Abstract: A portable power tool includes a first handle extending in an elongated manner and configured to be held by a user, an electric motor, a tool accessory that undergoes orbital and/or rotational motion in response to generation of a rotational driving force by the electric motor, and a battery mounting part configured to detachably attach a battery that serves as a power source for the electric motor. The battery mounting part includes an upward mounting surface on which the battery is mountable, and at least one terminal configured to be electrically connected to the battery when a surface of the battery that includes a connection interface is placed on the mounting surface. The mounting surface is located at a position different from the first handle in the front-rear direction, and is located below an upper side of the first handle in the up-down direction.

Abstract: A sea creature cleaning robot for an intake tunnel for a nuclear power plant includes a frame, cutter assemblies, and walking wheel assemblies; the frame is used for mounting and fixing cutter mounting seats and crawler wheels; the walking wheel assemblies mounted on the frame enable the entire device to normally walk in a tunnel; the cutter assemblies control the height of cutters by means of hydraulic cylinders to make the cutters contact the inner wall of the tunnel, and the hydraulic cylinders drive the saw-toothed cutters to move back and forth to remove sea creatures attached to the inner wall of the tunnel; the cutter assemblies are uniformly distributed on the frame, so as to ensure full coverage of the cleaning range of the cross section of the tunnel. The robot can clean sea creatures in tunnels in place of manual work to significantly improve the cleaning efficiency.

Abstract: To change the direction of water flowing toward a painted surface so as to flow toward the center side of a hood, a water deflecting member is provided that extends toward the center side of the hood while extending toward the painted surface as seen in a state where automatic wet sanding is performed. Thus, water bouncing off the painted surface is less likely to scatter over a wide area of the painted surface, and sanding dust is also less likely to scatter over a wide area of the painted surface. As a result, it is possible to eliminate the need for the troublesome task of wiping off sanding dust remaining on the painted surface, and to achieve a quality finish on the painted surface.

Abstract: A quick clamping device for arranging at least one application tool on a power tool, in particular on an angle grinder, includes at least one output unit for moving the application tool about an output axis of the output unit, and at least one fixing unit having at least one movably mounted fixing element that is mounted, in particular in a non-removable manner, on the output unit, at least for axially fixing the application tool to the output unit. The quick clamping device has at least one securing unit, which has at least one, in particular movably mounted, securing element that is intended to secure the fixing element, which is mounted so as to be movable relative to the output unit at least about the output axis, so as to prevent the fixing element from moving about the output axis.

Abstract: The present invention relates to a sander, and a method for disassembling or installing a working head of the sander. The sander includes: a main body, including a housing, a motor disposed in the housing, a switch mechanism for controlling the motor includes a switch, and a drive component driven by the motor to rotate; and a working head adapted to the drive component. The main body further includes an interlocking mechanism, the interlocking mechanism includes an operation member movably disposed relative to the housing, the operation member is operably shifted between a first state and a second state, when the operation member is in the first state, the interlocking mechanism allows the switch to be triggered, when the switch is in a triggered state, the operation member is prevented from being shifted from the first state to the second state; and when the operation member is in the second state, the interlocking mechanism prevents the switch from being triggered.

Abstract: A portable power tool includes an electromotive drive with an output shaft defining a first axis and having a first end portion and a second opposite end portion. The first end portion is between a mounted machining tool and the second end portion. The electromotive drive is received in a first power tool housing portion and includes a stator having a first stator end defining a first plane and a second stator end defining a second plane, the first plane is located between the first end portion and the second plane. A second power tool housing portion defines a handle gripping portion with a first surface defining a third plane which intersects the output shaft at a location whereat the first plane is between the third plane and the second plane. A second surface portion opposite the first surface portion defines a fourth plane parallel to the third plane.

