Abstract: A hand tool is formed of a handle and a removable tool part . The tool has a protruding section and a first magnet at the end of the protruding section. The handle has a bore with a second magnet. The tool is assembled by inserting the protruding section into the bore so that the first magnet contacts the second magnet. Ramps are provided on the tool part and handle; the tool is disassemble by rotating the tool part relative to the handle. Thanks to the ramps, the magnets are separated : the tool part and the handle may then be pulled apart.

Abstract: The present invention is an electric pole saw featuring a novel saw powerhead mounting bracket assembly comprising interlocking bracket halves molded to conform to the opening and contours of the saw provided between the rear handle, knuckle guard and main body of the saw, to control angular movement or twisting between the bracket-halves and between the powerhead and the bracket, and also utilizing single-point fastening means for fast and easy assembly of the bracket without tools.

Abstract: An electric jigsaw (1) includes a main housing (2) containing a gear housing (10), a reciprocating rod (11) vertically projecting from within the gear housing, a saw blade (13) coupled to the rod via a coupling ring (12), and a transparent synthetic resin guard (14) provided at the lower front end of the main housing and the gear housing (10). The transparent guard includes a vertical optical path therethrough and is attached to the gear housing in such a manner as to be horizontally rotatable between a protective position for covering the coupling ring and an open position for exposing the coupling ring. Additionally included in the jigsaw is an insulating cover (15) assembled to the gear housing (10) within the main housing (2) and a downward oriented light-emitting diode (19) disposed at the bottom end of the insulating cover (15) directly above the transparent guard (14) when the guard is in its protective position.

Abstract: A sawdust-free wood cutting apparatus (10) comprises a guide (62, 72) for guiding a piece of wood (W) along a feed path having a cutting zone. At least one circular blade (18b) is mounted in the cutting zone and driven in rotation about an axis transversal to the feed path. The circular blade (18b) has a toothless circumferential cutting edge. A feeder (14, 16) advances the piece of wood (W) to be cut through the cutting zone at a linear speed substantially equal to a tangential speed at the toothless circumferential cutting edge of the circular blade (18b).

Abstract: The invention relates to an imaging member comprising an imaging layer and a base wherein said base comprises a closed cell foam core sheet and adhered thereto an upper and lower flange sheet, wherein said foam core sheet has a modulus of between 100 and 2758 MPa and a tensile toughness between 0.344 and 35 MPa, and wherein said upper and lower flange sheet has a modulus of between and 1380 and 20000 MPa and a toughness between 1.4 and 210 MPa.

Abstract: A wire chopper module for processing spent electrode emerging from an EDM system employs replaceable inserts that are also movable relative to the feed path of the electrode. Shifting the position of the inserts relative to the feed path of the electrode allows more than one portion of each cutting edge on the insert to be used. Each insert has more than one cutting edge and can be rotated and re-inserted to present a completely new cutting edge. Removable multi-edge inserts that are repositionable relative to the feed path of the spent electrode permit renewal of the cutting edges of the wire chopper module with increased frequency and reduced cost. The wire chopper module also incorporates a flywheel to increase the movement of inertia of the rotating cutting inserts as an aid in overcoming jams. Sharp cutting edges and increased rotational momentum improve the reliability of the inventive wire chopper module.

Abstract: A jig saw for more precise movement during cutting with a laser alignment system for projecting a marker onto a workpiece to align with a target line to be cut. The laser alignment system comprises a housing, a laser generator within the housing, an internal battery supplying the laser generator, a switch which is positioned within the housing and independent of the main switch to turn on and turn off the laser generator. By turning on the switch, the laser generator projects a laser beam onto the workpiece ahead of the blade in alignment with the plane of the blade. The operator only needs to align the projected laser line along a target line on the workpiece to attain the more precise cutting without concentrating his observation exactly ahead of the cutting blade.

Abstract: An apparatus for estimating a lifetime of a cutter for cutting a sheet comprising: a detector for detecting a value of a parameter representing a cutting resistance during sheet cutting; a comparator for comparing the detected value of the parameter with a predetermined reference value; and an output element for outputting a result based on the comparison.

Abstract: An optical source illuminates a portion of an animal nail, and an optical sensor receives light from the illuminated portion. A processor generates a signal level, and differentiates between a “quick” signal level range (arising from illuminated living tissue in the nail) and a “nail” signal level range (arising from illuminating a nail portion with no living tissue). An indicator informs a user when the signal level is in the quick or nail range, determining the location of living tissue within the nail. Source(s) and sensor(s) may be mounted on an animal nail clipper, with illumination by the source and collection of light for receiving by the sensor occurring at a position relative to a blade so that when the signal level is within the nail range and the clipper is actuated to cut the nail, cutting of the living-tissue-containing portion of the animal nail is avoided.

Abstract: An alignment device including a body having an alignment edge configured to guide a cutting device, an extension portion pivotal relative to the alignment edge, and at least one cutting-line indicator configured to be selectively positioned on the extension portion and configured to indicate a cutting line for the cutting device. In some embodiments, the alignment device may include a plurality of pitch selectors configured to indicate a plurality of different angles, including a first pitch selector indicating a first angle. The body further may include a level indicator configured to identify whether a plank is at first angle when the first pitch selector is selected and the body is positioned in a pitch measurement position on the plank.

