Abstract: A downhole casing cutting and removal assembly (10) and method of use thereof, the assembly comprising a work string (23) with a cutting mechanism (18) and plurality of resettable anchor mechanisms (20B-20D). The arrangement allows a test pull to be made following the cut by an anchor mechanism closer to the upper end of the cut casing section than an anchor mechanism (20B-20D) located close to the cutting mechanism. Time is thus saved by not having to raise and lower a single anchor mechanism (20B-20D) between the cutting position and the upper end of the cut casing section to undertake a test pull.

Abstract: An axial force measurement apparatus measuring an axial force of a bolt member by measuring a clamping force, of a nut member threaded onto the bolt member, which is applied to fasten a structure, includes: a sensor that applies vibration to the structure through one side of the tightened nut member and obtains, on an opposite side of the nut member, a signal by the vibration that propagates through the structure and passes through the nut member; and an analyzer that analyzes the signal received from the sensor and determines the axial force of the bolt member using a difference in propagation velocity of the signal by the vibration according to the clamping force of the nut member.

Abstract: An abrasive rotary tool includes a tool shank a flexible planar section positioned opposite the tool shank. The flexible planar section forms a first abrasive external surface on a first side of the flexible planar section and a second abrasive external surface on a second side of the flexible planar section. The flexible planar section facilitates abrading, corners of a workpiece across multiple angles relative to the axis of rotation for the rotary tool through bending of the flexible planar section when the abrasive external surfaces are applied to a corner of the workpiece.

Abstract: A low pressure, low speed concrete polishing apparatus and method of cleaning and polishing a floor a polishing pad and interchangeable polymer strips. The interchangeable polymer strips are slideably received within the housing of the pad. The polymer strips have an abrasive material embedded therein which collectively work to polish the floor while cleaning the floor during normal speed floor cleaning conditions.

Abstract: The invention concerns a rotating sanding/grinding/polishing tool (1) provided with a number of undercut mounting grooves (5) for mounting one or more displaceable grinding elements (4), at which is provided an annular groove (8) in a plane largely perpendicularly to the rotary axis of the tool, and a ring-shaped securing means (9) provided in the groove and a resilient means (11) along the periphery of the rotating tool (1), at which the securing means (9) has one side bearing against the resilient means (11) and another side bearing against part of the grinding elements (4).

Abstract: To provide a linear abrasive brush member, in which filament parts are hardly broken, a substrate part is excellent in deformability, and also, abrasion ability is excellent. A linear abrasive brush member comprising: an embedded core material (9); a rod-shaped substrate part (7) having opposite long-narrow upper and bottom faces; and a plurality of filament parts (8) present on the upper surface along the longitudinal direction; and the substrate part and the filament parts being integrally molded from a resin composition.

Abstract: A tool for removing material from a surface includes a body defining a longitudinal bore and an opening connecting an outer surface of the body to the longitudinal bore. A cutting element comprising a cutting surface is dimensioned to be at least partially received by the opening. The cutting surface is configured to translate from a first position to a second position in response to a centrifugal force. In the second position the cutting surface is extended outwardly through the opening, beyond the outer surface of the body. In one example, the tool may be used to remove material, such as oxidation, from the inner walls of a cylindrical article selected from a pipe and a tube.

Abstract: A tool for removing material from a surface includes a body defining a longitudinal bore and an opening connecting an outer surface of the body to the longitudinal bore. A cutting element comprising a cutting surface is dimensioned to be at least partially received by the opening. The cutting surface is configured to translate from a first position to a second position in response to a centrifugal force. In the second position the cutting surface is extended outwardly through the opening, beyond the outer surface of the body. In one example, the tool may be used to remove material, such as oxidation, from the inner walls of a cylindrical article selected from a pipe and a tube.

Abstract: A method of manufacturing a glass substrate for a magnetic disk is provided, by which polishing accuracy on an inner circumferential end face of a glass substrate is improved, and a thermal asperity trouble can be avoided.

Abstract: A tool for removing material from a surface includes a body defining a longitudinal bore and an opening connecting an outer surface of the body to the longitudinal bore. A cutting element comprising a cutting surface is dimensioned to be at least partially received by the opening. The cutting surface is configured to translate from a first position to a second position in response to a centrifugal force. In the second position the cutting surface is extended outwardly through the opening, beyond the outer surface of the body. In one example, the tool may be used to remove material, such as oxidation, from the inner walls of a cylindrical article selected from a pipe and a tube.

