the burr along the laser weld to be removed.

Abstract: A handheld tool for engraving concrete, wood, composite or other surfaces using a motor is described. The surface engraver includes an adjustable depth stop, a cutter assembly, and various adjustable guides for controlling the engraving process. The cutter assembly is mounted on a chassis for moving the engraver over the surface during use, and is provided with a means for evacuating particles and other dust and debris created by the engraving process.

Abstract: A control mechanism for a rotary hand tool of the type having a generally cylindrical housing in which a drive motor is located, the housing having a nose portion from which a motor output shaft extends and a grip portion, the mechanism including an electrical control circuit that controls the application of power to and the operation of the motor, and a light touch switch having at least a first position or state and a second position or state coupled to the electrical control circuit for selectively enabling or disabling the control circuit to turn the motor on and off. The switch is disposed on the nose portion of the rotary hand tool such that an operator can actuate the switch substantially without altering the operator's grip on the tool.

Abstract: Processes for high speed machining of workpiece materials using high performance tools with prolonged tool life and improved surface finish are provided by vibrating the tool and/or the workpiece at a frequency greater than the frequency of shear localization in the primary shear zone or chip segmentation occurring in the absence of tool vibration, with an amplitude sufficient to break up the tool-chip atomic contact, thereby decreasing the tool-chip contact length through decreasing the tool-chip contact time, thereby suppressing accelerated chemical tool wear caused by dissolution of the tool into the workpiece by nanocrystalline grain boundary diffusion and grain boundary sliding mechanisms by preventing shear localization associated with nanocrystalline grain formation in the primary shear zone of the chip, and suppressing oxidation wear of the tool by preventing segmentation of the chip.

Abstract: A power hand tool includes a rotary adjustment knob for adjusting maximum output torque, which has a plurality of radial ribs, radial locating grooves alternatively arranged on the inner sidewall thereof, and a locating member for supporting the rotary adjustment knob in position, which has a mounting base coupled to a part inside the housing of the power hand tool and two locating portions located at two opposite sides of the mounting base. Each of the locating portions has a protrusion engaged with one of the radial locating grooves of the rotary adjustment knob.

Abstract: The present invention is directed to an elevating mechanism, in particular to an elevating mechanism for routers, is configured for easy micro adjustment and coarse or macro adjustment. In an embodiment, a power tool includes a base configured to adjustably receive a motor housing for operating a working tool. A worm drive is pivotally coupled, in an eccentric configuration, to an eccentric lever. The eccentric lever is adjustably coupled to at least one of the housing or the base such that the eccentric lever is operable to cause the worm drive to be positioned into an engaged position with a rack assembly and a released position wherein the worm drive is remote from the rack assembly. The elevating mechanism is operable to permit rotational micro adjustment and macro manual adjustment wherein the worm drive is remote from the rack assembly for permitting coarse adjustment of the motor housing with respect to the base.

Abstract: An apparatus for providing convenient control of a power tool electrical system. A switch assembly includes a first actuator and a second actuator, which is disposed remotely from the switch and first actuator. The second actuator is connected via a coupling device, such that user manipulation of either the first or second actuator is capable of controlling electricity flowing to the motor. Including a second actuator may permit the user to retain greater control over the tool when turning the power on or off. In additional exemplary aspects, a coupling device included in the switch assembly is configured and arranged so as to prevent inadvertent damage to the power tool such as by accidental engagement of a shaft lock while the motor is operating.

Abstract: The present invention is directed to an elevating mechanism, in particular to an elevating mechanism for routers, is configured for easy micro adjustment and coarse or macro adjustment. In an embodiment, a power tool includes a base configured to adjustably receive a motor housing for operating a working tool. A worm drive is pivotally coupled, in an eccentric configuration, to an eccentric lever. The eccentric lever is adjustably coupled to at least one of the housing or the base such that the eccentric lever is operable to cause the worm drive to be positioned into an engaged position with a rack assembly and a released position wherein the worm drive is remote from the rack assembly. The elevating mechanism is operable to permit rotational micro adjustment and macro manual adjustment wherein the worm drive is remote from the rack assembly for permitting coarse adjustment of the motor housing with respect to the base.

