Abstract: A hand tool includes an apparatus housing (2), a drive shaft part (10) which is rotatable in the housing, and toolholder part (18) which is mounted pivotably in the housing, is operatively connected to the drive shaft part and has a securing portion (24) projecting from the housing for the purpose of receiving a file, for example. A shaft journal (30) is secured in the drive shaft part (10) and is eccentrically positioned (R) in relation to the center line (A) of the drive shaft part. The shaft journal (30) supports, on its section (48) outside the drive shaft part, a movement-transmitting member (50') with an outer limit surface (52'). This member is arranged in drive engagement with a recess (54) in the end portion of the toolholder part (18) located inside the apparatus housing (2). In the recess (54) the movement-transmitting member (50') can move transverse to the toolholder part (18), with the outside (52') rolling against adjoining contact surfaces (56, 58) which delimit the recess.

Abstract: A hand power tool for flat machining has a machine housing, a motor accommodated in the machine housing, a toolholder mounted on the housing, a moveable tool carried by the toolholder and formed as a grinding plate with a triangular base surface for receiving a triangular grinding disk, the toolholder having a substantially triangular base surface substantially corresponding to the base surface of the grinding plate, the toolholder having a region against which the grinding plate is supported and on which the grinding plate is mounted on the toolholder so as to be locked on the toolholder and to be removable from the toolholder without an auxiliary tool.

Abstract: A portable power tool comprises a housing, a motor with a driving mechanism for a cylindrical tool for sanding, rasping of filing a workpiece, and means for guiding and supporting the power tool on the workpiece surface. The driving mechanism includes means for rotating and oscillating the output shaft and the tool. The oscillating means includes a wobbling swash plate which is fixed to an intermediate shaft at a slant angle thereto, and follower means engaging the wobbling swash plate. When the intermediate shaft and the swash plate rotate, the follower means reciprocates to oscillate the tool along the output shaft axis.

Abstract: A portable grinder (10; 50; 80) with a grinding tool, wherein a flexible cushion (30; 60; 94) is disposed between an abrasive device, particularly an abrasive disk, and a grinding plate becomes particularly useful for working with contoured workpieces, in that the cushion (30; 60; 94) is embodied as volume-variable, an easily malleable container, which can be sealed gas-tight and can be evacuated and is used for receiving granules or fillers (34; 64; 94) of that type.

Abstract: An abrading tool uses oscillatory motion to achieve abrading, such as for polishing or grinding operations. The abrading tool has a spindle capable of mounting an abrading pad. A motor of the tool has an output shaft and a cam unit on the output shaft which is partially received in a cam follower mounted on the spindle produces the oscillating motion. A self-aligning bearing interconnects the cam unit and cam follower to reduce vibration and noise. The tool has a pneumatic motor and exhaust air from the motor is used to aspirate dust generated by the tool in operation.

Abstract: A sanding apparatus (1) is provided with a platen (2) formed of several layers and with a flat surface to which an abrasive sheet is attached. The platen (2) has a peripheral edge (7) with at least one point (4). A conductive means (18, 20) is provided through the layers of the platen (2) to act as a heat sink adjacent to the point (4) to remove heat from the surface point (4).

Abstract: A powered drywall sander and painter has a proximally located variable speed motor and a motor housing connected to a hollow lower handle. An upper handle telescopes into the interior of the lower handle. The motor rotates a drive shaft within the handles. The upper handle is fastened to an anti-rotation spring with an adjustable sleeve clamp. The upper end of the spring is clamped to a bottom slide to prevent rotational movement therebetween. A top slide having a sanding pad slidably engages the bottom slide. The rotation of the drive shaft is converted to lateral motion of the sanding pad at a distal end of the drive shaft. The sanding pad is free to swivel. The sanding attachment may be interchangeably replaced with a painting attachment. The painting attachment has a paint brush pad with bristles and a paint cup with a centrally located aperture which delivers paint to the paint cup. The painting attachment converts the rotational motion of the drive shaft into rotational motion of the paint brush pad.

