Abstract: An abrasive product with a concave-convex structure includes laminated three planar layers and an abrasive layer with a concave-convex structures located on an upper surface of the three planar layers. The abrasive layer with a concave-convex structure is an array of abrasive blocks, and a groove serving as chips discharging groove is formed between each two adjacent abrasive blocks. The abrasive block includes a binder and abrasive grains distributed in the binder.

Abstract: A manually-operated wire stripper is a device for cutting and removing the electrical insulation from an electrical wire. The device includes a base plate onto which a first mounting plate and a second mounting plate are perpendicularly mounted. A first rod is rotatably mounted through the first mounting plate and the second mounting plate. A cutting assembly is mounted for longitudinal movement to the first rod and may be moved into position such that a blade of the cutting assembly is aligned with a selected slot from a plurality of wire slots traversing through the base plate. An electrical wire may be stripped by inserting the electrical wire through the selected slot, creating a cut in the electrical insulation with the blade, and then manually pulling the electrical wire through the selected slot to remove the electrical insulation along the length of the electrical wire.

Abstract: A mounting/demounting tool for mounting/demounting a tire with respect to the rim of a vehicle wheel, comprising a tool body defining a first end of the tool, an extension from the tool body defining a second end of the tool, and a hook arranged at the extension in the vicinity of the second end. The hook has an inner surface section for gripping and guiding a tire bead during tire demounting, and a first outer surface section for guiding a tire bead during tire mounting. A protrusion extends from between the first outer surface section and a second outer surface section of the hook to the second end.

Abstract: A wrench apparatus is provided for applying torsion to a T-shape cross-section fence post. A wrench head has a lateral opening so that the wrench head can be placed laterally about the T-shape cross-section post. The wrench head includes first, second and third engagement surfaces arranged to simultaneously engage the three flanges of the fence post so that a torsional load can be simultaneously applied to all three flanges of the fence post.

Abstract: The present disclosure provides a method of detecting and preventing grind burn from developing on a gear. The method includes performing acoustic emission testing while the gear is being ground during a grinding operation. The grinding wheel is evaluated during an eddy current test to detect material buildup on the grinding wheel which could cause grind burn. In addition, the method includes collecting swarf from the gear during the grinding operation and inspecting the swarf for an indication of grind burn.

Abstract: A hand tool includes a handle, a press member, a shank body and multiple latch assemblies. The handle is formed with a receiving cavity and a locating hole in communication with the receiving cavity. The press member is movably disposed in the locating hole. The shank body is fitted in the receiving cavity and movable relative to the handle. The shank body is formed with multiple sockets. The latch assemblies are respectively mounted in the sockets. When the shank body is moved, (for example, slid or rotated) relative to the handle to make one of the sockets aligned with the locating hole, the latch assembly latches the shank body with the handle. When pressing the press member, the latch assembly unlatches the shank body from the handle, the shank body is movable relative to the handle.

Abstract: A method for polishing at least one wafer composed of semiconductor material that has a front side and the rear side includes performing at least one first polishing step including simultaneously polishing both front and rear sides of the at least one wafer at a process temperature between an upper polishing plate and a lower polishing plate. Each of the upper polishing and lower polishing plates is covered with a polishing pad having an inner edge and an outer edge, a hardness of at least 80° Shore A, a compressibility of less than 2.5%, and respective upper and lower surfaces that come into contact with the wafer being polished. The upper and lower surfaces form a polishing gap extending from the inner edge to the outer edge. A height of the polishing gap at the inner edge differs linearly from the height of the polishing gap at the outer edge.

Abstract: The present disclosure relates to a method for the manufacture of a workpiece having a corrected gear geometry and/or a modified surface structure, in particular by a hard finishing process, in particular generation grinding or honing. Provision is made in this respect that it is achieved by a direct generation of a wobble movement and/or of an eccentricity of the tool that a modification, in particular a profile modification or profile waviness, and/or a defined periodic flank waviness is generated on the active surface of the workpiece machined therewith.

Abstract: Polishing pads having a polishing surface with continuous protrusions having tapered sidewalls are described. Methods of fabricating polishing pads having a polishing surface with continuous protrusions having tapered sidewalls are also described.

Abstract: An automated polishing system includes a workbench, a transport unit and a polishing unit, wherein the transport unit is provided with a transport surface and a transport drive configured to drive the transport surface to move horizontally, and the polishing unit includes a supporting portion, a holding arm rotatably connected to the supporting portion, a holder connected to the holding arm, a horizontal drive configured to drive the supporting portion to move horizontally, a vertical drive configured to drive the supporting portion to move vertically, a horizontally rotating drive configured to drive the holding arm to rotate in a horizontal direction, a vertically rotating drive configured to drive the holder to rotate in a vertical direction, a polishing shaft, a polishing rotating device configured to drive the polishing shaft, and a polishing drive configured to drive the polishing shaft to move towards the holder for reciprocating motion.

Abstract: A hand-held belt sander includes a head, an arm, a retaining unit, and a positioning unit. The head includes a mounting seat surrounding an axis. The arm has a sleeve segment mounted to the mounting seat. The retaining unit has an annular groove formed in the mounting seat, and multiple protrusions disposed on the sleeve segment and engaging the annular groove. The positioning unit includes multiple engaging grooves formed in the mounting seat, and an engaging member disposed on the sleeve segment. When the engaging member engages one of the engaging grooves, the arm is positioned relative to the head at an operating position. When the engaging member is disengaged from the one of the engaging grooves, the arm is rotatable about the axis relative to the head.

