Abstract: A pipe cleaning tool for cleaning pipe surfaces is configured for operative engagement with a drill motor. The cleaning tool includes a body having a sidewall extending between a first end and a second end of the body. Cleaning blades located in each of a plurality of slots which extend to respective openings in the sidewall of the body. The cleaning blades are biased to project past the sidewall and thereby contact a pipe surface positioned adjacent the sidewall to clean the pipe surface of oxidation and dirt when the body of the cleaning tool is rotated by the engaged drill motor.

Abstract: A plurality of grind-stone-mounts 12 each having a grind stone 15 on its outer side are attached to a holder 11 of a honing head 10 expandably along a radial direction. Each of the grind-stone-mounts 12 is provided with a support part 13 disposed inside along the radial direction, and a grind part 14 including the grind stone 15 and disposed outside along the radial direction. The grind part 14 is swingably attached to the support part 13 through one or more spring members 16 disposed at intervals along an axial direction of the holder 11.

Abstract: The invention relates to a method of coupling a honing tool (2) to a honing spindle (1), a honing spindle suitable therefor, a honing tool suitable therefor and a honing device comprising a honing spindle and a honing tool. According to the invention, a method of coupling a honing tool to a honing spindle is proposed which has the following steps: inserting the honing tool into the honing spindle into a joining position in which a honing-tool centre axis (24) is oriented coaxially to the honing-spindle centre axis (23); locking the honing tool on the honing spindle in the joining position by actuating an adjusting device (5, 6) assigned to the honing spindle. Furthermore, a honing spindle, a honing tool and a honing device which are suitable for carrying out the method are provided.

Abstract: The invention relates to a pocket-sized knife sharpening device comprising two sharpening bars which are arranged in a housing and which are rotationally mounted. The sharpening bars are guided with the other ends thereof into arc-shaped recesses in the front wall and the rear wall of the housing. They are loaded onto each other by means of springs and cross each other in a knife opening which is formed by slits extending in a parallel manner in relation to each other in the front wall of the rear wall.

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 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 a feed cone by threaded engagement between the feed cone and the lower feed rod section.

Abstract: A lapping tool capable of increasing the accuracy of a lapping operation, extending the life of lapping tool itself, adjusting a lapping diameter, and coping with the lapping operation of various diameters, comprising a lapping tool body having a lapping part on the outer peripheral surface thereof and slits provided in the lapping tool body axially between the tip part and the base part thereof.

Abstract: The invention relates to a knife sharpening machine comprising a plate-type holding device on which two intersecting sharpening bars are rotationally mounted and loaded in relation to each other by means of springs. The sharpening bars, at least in the grinding area, are made of a ceramic material. The plate is provided with a slit which is open on one end and closed on the other, extending as far as the intersection point of the sharpening bars. When pressure is exerted by the knife in the direction of the closed slit end, the sharpening bars are spread apart from each other counter to the force of the springs. Curved guides are provided on both sides of the slit. The ends of the sharpening bars, facing away from the axes of rotation thereof, are guided therein.

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 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: A cutter assembly for installation on the rotary discs of a concrete finishing/stripper machine includes a base member for mounting on the rotary disc of a machine, a cutter member carried on the base member having a plurality of interchangeable cutting edges selectively presentable to a cutting position, a guide channel for constraining the cutter element for movement relative to the base member between first and second positions, and a coil spring for urging the cutter member toward a first of the positions while permitting movement of the cutter element along a path away from the first position and toward a deflected position in response to forces applied to the cutter element caused by obstructions on the surface being finished. The compression or pre-load on the coil spring is adjustable for varying conditions. The entire cutter assembly is readily mountable onto the bottom of the rotating disc and channels thereof by wedges, making set up of the machine quick and easy.