Abstract: This disclosure describes systems, methods, and apparatus for a locking folding knife having a handle lock and a safety switch arranged around and rotatable around a pivot axis of the knife. In an engaged position the switch overlaps at least a portion of the handle lock and prevents it from moving into an unlocked position. A spring, such as a wire form spring, can be arranged within a pocket of the switch, and when the switch is moved between engaged and disengaged positions the spring can be compressed generating a rotational bias on the switch urging the switch toward either the engaged or disengaged position.

Abstract: A knife with a pressure indication means with a sensor which is actuated when the cutting edge is forced onto a material, a processing means receiving a signal from said sensor and sending a signal to a notification means indicating the pressure as soon as a predefined condition is met.

Abstract: A pencil sharpener assembly comprising a frame and a blade, the blade having an elongated sheet shape, one side of the blade being disposed with a blade edge, the frame being disposed with a pencil chamber, the blade being disposed along an axial direction of the pencil chamber and the blade edge of the blade being located in the pencil chamber, the blade being made of a ceramic material, the frame being disposed with a first positioning groove and a second positioning groove, the first positioning groove and the second positioning groove being oppositely disposed, a first end of the blade being inserted into the first positioning groove, and a second end of the blade being inserted into the second positioning groove. It has the advantages of being applicable to ceramic-made blades and the blade is not easy to fracture.

Abstract: A tool, such as a knife or a surgical instrument, is disclosed having a sharp edge, a first end and a second end. A connecting member connects the second end of the member with a handle, wherein the connecting member connects the handle at a fixed angle between 24° and 46° relative to the sharp edge of the member.

Abstract: A cutting tool includes a blade having opposing front and back edges and inner and outer ends and defining at least two cutting loops, each cutting loop having a sharpened cutting edge and extending from an opening at the back edge and sloping therefrom toward the front edge and outer end at a loop angle of between about 35 and 55 degrees, the cutting loops each also having a depth from the back edge of between about 0.2 inches and 0.75 inches; and a handle at the inner end of the blade.

Abstract: Provided is a razor cartridge having a new fixing clip mounting structure. Such a razor cartridge includes at least one razor blade having a cutting edge, a blade housing configured to accommodate the at least one razor blade in a longitudinal direction, which is perpendicular to a shaving direction, and a pair of fixing clips configured to secure both ends of the at least one razor blade to be seated in the blade housing, wherein the blade housing includes a pair of side slits which are disposed at a forward position with respect to the at least one razor blade and configured to be open at a side end of the blade housing, and each of the pair of fixing clips includes a first leg portion and a second leg portion, wherein for each of the fixing clips, the corresponding first leg portion is accommodated in a corresponding side slit of the pair of side slits and the corresponding second leg portion is wrapped around a rear end of the blade housing.

Abstract: The present disclosure relates to a releasable attachment comb (60) for a blade set (22) of a cutting head (20) of a hair cutting appliance (10), said attachment comb (60) comprising a supporting frame (62) comprising a first lateral grip bar (68), a second lateral grip bar (70), and at least one laterally extending supporting bar (64, 66) arranged between the first lateral grip bar (68) and the second lateral grip bar (70); a plurality of guide teeth (72) that define a skin contact front face (74); a plurality of snap-on mounting elements (78, 80); wherein the snap-on mounting elements (78, 80) are spaced away from the first lateral grip bar (68) and the second lateral grip bar (70); wherein at least one of the snap-on mounting elements (78, 80) is configured as a proximal snap-on mounting element (78) that is arranged on a first, proximal side (84); wherein at least one of the snap-on mounting elements (78, 80) is configured as a distal snap-on mounting element (80) that is arranged on a second, distal side

Abstract: A pair of scissors has two shears movably mounted to pivot about an axis, each of the shears having a blade (3) extended by a shank (4, 5). The first shank (4) is covered by a grip in the form of an elongate body that is provided with a lateral opening (8) and that is suitable for being inserted transversely between two fingers of a hand to a position where it bears against the crook where the two fingers meet. The second shank (5) is terminated by a half-ring forming a cradle (10) for receiving the thumb. The first shank (4) is a bent shank. The lateral opening (8) in the elastically deformable grip extends into the inside of the grip forming a sheath into which the first shank (4) can be inserted in adjustable manner by slidable movement. The end of the cradle (10) that is closer to the first shank (4) is bent towards the inside of the cradle to form an abutment (11) for retaining the thumb.

Abstract: A power tool includes a motor; an arbor attachment mechanism that includes a shaft configured to be driven by the motor about a spin axis. The arbor attachment mechanism is configured to hold a blade onto the shaft. The power tool includes a blade size limiter that is configured to prevent attachment of a blade with a radius greater than a predetermined size, and is configured to be connected to the arbor attachment mechanism independently of the attachment of the blade to the arbor attachment mechanism and such that the blade size limiter is at a distance from the spin axis of the shaft.

