Abstract: An apparatus for metal-cutting machining of wear-affected bit-head-proximal end regions of bit holders of road milling machines encompasses: a rotary actuator having an output member rotating around an actuator rotation axis; at least one material-removing tool, rotatable around a tool rotation axis, which is coupled or couplable to the output member so as to rotate together; a positioning arbor, extending along an arbor axis, which is embodied for introduction into a bit receptacle opening of a bit holder and which comprises an abutment segment, located radially remotely from the arbor axis and facing away from the arbor axis in a direction having a radial component, which is embodied for abutment against an inner wall of the bit receptacle opening. A material-removing region, populated with cutting edges, of the material-removing tool is arranged between the positioning arbor and the output member.

Abstract: An attrition liner machining tool, configured to machine the surface of an attrition liner provided radially outward of a set of a plurality of fan blades in a gas turbine engine. The tool includes at least one rotating machine tool having a connector at a first end and a cutter at a second end. The connector is configured to rigidly connect to a rotating fan blade mount of the gas turbine engine that, in use of the gas turbine engine, supports the fan blades. The cutter is configured to machine the attrition liner. The at least one rotating machine tool is configured such that, when it is connected to said rotating fan blade mount of a gas turbine engine, the cutter is passed across the surface of the attrition liner when said rotating fan blade mount is rotated.

Abstract: A cutting device for cutting a pile, including a body part, for connecting the cutting device to a working machine and a gripper attached to the body part to drive the cutting device around the pile to be cut, the gripping means having at least two opposite gripping parts to obtain a grip from the pile and to release the gripper from the grips. The cutting device includes at least two sawing parts arranged to move to a sawing position and to a secure position, and the cutting device having a saw connected to the sawing parts to perform sawing operation when at least one sawing part is in the sawing position, and the cutting device includes elastic means to adapt to forces, which arises during sawing movement of the a saw. The saw is arranged to move during the sawing movement substantially horizontally to the pile being cut.

Abstract: An electrical power grinder, in particular an eccentric grinder, is disclosed that has a grinding wheel (14) and a grinding-medium holder (23), held on the underside thereof, of soft material. For the sake of reducing wear of the grinding-medium holder (23) at its outer edge and lengthening the service life of the grinding-medium holder, the grinding wheel (14) is provided with an edge guard, which has a guard member (30) encompassing the grinding wheel (14) that protrudes, in the plane of the grinding wheel, past the outer contour of the grinding-medium holder (23) (FIG. 3).

Abstract: A quick release system for an oscillating spindle sander comprises a linearly elongated shaft inserted and housed within a cavity of a sanding drum. A top washer comprising a central aperture and a pair of downwardly projecting prongs aligned about a circumference of the central aperture and insertable into notches formed within the top of the shaft. A pin assembly is insertable into the shaft to impinge the top washer with the sanding drum, thereby compressing an abrasive sanding sleeve placed onto said sanding drum and permitting sanding of an object. The pin assembly may be released and removed from the shaft, permitting removal of the top washer. Upon removal of the top washer, the abrasive sanding sleeve may be removed and disposed of, or inverted so as to use the unused portion of the sanding sleeve, and thus extending the useful life of the sleeve.

Abstract: An automatic abrasive sleeve tightening means and quick release system for an oscillating spindle sander is disclosed, in which a flyweight assembly automatically tightens the abrasive sleeve against the sanding drum of the oscillating spindle sander, upon activation of the sander's motor, without any manual manipulation thereof, and in which a quick release system, comprised of a pin assembly is used to lock down the top washer located atop the sanding drum and is used to release said top washer quickly and efficiently.

Abstract: An electric hand power grinder formed as an eccentric grinder has a grinding plate, a abrasive carrier provided on a lower side of the grinding plate and composed of a soft material, the abrasive carrier being plate-shaped and being fixed on the grinding plate by a surface adhesive means provided on a lower side of the grinding plate and producing a surface adhesive connection with the abrasive carrier.

Abstract: Specific embodiments of the present invention provide a chemical-mechanical planarization apparatus for planarizing an object comprising a shaft having a shaft axis and being connected with a polishing head which is coupled to a polishing pad. The polishing pad has a smaller diameter than the object to be planarized. The shaft is rotatable to spin the polishing head and polishing pad around the shaft axis. An orbit housing has, spaced from an orbital axis, an eccentric hole through which the shaft is rotatably disposed. The orbit housing is rotatable to orbit the shaft, the polishing head, and the polishing pad around the orbital axis. In some embodiments, the object is rotated at an object rotational speed and the polishing pad is rotated around the orbital axis at an orbiting speed. A ratio of the greater of the object rotational speed and the orbiting speed to the lesser of the object rotational speed and the orbiting speed is a non-integer.

Abstract: A method and product for computer disk drives. Glass substrates are provided having low content of residual polishing particles on the surfaces thereof. An exemplary method includes reduction of residual polishing particle content by immersion of the glass substrate in an acid bath containing nitric acid, hydrogen peroxide and an organic acid having a carboxylic acid group.

Abstract: A method and product for computer disk drives. Glass substrates are provided having low content of residual polishing particles on the surfaces thereof. An exemplary method includes reduction of residual polishing particle content by immersion of the glass substrate in an acid bath containing nitric acid, hydrogen peroxide and an organic acid having a carboxylic acid group.