Abstract: A dust collecting system includes a power tool and a stationary dust collector. The power tool is configured to perform processing operation on a workpiece by driving a tool accessory. The stationary dust collector is configured to be placed separately from the power tool and to collect dust generated by the processing operation. The power tool includes a first motor and a driving mechanism configured to drive the tool accessory by power of the first motor. The dust collector includes a second motor and a fan configured to be rotationally driven by the second motor to generate air flow for collecting dust. The dust collecting system includes a control device configured to control a rotation speed of the second motor according to a driving state of the power tool.

Abstract: A knife sharpener may include a suction cup, a main base, a sharpening set, a first cover, a control handle, and an upper cover. The suction cup is adapted to create vacuum so as to enable the knife sharpener to be attached on a working surface, and a lever extends from a top surface of the suction cup. The main base has different heights of a first portion and a second portion thereon to form a stepped shape. The sharpening set comprises two pieces of sharpening stones which are coupled together to form a sharpening space therebetween. The first cover having appropriate transparency is a board body. The control handle has a second through hole axially penetrating through a central portion thereof, and an abutting block is horizontally extended from the connecting portion to protrude from a rear end of the control handle.

Abstract: A power tool (1), such as a multi-tool, includes: a motor (21) extending in a front-rear direction; a motor housing (2) that houses the motor (21); a head housing (7) held forward of the motor housing (2); and an output shaft (60) protruding downward from the head housing (7). The head housing (7) may be made of a resin. In addition or in the alternative, the head housing (7) includes a lower-head housing case (4) screw fastened to an upper-head housing cover (5). In addition or in the alternative, the motor housing has a two-halved structure in which two half housings (2a, 2b) are screw fastened together.

Abstract: A sander includes a motor, a housing, a battery pack, a baseplate and a driving assembly. The motor includes a motor shaft configured to rotate around a first axis. The housing includes an accommodating portion for accommodating the motor. The battery pack is configured to power the motor. The baseplate includes a baseplate plane for arranging sandpaper. The driving assembly is configured to drive at least the baseplate to move eccentrically. The housing is further provided with a first grip portion, a second grip portion, and a coupling portion. The first grip portion is configured to be gripped by one hand of a user. The second grip portion is configured to be gripped by another hand of the user.

Abstract: A portable cutting device having a cutting tool for cutting a material. The cutting device includes a motor driving the cutting tool and a shroud at least partially enclosing the cutting tool. The shroud defines a debris accumulation chamber for gathering debris created by the cutting tool cutting the material. An impeller is operatively coupled to the motor and driven by the motor to create suction pressure to draw the debris out of the debris accumulation chamber and into a collection bag.

Abstract: A hand-held machine tool (1) for sanding or polishing a workpiece features a housing (2); a motor (4) for rotating a tool shaft (5) of the machine tool about its axis of rotation (6); and a backing pad (3) for releasable attachment of a sanding or polishing element thereto and eccentrically attachable to the tool shaft by an eccentric element (11) to allow the backing pad to perform a working movement. The machine tool implements different working movements of the backing pad attached thereto. The housing includes first magnetic elements (16) facing the backing pad. The backing pad attached to the eccentric element includes second magnetic elements (17) facing the housing. The machine tool implements a first working movement if a magnetic force is active between some first and second magnetic elements and a second working movement if no magnetic force is active between the first and second magnetic elements.

Abstract: An electric power tool has a tool receptacle and a tool housing in which a drive motor for driving the tool receptacle is arranged. The drive motor is switchable on and off via an electric switch. An operating part for indirectly actuating the switch is arranged on the tool housing and extends approximately parallel to a longitudinal axis of the tool housing. The operating part is lever-like and is pivotably arranged on the tool housing. An actuating member of the switch is displaceable approximately parallel to the longitudinal axis by an actuating force that acts on the operating part approximately perpendicularly to the longitudinal axis. The drive motor is switched on by the actuating force acting on the operating part against a restoring force of the switch, and the drive motor is switched off automatically, via the restoring force, when the operating part is released by a user.

