Abstract: A vertically stacked planarization machine includes two or more vertically stacked individual platens on which wafers are polished. The wafers are held by wafer holders which may rotate the wafers. The individual platens are also orbited in order to polish the wafers. The platens may have a top and bottom polishing pad for polishing multiple wafers. A single wafer holder, using hydraulic or pneumatic means, between two platens will hold and exert pressure on both a downward wafer and an upward wafer. The pressure exerted onto the top and bottom wafers by the dual wafer holder is designed to be equal to prevent any bowing of the platen. The platens are supported by three vertical members positioned at 120 degree intervals around the circumference of the platens to form a platen stack. Transport elevators are used to carry the wafers to and from the wafer holders and the platens.

Abstract: An apparatus for folding products utilizes interchangeable buckle plates and bypass plates as well as a buckle plate and diverting device combination to accomplish various folding formats, i.e. Z-folding, C-folding and half-folding. When the product is a combination of a document with an insert, the document is folded around the insert as initially the diverting device operates to deflect the leading edge of the product into its associated buckle plate to begin the folding process. The folding apparatus is design for use in an electronic publishing system.

Abstract: A method is disclosed for grinding and polishing a substrate (20). An abrasive slurry (26) is applied to the surface (22) of the substrate (20). A lap (28) is moved across, and in engagement with, the surface of the substrate (20) in the medium of the abrasive slurry (26). Ultrasonic energy is mechanically applied to the surface (24) of the substrate such that half wave resonance occurs substantially at the surface (22) of the substrate (20). In this manner, a thickness of material is removed at an enhanced rate from the surface (22) of the substrate (20).

Abstract: A high pressure water cleaning method and apparatus using a nozzle assembly wherein abrasive particles (172) are separated from a transport gas and injected into a high pressure water spray within an impact and mixing chamber (320) at an incidence angle (MA, MA') and velocity sufficient for the separated particles to penetrate into and thereby mix with a high velocity core (360) of the water spray (FS). The spray pattern is preferably fanned shaped instead of cone shaped, and preferably does not touch at least one outlet passage wall downstream of the impact chamber (320) to provide an exit flow path (AG) for the separated transport gas. For this purpose, an axis (CL) of the spray pattern may be offset (OS) from the center (SC) of the outlet passage (302) of the nozzle assembly, which may be either fixed (280, 285) or rotated (650).

Abstract: A device for grooving continuously-fed flat workpieces to form fold lines, including a slotted disc with a circumferential groove into which groove the circular edge of a grooving disc penetrates, which together with the slotted disc constitutes the grooving tool. A clamp rollers which runs off of a cylindrical section of the slotted disc prevents the free outer areas of the workpiece from being pulled into the operating grooving tool. In order to decrease structural expenditure, the clamp roller includes a cylindrical disc adjoining the grooving disc which rotates at the same rate of revolutions as the grooving disc.

Abstract: A combined motor and mechanical drive that is used with an oscillating spindle sander is disclosed. The oscillating spindle sander has a worktable for supporting a workpiece. A spindle extends upwardly through the worktable and has a sanding surface. An electrical motor is supported by the worktable and includes a shaft for imparting rotational motion to the spindle. The mechanical drive is contained within a housing that is supported by the motor and is connected to the motor shaft for imparting reciprocal or axial motion in addition to rotary motion to the spindle. The mechanical drive includes a speed reducer that is coaxial with the motor shaft. The speed reducer drives a cam follower that engages a cam in the housing for imparting reciprocal motion to the spindle at a rate much less than the rotational speed imparted to the motor shaft by the motor. The speed reducer includes a cycloidal gear that engages a complementary ring gear provided in the housing.

Abstract: A grinding wheel for treating a surface of a power transmission belt/belt sleeve. The grinding wheel has a cylindrical body defining a rotational axis and having a circumferential outer surface with there being a plurality of abrading elements arranged in circumferentially spaced relationship on the outer surface of the body. Reliefs are provided between adjacent abrading elements. The invention further contemplates a method of treating a belt using the inventive grinding wheel.