Abstract: A sanding apparatus (1) has a sanding platen (2) to which motion is applied. The platen (2) has a flat surface (9) to which an abrasive sheet (22) is applied. The peripheral edge (3) of the platen (2) has a point (4) which can be used for detailed sanding. The surface (9) has a detachable portion (14) adjacent the point (4). The detachable portion (14) can be removed from the remainder of the platen (2) and rotated through 180.degree.. The abrasive sheet (22) can have an area corresponding to the detachable portion (14) of the surface (9) which is removable from the remainder of the abrasive sheet (22) by means of a perforated line (24).

Abstract: This invention pertains to a power sander particularly useful in the trade of painting, specifically designed when painting louvered doors having parallel slats at an angle therein. When painting unpainted louvered doors, a primer must first be applied. To enhance the smoothness and attractiveness of the same, the primer must be sanded and up to this date it could only be done by hand because no appropriate tools where available. The tool of this invention solves the above noted problem. It is a hand held and light weight tool having an elongated blade extending from its forward end. The blade in its lateral extent is somewhat tapered but the thickness remains the same and it conforms to the space between adjacent slats. The mechanism inside the housing of the tool drives the blade in an orbital manner to simulate hand sanding. The blade has abrasive grit thereon and will sand the surfaces of two confronting slats at the same time.

Abstract: A sanding apparatus (1) has a sanding platen (2) to which motion is applied. The platen (2) has a flat surface (9) to which an abrasive sheet (22) is applied. The peripheral edge (3) of the platen (2) has a point (4) which can be used for detailed sanding. The surface (9) has a detachable portion (14) adjacent the point (4). The detachable portion (14) can be removed from the remainder of the platen (2) and rotated through 180.degree.. The abrasive sheet (22) can have an area corresponding to the detachable portion (14) of the surface (9) which is removable from the remainder of the abrasive sheet (22) by means of a perforated line (24).

Abstract: A dust collection system for a power tool which comprises a drive unit, a body, a tool support, and a collection chute. The body defines an inlet opening and a discharge opening, the body having a communicating conduit located within the body which communicates the inlet opening with the discharge opening, and the body supporting the drive unit. The tool support is operably connected to the drive unit and defines a collection aperture, an exit opening which communicates directly with the inlet opening of the body during operational movement of the tool support, and a suction cavity in communication with both the collection aperture and the exit aperture.

Abstract: An abrading tool adaptable to function as a needle scaler or chisel type device. Said abrading tool acts upon a surface to be treated in a efficient and environmentally safe manner, by removal of a work surface coating or fouling film, lead paint, rust, weld spatters, or the like, with low loss and collection of removed material dust and debris for safe filtering and disposal thereof so that operations such as boat hull and auto body cleaning or paint removal, for example, may be carried out without an inordinate hazard of contaminating the ambient work area environment.

Abstract: An in-line sander comprising a sander body which houses a motor coupled to an in-line oscillating mechanism, configured to move a sanding pad in a linear oscillating motion.A corner or detail pad has a substantially flat lower surface and a substantially pointed front portion bounded laterally by two substantially-linear corner-sanding edges having an included angle of less than 90 degrees. A forward end of this substantially pointed front portion of the preferred corner or detail pad protrudes ahead of a front end of the sander body throughout the linear oscillating motion of the pad. The front portion of the preferred corner or detail pad has particular application for sanding into corners of a carcase.A preferred embodiment of the present corner or detail pad has at least one substantially linear side edge which is aligned substantially parallel to the linear oscillating motion of the sander.

Abstract: An electric reciprocating file or polishing member held in a housing. The housing supports a motor for reciprocating an enclosure held within the housing. A spring is held within the enclosure and the file is shaped to be snapped in or pulled out of the spring for use.