Abstract: This invention discloses a wall polisher for building decoration of this invention, comprising a main body, a housing fixedly arranged on one end of the main body, a slot with an opening towards one end disposed in the housing, a handle fixedly set on the top end face of the main body, standing bases up and down symmetrically disposed on one end face of the main body, a pushing cushion which is fixedly connected to one end face of the main body arranged between the two standing bases; wherein the housing is attached on the rough wall surface with the handle held and the push force applied to the pushing cushion; a dust collecting device which is dismountable disposed on the bottom of the housing; wherein the dust produced during polishing is collected by the dust collecting device, which prevents the dust from spreading to pollute the environment.

Abstract: An abrasive disc for use with a sanding tool having a plurality of dust collection holes includes a hole pattern consisting of six openings arranged for substantial alignment with the dust collection holes provided in the sanding tool.

Abstract: A sanding device (1) includes a base plate (3) with opposite sanding and supporting surfaces (5,7); as well as a joint (29) operatively mounted onto the supporting surface (7) of the base plate (3) and rotatable about a first axis of rotation (93). A supporting tube is (69) operatively mounted onto the joint (29) and rotatable with respect to the joint (29) about a second axis of rotation (95).

Abstract: A knife sharpener may comprise a main body, and a suction cup formed on a lower surface thereof is operated by an operating handle. By cooperating the main body with the operating handle and the suction cup, the knife sharpener is configured to easily adhere to a flat surface, which avoids a damage formed on the flat surface during the sharpening process. Moreover, since the knife sharpener comprises various sharpening units, it can be used to sharpen different kinds of knives, even a scissors comprising a pair of blades, which greatly enhances the practicability thereof.

Abstract: An electric grinder with a switched reluctance motor comprises a body, a transmission assembly, a grinding wheel, and a dust-proof assembly. The body includes a first casing and a second casing. The transmission assembly includes a switched reluctance motor disposed in the first casing, a driving module disposed in the second casing, a transmission shaft connected with the switched reluctance motor, and an assemblage seat disposed in the transmission shaft. The assemblage seat includes an assemblage member for assembling the grinding wheel. The dust-proof assembly includes a dust-proof hood disposed in the first casing. Because of being driven by the switched reluctance motor, the electric grinder of the present invention adapts to the cases of phase failure, frequent start-stop operations, and phase inversion.

Abstract: A grinder guard assembly disclosed for a grinder blade includes a rotatable and adjustable indexed grinder guard defining a plurality of indexed and chamfered holes adjacent to an inner ring thereof and an “L” edge configured on an outer circumference thereof to form a guard by retaining grinding debris and preventing outside intervention. The grinder guard assembly also includes an annulus forming a single member with an inside washer and an outside washer and a space there between configured to slidably retain the indexed grinder guard in a common plane with the washers, the annulus configured to axially attach to a hub of the grinder. The grinder guard assembly further includes torque sensitive protrusions mounted from the outside washer, the protrusions configured to lock with the chamfered holes of the indexed grinder guard and retract therefrom based on a torque force applied to the indexed grinder guard relative to the annulus.

Abstract: An exchangeable abrasive mechanism or disc for use on abrasive-mechanism carriers having suction holes includes a plurality of through openings that each have a centroid. The through openings are differentiated into three groups that differ in the radial disposition of the centroids. A first group comprises at least one, but not more than four, through openings of a first cross section. At least two of the through openings of the first group are disposed on a first circumcircle diameter that is substantially identical to one of the hole-circle diameters such that, when the abrasive mechanism is correctly disposed on an abrasive-mechanism carrier, they are in direct alignment with and can overlap, two corresponding suction holes. A second group of through openings of a second, preferably smaller, cross section, comprises at least four through openings that are disposed on a second circumcircle diameter that differs from the first circumcircle diameter.