Abstract: A planing attachment for a rotary hand tool of the type having a generally cylindrical body with an output shaft at a nose end thereof to which a cutting bit can be attached, the attachment being configured at an attaching end to matingly engage the nose end of the hand tool. The attachment includes a housing having an attaching end portion and a planing tool end portion, wherein the attaching end portion is configured to matingly engage the nose end of the rotary hand tool, and a leading plane and a trailing plane are configured wherein one of the planes is disposed on opposite sides of the cutting bit, and wherein the leading plane is elevated relative to the trailing plane by a distance proportional to the depth of cut made by the cutting bit. The attachment further includes a longitudinal cavity disposed between the leading plane and the trailing plane and is configured to receive the cutting bit therein, a cutting bit support disposed at the planing tool end portion of the attachment.

Abstract: An apparatus for providing convenient control of a power tool electrical system. A switch assembly includes a first actuator and a second actuator, which is disposed remotely from the switch and first actuator. The second actuator is connected via a coupling device, such that user manipulation of either the first or second actuator is capable of controlling electricity flowing to the motor. Including a second actuator may permit the user to retain greater control over the tool when turning the power on or off. In additional exemplary aspects, a coupling device included in the switch assembly is configured and arranged so as to prevent inadvertent damage to the power tool such as by accidental engagement of a shaft lock while the motor is operating.

Abstract: A milling disk for a floor machining appliance has a plurality of mounts for holding interchangeable plate-like milling tips, the milling disk being driven for rotation by the floor machining appliance and being held substantially parallel to the substructure to be machined so that the milling tips may bite into the substructure and remove matter from the surface thereof. The milling tips are constituted by ceramic cutting tips.

Abstract: The present invention is directed to an apparatus for providing convenient control of a power tool electrical system. A switch assembly of the present invention includes a first actuator and a second actuator, which is disposed remotely from the switch and first actuator. The second actuator is connected via a coupling device, such that user manipulation of either the first or second actuator is capable of controlling electricity flowing to the motor. Including a second actuator may permit the user to retain greater control over the tool when turning the power on or off. In additional exemplary aspects, a coupling device included in the switch assembly is configured and arranged so as to prevent inadvertent damage to the power tool such as by accidental engagement of a shaft lock while the motor is operating.

Abstract: An electric power tool including a housing 2 having a motive power 3, and a tool holder 19 coupled to said motive power 3 for receiving a cutting tool, a base plate 4 having an opening 5 through which said cutting tool extends, said base plate 4 being adjustable mounted to said housing by guide arms 6, 7, the position of said cutting tool being varied by adjusting the position of the base plate 4 relative to the housing 2, said tool holder 19 being able to extend through the opening 5 of the base plate 4 for easier access to the tool holder, a slave pin 24 in the housing 2 adapted to engage a recess in the tool holder to lock the tool holder 19 against rotation to enable single-handed removal of a tool from the tool holder 19 from above a tool table, such as a router table.

Abstract: A preferred embodiment of the present invention is directed to a detachable flexible handle for a power hand tool and an attachment system associated with the handle and the tool for releasably attaching either a rigid or the flexible handle to the power hand tool. The system has housing attachment recesses on the tool that receive attachment clips located at opposite end portions of the flexible handle or structure of a rigid handle.

Abstract: A combined rotary hand tool and accessory attachment includes a rotary hand tool having an output shaft and a nose end associated with the shaft. An accessory attachment has a mounting portion configured for releasable attachment to the nose end and an engagement formation provided to the nose end and the mounting portion and configured so that the mounting portion is securable upon the nose end upon an approximate ¼ relative rotation.

