Abstract: Embodiments of the invention are directed to a portable grinding apparatus comprising: a frame; a boring bar operatively coupled to the frame; and a grinding assembly operatively coupled to the boring bar, wherein the grinding assembly is adjustable in one or more axes by adjusting the frame or the grinding assembly for grinding a component secured to the frame.

Abstract: A method including mechanical removal and electrical discharge machining (EDM) working allowing symmetrical or asymmetrical holes to be produced with exact contours in a layer system including a metallic substrate and a non-metallic outermost layer is provided. In a first step, an outer region of the hole is worked by mechanical removal. In a final method step, when the underlying substrate or a metallic adhesion promoting layer has been reached an electrical discharge machining tool is used.

Abstract: The present invention relates to a tool for shaping and polishing an edge of an eyeglass lens. The tool includes a longitudinally extending body rotatable on the axis thereof, with a proximal portion and a distal portion. A first cutter extends axially and radially from the distal portion, and includes a first blade for shaping an edge of a lens. The distal portion has a first diameter defined by the first blade. A polishing hub is secured to and extends coaxially from the distal portion and is rotatable therewith. A second cutter is secured to and extends coaxially from the polishing hub and is rotatable therewith. The second cutter has a second blade for shaping the edge of the lens. The second blade defines a second diameter less than the first diameter. The present invention also relates to an edger having the disclosed tool, and a method of edging.

Abstract: A combination tool for machining a bore has a tool shaft transmitting a rotational movement and an oscillating movement in an axial direction of a bore to be machined with the tool. A horning tool is arranged on the tool shaft, and a deburring tool is arranged on the tool shaft at an axial spacing to the honing tool in a direction of a longitudinal axis of the tool shaft. The honing tool is configured to move for each honing stroke between a lower position and an upper position wherein a spacing between a lower edge of the honing tool and a lower edge of the deburring tool in the direction of the longitudinal axis of the tool is greater than a spacing of the lower edge of the honing tool to a workpiece surface when the honing tool is in the lower position.

Abstract: The present invention relates to a tool for shaping and polishing an edge of an eyeglass lens. The tool includes a longitudinally extending body rotatable on the axis thereof, with a proximal portion and a distal portion. A first cutter extends axially and radially from the distal portion, and includes a first blade for shaping an edge of a lens. The distal portion has a first diameter defined by the first blade. A polishing hub is secured to and extends coaxially from the distal portion and is rotatable therewith. A second cutter is secured to and extends coaxially from the polishing hub and is rotatable therewith. The second cutter has a second blade for shaping the edge of the lens. The second blade defines a second diameter less than the first diameter. The present invention also relates to an edger having the disclosed tool, and a method of edging.

Abstract: The present invention enables continuous working including working inner diameters with high efficiency. Working members 30, 40 are installed to be able to be attached to and removed from a front end of the tool main body 10 configured with a grinding member 13 on a portion of the axial direction. The working member 30 consists of a grinding reamer, the installation of which enables hole processing followed by inner diameter processing in one continuous operation. The working member 40 consists of a rotating brush, the installation of which enables inner diameter processing followed by inner surface brushing in one continuous operation.

Abstract: A tree trimming apparatus is provided for preparing a tree, such as a Christmas tree, for attachment to a tree stand. The tree trimming apparatus includes a raised platform supported by a plurality of legs. The platform also includes an opening for receiving the trunk of a tree. Below the platform is positioned a jaws assembly for affixing the tree in place. Meanwhile, the tree trimming apparatus includes a saw assembly for severing the base of the tree, and a drill assembly for drilling a recess into the bottom of the tree for receipt of the spike of a tree stand.

Abstract: A table for a drill press that includes a plate for attaching to the column of the drill press, a receptor associated with the plate and providing a well for providing clearance for a sanding cylinder operatively attached to the head of the drill press, a block replaceably disposed at least in the receptor for providing a work surface for resting a workpiece on when the workpiece is being drilled by the drill press or for securing a conventional vise to, and a clamp threadably engaging the cup, and when tightened against the block, maintains the block in the well. The plate has a throughbore that extends centrally therethrough. The receptor is a cup that depends perpendicularly from the throughbore in the plate. The block includes a lower portion that fills the cup, an optional upper portion that rests upon the plate, and an optional throughbore.