Abstract: The present invention provides a new and improved sanding apparatus which includes a flexible tubular member having an outer abrasive surface and a plurality of contour members adapted to be received one-at-a-time within the tubular member. The invention also includes the method of sanding by using the flexible tube and a plurality of the contour members.

Abstract: The present invention relates to a sanding system which can be configured into many highly-versatile configurations. The present sanding system is arranged and configured to alternatively and selectably accept for use a corner or detail pad, a shutter pad, and a wide variety of profiled pads. Such versatility is found in no other sander.

Abstract: A device for cleaning, polishing or sanding having a treatment head that linearly reciprocates a pad or brush with a purely translational motion. The treatment head has a driven shaft with a crank at a free end connected through a link to a sliding block. The sliding motion of the block is confined in rails fixed on opposite sides of the driven shaft. A mechanism is provided for connecting the driven shaft to an output shaft of an electric motor.

Abstract: A power tool for surface treatment comprises a housing, a motor accommodated in the housing, a tool holder, a tool supported in the tool holder and driveable by the motor, the tool having a substantially triangular base surface for receiving a substantially triangular grinding sheet, the tool holder being shell-shaped and having a substantially triangular contour substantially corresponding to the base surface of the tool, and also having an outer edge abutting on the tool.

Abstract: An abrader blade with integral depth control wings. The depth control wings which slide on a portion of the material being abraded to limit the depth of abrasion. The cutting surface of the abrasive surgical device is covered with abrading material. In a preferred embodiment tungsten carbide particles are brazed onto the blade substrate with an equal quantity of cobalt phosphorous braizing alloy. In this preferred embodiment an additional coating is added with a braze alloy specially developed for medical cutting. The carbide particles, the cobalt, the phosphorous and metal phosphides formed during the brazing process are all biocompatable. These blades are especially desirable for abrading bone material into particular shapes for interfacing with prosthesis parts. Several specific blades are disclosed.

Abstract: A compact, hand-held tool for safely deburring the edges of a skate blade. The tool utilizes a pair of resiliently biased deburring surfaces which are movable between an open position and a closed position. The deburring surfaces are resiliently biased in the open position by a biasing means such as a leaf spring. In the open position, any size or shape skate blade can be readily inserted between the deburring surfaces. A user can apply pressure between his/her thumb and fingers to engage the deburring surfaces against the skate blade edges. The width of the skate blade determines the extent of the closed position. In the closed position the tool can be manipulated back and forth along the length of the skate blade to simultaneously deburr both edges.

Abstract: An abrasive plate for use with a power sanding device having an abrasive surface for performing abrading applications. The plate includes at least two rows of protrusions. The protrusions in each row have an orientation substantially the same as the other protrusions in the respective row. The protrusions in each row have a bottom edge portion oriented at an angle of from about 45.degree. to about 135.degree. with respect to the bottom edge portions of the protrusions in each adjacent row. By providing an abrasive plate having protrusions with the above-noted orientations, the forces transmitted through the plate between a surface being treated and a power sander will be substantially balanced.

Abstract: A sanding tool for grinding a workpiece to be worked has a housing in which an electric motor is accommodated and a grinding assembly operatively connected to an output shaft of the electric motor to be swingable to perform a grinding operation, and the grinding assembly comprises a driving plate operatively connected to the output shaft of the electric motor to be swingable, a grinding plate attached to the driving plate to grind the workpiece and a member for operatively connecting the driving plate and the grinding plate such that the grinding plate is changed in an attaching position thereof in a plane parallel to a surface of the workpiece to be ground. First and second engaging members are formed to the grinding plate and the driving plate, respectively, for achieving an engagement therebetween when the grinding plate is pushed against the driving plate, and when the first and second engaging members are engaged, the rotational motion of the grinding plate to the driving plate is restricted.