Abstract: A planing device for removing weld beads on car sheet metal, which comprises a handle, a cylinder cover and a support frame; the front end of the support frame is mounted with a round milling cutter; the inner side of the round milling cutter is furnished with a guide frame for adjusting the height between the bottom surface of the guide frame and the surface a sheet metal; when the round milling cutter is rotated at a high speed, the weld beads on a car sheet metal will be planed off.

Abstract: First and second guide plates are engaged for linear sliding between them by a channel and rib engagement system. A grooving tool is carried by the plate associated with the rib, and the rib is in axial alignment with the tool head, such that the tool head can lead the rib. When a groove is being cut into a workpiece, the rib can follow the tool head into the cut groove to extend the range of the guide. Ribs of different size can be selected to coordinate with the tool and groove width. Filler strips similarly coordinate the channel width. An alternate or supplemental guide system joins the first plate to a series of accordion style hinged and foldable plates. These plates guide the first plate in linear movement as they fold or unfold.

Abstract: An attachment adapted to be mounted to the nose piece of the rotary tool or to the outer end of a flexible drive extension is disclosed. The attachment encircles the collet and bit at the base end portion of the attachment and has an extension portion that extends along the length of the bit and partially encircles it, providing a planar surface that limits the depth of engagement by the bit during operation. Also the extension has a semi-cylindrical surface portion that contacts a smooth outer end portion of the cutting bit and provides support to the bit so that it cannot be deflected and cut into the extension portion of the attachment. A recess in the back of the attachment is adapted to provide a surface into which the end of a user's thumb may rest for the purpose of applying downward force to the attachment during operation.

Abstract: A metal mold repair tool is provided for leveling the work surface of stamping dies used in metal forming operations. The repair tool includes a pair of guides disposed on opposite lateral sides of a rotary finisher to precisely position the finisher with respect to the work surface. The rotary finisher is preferably driven by a conventional drive motor. The finisher and guides are vertically displaceable relative to each other, such that the position of the finisher relative to the work surface can be adjusted as desired.

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: A saw for simultaneously cutting and beveling including a cut-off saw, a cutting blade, and a beveling blade. The cutting blade cuts simultaneously while the beveling blade bevels. The beveling blade preferably has a head with two faces annularly connected by an annular slanted circumference. The head has at least one notch suitable for accommodating a respective at least one tooth insert interconnected with a respective at least one cartridge. Each cartridge is interconnectable with a respective tooth insert.

Abstract: Improvements made to a router relate to a router chuck and collet mounting system. In a preferred embodiment, the present mounting system comprises mating a top face of a router chuck with the lower surface of an inner race of an armature shaft bearing and mating an inner diameter of the chuck with an outer diameter of the armature shaft to align the chuck with the shaft. Additionally, a cavity through the chuck may be used to accept a router bit shank so that it extends up into a lower end of the shaft in order to permit the shank to extend upward, closer to the armature shaft bearing. This arrangement reduces router bit run-out.

Abstract: The present invention provides a tip dresser for cutting and repairing spot welding electrode tips of a pair of electrodes. The tip dresser includes a rotative member having opposite sides and rotatable around centerline of M--M passing through the opposite sides by a driving means, and cutters respectively provided on the opposite sides of the rotative member for cutting edge surfaces of the electrode tips. The cutters are electrically isolated from one another.

Abstract: The fixed-base router includes a base assembly and a cylindrical motor housing. The base assembly has a tubular member defining a vertically disposed inner cylindrical surface with two longitudinally extending support ribs. The tubular member has a longitudinal slot or opening between a pair of adjacent inner projections. Only the two ribs and the inner projections engage the cylindrical motor housing when the base tubular member is clamped to the cylindrical motor housing. The two support ribs and the slot are substantially equally spaced from each other. Another set of ribs prevents tilt when the tubular member is in an unclamped condition, and a deflection limitation rib is provided to prevent excessive deflection of the base tubular member when the clamping force is too high.