Abstract: A tool for temporarily supporting electronic equipment or panel on an equipment rack is provided. The tool includes an engagement block having a pin for insertion through a mounting aperture of a post of the rack and an upper support surface for supporting or positioning a mounting flange of a faceplate of electronic equipment or panel rested freely thereon. The support surface is spaced from the pin such that, when the pin is inserted into a mounting aperture of the post and the mounting flange of the faceplate is freely rested on the support surface, a mounting aperture extending through the mounting flange is caused to be aligned with a mounting aperture extending through the post of the equipment rack to enable ready permanent connection of the mounting flange to the post with fastening hardware. A method of mounting electronic equipment or panel on an equipment rack is also provided.

Abstract: A method and an apparatus for smart automation of robotic surface finishing of a three-dimensional surface of a work piece is described. A three-dimensional motion path is created along the surface of the work piece. A variable contact force profile is specified along the three-dimensional motion path. The three-dimensional motion path is modified based on the specified variable contact force profile. The surface of the work piece is finished using one or more surface finishing tools along the modified three-dimensional motion path. The surface of the work piece includes at least a flat region and a curved region.

Abstract: A ratchet wrench having a flexible positioning structure includes a drive bar, a rotary head, and a locking button. The drive bar includes a fork arm, an axial hole, and a radial hole communicating with the axial hole. The rotary head is pivotally connected to the fork arm; the rotary head includes a round housing, a plurality of positioning recesses disposed on the round housing, and a pivot axis passing through the rotary head and two ends of the fork arm. The pivot axis is perpendicular to the radial hole. The locking button includes a flexible fastener inserted through the radial hole and a latch bar disposed in the axial hole. The flexible fastener is flexibly movable in association with movement of the latch bar, so that the latch bar is engaged with or released from any of the positioning recesses.

Abstract: The porous polyurethane polishing pad includes a porous matrix having large pores that extend upward from a base surface and open to an upper surface. The large pores are interconnected with small pores. The porous matrix is a blend of two thermoplastic polymers. The first thermoplastic polyurethane has by molecular percent, 45 to 60 adipic acid, 10 to 30 MDI-ethylene glycol and 15 to 35 MDI and an Mn of 40,000 to 60,000 and a Mw of 125,000 to 175,000 and an Mw to Mn ratio of 2.5 to 4 The second thermoplastic polyurethane has by molecular percent, 40 to 50 adipic acid, 20 to 40 adipic acid butane diol, 5 to 20 MDI-ethylene glycol and 5 to 25 MDI and an Mn of 60,000 to 80,000 and a Mw of 125,000 to 175,000 and an Mw to Mn ratio of 1.5 to 3.

Abstract: A lens processing system used for removing a lens blank (98, 110) from an edging block (40). The system includes an elongated collet (22) that engages the mating edging block (40). The block (40) includes an enlarged groove (41) that receives a pair of blades (65, 66) extended upwardly from the floor (75) of the collet (22). Each lens blank (98,110) is formed to include a series of surface markings (191,192) to verify proper functioning of the edging machine that forms a finished lens. Each lens blank also includes a series of circular markings (117,133) arranged in diagonal rows to verify the accurate drilling of bores with the lens blank (98,110).

Abstract: A wiper blade includes blade rubber, a holder body, and a clip. The clip is pivotally connected to the holder body. The clip has an elastic piece and an engagement protrusion. The engagement protrusion engages with an engagement hole provided in a wiper arm. The elastic piece section has a long piece section, a turned-back section, a first bending axis, and a second bending axis. The long piece section extends through a position to a side of the engagement protrusion. The turned-back section extends so as to change the direction of the long piece section in order to connect the front end of the long piece section to the engagement protrusion. The first bending axis and the second bending axis extend so that the engagement protrusion is located between the first bending axis and the second bending axis.

Abstract: The housing of a grinding spindle unit is pivotably mounted by way of a pivot axle on the receiving part of a grinding machine, e.g., on a grinding headstock. The grinding spindle unit bears a grinding wheel which is driven in rotation. The actuation of an adjusting unit extends a pressure pin, which pivots the housing of the grinding spindle unit about the pivot axle and thus slants the grinding wheel. The pivot axle is in this case formed as a film hinge through a zone of targeted elastic material deformation. A tensile spring device brings about constant contact between the pressure pin and the receiving part.

Abstract: A knife includes a knife body having two liners and a blade positioned between the two liners. The knife further includes two scales, each scale being removably coupled to one of the two liners. Each scale is configured for use as a tool separate from the knife body when removed from the knife body. A bottle opener may be formed in the knife body.

Abstract: A saw has a system for sensing the torque on a cutting blade to signal when the blade begins to cut material. The saw has a drive belt extending between a driven wheel and a drive wheel and a belt tensioner that engages a side of the belt and maintains tension in the belt. The belt tensioner is movable to maintain the tension in the belt. A control system calculates the movement of the belt tensioner. The saw has a system for determining the size of the sacrificial blade. A through beam photoelectric emitter and receiver pair are positioned on opposite sides of the blade such that a largest cutting blade is moved above the beam regardless of a horizontal position of the cutting blade and sensor senses a vertical position of the axis of the blade. The sensor senses the vertical position of the blade axis when the blade is moved above the beam.