Abstract: A table for a drill press that includes a plate for attaching to the column of the drill press, a receptor associated with the plate and providing a well for providing clearance for a sanding cylinder operatively attached to the head of the drill press, a block replaceably disposed at least in the receptor for providing a work surface for resting a workpiece on when the workpiece is being drilled by the drill press or for securing a conventional vise to, and a clamp threadably engaging the cup, and when tightened against the block, maintains the block in the well. The plate has a throughbore that extends centrally therethrough The receptor is a cup that depends perpendicularly from the throughbore in the plate. The block includes a lower portion that fills the cup, an optional upper portion that rests upon the plate, and an optional throughbore.

Abstract: A clamping device has a collet or a sleeve that contains an inner coolant supply. The non-through parts of the clamping device have formed therein radial slits and/or intermediate slits that open at the machine side and/or the tool side of the shank of the device. The slits and non-through parts of the device are arranged in such a way that they form a coolant barrier.

Abstract: A combination tool for edging and polishing the edge of eyeglass lenses comprises an axially extending rotatable cutter body having first and second peripherally disposed and axially extending cutter portions. Each cutter portion has a first notch therein for shaping an edge of a lens. The first notches are equiaxially spaced along the body. An axially extending polishing tool is secured to the body and is rotatable therewith. The tool has a second notch formed therein for shaping an edge of a lens. An abrasive coating is applied to the polishing tool for polishing the lens edge.

Abstract: A cutter apparatus comprising an on-the-sleigh robot, a motor having a vertical output shaft and capable of shifting vertically, a rotary cutter detachably connected at the end of the output shaft of the motor, and a cordless TV camera installed on the robot. In particular, the rotary cutter has a disk-shaped support plate, whose side surface is abrasive, upper and lower disks parallel to each other, which are arranged in a row in axial direction to sandwich the support plate inbetween and whose exposed faces, respectively, are abrasive, a tapered reamer extending axially upward from the center of the upper disk, and a binder assembly to bind the tapered reamer, the upper and lower disks, and the support plate together and to fix the rotary cutter about an output shaft of the motor.

Abstract: A cutter shell for cutting a circular opening in a metal object formed of a tubular boring portion and a head portion. The boring portion has a tubular sidewall and teeth at the forward circumferential end. The sidewall is of thickness not greater than the teeth. The head portion has an outer circumferential perimeter secured to the tubular portion rearward circumferential end, the head portion being attachable to a boring bar by which the cutter shell is rotated. A circumferential abrasive band is affixed to the exterior circumferential surface of the tubular sidewall for engagement with the wall of a hole as the hole is cut in an object by the teeth to smooth and round out the hole for improved cylindricality.

Abstract: Apparatus (10) and a method for finishing a workpiece (12) are performed by a first spindle (24) that rotatably mounts a milling cutter (28) about a central axis A and a second spindle (32) also mounted on the support for rotation about the central axis A to mount a grinding wheel. The first spindle (24) has an annular shape that extends around the second (32), and the apparatus includes a drive (38) capable of rotating the first spindle (24) at a slower rate than the rotation of the second spindle (32) such that milling and grinding operations can be performed at effective speeds. An axial slide (40) mounts the first spindle (24) for rotation and for axial movement along the central axis with the second spindle (32) on which the grinding wheel (36) is mounted located within the annular support.

Abstract: A device for producing drilled holes with an undercut in facing panels includes a drill bit with a drill head that produces an undercut, and a drilling table for supporting a facing panel in which the drilled holes with an undercut are to be produced and displaceable in a plane of the drilling table. A trunnion projecting from a rotatable base member and engaging a bearing secured to the drilling table is movable between a first position in which the trunnion axis coincides with the axis of rotation of the base member, and a second position in which the trunnion axis is eccentric to the axis of rotation of the base member to effect swiveling of the drilling plate when the rotatable base is driven rotatably.The device has a mechanism for moving the trunnion between the first and second positions including a lever pivotally mounted on the base member, the trunnion being mounted on the lever, and a piston-cylinder drive secured to the base member for pivoting the lever.

Abstract: A diamond tool for combination drilling and routing. The tool has a shaft end and a cutting end with an aperture therein. The cutting end includes abrasive grit on the outer peripheral surface for routing purposes and has abrasive grit on the terminal end and the surfaces forming the aperture for drilling purposes.

