Abstract: The invention relates to a method of machining a face (3) of an ophthalmic lens (1) with a main machining step in which the position of a machining tool (8) is synchronised with the angular position of the ophthalmic lens (1) which is rotated around an axis of rotation (4) that is transverse to the face (3), in order to provide the face with a machined surface that is asymmetrical in relation to the axis of rotation (4) of the ophthalmic lens (1); and a complementary machining step in which a recess (22) is machined around the axis of rotation (4) of the lens (1).

Abstract: An indirect cooling system for a rotating cutting tool uses a cryogenic coolant that is delivered to a cavity formed on the back surface of the cutting element, providing cooling near the cutting edge of the element. Because the total flow rate of the working fluid is low (less than 0.08 Liters/min/cutting edge), the fluid can be safely vented to atmosphere from the cavity, and as a result, no specialized coolant recovery or ventilation equipment is needed. The cavity may be formed with fins to enhance the heat transfer between the cutting element and the coolant, and coolant may additionally be sprayed directly onto the exterior surface of the element to cool the tool-chip interface. The indirect cooling system may be used for hard to machine metals and composites, as well as the machining of conventional materials without the use of traditional cutting fluids.

Abstract: A reciprocating saw blade, for use in a portable power reciprocating saw including a chuck for releasably engaging the saw blade, includes a tang having an elongated axis and being engageable with the chuck for attaching the saw blade to the reciprocating saw. The saw further includes a blade portion having a cutting edge that defines a plurality of cutting teeth. The cutting teeth define a repeating pattern of successive groups of teeth. Each group of teeth is less than about a half inch in length, and includes a plurality of laterally offset teeth, at least one relatively high first tooth and at least one relatively low second tooth. Prior to tooth set, the at least one relatively high first tooth is at least about 0.002 inch higher than the at least one relatively low second tooth.

Abstract: A tool is provided, having a handle with a blade chamber defining a blade chamber cavity, a first locking element, and a second locking element that is user actuated, and a removable blade with a tang engageable in the blade chamber cavity and a working portion. A blade sleeve, is also provided, at least a portion of which is located on the tang.

Abstract: A metal cutting system with a tool holder, a shim, an insert with a top depression, a top piece and a clamp. A rake face cooling channel for fluid delivery is formed between the top piece and the depression in the insert. A primary discharge slot at the end of the rake face cooling channel delivers fluid from below the cutting edge of the insert. A second cooling channel for delivery of fluid to the flank face is formed between the insert and the shim or is formed between the shim and the tool holder with a portion of the cooling channel passing through the shim.

Abstract: A tangential cutting insert has three pairs of surfaces. A first pair has upper and lower surfaces, a second pair has front and rear surfaces, and a third pair has two side surfaces. The upper and lower surfaces and the side surfaces extend between the front and rear surfaces. A main cutting edge is formed at the intersection of the front surface with the upper surface. A front portion of the upper surface extends rearwardly from the main cutting edge and upwardly toward a central portion of the upper surface as seen in a side view of the cutting insert. The main cutting edge associated with the upper surface is curved and slopes downwardly toward each of the auxiliary cutting edges as seen in a front view of the cutting insert.

Abstract: In a system and method for controlling the length of a discrete segment of an elastic web, a wound off tension of the web is determined during unwinding from a wound roll. The unwound web is delivered to a processing station while being maintained in tension. A discrete segment of the web is transported away from the processing station for at least a time t wherein the discrete segment decreases in length to a recovered length. The recovered length is predicted based at least in part on the wound off tension and in response to the predicted recovered length, at least one of the following is controlled: 1) the speed at which the web is delivered to the processing station, 2) the tension in the continuous web as it is delivered to the processing station, and 3) the length of the discrete segment at the processing station.

Abstract: A shaving implement which includes a handle. The shaving cartridge includes a frame and a separable lubrication. The separable lubrication includes a shaving aid. The shaving cartridge is pivotable relative to the handle between a neutral position (see e.g., FIG. 1) and a rearward position (see e.g, FIG. 2), and the separable lubrication is pivotable relative to the frame between a forward position (see e.g., FIGS. 1 and 2) and a locked position. During normal shaving, the separable lubrication is rotated toward the forward position and can pivot relative to the handle with the frame. When the separable lubrication is in the locked position, the separable lubrication is located in a position away from the skin during normal shaving and the pivoting of the frame relative to the handle is generally limited, or altogether eliminated.

Abstract: To produce rotationally symmetrical surfaces of a workpiece (10), the rotationally driven workpiece (10) is subjected to rotational machining. For this purpose, a tool is used (12), whose blade (16) is advanced in a circular arc motion (f). The blade (16) takes the form of a coaxial helix in relation to the rotational axis (A1) of the tool.

Abstract: A powered dispenser tor dispensing individual sheet segments from a continuous roll of sheet material provided with spaced tear lines comprises a powered feed mechanism, a releasable, powered drive mechanism, a powered transfer mechanism, a pair of web sensing sensors, a capacitive sensing system providing automatic sensitivity adjustment, and control circuitry. A dual power supply system provides a mechanical lock-out functionality, and the control system is protected from electrostatic build-up on the surface of the feed roller. The web sensor, and an antenna plate of the capacitive sensing system, are provided on respective printed circuit boards mounted in overlying relation. Utilizing signals received from the pair of web sensors and the capacitive sensing system, the control circuitry senses the presence of a user to activate the powered drive mechanism, and prevents further dispensing of the sheet material until a previously dispensed segment is separated from the roll.