Abstract: The invention concerns a sanding element with a succession of overlapping lamellas (3, 4) comprising sanding grains (9), characterized in that these lamellas (3, 4) are alternately formed of sanding lamellas (3) and compressible lamellas (4), whereby each sanding lamella (3) rests on a compressible lamella (4).

Abstract: The invention concerns a sanding element with a succession of overlapping lamellas (3, 4) containing sanding grains (9), characterized in that these lamellas (3, 4) are alternately formed of sanding lamellas (3) and compressible lamellas (4), whereby each sanding lamella (3) rests on a compressible lamella (4).

Abstract: A fan-type grinding wheel which can be driven in rotation in a direction of rotation comprises, on an annular rim region of a support plate, grinding blades which are configured in the form of a triangle. The outer edge of each grinding blade defines a portion of an outer rim of a grinding blade package. The inner edge extends from an inner rim of the grinding blade package to the outer rim. The rear edge is exposed and extends in a leading manner from the inner rim to the outer rim of the grinding blade package—with respect to a direction of rotation.

Abstract: Disclosed herein is a block-texture-modifying apparatus for modifying the surface texture of blocks. The apparatus comprises a support for supporting blocks thereon, a multi-station block-texture modifier for engaging blocks on the support, and a translational displacer for imparting translational displacement between blocks on the support and the multi-station block-texture-modifier. The multi-station block-texture modifier comprises a pressure-applying station for applying a sustained pressure to blocks engaged thereby, and an impacting station for applying interrupted impact on blocks engaged thereby. The multi-station block-texture modifier modifies the surface texture of blocks on said support during said translational displacement. Also disclosed herein is a method for modifying the surface texture of blocks.

Abstract: A grinder disc, insert holder and insert assembly including a grinder disc with a plurality of grinder insert holders for grinder inserts for grinding and the like. The assembly includes a grinder insert holder having a holder case with a hollow interior an open end portion and a closed end portion with and an end wall, and a resilient pad sized and shaped to be located in the hollow interior of the case adjacent to the end wall. The assembly includes a grinder insert. The insert is sized and shaped to permit it to slide into the holder case. A plurality of grinder insert holders are attached in a symmetric pattern to the outer edge portion of the disc with the open end portions facing in the direction of rotation of the disc.

Abstract: The invention concerns a cylindric drum for a sanding/polishing tool which in its drum surface is provided with a number of undercut axial grooves for mounting one or more axially displaceable sanding elements, where an annular groove has been provided either in the drum surface or a shaft perpendicularly to the rotational axis of the cylindric drum and along the periphery of either the surface of the drum or the surface of the shaft, that a stop means has been arranged for accommodation in the annular groove in an axially fixed position, where at least a part of the stop means abuts on end faces of the moldings of the sanding elements mounted in the axial undercut grooves.

Abstract: An amlodipine maleate pharmaceutical composition is provided with good stability when formulated with a pH within the range of 5.5 to 7, when measured as a 20 wt % aqueous slurry. The stability can also be aided by making the pharmaceutical composition from amlodipine maleate particles having an average particle size of greater than 20 microns, preferably greater than 100 microns.

Abstract: The invention relates to a plated grinding tool which is symmetrically configured around an axis of rotation. Said plated grinding tool comprises a plurality of grinding plates arranged on the periphery and/or on the faces, and comprises a support body on which said grinding plates are fixed. The plated grinding tool also comprises a device for connecting the plated grinding tool to a drive device. The support body has at least one rotationally symmetric lateral surface on which the grinding plates are at least partially fixed. According to the invention, the support body comprises at least one central element which is configured as a disc and which extends in an essentially radial manner in relation to the axis of rotation. In addition, the device for connecting the plated grinding tool to a drive device has a locating face, said face being formed by the disc, which is provided for connecting the plated grinding tool to a drive device.

Abstract: A tube cleaning device having a pair of jaws pivotally mounted on a frame and having opposed abrading surfaces defining an abrasion cavity, a mandrel fixed to the frame and extending axially thru the cavity for slidably receiving a tube end to be cleaned, spring structure forcing the abrading surfaces toward each other and laterally toward the mandrel, and a rotator knob on the frame for rotating the device in either direction around a tube end positioned on the mandrel.