Abstract: A power tool includes an output shaft defining a rotational axis and a housing from which the output shaft protrudes. The power tool further includes a flange at least partially surrounding the output shaft, a circumferential groove defined between the housing and the flange, and a radially inward-extending slot in the flange. The power tool also includes a rotatable guard having a first radially inward-extending projection and a plurality of apertures positioned radially about the rotational axis. The first radially inward-extending projection is receivable through the radially inward-extending slot in the flange and positioned within the groove. Furthermore, the power tool includes a lever having a detent member, and a biasing member for biasing the lever toward the rotatable guard. The detent member is receivable in one of the plurality of apertures to rotationally lock the rotatable guard relative to the housing.

Abstract: The present invention provides a rechargeable electric tool in which a battery pack detachably mounted to a mounting part, which is formed lower than an opening provided at a housing, wherein a seal member is held in the housing to seal between the opening and the battery pack mounted to the mounting part. A projection projecting toward the opening side is provided at the seal member, and a passing hole that penetrates the projection and the seal member and allows a lead line connecting an electric component accommodated on the opening side in the housing to the battery pack to pass therethrough is formed.

Abstract: A safety guard device includes at least one base body and at least one safety-guard anti-rotation lock that has at least one braking element. The at least one braking element is configured to at least secure the base body against rotation relative to a hand-held power tool by a frictional connection in at least one operating mode of the hand-held power tool. The safety-guard anti-rotation lock comprises at least one self-amplification unit that is configured to increase the braking force between at least one part of the hand-held power tool and the at least one braking element in the braking state.

Abstract: An improved handle arrangement is provided for a power tool, such as a sander. The sander may include: a housing; a primary handle extending in a rearward direction away from an upper rear portion of the housing; a secondary handle positioned at an upper front portion of the housing, where the secondary handle is formed as a knob protruding in a forward direction which is opposite the rearward direction; a platen coupled to a lower portion of the housing; and a motor assembly disposed within the housing. A groove may be formed into an exterior surface of the housing along an intermediate portion of the housing, such that the intermediate portion extends between the primary handle and the secondary handle and the groove extends from a top surface of the housing towards a lower portion portion of the housing along opposing side surfaces of the housing.

Abstract: A grinder includes a body having an annular portion, a wheel cover which is attachable to the annular portion, and a wheel cover holding member which holds the wheel cover. The wheel cover has a cylindrical portion which is attachable to the annular portion. The wheel cover holding member has a slide member and a pressing portion which moves the slide member. The pressing portion switches a state between an engagement state in which the slide member is engaged with the cylindrical portion and a disengagement state in which the slide member is disengaged with the cylindrical portion by moving the slide member. The pressing member moves on a second line which is parallelly offset from a first line passing the center of the annular portion in a predetermined direction.

Abstract: In at least one illustrative embodiment, a grinding tool may comprise a housing including a mount, a shaft extending from the mount along a drive axis, where the shaft is configured to support a grinding wheel for rotation about the drive axis, and a guard coupled to the mount. The guard may comprise a central ring extending around the mount, a shroud extending radially outward from the central ring along a first portion of a circumference of the central ring, and a standoff coupled to a second portion of the circumference of the central ring. The standoff may extend from the central ring along a direction substantially parallel to the drive axis such that the standoff limits rotation of the guard about a tipping axis that is substantially perpendicular to the drive axis.

Abstract: A protective hood rotation prevention device for a power tool, in particular an angle grinder, includes a clamping unit that is configured to clamp a protective hood unit. The clamping unit includes at least one clamping element with a rotation prevention unit that has a rotation prevention element. The device further includes a movement coupling unit that is configured to move the rotation prevention element in at least one operating state depending on a movement of the clamping element. The device also includes a securing unit that is configured, in at least one operating state, to secure the rotation prevention element, in the event of a movement of the clamping element in a loosening direction of the clamping element, at least as far as possible counter to a movement in an uncoupling direction of the rotation prevention element out of a rotation prevention position of the rotation prevention element.