Abstract: A razor cartridge is provided with a skin engaging structure at the cap and/or guard surface of the razor cartridge. The skin engaging structure has an array of closely spaced elongated protrusions integrally formed with a substrate. In use, the protrusions produce a pleasant tactile sensation tending to reduce shaving discomfort. The protrusions are formed by closely packed molded flexible filaments that can be less than 0.25 mm wide and have spacing between adjacent protrusions less than 0.2 mm. The protrusions can have a density greater than 5 protrusions per mm2. The skin engaging structure can be molded from e.g. an olefin polymer. The substrate can be integrally formed with a housing of the razor cartridge.

Abstract: A razor, especially a safety razor, comprises a fluid delivery system including a pump (24) for conducting a fluid, such as a lubricant, from a reservoir (25) for application to the skin, and a control device (16) for actuating the pump (24) when the razor is brought into contact with the skin by a person holding the razor, and deactuating the pump (24) after a certain time of actuation, e.g. 0.1 to 2 seconds. The control device is arranged to ensured a delay of 1 to 10 seconds between successive actuations, and so that the pump is actuated only every second third or fourth shaving stroke.

Abstract: There is provided an exceptionally practical rotary cutting tool allowing the life of the tool to be prolonged. The rotary cutting tool has a plurality of helically shaped swarf discharge flutes (2) formed on a periphery of a tool body (1) from a leading end towards a trailing end, and a peripheral blade (4) formed on an intersecting ridgeline of a rake surface (3) of the swarf discharge flutes (2) and the peripheral surface of the tool body (1). A back taper part (B), on which an outside diameter (D1) of the peripheral blade (4) and an inside diameter (D2) of the tool body (1) gradually decrease from the leading end of the tool towards the trailing end, is provided to the leading end of the tool body (1).

Abstract: A book trimmer is provided. The book trimmer includes an edge trimming knife movable back and forth in a book travel direction and a conveyor downstream of the edge trimming knife. The conveyor includes a reciprocating section movable back and forth in the book travel direction receiving books trimmed by the edge trimming knife. A method for trimming a book is also provided.

Abstract: A pruning clipper includes a pair of handles each having a distal end and a proximal end, with the handles being pivotally connected to each other close to the proximal ends of the handles. A first blade is connected to the proximal end of one of said handles, and a second blade is connected to the proximal end of the other handle. A chemical storage tank is connected to the distal end of one of said handles for storing a chemical to be selectively applied to vegetation. A bulb is connected to the proximal end of one of the handles, with the bulb being connected to the tank using a first connecting tube. A dispensing member extends along the side of one of the blades and beyond the blade to a dispersion point, and the dispensing member is connected to the bulb using a second connecting tube. As a result, the user will be able to cut the vegetation as desired using the clippers, and selectively dispense an herbicide as desired by the user.

Abstract: The invention concerns a machine comprising driving means (14, 16, 18) for driving sheets in a drive direction (F) through a processing zone (T), and processing means including a tool (53, 53?) and a counter tool (56), respectively, borne by a first and by a second transverse rotary support shaft (52, 54). Said processing means are designed to produce in the sheets cutouts and folds transverse to their drive direction. The counter tool has a substantially cylindrical surface having at least one working strip (57) which extends parallel to the axis of the second support shaft and is radially offset relative to the portions (58) of said surface which are adjacent to said strip, the latter being designed to cooperate with the tool to form a cutout or a fold in a sheet.

Abstract: A plastic cutlery item molded from a plastic material, such as polystyrene, having a metallic coating that imparts to this cutlery item the appearance of metal cutlery or silverware. In one embodiment the plastic cutlery or tableware items are molded using injection molding techniques, and subjected to a vacuum metallizing process in an individualized non-contiguous manner, where a thin metallic layer is deposited on at least one of their surfaces. The resultant items simulate the appearance of metal cutlery or tableware. In one embodiment of the invention the plastic cutlery or tableware articles are molded from a clear polystyrene resin and are coated with a thin stainless steel layer through vacuum sputtering deposition on only one of the sides. The abrasion resistance of the metallic coating can be enhanced by subjecting the articles to a post-metallizing holding period or by applying a clear protective overcoat.

Abstract: According to a chain saw braking system, engagement between a front end portion of a belt and a main body by an engagement member is released at the time of application of an impact. When a front end portion is pulled by the spring force of a compression coil spring, an elongate hole for protrusion is engaged with a protrusion to restrict a rear end portion from being moved in the same direction as the front end portion. Thus, it is possible to strongly tighten a drum by the belt to thereby reliably stop the movement of a chain. With this arrangement, the chain can be prevented from being damaged when a chain saw is accidentally dropped onto the ground due to an impact applied thereto.

Abstract: According to one embodiment, a machine tool for machining a workpiece includes: a main spindle that holds the workpiece to rotate the workpiece around a axis; a tool that is configured to machine the workpiece by working together with the main spindle; a headstock that rotatably supports the main spindle and includes a leading-edge portion and a base-end portion; and a bed that supports the headstock by a sliding bearing at the leading-edge portion and rolling bearings at two points of the base-end portion so that the headstock is movable along an axial line of the main spindle, wherein the two points of the base-end portion are spaced apart from each other in a direction orthogonal to the axial line of the main spindle.

Abstract: A thin section preparing apparatus prepares a thin section from an embedded block having a biological sample embedded and carries the thin section. The thin section preparing apparatus includes a cutter, an approaching and separating mechanism, a carrying mechanism, a moving unit, a sliding mechanism and a control unit. The cutter slices the block at a pull angle. The approaching and separating mechanism relatively moves the block and the cutter along an approaching and separating direction. The carrying mechanism having a carrying body is arranged as one end side is near a nose, and the moving unit moves the body along a transport direction. The sliding mechanism relatively moves the block and the body along a moving direction.