Abstract: A detachable handle is provided on hand-held power tools, such as spiral cutting tools, in which cuts are made by positioning the axis of the cutting tool motor housing perpendicular to a workpiece surface, and moving a cutting tool bit through the workpiece in a direction perpendicular to the axis of the bit to remove material from the workpiece. A gripping surface of the detachable handle is aligned substantially parallel with the axis of the cutting tool housing. The detachable handle allows a cutting tool to be grasped firmly and comfortably with two hands, with one hand grasping the detachable handle and the other hand grasping the housing of the cutting tool to improve cutting accuracy and reduce user fatigue. The cutting tool housing is preferably provided with lugs extending therefrom, whereby the detachable handle may be detachably attached to the cutting tool.

Abstract: A pattern sizing tool for use as a milling device for removing a portion of a surface of a stiff material to leave a desired thickness of material and is particularly useful for milling a hard plastic coping like that produced in a tooth replacement procedure for forming, from that coping, a crown as a replacement tooth in a practice of a "lost wax casting procedure". The tool includes a pair of upper and lower arms that are coupled together at their ends to be scissored and are spring biased apart. The upper arm includes a mount with an arrangement for maintaining a dental rotary grinder thereon that has a chuck for mounting a milling burr.

Abstract: A device and method are provided for reducing a length of an annular core on which a roll is mounted. If the core extends beyond the end of the roll, the roll is unstable when it is stacked. This device and method will trim the length of the core extending beyond the end of the roll to provide a flat face across the entire end of the roll. A stable stacking arrangement will therefore be ensured. The router includes a collar, a router bit and a transparent disk or plate mounted thereon. The router bit will chip away the portion of the core which extends beyond the end of the roll. A vacuum can be operatively attached to the router in order to remove chips formed by the router bit. The collar on the router will keep the bit spaced from the roll to prevent damage to the roll. This collar and the transparent disk or plate will also aid in guiding the router.

Abstract: A high-speed carbide rotary cutting tool designed for use in the carving, cutting and shaping of most materials including, but not limited to, wood, ferrous and non-ferrous metals, bone, stone, plastics and composites. It is designed for use in high-speed, hand-held rotary grinders, such as flex shaft hand pieces, die grinders, and other high-speed stationary grinding tools, primarily using 1/4 inch and 1/8 inch shaft sizes. The tool includes a triangular solid carbide cutting head shaped for cutting different profiles. The cutting head is brazed to a mandrel in such a manner as to render the tool one piece.

Abstract: The present invention is directed to presenting rotative cutting tool of tip dresser. The blade to cut and repair side surface and/or edge surface of welding electrode tip is mounted in the holder with first tapered portion having the same angle of the blade to cut side surface of the electrode tip and second tapered portion having angle a little different from the first tapered angle in a recess of frustconical shape of the holder, said holder being provided with empty space so as to expel every cut powder of electrode tips generated in cutting and repairing operation from the recess of frustconical shape of the holder and tip of the blade has a small roundness or chamfer finishing.

Abstract: The invention relates to a process and a device for dressing truncated conical tips of electrodes in a spot welding gun, press or the like. According to the process, each electrode tip is dressed both on its truncated conical lateral surface on its end surface. In a first machining step, the electrode tip is inserted into a cavity in a first tool for machining the lateral surface or the end surface until the other of these two surfaces comes into contact with an abutment, whereafter the electrode tip in a second machining step is inserted into a cavity in a second tool for machining the end surface of the lateral surface until the surface which has been machined in the first machining steps comes into contact with an abutment. The device according to the invention comprises a motor driven, rotary tool for machining the truncated conical lateral surface and a second motor driven, rotary tool form machining the end surface of the electrode tip.