Abstract: A high-speed shear for cutting a rolled strip to a length and including first upper and second lower blade drums carrying, respectively first and second blades and rotationally connected with each other, drive elements located in front of and behind the first and second drums for advancing the rolled strip, under longitudinal tensioning, through a blade gap between the first and second drums, and support rollers supporting the tensioned strip and providing for lifting of the strip before passing of the second blade and for lowering the strip before passing of the first blade through the blade gap.

Abstract: A fine-adjustment mechanism for making small adjustments to a cutting angle on a miter saw. The mechanism is used in conjunction with an apparatus that includes a base having at least one recess, and a turntable that supports a cutting tool is rotatably mounted to the base. An angular-adjustment lever is pivotally mounted to the turntable. The angular-adjustment lever includes a first insert proximal to the turntable. The first insert is capable of engaging at least one recess. The fine-adjustment mechanism is mounted to the turntable and includes a fine-adjustment lever pivotally mounted on the turntable. The fine-adjustment lever may include a plurality of notches. A second insert having an opening therethrough is supported by the fine-adjustment lever and adapted to engage at least one recess of the base. A threaded rod supported by the fine-adjustment lever extends through the opening in the second insert. A latch holder may be attached to the fine-adjustment lever.

Abstract: A head for a line trimming apparatus includes a body member and a detachable cover that may include a replaceable insert for connecting the head to a drive shaft of a line trimming apparatus. The body member includes opposed openings and a filament-receiving channel for inserting an elongated flexible cutting filament into the head for retention thereon. A spring-biased clamp is supported on the body member and is engageable with the filament portion residing in the channel to releasably retain the filament connected to the head. An actuator button projects through an opening in the body member and is operable to be pressed to cause the clamp to release forcible engagement with a filament so that the filament may be removed and replaced. In one embodiment the clamp and actuator are an integrally formed part and the filament projects through openings formed in spaced apart arms of the clamp member.

Abstract: A vertical blind cut down apparatus has a head rail holding plate with a head rail opening for receiving the head rail. The vertical blind cut down apparatus also has a cutting die to receive the head rail. The cutting die is movable relative to the holding plate for cutting one end of the head rail. The vertical blind cut down apparatus further has a blind holder with a blind material opening. The blind holder receives the blind materials. A blind cutting device is movable relative to the blind holder and cuts the blind material extending through the blind holder. The vertical blind cut down apparatus also has a first movement transmission for moving the head rail cutting die and a second movement transmission for moving the blind cutting device whereby both the blind materials and the head rail are cut.

Abstract: According to one embodiment of the present invention, an electric knife is provided that includes a blade that is adapted to cut the pulp and shell of pumpkins and other fruits and vegetables but not readily cut the skin and flesh of humans. According to a preferred embodiment of the present invention, the electric knife also includes a shield that that is adapted to prevent fruit or vegetable matter from entering the housing of the electric knife.

Abstract: A method for producing a cutting tool such a twist grill, end mill, or the like. The method provides an unbonded assembly including a cylindrical core having ends and an elongate side surface covered partially or completely by a coherent, unsintered layer including ultra-hard abrasive particles for producing an ultra-hard material. The unbonded assembly is subjected to elevated temperature and pressure conditions at which the ultra-hard abrasive is crystographically stable. The sintered product is then recovered that includes a cylindrical core and a layer of ultra-hard abrasive material bonded to the core, and the sintered product is worked to produce one or more cutting edges in the layer of ultra-hard abrasive material.

Abstract: A razor assembly is provided that includes a razor cartridge with one or more razor blades, a shaving aid body, a handle, and a linkage pivotally connected to the handle. The linkage is connected to the razor cartridge and the shaving aid body in a manner such that the razor cartridge and the shaving aid body are moveable relative to the handle. Movement of one of the razor cartridge or the shaving aid body in a first direction causes the other of the razor cartridge or the shaving aid body to move in a second direction substantially opposite the first direction. As a result, the positions of the shaving aid body and the razor cartridge are continuously adjusted to maintain the contact surface of the shaving aid body approximately co-planar with the cutting edges of the razor blades within the razor cartridge.

Abstract: An apparatus for cutting a product includes a conveyor assembly and a slitter assembly. The conveyor assembly conveys the product in a feed direction and defines a conveyance surface, on which the product is conveyed. The slitter assembly slits the product into strips as the product is conveyed in the feed direction. The slitter assembly comprises a plurality of cutting elements arranged in a V shape and overlapping one another in the feed direction, as viewed in a direction substantially normal to the conveyance surface. A chopping assembly is positioned downstream of the slitter assembly. The chopping assembly comprises an elongated blade, which moves in an elliptical cutting motion, such that it has a component in the downward direction to sever the strips of product, and a component in the feed direction to toss the severed pieces of product in the feed direction.

Abstract: Cutting machines with high-speed safety systems, and firing subsystems used in high-speed safety systems, are disclosed. The cutting machines may include a detection system adapted to detect a dangerous condition between a cutting tool and a person. A reaction system performs a specified action, such as stopping the cutting tool, upon detection of the dangerous condition. A fusible member or explosive may be used to trigger the reaction system to perform the specified action. A firing subsystem may be used to fuse the fusible member or fire the explosive upon detection of the dangerous condition.

Abstract: Setting device for sawblades, where a saw tooth (10) to be set is bent by contact with a ridge (17) on one among two conical detting rollers (14, 15), while the sawable is squeezed between two cydrical pressure rollers (12, 13) with axes which are parallel to the setting rollers but controllably displaceable, and the rotation of the setting rollers is adapted to the velocity of the sawblade by measuring the passage of the saw teeth past a measuring device and comparing with the angular position of the setting rollers.