Abstract: An automatic abrasive sleeve tightening means and quick release system for an oscillating spindle sander is disclosed, in which a flyweight assembly automatically tightens the abrasive sleeve against the sanding drum of the oscillating spindle sander, upon activation of the sander's motor, without any manual manipulation thereof, and in which a quick release system, comprised of a pin assembly is used to lock down the top washer located atop the sanding drum and is used to release said top washer quickly and efficiently.

Abstract: An oscillating sander includes a housing and a tool holder which receives a sanding plate and sits via a rotary bearing on a rotating eccentric stem that projects from the housing and is attached flexibly against rotary entrainment on the housing by way of at least one oscillating, element. The oscillating is assembled from two hard-elastic rings, one outer ring and one inner ring, made in particular of plastic and arranged spaced apart from one another and in particular concentrically, which are coupled to one another, with minimally limited radial displaceability with respect to one another and with limited rotatability with respect to one another, via an elastic spacer element, the spacer element being made of soft plastic equipped with openings.

Abstract: A sander is mounted in a cavity in a guide block so as to have an abrasive surface protruding from a bottom surface to a selectively variable extent. The bottom surface of the guide block acts as a depth guide when engaging a flat surface adjacent to a surface to be sanded to establish a step of predetermined height. Either a manual or power sander can be mounted to the guide block. The sander-guide block assembly allows a carrying out process of installing flooring to perfectly match an adjacent floor surface.

Abstract: A fixture for holding a semiconductor die against an abrasive media for the purpose of thinning the die is described. The fixture provides means for aligning the back of the die to a reference plane that is coplanar with the plane of the abrasive and is in contact with the abrasive media during the thinning process.

Abstract: The present invention relates to a method for squaring pipe ends. The method can be used for squaring the ends of a single pipe length or the facing ends of two cut pipe portions of an existing pipe. The method is particularly useful in inserting a new pipe length into an existing pipe line where the line is cut to form two ends to which the pipe length is to be welded.

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 hand grinder, comprising a housing, a motor arranged in the housing, a tool holder with a grinding tool received in the tool holder, a work shaft driven by the motor, two rotary bearings which support the work shaft, a compensating unit arranged on the work shaft for joint rotation therewith between the rotary bearings and provided for compensation of an imbalance produced by the tool holder with the grinding tool during rotation of the work shaft, the compensating unit including different imbalance masses which are offset from one another in an axial direction of the work shaft and are arranged on the work shaft diametrically opposite to one another.

Abstract: A disc streak pattern forming method and apparatus are provided which are capable of not only forming fine streak patterns on a disc in a single step, but also arbitrarily adjusting an angle of intersection of streak patterns in a precise manner to thereby reduce the cost of production facilities and the cost of manufacture as well as to improve the magnetic property and the finishing accuracy of the disc. The disc streak pattern forming apparatus is equipped with a drum 2, a pad rotating member 3, a first motor 5 and a second motor 6. Polishing pads 4 mounted on the pad rotating member 3 are placed in sliding contact with the disc in the form of a magnetic disc 200 with an information storage surface 201 thereof being disposed within a central bore 40 in each polishing pad 4.

Abstract: A weld cleaning machine includes a frame which is secured by a roller chain immediately adjacent to a pipe having a weld to be cleaned. A rotary weld cleaning element is mounted to the frame on an oscillating arm such that the weld cleaning element oscillates along an oscillation axis oriented axially with respect to the pipe. A first motorized drive system is mounted on the frame to rotate the frame circumferentially around the pipe. A second motorized drive system is mounted on the frame to oscillate the weld cleaning element along the oscillation axis. A third motorized drive system is included in the oscillating arm to rotate the weld cleaning element. The weld cleaning machine is controlled remotely via a control cable and a control panel such that the operator can stand some distance from the pipe being cleaned. Preferably the machine automatically performs a programmed sequence of motions to clean a strip of substantial width along the axis of the pipe.

Abstract: A vacuum type portable sander for exhausting dust emitted during the sanding, and housed within a lid-shaped shield which encloses the rotary disc. The shield has a body of hard material provided with an exhaust outlet, and at the bottom edge has a skirt member to contact the work surface during sanding. This skirt member is installed to move freely up and down along the outer periphery of the body. The main body has a resilient member in order to make the skirt member rebound onto the work surface during sanding. The skirt member is installed suspended from a hook on the upper part of the main body. The skirt member of this invention as configured above, can move up and down in response to irregular portions on the work surface and the interior of the shield therefore maintains a good seal to match variations on the work surface. The skirt member of this invention sustains damage due to wear from contact with work surfaces such as walls.

Abstract: A dual action sanding attachment has a drive mechanism, a connecting mechanism and an orbiting element. The driven connecting mechanism is coupled with the drive mechanism which, in turn, is coupled with the orbiting element to drive the orbiting element to sand or buff a desired surface.

Abstract: A polisher is supported on either a frame/arm arrangement or on a vehicle which is guided by track, and is arranged to be energized to polish a predetermined surface of an annular flange or the like, when relative movement is sensed between the polishing element and the surface to be polished. The polishing arrangement can be motor driven so that the polisher can be left to polish the surface in the absence of an operator.