Abstract: The present invention relates to a beveling wheel and method for forming a beveled lens with the beveling wheel for use with eyeglasses. One embodiment includes a prescription lens for use on an eyeglass frame having a receiving channel. The receiving channel includes a channel bottom and opposed interior wall surfaces having a first angle therebetween. The prescription plastic lens includes a prescription lens body generally defined by a peripheral edge having a bevel extending away from the edge to a vertex. The bevel has a distal portion with a second angle. The bevel is receivable within the receiving channel. At least a portion of the vertex of the bevel has an interference fit with the receiving channel bottom when held within the eyeglass frame. The first angle is greater than the second angle.

Abstract: An arrangement (1) including a tool (7) and a feeler device (11) is movably guided along the edge of a workpiece (5) so that the workpiece is machined, for example, trimmed, along the edges (3) of the workpiece by the tool. The arrangement (1) can be adjusted perpendicularly to the plane of the workpiece, whereas the feeler device, which is designed for example as a Bernoulli disk (13), has a constant distance from the workpiece, so that the tool also is always guided at the correct position relative to the edge of the workpiece. Thus even for workpieces deviating from the target position, for example workpieces that are not level, the tool is always guided in such a way that the tool is correctly oriented relative to the center plane of the workpiece and, for example, the trimming of the borders at the edges of the workpiece is performed reliably.

Abstract: The invention relates to a sharpener for sharpening a cutting tool, such as a knife, the sharpener comprising a body part (1), a rotatable sharpening roll (2) resting on the body part, and a first guide groove (11) above the sharpening roll for receiving a first tool blade and for guiding it in relation to the sharpening roll (2). To allow the sharpener to be made structurally simple and well applicable for sharpening both narrow and wide blades, the sharpener comprises a second guide groove (14), which is wider than the first guide groove (11), to be arranged above the sharpening roll (2) to allow a second tool blade to be received and guided in relation to the sharpening roll (2).

Abstract: A battery-powered, hand-held blade sharpener features a self-adjusting set of guide rollers which widen to accommodate the thickness of the blade being sharpened. First and second semi-circular face plates mount sets of guide rollers, one of the face plates is mounted for pivotal movement and sprig-biased to a “closed jaw” position which the thickness of the blade opens as necessary.

Abstract: The invention relates to a sharpener for sharpening a cutting tool, such as a knife, the sharpener comprising a body part (1), a rotatable sharpening roll (2) resting on the body part, and a first guide groove (11) above the sharpening roll for receiving a first tool blade and for guiding it in relation to the sharpening roll (2). To allow the sharpener to be made structurally simple and well applicable for sharpening both narrow and wide blades, the sharpener comprises a second guide groove (14), which is wider than the first guide groove (11), to be arranged above the sharpening roll (2) to allow a second tool blade to be received and guided in relation to the sharpening roll (2).

Abstract: A chainsaw sharpener mounted on and forward of the electric motor of a sharpener body (2) via a mounting portion (9) having a guide body (8) with an upper plate face (80) and wall faces (81a to 81e) which have a substantial X-shape as seen in plan view, and which are fit into and along an upper part of the saw chain in alignment with a sharpening angle of either a left or right cutter blade (31, 32) of a saw chain (30). Formed at a substantially central surface of the guide body (8) is an exposure portion made of openings (85, 86) which make it possible to watch, from above, the grinding tool (7) and a cutting edge of a cutter blade to be sharpened. A guide portion (87) presses, from above, the cutter blade to be sharpened so as to prevent the cutter blade from wobbling or tilting, and further to define an accurate cutting edge angle.

Abstract: The present invention is directed to an automatic rotation knife sharpener where the crossed sharpening rods are automatically rotated each time a knife is passed down and through the sharpener. The rotation is derived through the means of a spring steel actuator mechanism making contact with the cogwheels of the sharpening rod holders. Magnets retain the sharpening rods in place within the sharpening rod holders. Sharpening rods may be easily removed and stored in troughs on the upper surface of the protective cover. A variety of sharpening rods with different abrasive surfaces can be easily exchanged in the device.

Abstract: It is to provide a saw chain sharpener such that while a saw chain is clamped at both ends by a holding plate, which is supported forward of a handy type electric motor, so as to stabilize its sharpening posture, a grinding tool such as a round rod-shaped grinding tool or a round rod-shaped grindstone, which is attached to an end of the electric motor, is rotated at a high speed so as to sharpen, at a side thereof, the saw chain efficiently. A support member is projected forward from a sharpener body which is formed such that a round shaft-shaped grinding tool for grinding is attached to an end of a handy type electric motor.