Abstract: A closed end box line wrench includes at least one wrench end and a tool body. The wrench end has a hole therethrough sized and adapted to engage an object, such as a nut. The hole is in communication with an opening for enabling the wrench to be positioned on a line, tubing, or the like by sliding the line through the opening and into the hole. The hole of the wrench end has a multi-sided inside periphery, preferably corresponding to an outside periphery of the object, which contacts the object for gripping the object during use of the wrench. The tool body has a protuberance sized and adapted to be disposed within the opening of the wrench end for providing an additional side of the multi-sided inside periphery for contact with the object. The tool body has a hole for receiving a tool, such as a torque-applying tool, for manipulating the wrench during tightening and loosening of the object.

Abstract: A machine for grinding longitudinal troughs in the edges of grooves of a power steering valve input-shaft (4), the input-shaft being supported for rotation on supports (14, 15), a grinding wheel (30) having a contoured periphery corresponding in cross-section to the cross-section of the trough (5), the grinding wheel being relatively movable towards the input-shaft to some predetermined depth of engagement therewith and to be retracted therefrom and being movable axially relative to the input-shaft to form a longitudinal trough (5) to produce oblique terminations of the trough.

Abstract: Apparatus and a method for sharpening blades of a lawn mower cutting cylinder are disclosed. In the apparatus, a cutting cylinder is mounted on a fixed bed whereupon it can be subjected to the sharpening action of a grinding wheel passing along the length of its blades. The apparatus comprises urging means for resiliently urging the cylinder to rotate during the pass of the grinding wheel and to urge the blade against a support member. Additionally, indexing means is provided operable to rotate the cylinder about its axis to bring successive blades into position for sharpening by the grinding wheel.

Abstract: Blade-sharpening apparatus includes a blade holder that is axially and pivotably movable on an upright post, to enable controlled manual movement of a clamped blade in contact with a sharpening stone supported on an underlying base. The means by which the clamping head is mounted permits adjustment of declination, for producing the desired blade-edge angle, and it permits pivoting of the head for maintaining optimal contact between the blade and the surface of the stone.

Abstract: An apparatus for grinding a workpiece while electrolytically dressing an electrically conductive grinding wheel. The apparatus has an electrically conductive grinding wheel with a contact surface for contacting the workpiece, an electrode opposed to the grinding wheel and spaced a distance therefrom, a nozzle for supplying conductive fluid between the grinding wheel and the electrode, and a device for applying a voltage between the grinding wheel and the electrode. An eddy current sensor is arranged in proximity to the working surface of the grinding wheel for measuring the position of the grinding wheel in a non-contact manner. A grinding wheel controlling device is provided for controlling the position of the grinding wheel based on the values measured by the eddy current sensor.

Abstract: An optical fiber end-surface polishing device has an improved ferrule fixing device allowing ferrules with optical fibers to be attached to or detached from a holder plate for polishing by a simple operation. The optical fiber end-surface polishing device, having a ferrule fixing device, simultaneously polishes the end surfaces of a plurality of ferrules with optical fibers fixed to and supported by a holder plate. The device includes ferrule accommodating sockets provided on the holder plate and having through holes for accommodating ferrules; and ferrule presser levers supported by stationary shafts substantially parallel to the through holes and biased toward descent by biasing devices, wherein each of the ferrule presser levers is movable between an angular position where the ferrules inserted into the associated ferrule accommodating sockets are downwardly pressed and an angular position where the polished ferrules can be detached.

Abstract: An attachment for a conventional pry bar facilitates the bar for use in the pulling of stakes. The attachment comprises a section of pipe which is flattened to provide a tubular portion telescopically receivable over the end of a pry bar and thin edge portion to one side of the tubular portion. The edge portion is formed with a notch proportioned for slidable receipt around a stake to be pulled and gripping engagement with the stake upon cocking of the attachment relative to the stake. In use the stake is cocked for gripping and pulling engagement with the stake by fulcruming the pry bar against a surface adjacent the stake.