Abstract: The device for producing an undercut drilled hole includes a drilling machine, a drilling tool having a drilling head widening conically towards its front end; an adaptor connecting the drilling tool and the drilling machine so that the drilling tool rotates with the drilling machine; a sleeve fixedly connected to the drilling machine and having a circumferentially collar, the adaptor extending through the sleeve with the drilling tool protruding from the sleeve; a fixed bearing bush structured to receive the sleeve so that the sleeve is pivotable in the bearing bush, the circumferential collar including a first axial end face arranged in linear contact with a wall of the bearing bush; and a resiliently deformable element, especially a rubber ring, arranged between an annular disc member connected to the bearing bush and a second axial end face of the circumferential collar opposite to the first axial end face for axially holding the circumferential collar.

Abstract: An improved temperature stable synthetic polycrystalline diamond (PCD) product includes at least one temperature stable PCD integrally and chemically bonded to a matrix carrier support through a carbide forming layer which is of a thickness of at least about 1 micron, the layer on at least one surface of the PCD is in turn bonded to the matrix carrier. A wide variety of shapes, sizes and configurations of such products is achieved through relatively low temperature and relatively low pressure processing. Various products of various geometries are described as well as the details of the processing to achieve chemical bonding of the PCD elements in a variety of support matrix carrier materials to form a unitary structure having a temperature stability up to about 1,200 degrees C.

Abstract: This invention relates to a method for boring a chamfered hole and a tool for the same hole to effect boring a through hole on a glass plate and to simultaneously effect chamfering on respective aperture on the both sides of the plate, and have the function to enable speedy and accurate boring work without bringing forth defective product with chipping-off, joggles on the glass plate.

Abstract: A drum sander (10) for woodworking which may be used in combination with a radial arm saw (25). The drum sander (10) includes a horizontal, rotatable sanding cylinder (31) which is supported above a work table (20). The wood (not shown) to be sanded is inserted beneath the sanding cylinder (31) on top of the work table (22). The sanding cylinder is supported, in two different embodiments, by either one (17) or two (17 and 55) vertical supports. The sanding cylinder (31) is also supported, in two different embodiments, by either a horizontal carriage arm (11) or a carrier bracket (52). The drum sander (10) also includes a slide fastener (34) which attaches the sandpaper strips (60) onto the sanding cylinder (31). Also disclosed is a removable dust collector (16) which covers the upper portion of the sanding cylinder (31) and is connected to the hose (49) of a vacuum.

Abstract: A boring unit and a honing unit are concurrently carried on the bed of a boring machine for performing boring and honing operations on the cylinder bores of an engine block. A unique clamping technique is employed to clamp the engine block to the bed of the boring machine while the honing device is operating on the furthest most cylinder bore and adjacent the boring unit.

Abstract: A knuckle casting for a railroad coupler is carried by a conveyor to successively-disposed stations. At a first station, the knuckle casting is positioned relative to reaming tools at opposite sides of the conveyor. Position control arms carry conical members to engage with a pivot pin opening in the knuckle casting and hold-down arms support the casting while the pivot pin opening is reamed to a desired size. Thereafter, the knuckle casting is moved to a rough-grinding station where it is engaged by pin members, one of which extends into the reamed pin hole opening. The knuckle casting is raised to a position above the conveyor where it is rotated for contact with a grinding wheel. The position of the grinding wheel is controlled by a cam driven by an arbor shaft used to support the casting. A cam follower moves a frame that supports the grinding wheel to position the grinding wheel according to a desired contour.

Abstract: A method for repairing panes of glass is provided which enables fractured panes to be strengthened and holes refilled while the pane remains installed in its support structure. The method comprises steps for relieving stress points in a fractured pane, and for applying substantially transparent materials for filling portions of the pane where glass has been removed or separated. The method enables repair of laminated glass panes as well as solid glass panes.

Abstract: A drilling machine comprising an article holding device and two drilling devices, being characterized that each drilling device has one drill turning in the same direction at a synchronized speed, each drill approaching to or separating from each other symmetrically to make a hole from both sides of a rigid and fragile article made of glass or ceramic e.g. lenses of spectacles at the same time, and that the hole is chamfered and further a groove for fixing the article to the frame is made on the article, as required.