Abstract: A pair of profile wheels 14, 18 in which concavely shaped grinding surfaces 141, 181 asymmetrical to each other are opposed to each other at right angle so as to form a concavely shaped grinding surface having a substantially semi-circular section, a guide plate 13 which is mounted on a spindle 11 of an electric or air tool side of the profile wheel 14 freely rotatably for guiding a grinding direction by bringing the edge of the circular shaped member into contact with a reference face of a grinding object material and a stopper ring 16 which is mounted to a spindle between the pair of the profile wheels 14 and 18 freely rotatably for controlling a grinding distance Y from the edge by bringing its outer peripheral end face 161 into contact with the edge of the grinding object material, are fixed to the spindle 11 with a lock nut such that they are set at right angle to the spindle.

Abstract: A cutting guide arrangement cutting guide arrangement, which is incorporated with a power saw machine which includes a cutting platform, having a cutting channel, for supporting a work piece thereon and a cutting blade overhung above the cutting platform for cutting the work piece along the cutting channel, includes a primary guider detachably mounting on the cutting platform in a slidably movable manner. The primary guider includes a guiding arm and a plurality of rip guides provided thereon, wherein each of the rip guides has a guiding edge, which is 45 degrees with respect to the cutting channel, adapted for selectively guiding an edge of the work piece to align a diagonal of the work piece with the cutting channel of the cutting platform.

Abstract: An electronic hollow grinder bevel angle indicator wherein a microprocessor calculates the grinding bevel angle that will be obtained when a tool is placed flat upon a tool rest and presented to the periphery of a rotating grinding wheel. The calculated bevel angle is the acute angle of intersection between the tool rest plane and a plane tangent to the grinding wheel periphery at the line of intersection between the grinding wheel periphery and the tool rest plane. The microprocessor also calculates the air-gap between the tool rest and grinding wheel, and warns the operator when the air gap exceeds a specified safety threshold.

Abstract: A sharpening attachment for a powered rotary hand tool of the type which has an output shaft with a tool bit holder that extends from a housing is disclosed. The sharpening attachment is mounted on the housing and comprises a body portion with an interior opening through which a sharpening bit held by the tool bit holder can pass, with the sharpening bit being exposed for engaging a surface of a tool. The attachment has a jaw portion attached to the body portion which extends forwardly thereof and also has a support surface for holding the tool member at a predetermined angle relative to the sharpening bit, and an extension attached to the body portion and extending forwardly thereof at least to a point that includes a major portion of the exposed portion of the sharpening bit for the purpose of providing a protective guard.

Abstract: A motor driven and or mounted cleaning attachment manufactured of a rigid material, having no need for adjustment, for the purpose of clearing multiple bolt pitch diameters and lengths. Consist of plates sandwiched and fastened together. Mounting plate manufactured to mount directly to motor housing, or a base being driven by a motor, jack-shaft and pulley or gear driven system. The mounting plate is bored with an indexed pattern of multiple diameter bored through holes. Center working plate is mounted to the mounting plate, and has the same indexed pattern of bored through holes as the mounting plate. Except the index has been partially bored away and exposed to the cleaning wheel bore. The Cleaning wheel rotates within the cleaning wheel bore located in the center working plate. Cover plate is mounted to the center working plate, and has the same indexed pattern of through holes.

Abstract: A tool adaptable for use with a power drill for the duel purpose of sanding and cutting a work piece without changing tools. The tool includes two components, one for cutting and one for abrading, which are reduced in diameter as required in order to provide suitable cutting and abrading surfaces for future use.

Abstract: The present invention relates to an electric sharpening machine for chain saws capable of correctly sharpening the teeth at any number of desired cutting angles within a given range; this system according to the invention allows rotation of an upper portion of the saw, including the motor and the grinding wheel. The chain to be sharpened can be progressed and automatically gripped by the lowering of the grinding wheel into a grinding position. The chain may be turned 180° for grinding opposing teeth when the upper part is rotated into a complimentary position. In this way it is possible to let the abrasive grinding wheel sharpen the saw teeth, both in case of left and right teeth, with rotation occurring towards the inner part of the teeth and opposite to the position of the operator for avoiding ejecting dangerous sparks and materials at the operator.