Abstract: A hand-held machine tool for a workpiece, comprising a casing having first and second hollows therein, an electric motor enclosed in said first hollow and having a driving shaft, a driving mechanism accommodated in said second hollow and being drivingly connected to said driving shaft. The driving mechanism includes a driven shaft and means for rotating and oscillating the driven shaft. A tool holder is provided on the driven shaft for holding a tool having a working surface adapted for sanding, rasping or filing a workpiece, a handle is fixedly connected to the casing and includes electric power conducting means and a switch for energizing and deenergizing the electric motor, and a guide and support for mounting attached to the casing.

Abstract: Combination Shoe Assemblies for Power Straight Line Abrading or Hand Tool having a support rail (10) which either multiples of the grafting file (12) placed end-to-end, or multiples of the sandpaper shoe assembly (14) of common manufacture, placed end-to-end, are attached. The assembled unit is attached to either a power straight line abrading tool (34) or to a handgrip (32) to facilitate use. Multiples of the elongated relief slot (22) as well as both support rail end opening (40) are provided in support rail (10) for necessary expulsion of waste from grafting file (12) while abrading.

Abstract: A hand tool for performing an axially reciprocating operation on a workpiece includes a rigid drive member having a longitudinal axis and a coupling formation for releasably securing one of a plurality of task-specific attachments, the coupling formation configured for engaging the attachments along the axis, and a handle portion operatively connected to said the member for grasping by a user to apply force to a workpiece through the drive member to perform an operation thereon. The drive member may be reciprocated manually or by a motorized mechanism. The coupling portion of the drive member secures the attachment against unwanted axial movement. The attachment exerts a clamping force on the drive member.

Abstract: A grinding mechanism includes a track device horizontally arranged in a base, and a slide slidably engaged on the track device. A grinding material is secured on top of the slide and moved in concert with the slide. A gear is rotatably supported in the base and a roller is eccentrically secured to the gear for engaging with the slide. A motor is disposed in the base for rotating the gear. The slide and the grinding material are moved in a reciprocating action along the track device in order to conduct grinding operations.

Abstract: A carrier is connected to the plunger for reciprocating therewith; the carrier is of inverted U-shape defining a recess open at its bottom. A holder is pivotally mounted to the carrier for swinging movement back and forth between a first position wherein the holder is substantially nested within the recess in the carrier and a second position wherein a substantial portion of the holder extends out of and away from the carrier recess. The holder is also of inverted U-shape defining a cavity for receiving a portion of a contour sanding member. Detent elements on the carrier compress the holder when the latter is in its first position thereby to impart a clamping force to a contour sanding member received within the cavity of the holder. A manually operated ejection member mounted on the tool housing engages the holder for moving the same from its first position to its second position.

Abstract: An oscillating tool for sanding a surface has a body (12) defining an internal cavity (14) and a motor (20) located therein The motor has a motor shaft (22) oriented in parallel with the body. A crank (24) is affixed to the motor which has a crank pin (26) projecting therefrom. A lever arm (34) is pivotably affixed to the body for rotation about a pivot axis generally perpendicular to the motor shaft. The lever arm cooperates with the crank pin to cause the lever arm to cyclically pivot back and forth. A pad support (18) is adapted to receive a work member (19). The planar pad support is affixed to the lever arm at a location spaced apart from the pivot axis and oscillated therewith. The pad support has a substantially 90 degree forward corner (110) formed by a pair or facet edges and a pair of outwardly inclined straight side edges (116, 118).

Abstract: A device for clamping sandpaper to a sanding plate of a vibration sander has a spring-loaded clamping member for holding the sandpaper, the clamping member having a handle part for actuation and being holdable on the sanding plate so as to be swivelably arranged optionally in a clamping position, and disengaged position, the clamping member being formed as a bistable flip-flop mechanism.