Abstract: A router attachment for adapting a conventional screw gun for cutting sheets of drywall material includes a housing that is removably securable to the housing of the screw gun, an input shaft rotatably mounted in the housing for coupling with the screwdriver shaft of the screw gun, an output shaft rotatably mounted in the housing for coupling with a router bit and a step-up gear assembly for associating the input and output shafts so that rotation of the input shaft at a first rate of rotation drives rotation of the output shaft at a second, higher rate of rotation.

Abstract: The invention relates to a device for performing a machining movement with at least one rotatable planing knife, comprising: a planing knife holder fixed rotatably in a carrier with a first and a second shaft and a first and a second bearing, wherein at least the first shaft is connected fixedly to the planing knife holder and at least the first shaft is bearing mounted in the carrier; a motor fixed in the carrier; and a drive wheel which is fixed on the first shaft and coupled to the electric motor for driving the planing knife holder, wherein the second shaft is connected fixedly to the carrier and that the second bearing is arranged on the shaft inside the body of the planing knife holder.

Abstract: The invention concerns a method for making the foundation slabs of a paper machine. In the method, reinforcement strands are fitted inside a mold for a base beam. Before filling-concreting of the mold, a base slab provided with a plurality of foundation bolts is installed in connection with the reinforcement strands and preferably on support of said strands. After the slab has been installed as sufficiently planar manner with its face horizontal, the filing-concreting of the base slab is carried out. Upon drying of the concrete cast, the final tightening of the foundation bolts of the base slab is carried out. The ultimate machining of the base slab is carried out on site in the mill space by passing a machining device supported by guides rails which have been adjusted to a horizontal level along faces of the base slab.

Abstract: A rotary stripper tool comprising a housing; a motor supported on the housing; a shaft supported in the housing; a cutter head supported on the shaft; a drive between the motor and the shaft for rotating the cutter head; guides on the shaft; a vacuum supported on the housing for removing dust and shavings from the work area; and hand supports for the tool.

Abstract: A guide is provided for a shaping tool having a substantially cylindrical housing, a rotatable shaping member extending from one end of the housing and a drive motor for rotating the shaping member. The guide includes an elongated hollow member, a shaft telescoped within the hollow member such that a portion of the shaft projects outwardly from one end of the hollow member, and a tip adapted to at least partially surround the shaping member such that the shaping member protrudes a predetermined distance beyond a distal end of the tip member. A first mounting bracket is provided for mounting the hollow member with respect to the housing and for retaining the shaft in a predetermined fixed position with respect to the hollow member.

Abstract: A tool for the advancement of a router cutter along a door or window jamb, with its cutting axis at a compound angle, so as to eliptically undercut a channel complementary to a dart-shaped seal anchor having a rib projecting through a slot formed by a reduced stem of the cutter, the seal characterized by a depressible bulb shaped body lying contiguous to both the jamb and a slamming stop.

Abstract: Dressing device for the welding tips of a spot-welding machine consists of a single tool carried crosswise of a cylindrical opening in a tool holder. The tool holder has opposed slots supporting the tool, with one edge of the slots and therefore one side of the tool at the crosswise centerline of the opening. A cutting edge on that side of the tool and adjacent the tip dresses the tip to provide an essentially flat welding face. The holder and tool are rotated about the tip while the tip is held on an arm of a spot-welding machine. Preferably, when the dressing device is used in a high production situation, the tool is symmetrical and has a pair of outwardly-directed cutting edges on the centerline, simultaneously dresing two tips as they approach the tool from opposite directions.