Abstract: A hand held power tool includes: a motor room housing a motor that drives an output shaft; a bevel gear including interconnected pinion and crown gears, wherein the pinion gear is connected to a pinion shaft drivingly connected to the output shaft and the crown gear is drivingly connected to a tool holding shaft; a gear housing that delimits a fluid tight gear space around the bevel gear; a bearing, around the pinion shaft and close to the pinion gear, which delimits a confined space around the pinion shaft and within the gear space; and a fluid tight axial sealing, around the pinion shaft inside the confined space of the gear space, which seals off the gear space from the motor room. At least one fluid conveying opening is arranged to put the confined space of the gear space in fluid contact with the rest of the gear space.

Abstract: A portable cutting device having a cutting tool for cutting a material. The cutting device includes a motor driving the cutting tool and a shroud at least partially enclosing the cutting tool. The shroud defines a debris accumulation chamber for gathering debris created by the cutting tool cutting the material. An impeller is operatively coupled to the motor and driven by the motor to create suction pressure to draw the debris out of the debris accumulation chamber and into a collection bag.

Abstract: An assembly kit for upgrading a device for grinding welding electrodes with a grinding wheel driven by a driving motor with a shaft, which runs in a two-portion housing, wherein at least one opening is provided in the housing for guiding a welding electrode for grinding in a defined position relative to the grinding wheel, further characterized by a further grinding wheel, a spacer ring having a diameter corresponding to the diameter of the housing and a thickness corresponding to the thickness of the grinding wheel, and a centering sleeve with an axial length which is larger than the thickness of the grinding wheel.

Abstract: A hand-held tool has an operation member operably coupled to a lock mechanism. The lock mechanism can lock and unlock the position of a cover that covers at least a part of an end tool. The operation member is positioned on an opposite side to a coupling device that movably couples the cover to a gear head device mounted to a tool body.

Abstract: A system for cleaning an underwater surface includes a cleaning head having a base with a scrubbing pad attached thereto, a hollow handle having leg portions that are connected to openings through the base and an extension tube open toward a rear portion of the cleaning head. A flexible skirt extends perpendicular to the lower surface of the base to surround the sides of the scrubbing pad. A water pump is connected to the extension tube of the handle via a hose to draw water through the base openings to produce a partial vacuum in a space between the base, the skirt and the underwater surface. In one embodiment at least one mechanical filter is disposed downstream of the cleaning head. The system may further include at least one biological and/or chemical filter disposed downstream of the cleaning head.

Abstract: A method for removing from a terrain (T) a buried longitudinal portion (P) of a substantially cylindrical pipe made of a ductile material and of a type suitable for use in oil pipelines, water pipelines, gas pipelines or the like, which method comprises steps of: digging at least an excavation (S1, S2) in the terrain (T), at a longitudinal end (P1, P2) of the buried portion (P) to be removed, such as to make the end accessible; making at least a through-cut in the wall of the portion (P) of pipe to be removed, so as to obtain at least a strip having two opposite longitudinal edges which define a width of the strip that is smaller than a circumference of a wall of the portion (P) of pipe; taking the strip and removing it from the terrain, passing it through the excavation (S1, S2); and obstructing the underground volume that has housed the portion (P) of the pipe (P) and the excavation (S1, S2) with filler material.

Abstract: An improved handle arrangement is provided for a power tool, such as a sander. The sander may include: a housing; a primary handle extending in a rearward direction away from an upper rear portion of the housing; a secondary handle positioned at an upper front portion of the housing, where the secondary handle is formed as a knob protruding in a forward direction which is opposite the rearward direction; a platen coupled to a lower portion of the housing; and a motor assembly disposed within the housing. A groove may be formed into an exterior surface of the housing along an intermediate portion of the housing, such that the intermediate portion extends between the primary handle and the secondary handle and the groove extends from a top surface of the housing towards a lower portion portion of the housing along opposing side surfaces of the housing.