Abstract: A sander vacuum housing and pad frame system is provided for generating unique, continuous air flow for dust collection in a sander coupled to a dust collection system, while providing the versatility of a pad frame system. The system has particular application to a pad frame system for supporting sanding pads having varying characteristics, but is not limited to such a system. The system comprises a vacuum housing configured to be coupled to a motorized sanding mechanism of a sander for moving the vacuum housing in a sanding motion. The vacuum housing defines the upper portion of a dust channel. The dust channel in the vacuum housing is configured for connection to a dust collection system. The system further comprises a pad frame configured to be coupled under the vacuum housing for moving the lower surface of an attached frame in a sanding motion. The pad frame comprises a sanding pad for supporting sandpaper.

Abstract: A reciprocating abrading, polisher or buffing tool is disclosed in which a counterweight for a shoe adapted for the mounting of an abrading, polishing or buffing member is driven by the shoe for oppositely directed reciprocating movement. Pairs of guides for supporting the shoe and counterweight for reciprocating movement are mounted on a shroud having halves fixed to each other and to depend from a rim of a body of the sander or polisher, so as to permit selective rotational displacements of the shoe and counterweight relative to the body. In one form of the invention employing suction to withdraw dust from adjacent the shoe, the shroud is employed to positionally locate an L-shaped connecting duct relative to a dust discharge opening in the shoe and a dust collecting duct leading to an aspirator.

Abstract: A grinding head mounting structure including a tubular eccentric base shaft coupled to the driving shaft of the grinding machine by a screw member, an abrasive plate holder base having a bottom coupling portion coupled to the tubular eccentric base shaft by a mandrel and a triangular top platform fixed with an abrasive plate, a swinging member having an arched base movably mounted around a circular block on the machine base of the grinding machine by a split ring and a clamp and a rectangular top coupling portion coupled to a rectangular block on the abrasive plate holder base.

Abstract: An in-line sander comprising a sander body which houses a motor coupled to an in-line oscillating mechanism. The in-line oscillating mechanism is adapted and configured to move a sanding pad in a linear oscillating motion.A preferred pad is a profiled sanding pad coupled to the in-line oscillating mechanism. The profiled sanding pad has, in a plane substantially perpendicular to the linear oscillating motion of the sander, a particular cross sectional profile corresponding to a profile to be formed onto or to be sanded on a workpiece. The cross sectional configuration extends substantially consistently along the length of the pad, and the pad defines a sanding surface having a profile corresponding to the particular cross sectional profile. With such profiled sanding pads, sandpaper secured to the sanding surface of the pads will power sand the profile to be formed onto or to be sanded on a workpiece.

Abstract: A sandpaper pad and a pad support of corresponding shape is provided for use with a detail sander. The sandpaper pad and pad support each has a substantially 90.degree. forward corner formed by a pair of facet edges. A pair of outwardly inclined straight side edges extend rearwardly from the facet edges on opposite sides of the pad center line each being outwardly inclined from the center line 10.degree.-30.degree.. When the straight side edges are in use, the forward corner is inwardly offset, thereby minimizing forward corner wear.

Abstract: A dustless sanding device includes a base with a hollow chamber and a top opening. Bottom and side inlets communicating with the chamber are arranged on a bottom and sides, respectively, of the base. A pair of spaced apart hollow brackets extend upwardly from a rotating member rotatably positioned within the top opening, and communicate with the chamber through the rotating member. A T-shaped hollow air connector has a transverse portion rotatably positioned between the brackets and in communication therewith. A pair of Wing Nuts at the ends of the base secure a porous sanding screen wrapped around the bottom of the base. A vacuum cleaner can be attached to the air connector for extracting sanding dust produced during the sanding process through the sanding screen.

Abstract: A protective guard for use on a pneumatic tool known as a board file which includes a handle assembly and a board assembly that reciprocates back and forth relative to the handle assembly. The board assembly is held together by a nut and bolt located near each end thereof, and the handle assembly consists of a front handle and a rear handle mounted on a housing. A pinch point exists between a forward end of the housing and the forwardmost nut and bolt that holds the board assembly together. The protective guard is mounted on the handle assembly and prevents injury to an operator by preventing his fingers or the side of his hand from inadvertently slipping into this pinch point. A platform on the protective guard covers the forwardmost nut and bolt as the board assembly reciprocates relative to the handle assembly.

