Abstract: A clamping device for fixing plastic molded parts during welding is proposed, comprising a flange-like fastening part for fastening on a plastics welding device, the fastening part having at least one first annular recess for receiving a clamping element and the fastening part having at least one second recess for receiving spring elements acting radially on the clamping element, the clamping element having at least one projection on an inner surface which is arranged opposite the outer surface of the plastic molded part. The clamping element allows good fixing of the plastic molded parts in a very confined space.

Abstract: Tooling and process for installing a split type, circular snap ring into a slotted or grooved wrist pin journal of a piston utilizing an installation sleeve member with an internal bore therethrough which is positioned against the piston so that its bore is aligned with the piston's wrist pin journal. The bore in the installation sleeve including a tapered passage to progressively radially inwardly constrict the snap ring as it moves axially through the installation sleeve. An elongated plunger assembly is moved axially to engage the snap ring and move it through the bore of the installation sleeve. The plunger assembly is sized to permit it to move through the entire extent of the tapered portion and into the piston's journal so that in turn the snap ring is moved into the wrist pin journal and finally into alignment with a retainer slot or groove into which the snap ring can radially expand outwardly into a seated position.

Abstract: This device is a computer numerically controlled (CNC) machine tool such as an edge grinding apparatus. More specifically, the device is a CNC apparatus for processing blanks such as a glass sheet. The device uses a sensor to program the path of the grinding wheel. The device analyzes the position of all like-workpieces placed in the machine and creates offset parameters to accurately process each workpiece in accordance with the initial preprogrammed path.

Abstract: An eccentric plate grinder has a cylindrical housing having a lower region with an end-side edge, a rotatable grinding plate associated with a lower region, a ring-shaped brake positioned between the grinding plate and the edge, the grinding mechanism having an elastic lip with which it is supported on the grinding plate and applies a braking force to the grinding plate, the brake also tightly closing a suction chamber inside the housing in a region of the grinding plate from outside, the brakes having throughgoing openings for ventilating the suction chamber, and further comprising valve-shaped flaps operative for releasing and closing the throughgoing openings.

Abstract: A chopper drum includes a plurality of knives distributed along its width and about its circumference. A grinding device is provided for automatically sharpening the knives, with a grinding stone of the grinding device having its movement automatically controlled by a microprocessor, which receives signals from an actual shape sensor and compares it with a stored desired shape and generates control signals, such that it shapes the profile of the chopper drum to at least approximate the desired shape.

Abstract: A clamping stand having a workpiece tray that includes a planar surface that is adapted to be clamped in the tray. The planar surface includes two spaced-apart parallel surfaces joined together via a V-shaped channel. One of the surface includes a notch which is adapted to receive an arm of the clamping member to clamp the workpiece either in the V-shaped channel or on top of the planar surface.

Abstract: An abrasive sanding disk and sanding pad combination for use in sanding drywall surfaces with a motorized drywall sander with a sanding head, the abrasive sanding disk and sanding pad combination comprising an abrasive sanding disk comprising a flat, circular substrate panel wherein the substrate panel is devoid of a central aperture, wherein the substrate panel has a first face comprising a sanding head engaging face for facing a sanding head of a drywall sander and a second face comprising an abrasive face for abrading a given surface; and a sanding pad for being interposed between the abrasive sanding disk and a sanding head of a drywall sander wherein the sanding pad comprises a round disk of resiliently compressible material with a concentric central aperture, an abrasive disk engaging face for engaging the abrasive sanding disk, and a sanding head engaging face for engaging a sanding head of a drywall sander.

Abstract: In order to properly press-fit or thrust a cylindrical coiled body into a cylindrical case, a fitting device is provided. The fitting device comprises a guide member formed with a conical bore of which cross section gradually reduces with increase of a distance from a top of the bore toward a bottom of the same. The cross section of the bottom of the bore is slightly smaller than that of the coiled body. The guide member is coaxially put on the cylindrical case. The fitting device further comprises a pressing member which, when actuated, presses down the cylindrical coiled body raised in the bore thereby to thrust the raised coiled body into the cylindrical case through the bottom of the bore. The pressing member includes a center base plate, two side plates positioned on both sides of the center base plate, a guide structure by which the side plates are radially movable in opposite directions with respect to the center base plate, and biasing members for biasing the side plates radially outward.

Abstract: In a lens periphery edge processing apparatus comprising lens rotating shafts 16, 17 for putting and holding an objective lens therebetween, a carriage 15 rotatable around a pivot, and a grindstone rotating shaft 9 provided with a grindstone 5 for grinding the objective lens L, the lens rotating shaft 17 is provided with a reference globe 70 having a predetermined radius.

Abstract: A simple, compact, hands free device that allows a single operator to vertically lift and hold construction panels to a desired height for securing to a wall surface. Downward foot pressure on one end of a slotted lever arm causes a panel lifting surface on the other end of the lever arm to rise. This lever arm is supported by a base support which also supports a locking arm. Once the desired height is reached, the device locks the panel into position. The operator is then free to move about, adjust, and finally secure the panel. Once the panel is secured, the locking arm is released by simple forward pressure. With the aid of a foot strap, the device can then be transported to the next panel ready for lifting. This device eliminates the use of hands, bending, or stooping during the process of lifting construction panels.