Abstract: A support accessory is disclosed for a hand tool, such as a grinder or polisher. The support accessory is configured to be detachably fastened to the hand tool. The support accessory includes a frame with a longitudinal beam configured to stabilize the hand tool front-to-back when the hand tool is fastened to the support accessory, as well as a trunnion rotatably coupled to the frame and configured to stabilize the hand tool side-to-side when the hand tool is fastened to the support accessory. The support accessory is also configured to support the hand tool in a position that is substantially parallel to a surface of a workpiece during use.

Abstract: The invention discloses a self-leveling sandpaper grinding machine, comprising a base part including a seat, a motor frame fixed to the seat, a motor supported on the motor frame, a decelerator connected to an output shaft of the motor, in which an output shaft of the decelerator penetrates the seat and extends to the other side of the seat; and a grinder part attached to the seat and opposing to the motor, which includes a tray, four barrier strips provided on the tray and forming a quadrangle, U-shaped clip seats provided along diagonals of the quadrangle, elastic pads inserted into sockets formed by the barrier strips and clip seats, sandpaper placed on the elastic pads, U-shaped clips for engaging with the clip seats and fastening the sandpaper together with the clip seats, and a transmission mechanism provided on the tray and for coupling with the output shaft of decelerator.

Abstract: A tool is presented including at least one scraper and a sandblaster configured to mechanically cooperate with the at least one scraper, the sandblaster connected to at least one granular material container for dispensing different granular materials. The tool is a dual-functionality tool. The at least one granular material container includes a plurality of separate and distinct chambers, each chamber including a different granular material.

Abstract: A hand sanding apparatus plate housing is provided. The housing includes a U-shaped top portion defined via a pair of opposing end members and a pair of opposing sidewalls spanning between the members along a sanding direction. The members having a pair of top surfaces extending along the direction and spanning between the sidewalls to provide for hand placement support along the direction. The members and the sidewalls defining a top portion interior space sized for adjacent flat plate housing. The members and the sidewalls defining an upper opening therebetween. The opening providing access to the space. The opening sized for partial plate access to enable manual plate position adjustment through the opening away from the opening. The members configured for partial plate overlay along the direction between the sidewalls to limit plate movement at least perpendicular to the direction past the surfaces.

Abstract: The present invention provides a portable optical fiber end face polisher that has a probe, a shuttle, a cover and a resilient actuator. The probe has a driving shaft holding a pin having two through holes. The shuttle holds the driving shaft, a supplying reel and a spooling reel. The cover guides the driving shaft to rotate axially and draws a cleaning medium from the supplying reel to pass through the through holes across a probing face of the pin to the spooling reel. The resilient actuator is mounted between a stopping base of the cover and the shuttle to recover the relative positions of the shuttle and the cover.

Abstract: A rotary tool includes a drive device, a driven member configured to be rotatably driven by the drive device, a spindle rotatably supported within a housing, an impact attenuation mechanism disposed between the driven member and the spindle and transmitting rotation of the driven member to the spindle while an impact applied to the driven member being attenuated, and a driven member support bearing rotatably supporting the driven member, so that the driven member can rotate relative to the spindle.

Abstract: A handheld machine, comprising a first grip (106) for receiving a first hand of a user of the machine, a second grip (118) for receiving a second hand of the user of the machine, and at least one coupling (114) for connecting the handheld machine to a flexible line (116). The second grip (118) extends in its usage position over the coupling (114) but is displaceable from this position.

Abstract: Devices for removing a coating on a pipe are provided. In one aspect, a device for removing a coating on a pipe includes a sleeve, an arm coupled to the sleeve, and a wheel coupled to the arm. The sleeve includes a wall and an aperture defined through the wall. The wall defines a cavity in the sleeve and the sleeve is adapted to receive the pipe in the cavity. The device also includes a wheel coupled to the arm and adapted to extend through the aperture to engage the coating on the pipe.