Abstract: A blade sharpening assembly generally consisting of a support member having a first opening and at least a second opening spaced from the first opening, a blade holding assembly including a first member having a projecting section receivable in the first opening and cooperable with a portion of the support member for detachably securing the blade holding assembly in supported relation on the support member, a second member pivotally connected to the first member and means for pivoting one of the blade members relative to the other blade member about a fulcrum point to cause opposed end portions of the blade members to converge and engage a blade disposed therebetween in clamping relation, and a sharpening member including a sharpening stone engageable with a blade clamped between the blade holding sections, a longitudinally projecting guide rod receivable within the second opening in the support member and a gripping section which may be gripped to move the sharpening member with a reciprocating motion when t

Abstract: A tile cutting guide arrangement includes a cutting table, slidably supported on the supporting frame, having a main cutting channel wherein a saw blade of a power saw machine is arranged to overhanging travel along the main cutting channel, and a tile guider slidably mounted on the cutting table. The tile guider includes a plurality of rip guides spacedly formed thereon wherein each rip guide has a guiding edge, which is 45 degrees with respect to the main cutting channel, adapted for guiding an edge of a tile on the cutting table, so as to align a diagonal of the tile with the main cutting channel of the cutting table.

Abstract: A hand held sharpener comprises a housing that has three sharpening stones having part cylindrical outer surfaces. A center stone is supported on the housing, and second and third stones are positioned on opposite sides of the center stone with axes of the peripheral surfaces of all the stones generally parallel. The stones axes lie on a plane but the spacing of the axes of a left stone is slightly different from the spacing between the axes of the center stone and the right stone, to form two different sharpening angles where the surfaces of the stones overlap. The configuration permits having a two stage sharpener with three stones that are held in a convenient housing for mounting and use. Both sides of a knife edge are sharpened simultaneously as the knife is drawn across the stones at the overlap region.

Abstract: Apparatus for removing a burr from an aperture in a workpiece, using a rotating deburring tool having a flexible or partly flexible shaft, an abrasive mechanism that rotates on the shaft and a collar that protects the workpiece from abrasion when the abrasive mechanism is being positioned for deburring. Optionally, the shaft and abrasive mechanism move laterally as they rotate. Optionally, a shaft holder includes a protective surrounding sleeve to catch or deflect any fragment of the shaft holder that might fly off. Optionally, the shaft and the workpiece rotate independently of each other. Two or more different abrasive mechanisms can be simultaneously attached to the shaft. The cross-sectional shape of the abrasive mechanism may be curvilinear and/or polygonal, depending upon shape of the workpiece surface. Optionally, a shaft restrictor receives the shaft and limits lateral motion of the rotating shaft.

Abstract: A movable frame assembly to move a device for dressing a grinding wheel for the sharpening an ice skate blade. The device uses a housing surrounding a grinding wheel and movable frame with a swing arm. A dressing tool is mounted in the dresser swing arm and the dresser swing arm is rotatable between a storage position and an operating position. The movable frame assembly slides along rails to allow positioning of the dressing tool into the grinding wheel. Horizontally and vertically disposed bearings are positioned beside and under a rail with resiliently biased bearings are held against the top of the rail. The bearings help the rails of the movable frame move smoothly. The rails are spaced apart by yokes on the arm or a bar across the top of the dresser to prevent binding as the movable frame is slid for dressing the wheel. Adjustment of the rails is also provided for by adjustment slots at the back of the rails.

Abstract: A fine-machining tool, a honing wheel in particular, characterized by an axial laminar structure with a center layer and two exterior layers bonded to each other, the center layer consisting of a plastic material in which cutting grains are embedded, and the outer layers engaged with the two edge areas of the workpiece consisting of ceramically bonded cutting grains.

Abstract: An apparatus for grinding edges of rigid materials including a support member, an upper grinding element rotatably mounted relative to the support member, a bearing affixed to the upper grinding element, a lower grinding element rotatably mounted relative to the support member, and an insert element removably affixed around the bearing and interposed between the support member and one of the upper and lower grinding elements. The insert element is of an annular configuration and has an outer diameter less than an outermost diameter of the grinding elements. The insert element is interchangeable with various other insert elements.

Abstract: A toothed timing belt is produced from a belt blank utilizing an apparatus having a belt blank fixturing device for supporting the belt blank for selective indexable rotation about a first axis and a toothed grinding wheel rotatable about a second transverse axis and supported for movement across the width of the belt blank in a direction parallel to the first axis for cutting a series of circumferentially spaced transverse teeth into the belt blank. The belt blank is indexed with each pass of the grinding wheel until the entire belt has been provided with teeth. The toothed belt blank may then be severed about its periphery to provide a plurality of discrete timing belt members.

Abstract: A hand held ice skate blade sharpening tool has a holder having a rotatably mounted cylindrical sharpening stone material. The holder and stone are retained with a two-piece body. A releasable connector holds the body together. The body has a longitudinal access slot extending radially from the outer surface of the stone. Elongated guides projecting upwardly adjacent the slot are transversely spaced at a distance substantially the same as the width of an ice skate blade to guide and limit lateral movement of the blade within the slot during the sharpening procedure. Shims are positioned in grooves in the guides to adjust the width of the slot to accommodate ice skate blades having different thicknesses. A transverse groove intersects the slot and guides. The bottom of the transverse groove is open to the channel exposing the outer surface of the stone.