Abstract: The invention is a clamping device attaching to a bar clamp or pipe clamp which, instead of providing a flat surface for singular longitudinal compression, the device allows for angular clamping, the device having a rotating base and clamping portion allowing for perpendicular or angular force application in two angular vector directions.

Abstract: An electric lift including a base, an upright boom support extending from the base and terminating in an end, and an elongated boom having a first end pivotally coupled to the end of the boom support and a second end. An electric power apparatus is coupled between the base and the lifting member for incrementally moving the lifting member between a lowered position and a raised position. A remote control is coupled to the electric power apparatus for controlling the operation thereof.

Abstract: An adjustable, open end wrench is described which has a wrench head for turning a variety of different size fasteners. The wrench head comprises two jaws each having an engaging surface for engaging with the fasteners. One jaw is generally fixed and connected to a gripping portion formed as a wrench lever and the other jaw is movable relative to the fixed jaw. The wrench head comprises an adjustable mechanism by which the jaws may be spaced apart including a maximum spacing dimension between the jaws. The wrench head further comprises an imaginary centerline intersecting both of the jaws substantially perpendicular to the engaging surfaces of the jaws as viewed from a side view thereof. And further wherein, each jaw has a width dimension measured at the centerline, and the width dimension of both jaws combined is relative to the maximum spacing dimension between the jaws.

Abstract: A portable plumbing workstation used to install plumbing fixtures on sinks and to assemble tub/shower valve assemblies having a frame, a plurality of templates, the templates arrange and constructed to support at least one sink or tub/shower valve, the plurality of templates being interchangeable with one another and being pivotally carried on the frame for rotation about a horizontal axis, a releaseable lock for locking the template relative to the frame at selected angular positions about the horizontal axis, at least one sink retainer for securing a sink on the template such that when the template is at a first angular position, the sink can be inserted and secured on the template, and when the template is rotated about the horizontal axis from a first angular position to a second angular position, the sink is retained on the template for installing plumbing fixtures, the template when mounted on the frame being rotatable over 360° about the horizontal axis.

Abstract: The grease filter remover is a device that by working the handle the head pivots moving the stationary fingers. Moving the handle up and out will pivot top of head inward moving lower fingers out and top fingers in. Moving handle down and inward will pivot bottom of head inward moving lower finger inward and top of finger outward.

Abstract: A pressing tool for the unreleasable connection of two tubes comprises a pressing loop consisting of at least two segments and a tongs-type pressing clamp. The segments situated in the closing areas of the pressing loop and the free ends of the two halves of the pressing clamp are equipped with mutually corresponding coupling devices having a hinge-type construction. Thus, the pressing clamp can be swivelled with respect to the plane of the pressing loop.

Abstract: A wire gripper device has upper and lower gripper members. The upper gripper member is movably engaged to the lower gripper member to alternate between closed and open positions. Moreover, the lower gripper member has a lower gripper section. A lower notch is formed on the lower gripper section, wherein the lower notch is sized and configured to support a wire therein. In addition, a biasing member is engaged between the upper and lower gripper members.

Abstract: A method for CMP polishing with a first step slurry composition selective to a metal in a metal layer to remove the metal at a high removal rate during polishing, and a second step slurry composition selective to a barrier film and least selective to either of an underlying dielectric layer or a metal interconnection structure in the dielectric layer, to remove the barrier film at a high removal rate during polishing, and level a surface of the dielectric layer to the surface of the interconnection structure.

Abstract: A driving mechanism for plank clamp includes a gear set and a rack mounted on a clamp main body to mesh with each other, a first sleeve tightly mounted on a rotary shaft of the gear set, and a coupling arm mounted on a shank of the first sleeve. When the coupling arm is pivotally turned about the rotary shaft toward the clamp main body, the first sleeve and the gear set are caused to rotate at the same time, and the rack meshing with the gear set is caused to move backward toward the clamp main body. A movable jaw fixedly connected to a free end of the rack is therefore moved toward the clamp main body, which also function as a fixed jaw of the plank clamp, to a desired position to tightly clamp a plank between it and the clamp main body.

Abstract: An extractor tool, for removing plastic rivets, anchors, and the like, which have a broad head and a stem, having a proximal end, a distal end, a first part and a second part. Each of the first part and second part have a handle at the distal end, a jaw at the proximal end, and a mid portion therebetween. The first part and second part are pivotally connected at the mid portion and are capable of entering an open position and a closed position. Each jaw is angled upward from the mid portion, has an upper surface, a substantially perpendicular inner surface, and an intermediate portion angled between the upper portion and inner surface. The jaws have intermeshing teeth between the first surface and second surface which meet with substantially no space therebetween when in the closed position. The jaws have a forward portion fully at the distal end which is angled to the more proximal portion of the jaw so that it extends at a substantially ten degree angle to the mid portion.