Abstract: A conical point sharpener for sharpening conical shaped points such as fishhooks, needles, surgical instruments includes a handle, a mandril with an abrasive material coating fixed to one end of said handle, a drive spindle, wherein said drive spindle is movably attached to said handle and envelops said mandril, an outwardly protruding tapered opening on said drive spindle, and a precision point alignment nest, formed between said abrasive material coating on said mandril and said drive spindle, such that when the conical point to be sharpened is placed in said outwardly protruding tapered opening of said drive spindle, the item to be sharpened is located in said precision point alignment nest and the point of the item is touching said abrasive material coating on said mandril so that the user can then rotate said drive spindle while holding the item to be sharpened, thereby conically sharpening the point as the item to be sharpened rotates around said mandril.

Abstract: An apparatus, system, and method thereof for material positioning and shaping. The apparatus includes a two-section positioning system which includes a guide and follower thereon for positioning along a path.

Abstract: Jig for grinding sharp-edged tools. The jig consists of a housing in the form of a casing designed with a passage running through it whose at least one end is flat, plus a seat, also in the form of a casing designed with a passage running through it, located in the passage of the housing and lockable in this housing in an inclined position in relation to the passage in the housing, whereby the seat is provided with a clamping device (4) for firmly holding a tool that is to be ground so that it extends through the passage of the seat, and that the seat has such a length that one end of it extends out beyond the housing at the flat end of the housing.

Abstract: A support system enabling the dental technician an easy and concise method of grinding dental castings including a pedestal for supporting the underside, an outer arm which supports the outside surface of the casting, both being variably shaped to adapt to the wide variety of their shapes and sizes. The base which connects both the outer arm and pedestal provides movement for proper positioning of the dental casting.

Abstract: A swing grinding fixture and process for using the same is disclosed that enables a conventional surface grinder to remanufacture a machine tool cutting insert by grinding a predetermined shape into the insert. A quick clamping insert holder coupled to a slide secures the tool insert in the fixture. A precision spindle cartridge is mounted in a rigid fixture body and coupled to the slide to provide the swing motion required to generate the radius to be ground. The rigid fixture body includes a pair of micrometer adjustable stops which limit the arc through which the slide may be swung and control the flank shape ground into the insert. In an alternative embodiment, a sine plate is attached to the fixture body and is used to incline the fixture to a predetermined insert rake angle. In operation, the grinding fixture is securely mounted to the table of a surface grinder and a cutting tool insert is secured in the insert holder.

Abstract: A device and method for contouring and sharpening an ice skate blade. The device uses a fixture for holding the ice skate. The fixture employs retractable depending cam rollers to be guided by cam templates recessed into the top surface of the table of the machine. The cam templates are coverable when not in use, thus increasing the usefulness of the top surface of the table. The grinding wheel is movable into and away from the fixture. One of the cam rollers is mounted to an eccentric wheel for pitching the ice skate blade in relation to the grinding wheel. The method comprises the steps of clamping a skate into the fixture, retractably depending or lowering the cam rollers to engage the cam templates in the table of the machine, adjusting the cam roller by operating the eccentric to achieve the desired pitch, moving the grinding wheel to the fixture holding the ice skate and contouring or sharpening the ice skate.

Abstract: A tool and method for holding an integrated circuit (IC) sample so that only a cross-section of the processed layers of the sample is polished and exposed. The tool includes (a) a mounting block with a recess, (b) a pivoting member pivotably attached in the recess so as to be pivotable between a first position at which an edge of the sample can be ground at a first angle of approximately 25.degree. and a second position at which the sample can be polished at a second angle of approximately 0.degree. to expose the cross-section of the processed layer without polishing the more resistant substrate, (c) a sample holder removably attached to the pivoting member with a face inclined at the first angle for attachment of the sample, and (d) a level corrector for adjusting a side-to-side tilt of the mounting block.

Abstract: A cutter sharpening accessory or cutter holder for use in conjunction with a drill press, radial arm saw or like woodworking apparatus to which a grinding tool, such as a diamond cup wheel, can be secured and rotated at high speed and having a work surface disposed thereunder on which the holder of the invention can be displaced relative to the grinding tool. The cutter sharpening accessory provided in accordance with the invention is adapted to rough and micro adjustment both radially and radial transversely to properly position a cutter to be sharpened relative to the horizontally disposed grinding face of the grinding tool. Continuous adjustment vertically is advantageous provided, furthermore, to ensure that the surface to be ground is properly located vertically relative to the grinding tool.

Abstract: A sharpening device (2) for sharpening the teeth (131) of a rotary blade (130) is described in which the device (2) comprises a substantially planar base (4) to which is pivotally attached a back plate (10) containing a number of components or subassemblies. One subassembly is for retaining rotary blades (130) in such a manner as to allow rotation of the blades (130) so that each tooth (131) of the blade (130) can be sharpened in turn. Another subassembly attached to back plate (10) is a guiding subassembly which is selectively angularly inclinable to the base (4) for being accurately located relative to a rotary blade (130) so that movement of a round file (75) linearly between rollers (74) attached to roller block (60) which in turn is angularly inclined to adjustment plate (34) effects sharpening of teeth (131).

Abstract: A spin index fixture has a housing which is provided with an air inlet shaft for permitting pressurized air to enter the housing and to propagate through grooves disposed along the outer surface of the sleeve. The air then enters into a clearance volume between the housing and the spindle and serves as an air bearing. The spindle is further provided with impelling recesses disposed circumferentially along the outside surface of the spindle at an axial location that is in alignment with the pressurized air inlets. The force of the air against the recesses rotates the spindle about its axis when the pressurized air supply contacts the recesses.

Abstract: An indexing and rotational feed control apparatus for a rotationally mounted spindle holding a work piece includes an indexing housing connected to the spindle and carrying an indexing finger is rotatably mounted relative to an indexing plate such that rotation of the indexing wheel provides sequential releasably fixed rotation of the spindle between angularly indexed positions. The indexing plate is connected to a shaft which in turn is connected to a rotary actuator such that rotation of the actuator permits precise rotation of the indexing wheel and indexing housing in either direction without disturbing the releasably fixed indexed position between the spindle and indexing wheel as set by the releasably fixed engagement between the indexing finger and the indexing wheel.

Abstract: Apparatus for supporting and containing a dental prosthesis during the micro-etching thereof is disclosed. The apparatus includes a framework, a holding mechanism carried by the framework for holding the prosthesis in a position which permits micro-etching, and a flexible hood, for example, a disposable plastic bag, which has an open end sized to slidably receive the framework into the hood while holding the prosthesis. The open end is sealable while the framework is so received, and the hood is transparent to permit viewing of the prosthesis within the hood. The hood is sliceable with a knife edge to provide a small slit which permits the tip of a micro-etching tool to extend into the hood. Alternately, the hood may be pre-slit for the same purpose.

Abstract: A grinding machine includes a working table slidably engaged on the base, an opening is formed in the base, a belt is extended through the opening, a rotating wheel is coupled to the belt for driving the belt, another belt is extended between the working table and the base and includes two ends in which one is fixed to the working table and the other is fixed to a block, a bolt is engaged with the working and one of the blocks for moving the blocks toward each other or away from each other so as to adjust the tension of the belt. The belts are shielded by the working table and will not be splashed by cooling oil used in the grinding machine.