Abstract: Apparatus for working the surface of a workpiece that includes a crankshaft having a shank and two offset arms for rotation about the shank. A sanding belt is connected between the arms and is arranged to move through a reciprocal path of travel as the crankshaft is rotated in one direction. The shank is secured in the chuck of a hand-held tool such as a drill which provides motive power to the crankshaft.

Abstract: A sanding apparatus comprises a sanding member having on a lower end thereof a flat sanding plate, and being able to oscillate a drive unit for oscillating the sanding member; a motion converting means having an oscillating arm, connected to a rotating output shaft of the drive unit, for converting a rotational motion of the output shaft to an oscillation motion; and a connecting means for connecting the oscillating arm of the motion converting means at one end thereof with the sanding member. The connecting means permits an adjustment of a securing angle of the sanding member to the oscillating arm of the motion converting means.

Abstract: A removable working tool assembly that can be used with a power driven tool having a drive shaft. The removable working tool assembly includes a drive member which can operably connected to the drive shaft and a support member having a tool surface. One of the drive and support members defines a male connection mechanism while the other one of the members defines a female connection mechanism such that the members can be simply connected and disconnected without the need for tools or any other fastener elements. This allows various support members to be easily changed to facilitate the use of different tool surfaces such as sanders, grinders, scrapers or the like.

Abstract: A portable abrading tool including a cylinder body containing a piston which is reciprocable relative to the body under the control of a valve mechanism, a shoe for carrying sandpaper or another abrading element which is reciprocated in a straight line by the piston but oppositely from the reciprocating movement of the piston, a counterweight which is reciprocated essentially in unison with the piston but oppositely from the shoe, and means yieldingly urging the piston and counterweight in a predetermined axial direction and yieldingly urging the shoe in the opposite direction relative to the body to assure that when the operation of the tool is stopped the moving parts of the tool will automatically return to a position in which the valve mechanism is able to deliver fluid to the piston and cylinder structure in a manner recommencing the reciprocating movement.

Abstract: A power tool, especially a handheld sander, is described, possessing a motor-driven drive shaft that can be alternatively coupled either by means of an oscillation drive to an oscillatory tool drive shaft, or by means of a rotary drive to a rotary tool receptacle coaxial with the oscillatory tool drive shaft. Switching is provided by a switching element, in a first switch position of which the drive shaft is driven in an oscillating manner about the lengthwise axis of the oscillatory tool drive shaft, with a small pivot angle and at high frequency, by means of the oscillation drive, which can consist for example of an eccentric element on the tool drive shaft and a pivot element guided slidingly thereon and fastened on the tool drive shaft. In the second switch position of the switching element, however, the working engagement of the oscillation drive is abolished, and the tool receptacle is rotationally driven by the drive shaft by means of a bevel gear linkage.

Abstract: Providing an oscillating tool for sanding a surface. The tool having a body defining an internal cavity which has a motor located therein. The motor has a motor shaft oriented in parallel alignment with the body. A crank is affixed to the motor which has a crank pin projecting therefrom. A lever arm is pivotably affixed to the body for rotation about a pivot axis generally perpendicular to the motor shaft. A lever arm cooperates with the crank pin to cause the lever arm to cyclically pivot back and forth in response to rotation of a motor shaft. A pad support is adapted to receive a work member. The planar pad support is affixed to the lever arm at a location spaced apart from the pivot axis and oscillates therewith. The pad support is provided with a substantially 90.degree. forward corner formed by a pair of facet edges. A pair of outwardly inclined straight side edges extend rearwardly from the facet edges on opposite sides of the pad center line.

Abstract: A removable mounting bracket with an extended sanding foot for attachment to a vibrating or orbital sander which mounts against the platen of a sander to allow for sanding of inside corners and edges.