Abstract: The application describes a honing tool for use with a CNC machine. A fluid actuator provides the mechanism for causing radial adjustment of abrasive elements. The actuator consists of a piston and cylinder assembly mounted within the tool and powered by the through the tool cooling fluid of the CNC machine. Actuation motion is driven by a helical drive on the piston which imparts rotary motion to a feed rod. Upper and lower feed rod sections are connected through a clutch. Axial movement is imparted to feed cone by threaded engagement between feed cone and lower feed rod.

Abstract: A rotary honing tool includes a rotatable body member mounted on a shaft and having attached rotatable honing arms as well as a band or collar fitted about the body. The collar is engaged with the body by means of a lug on the collar fitted into a channel on the outside face of the cylindrical body. The collar may be rotatably displaced to control radial extention of the honing arms.

Abstract: An assembly of buff or brush wheels with or without spacers is stacked, compressed, and held together as an integrated unit to form an assembly of such wheels having a specified face width which then may be mounted as a unit on a machine arbor or drive shaft. The assembly is held together in such a manner that the ganged stack is yieldable and may be further compressed when assembled on the machine arbor. The assembly may also be slightly expanded to obtain a better fit on the machine. The wheel assembly in one form is held at the desired face width by adjustable ties extending through paired holes in core plates in the wheels. In another embodiment carriage bolts extending through the core plates form adjustable screw clamps.

Abstract: The present invention is directed to improved apparatus' for dislodging and abrading cryolite encrustations from carbon anodes spent during aluminum smelting. Both the plow blade and flailing elements of the present invention are constructed and arranged to substantially conform to the shape of the spent carbon butts to facilitate rapid and efficient cleaning of the spent carbon anodes' surfaces. Systems and methods employing the substantially V-shaped plow blade extension and dual directional rotating flailing assemblies are also disclosed.

Abstract: The invention concerns a device for deburring workpieces, in particular moulded parts and castings made of plastics, rubber or the like, said device comprising a rotatable shank (1) and linear tool elements (5, 6) which, in the axial direction, extend coaxially to the shank axis, are secured relative to the shank (1) and, as the latter rotates, can bulge out radially under the effect of centrifugal force. The device is designed such that an upper and a lower carrier (2, 3) are secured on the shank (1). The tool elements (5, 6) consist of individual threads or thread bundles whose ends are secured in the upper and lower carriers, a spring arrangement (7) being disposed concentrically with the shank (1) between the upper and lower carriers (2, 3).

Abstract: The pipe cleaner attachment includes a housing, a shuttle, and a shuttle guide. The housing has a closed end, an open end, a key and two brush levers and brush pad guide slots. The shuttle guide is a rod clamped in a bore through the closed end of the housing. The end of the rod outside the housing is clamped in a drill chuck for use. The shuttle is slideably mounted in the housing on the shuttle guide and engages the housing key, A pair of brush levers are pivotally mounted in the brush guide slots. A brush pad is attached to an end of each brush lever. Burnishing grooves are provided in the shuttle for burnishing the open ends of pipes with two different diameters. Upon insertion of a pipe into the housing, the pipe end is reamed, the burnishing grooves burnish the pipe end, the shuttle is moved toward the closed end and the brush pads clean the outside surfaces of the pipe.

Abstract: A flap disc for surface finishing a V-shaped work piece. The disc includes a backing plate and a plurality of abrasive flaps that are mounted on first and second sides of the backing plate. The abrasive flaps are radially disposed on the backing plate, each abrasive flap having an outer surface and an inner surface. A portion of the inner surface is adhesively attached to the backing plate. A second portion of the inner surface is disposed on the outer surface of an adjacent abrasive flap in an overlapping fashion so as to position the outer surface of the abrasive flap at an angle to the backing plate. The outer surfaces of the abrasive flaps on the first and second sides of the backing plate face in the same circumferential direction and taper radially toward one another to define a substantially V-shaped finishing surface.

Abstract: A rotary bristle tool having a backing with a plurality of bristles extending therefrom. The bristles have a cross section and preferential orientation to control deflection during rotation of the tool. One embodiment is well suited for refining the inside surface of two-way and three-way corners. The backing and bristles are preferably integrally molded. The rotary bristle tool is molded from a moldable polymer such a thermoset polymer, thermoplastic polymer, or thermoplastic elastomer. The rotary bristle tool can include an attachment member molded integrally with the backing. Also disclosed is a method of making a rotary bristle tool and a method of refining a workpiece surface with a rotary bristle tool.