Abstract: A device for accurately locating the blade of a skate mounted in a skate holder so that it may be ground correctly. The device includes a base block mounted to a base of a skate sharpener, a lever pivotally mounted to the block, the block having a blade contacting surface which is substantially perpendicular to the sharpener base, a deflection gauge for measuring the deflection of the lever from a neutral position. A pivotal axis of the lever is parallel to a plane through grinder wheel and parallel to the sharpener base.

Abstract: A band sander has a motor housing (2) and a band running case (17) located below the latter, the abrasive band revolving therein. The abrasive band is driven via a belt (17) and belt wheels (14, 16). Because of manufacturing tolerances, it is necessary to be able to adjust the belt tension in a simple manner after the device has already been assembled. This is effected by an insert plate (19) which is inserted into a slot (18) between the motor housing (2) and band running case (7) so as to be displaceable. The insert plate (19) has steps (31 to 33) of varying height which determine the distance between the motor housing (2) and band running case (7) and accordingly determine the belt tension.

Abstract: An apparatus for holding a tool having a cutting edge in a predetermined abrading orientation with respect to a tool abrading apparatus. The apparatus comprises a base member supportable on the tool abrading apparatus and adapted to support a tool thereon. A positioning member is movably attached to the base member for selective abutting contact with the tool. An adjustment assembly is attached to the base member for selectively advancing and retracting the positioning member relative to the base member to position the tool into the predetermined abrading orientation. A tool retaining member is removably attached to the base to selectively retain the tool on the base member in the predetermined abrading orientation.

Abstract: A system for removing dust generated by rotary hand tools such as grinders and sanders. A shroud is installed over the grinding or sanding head in communication with a vacuum exhaust system to draw away dust, chips and the like. The shroud includes a generally circular base having a peripheral skirt on one side to surround the grinding or sanding disc and a collar arrangement on the other for attachment to a cylindrical tool housing. The collar may be an axial partial tube section that is clamped to the housing. Collar flexibility allows use with housings over a range of housing diameters. Alternatively, the collar may be one or more brackets slidably mounted on the base. The brackets are adjusted to contact the housing and are clamped to the housing and, if necessary, are fastened to the base. Removable and adjustable exhaust tubes are provided to accommodate different desired vacuum hose directions and different vacuum hose diameters.

Abstract: An apparatus forming a portable, hand-operated machine (1, 1', 1"), having a circular cutting wheel (4) or saw blade (4") which is rotatable about a center of rotation (5, 5"), comprises a double-armed holder (9) with a rear arm (20) which, at its rear, free end (27), is connected to the machine at a first hinge, rotatable about a first axis of rotation (18, 18a, 18b, 18") parallel to the center of rotation of the cutting wheel or the saw blade, and, at the other end, is connected rotatably, by means of a toggle joint (22), to a front arm (21) which in turn is connected rotatably, at its front, free end, to a securing device about a second axis of rotation at a second hinge, for rotatable anchoring of the holder and, thus, of the machine on the object which is to be cut or sawn.

Abstract: An apparatus for polish-grinding a semiconductor wafer which assuredly removes contaminant dusts from the polished wafer includes a grinding device for polishing a surface of the wafer. The grinding device has a chuck table on which the wafer is laid, a grinding wheel for grindingly polishing the wafer, and means for supplying water to the wafer. The means for supplying water provides water to region of contact between the grinding wheel and the wafer. The apparatus also includes a cleaning device for cleaning any remaining dust on the wafer, having a spin chuck table for rotating the polished wafer, means for supplying a detergent to the polished wafer. The means for supplying the detergent injects the detergent on the surfaces of the polished wafer. The apparatus also includes a controller for controlling the grinding device and the cleaning device.