Abstract: A durable sander comprises a body with a drive motor, a sanding disk driven by the drive motor to perform sanding movement against the body and at least one oscillation buffer element. The oscillation buffer element includes an upper connection bar fastened to the body, a lower connection bar fastened to the sanding disk and a plurality of buffer portions bridging the upper connection bar and lower connection bar in an integrated manner. Each buffer portion has a first connection end connected to the upper connection bar, a second connection end connected to the lower connection bar and an elastic buffer section interposed between the first connection end and second connection end. The length of the elastic buffer section is greater than the distance between the first connection end and the second connection end.

Abstract: A container for storing at least one object, such as a knife, utensil, and the like, wherein the object has a blade that is occasionally dressed is disclosed. The container includes a housing presenting an object-receiving opening and a blade-dressing assembly configured to provide selective dressing of the blade. The blade-dressing assembly includes a carrier and a dressing component supported on the carrier. The carrier is shiftably supported on the housing so as to move between a storage position in which the dressing surface is incapable of engaging the blade and an operating position in which the dressing surface is engageable by the blade.

Abstract: A flange nut for use in mounting a power tool component onto a rotatable spindle of a power tool. The flange nut includes one or more non-circular apertures into which an end of a shaped tool such as an Allen wrench may be inserted. Torquing or otherwise applying a force to a portion of the shaped tool serves to thread the nut along the spindle either towards the power tool component to secure the power tool component on the spindle or away from the power tool component to allow for removal of the power tool component.

Abstract: A submersible, buoyant, and adaptable motorized tool for scrubbing, buffing, and polishing with a housing with a watertight inner volume, a motor retained within the housing, a rechargeable battery for providing electrical power to the motor, a switch, a base member moved in response to an operation of the motor, and a boat-shaped surface treatment pad releasably retained in relation to the base member. The housing has an upper portion formed as a bulbous knob with an anterior end beyond which an anterior end of the surface treatment pad projects. A heat sink has heat sink arms that have flanges received into apertures in the housing for removing heat from the motor. A liquid-dispensing reservoir removably engages the body portion of the motorized tool.

Abstract: An improved hand-held power tool is provided which can effectively reduce whirling vibration caused by imbalance of a rotating element. The power tool has a grip that is connected to a tool body and designed to be held by a user and a self-synchronous mechanism that reduces whirling vibration caused in the tool body or the grip when the tool bit is driven. The self-synchronous mechanism is of a phase variable type, having a rotating body which serves as a vibrator and is rotationally driven by a driving source different from a driving source for the tool bit. The self-synchronous mechanism is disposed in the tool body or the grip in which whirling vibration is caused, and arranged such that a phase of vibration of the rotating body is automatically tuned to a phase of the whirling vibration, thereby reducing the whirling vibration.

Abstract: A machine tool clamping device for clamping a laminar machining tool to a tool holder that is eccentrically movably mounted includes at least one clamping unit with at least one movably mounted clamping element. The machine tool clamping device also includes at least one slotted link movement unit configured to move the clamping element in at least one operating state so as to generate tensile stress in the laminar machining tool.

Abstract: The present relates to an apparatus and method for blending added material with base material on manufactured components. The apparatus comprises an abrasive device having an abrasive surface for removing exceeding added material, and a guide fixed to the abrasive device. The method determines a trajectory of the abrasive surface with respect to a manufactured component: determines which of a plurality of contact points of the guide shall be in contact with the manufactured component along the trajectory; actuates the abrasive device; and controls position and angle of the abrasive surface en the manufactured component along the trajectory, while keeping the determined contact point in contact with the manufactured component. A force is applied to the abrasive device when the abrasive surface is in contact with the manufactured component and transferred when the guide gets in contact with the base material.

Abstract: A label information degrader for substantially and permanently degrading the legibility of label information on a label attached to a container, said label information degrader including an abrasion component positioned to contact the label of the container during use, an abrasion cleaning component, a powered drive component that rotates the abrasion component and may rotate the abrasion cleaning component, a housing component that positions and provides direct or indirect structural support to the device components, and one or more user protection components, designed to avoid unintended user contact or injury from the label information degrader.