Abstract: A pipeline and tubular structure renovation apparatus facilitates rapid and economical removal of protrusions into the interior of pipelines and other tubular structures, particularly gas pipelines having excess weld or devices such as nipples, etc. The apparatus consists of a generally cylindrical carriage mounted on wheels or skids which substantially center the apparatus within a pipeline; a clamping device to clamp the carriage in position; and a centrifugal tool head which may perform grinding, cleaning, polishing and other operations. Grinding may be accomplished in both radial and plunge cutting modes. The apparatus is robust and of simple and economical construction Weld removal speed is considerably faster than that achieved by conventional precision grinding tools.

Abstract: A peening particle support having a plurality of asymmetrically arranged peening particles positioned to minimize tracking on a workpiece. The peening particles are attached to an exposed surface of the peening particle support. The peening particle arrangement includes three or less peening particles with substantially the same non-zero radial distance from a center of the exposed surface. The peening particles are preferably arranged in at least one linear array of peening particles.

Abstract: A surface preparation tool for peening and removing a coating from a work surface, the tool including a rotating hub which retains a plurality of peening flaps with peening particles attached at one end. The peening particles impact the work surface as the hub rotates and cause the coating to fragment and dislodge from the work surface. The tool includes a shroud assembly with a funnel-shaped evacuation port attached thereto. The shroud is positioned above the work surface such that a gap is formed which permits air to enter into the shroud. A sealing structure is affixed to the rear wall of the shroud to block air flow into the shroud below the funnel. When a vacuum is applied to the funnel, the narrow gap formed between the shroud and the work surface accelerates ambient air flow into the shroud while preventing dislodged particles from escaping. The rear wall seal prevents air from flowing into the shroud below the funnel which would oppose the direction of flow from the other three sides into the funnel.

Abstract: An abrasive wheel is partially defined by a support member and by a plurality of abrasive flaps on such member. A hole is disposed centrally in the support member to receive a mandrel for rotating the wheel. The support member has at its radial periphery an annular surface with a constant radius at progressive positions in the annular direction. The flaps are fixedly supported (as by epoxy) on the annular surface in a partially overlapping relationship between successive pairs of flaps. Each of the flaps has abrasive particles on one of its surfaces. Each of the flaps is disposed on the annular surface of the support member with the abrasive particles facing outwardly from such support surface. Each of the flaps defines an acute angle with the annular surface and extends at its opposite axial ends beyond the axial positions of support by such support surface.

Abstract: A peening particle support having a plurality of asymmetrically arranged peening particles positioned to minimize tracking on a workpiece. The peening particles are attached to an exposed surface of the peening particle support. The peening particle arrangement includes three or less peening particles with substantially the same non-zero radial distance from a center of the exposed surface. The peening particles are preferably arranged in at least one linear array of peening particles.

Abstract: A fastener for use with a rotary peening flap to secure at least two overlapping strap portions together. The fastener includes a shaft for extending through apertures in the overlapping strap portions, a head adjoining one end of the shaft, and an elastic washer at the other end of the shaft. The head of the fastener forms an included edge angle of greater than approximately 90.degree. at the intersection of the bottom and side surfaces of the head. The fastener maintains the overlapping portions of the strap under compression to prevent peening debris form becoming lodged between the fastener and the strap and between the overlapping portions of the strap and to prevent slippage between the strap and the fastener and between the strap portions. The elastic washer has sufficient elasticity to maintain compression as the strap portions become substantially thinner over prolonged use. A peening flap incorporating the fastener is also disclosed, as is a hub assembly incorporating the peening flap and fastener.

Abstract: A device at cassettes (3) for spring members (4) for a machine proposed i.e. for removing of rubber rests and ice from runways for aircrafts, at which the cassettes (3) are arranged around the periphery on a rotatable roller (1) and extending mainly in the longitudinal direction of the roller (1) and including units (11) of spring members (4), such as radially projecting bristles, the ends of which are brought into contact with the ground, e.g. a runway, at the rotation of the roller (1). Each cassette (3) includes a longish bar (9), which is arranged in facing grooves (8) in brackets (2) extending along the length of the roller (1) and showing passages (8.1) for e.g. removed material, other dusts and water arranged between each groove (8) and the bar (9) extending in the grooves (8).