Abstract: This invention relates to a shaper head or rotating matrix which can be used in a process for manufacturing decorative mouldings by contacting a stock material to the rotating shaper head or matrix, such that the shaper head or matrix removes stock material. The resulting moulding is a relief of or has a negative surface in relation to the shaper head. The shaper head is a rotatable matrix comprising an axis and an exterior surface wherein the plane through the exterior surface and normal to the axis is circular and wherein at least two or more of said planes are characterized by different radii and an attaching mechanism for attaching the matrix to a source of rotary motion through the axis of the matrix. The invention also includes a process for manufacturing the mouldings and the mouldings produced by the process.

Abstract: A portable sharpener for sharpening a blade, which has at least one cutting edge, has an elongated body with a guiding channel where the blade can be inserted therethrough and guide the sharpener along the blade side walls during sharpening. The elongated body has a chamber dimensioned to house and hold an elongated abrasive member. A portion of the abrasive member is exposed through the channel to enable the blade edge to engage the abrasive member. The chamber also has a space to capture the blade filings or fragments. A movable guide having another channel is pivotally secured to the body such that the guide can pivot relative to the body.

Abstract: A hand held skate blade sharpening tool has a rotatable sharpening stone retained within a channel-shaped body member. Removable pins mounted on the body are located adjacent the outer ends of the stone to limit longitudinal movement of the stone within a channel of the body member. The body member has an access slot extending radially from the stone. Elongated guides projecting upwardly adjacent the slot are transversely spaced at a distance substantially the same as the width of the skate blade to guide and limit lateral movement of the blade within the slot. A transverse groove interrupting the slot and guides is open to the channel exposing the stone. This enables the stone to be manually rotated within the channel to rotate an unused sharpening surface into alignment with the slot.

Abstract: A sharpening device is provided for an edge of a ski which consists of a handle to be gripped by a hand of a person. A pair of Y-shaped flexible arms extend from the handle. A pair of sharpening members are also provided. A structure is for holding the sharpening members at reverse overlapping angles on distal ends of the arms. When used it will always result in a ski ,edge which is smooth and burr free. The sharpening members will make a proper bevel edge angle no matter what direction the device is held.

Abstract: A grinding wheel assembly for grinding and sizing workpieces such as an elastomeric power transmission belt is provided that comprises a wheel member including an abrasive, annular outer surface, a pair of annular flange members detachably connectable to opposing sides of the wheel member for providing opposing annular flanges that circumscribe and radially extend beyond opposing sides of the outer surface of the wheel member, wherein each of the flanges includes an inner abrasive surface for sizing a workpiece which is substantially coarser than the abrasive surface on the outer surface of the wheel member.

Abstract: A hand held skate blade sharpening tool has a rotatable cylindrical member having an outer sleeve made of a sharpening stone material retained within a channel-shaped body member. Removable screws threaded through the body engage bearings rotatably mounted on the outer ends of the cylindrical member to limit longitudinal movement of the stone within a channel of the body member. The body member has an access slot extending radially from the stone. Elongated guides projecting upwardly adjacent the slot are transversely spaced at a distance substantially the same as the width of the skate blade to guide and limit lateral movement of the blade within the slot. Grooves in the bearings are aligned with the slot whereby the bearings do not interfere with movement of the tool along the skate blade. A transverse groove interrupting the slot and guides is open to the channel exposing the stone sleeve.

Abstract: A portable sharpener for blades having a main portion with at least one cutting edge and at least one end portion having at least one straight or slightly curved cutting edge, the sharpener comprising a housing for a selectively positionable abrasive file having at least one abrasive surface; a first guide to guide the blade against the abrasive surface; a housing for recovering the blade filing; and a removable crutch mounted on the body and provided with a second abrasive file and with a second guide for the blade, the crutch allowing the end portions of the blade to be sharpened.

Abstract: A knife sharpener having a specially configured sharpening groove for sharpening knives or the like to a particularly narrow and sharp edge. The sharpener comprises a body member having a rectangular extension which has a recess for engaging the sharpening blades. The body member has grooves therein for engaging support members, one of which acts as a guard from the knife sharpening activity. A second embodiment includes the supports being angled so as to place the knife sharpener at an angle for easy access thereto. The blades are substantially triangular in shape wherein the corners of each blade are rounded, all having equivalently-sized radii. The blades are detachably attached to the body member within the recess so that the blades can be rotated or flipped for exposing additional and fresh sharpening edges.