Abstract: A chamfering machine comprises a casing, a rotating shaft projecting from one end of the casing, a ring-shaped connector enclosing the rotating shaft and having a slit formed parallel to the center axis of the rotating shaft, and also having a downward slope formed on the outer circumference of its lower end portion, a guide base having a ring-shaped boss detachably screwed into the ring-shaped connector, a lock ring detachably screwed onto the ring-shaped connector, the lock ring having an upward slope formed on the inner circumference thereof and slidable on the downward slope of the ring-shaped connector, when the lock ring is rotated and moved in the axial direction of the rotating shaft, to clamp the connector in the center direction of the rotating shaft, to firmly engage the connector with the ring-shaped boss, a cutting chip fixed to the rotating shaft which passes through the ring-shaped boss and having chamfering blades one of which partially projects from the underside of the guide base, and a guid

Abstract: A machine for chamfering the corner of an object comprising a rotating cutter arranged in a machine body and having cutting blades around the outer circumference of that portion of the rotating cutter which is projected from and tilted relative to an underside, a slide guide for slidably supporting the underside of the machine body and having guide planes perpendicular to each other and slidable along the corner of the object and also having a space formed between the planes and into which at least a part of the cutting blades of the rotating cutter is projected, a fixing means for connecting the machine body and the slide guide releasably from each other to adjust the cutting blades projected into the space between the guide planes of slide guide, and a stud means having a first end fixed to one of the machine body and slide guide at a position remote from the rotating cutter and serving to make the machine body and the slide guide swingable to each other when the fixing means is under release.

Abstract: A portable, hand-held machine for stripping hard surfaces such as fibreglass boat hulls which have suffered osmotic deterioration. The machine has a hose fed hydraulic motor for outdoor work and a cutter block fitted with rows of tungsten carbide teeth which exert a planing action. Individually adjustable stops control the depth of cut. Trickle feed water arrests dust and prevents clogging. Stripping rates of about 12 m.sup.2 /hr are sustainable.

Abstract: A cutter and gear assembly for simultaneously dressing a pair of spaced aligned welding electrode tips comprise a housing with a power-rotated gear journaled thereon for rotation upon a first axis and having an axial bore at one end terminating in an annular seating flange and adjacent its other end having an annular groove. A dressing tool cutter assembly is axially nested within the gear, bears against the seating flange and has a plurality of axially elongated arcuate drive tangs nested within corresponding drive grooves within the bore. A snap ring is anchored within the annular groove and retainingly engages the cutter assembly. The cutter assembly includes a pair of symmetrical outwardly opening cutting elements upon its opposite sides, each cutting element including a plurality of angularly related inclined cutting edges having a profile corresponding to the contour of a pair of aligned electrode tips adapted for axial projection into and against the cutting elements upon the first axis.

Abstract: In a spot welding to effect welding overlaid metal plates clamped by two opposite electrodes to which greater current is applied, tips of the electrodes are frustoconically shaped. Rotative tool (1) having recesses (H, J) respectively of reverse frustoconical shapes is provided with edged portions of notched portions formed by notching radially the peripheral wall thereof and through holes provided at the notched portions. Cut powder generated when the electrodes are cut is dropped off downward from the through holes. Tip ends on ceiling surfaces of the electrodes are cut at the same time by edged portion formed at upper edges (3) provided at the diameter of an extended portion (61) formed by extending over perforated bottoms of the recesses.

Abstract: An apparatus is provided for the automatic lapping of welding robot electrodes including means for driving a lapping tool with a rotational movement, reciprocal or not, said tool being mounted on a support mounted for pivoting, with respect to a frame, about an axis parallel to the axis of the electrode or electrodes.

Abstract: A device for "dressing" welding electrode tips is disclosed. The device utilizes an integrally formed air motor, retained within a housing member, to drive a gear train which rotates the welding tip cutters. The air motor is actuated by relative longitudinal movement, in either direction, between the housing member and a carriage member which acts as the base for the device. The longitudinal axis of the air motor is parallel to the direction of travel of the housing member with respect to the carriage member thus eliminating the need for bevel gears in the gear train.

Abstract: A cutting device and method for the precision trimming of a selected portion of the peripheral edge of a cast lens secured on the external surface of a male mold independent of any eccentricity that may exist between the opening defined in the mold and the outer diameter of the mold.