Abstract: A dispenser for dispensing sheet product is provided including a housing that defines an interior configured to accommodate a source of sheet product and an outlet through which the sheet product is dispensed. The dispenser also includes a first roller that is rotatable and disposed in the housing. A portion of the sheet product is designed to be in contact with the first roller prior to being dispensed through the outlet. The dispenser also includes a knife drum that is rotatable and configured to cooperate with the first roller to dispense the sheet product. The knife drum includes a knife configured to cut the sheet product into individual sheets. The dispenser also includes a spring assembly that may be configured to bias the knife drum toward a predetermined position during rotation of the knife drum.

Abstract: Methods of separating and positioning discrete articles formed from a continuous length of articles are provided. The methods may comprise the steps of receiving a first portion of the continuous length on a first head in a receiving position of an orbit about a first rotational axis and receiving a second portion of the continuous length on a second head in the receiving position of the orbit about the first rotational axis. The methods may comprise providing a laser system configured to produce and direct a laser beam, and ablating a portion of the continuous length of articles intermediate the first head and the second head with the laser beam to separate the first portion of the continuous length of articles from the second portion of the continuous length of articles, thereby forming a discrete article on the first head.

Abstract: A power saw includes a base plate, housing, and spring. The base plate is configured to move along a workpiece, and includes a pivot mount and a first retaining member defining an arcuate slot. The housing is configured to receive a cutting tool, includes a pivoting member and a second retaining member, and has a center-of-mass located between the pivot mount and first retaining member. The pivoting member is engaged with the pivot mount to pivotably mount the housing thereto. The second retaining member is received in the slot to guide a pivot of the housing. The spring is engaged between the base plate and housing, and is exerts a spring force acting against the weight of the housing such that a resultant force is sufficient to enable engagement of the cutting tool with the workpiece.

Abstract: The present invention is an attachable rolling plate assembly which can be attached as a single unit to a portable cutting tool to facilitate the safe rolling movement of the portable cutting tool on the workpiece. The invention comprises a frame assembly formed from a single piece of molded material such as fiber enriched plastic having a pair of oppositely disposed longitudinal sidewalls with stabilizer ribs extending therefrom, and a flat base portion having and opening through which a saw of a power saw extends. The plate has front and rear fastening members to retain a plate of a power cutting saw onto the rolling plate assembly. The invention also includes a cutting guide assembly to facilitate a straight cut, reduce torsional rotation of the saw blade and reduce kickback of the saw.

Abstract: A method for automatically cutting off a material passage part while reducing manufacturing cost and cycle time. This method includes preparing a cutting device capable of moving in an automatic control coordinate system, placing the molded article without fixing the molded article, detecting a shape of the molded article by a sensor, acquiring a position of the material passage part in the coordinate system, determining a position of a cut spot in the material passage part as a target position in the coordinate system, moving the cutting device in the coordinate system and disposing the cutting device on a work position for cutting the cut spot, and cutting the cut spot by the cutting device arranged on the work position.

Abstract: A food grade safety knife includes a safety knife blade, a handle, and a stepped region adjacent the juncture therebetween. The handle is defined by a pair of spaced apart major surfaces that include an enlarged palm portion; a flared end distal to the enlarged palm portion that anchors the safety knife blade, and a neck region intermediate between. The stepped region has a thickness greater than the enlarged palm portion. The stepped region rises in a plurality of discrete steps from the generally planar major surfaces and generally increases in thickness with increasing distance from the enlarged palm portion to a maximum thickness most nearly adjacent to the safety knife blade. At least one of the plurality of steps within the stepped region is provided with at least three generally linear segments each angularly offset from adjacent ones of the at least three generally linear segments.

Abstract: A seed potato cutting system includes a cutting roller unit with an endless roller chain, having a plurality of parallel roller sets, each roller set including a plurality of cylindrical rollers on a common axle, with lateral gaps between adjacent rollers, configured to convey seed potatoes toward a distal end of the roller chain. A plurality of pairs of parallel upright blades are disposed at the distal end, the blades having common rotational axes and a cutting edge that passes within a lateral gap between rollers, each pair of blades having a common adjustable blade gap therebetween.

Abstract: A self-defense pocket knife with handle of suitable proportion to be grasped in closed fist and a conveyance system configured for the emergency manual conveyance of a blade from a position for storage to a position for use without requiring the user to appreciably alter or compromise grip upon the handle during the course of such conveyance.

Abstract: There is provided a method of making a tool blade, in which a backing strip is provided, binding material in powder form is cascaded onto the backing strip, abrasive particles are provided and the binding material powder is heated by laser beam to form a binder layer which binds the abrasive particles to the backing strip. The laser beam is used to form discrete regions of binder layer as teeth. The binding material is typically braze material. A blade made according to the method is also provided.

Abstract: A safety cutting device includes a slidable insert that moves longitudinally within a cavity of a housing. The slidable insert has a cutting blade attached and moves within the housing from a safe position in which the blade is covered to an exposed position for cutting. The safety device has a release button with a first lock configured to lock the insert in the exposed position upon moving before actuation of the release button, and a second lock that maintains the insert in the exposed position after actuation of the release button but before the button is release. A biasing member automatically retracts the blade when the release button is actuated and released.

Abstract: A wheel cutter for cutting a flexible glass substrate and a cutting method thereof are provided and the wheel cutter has a first disk surface and a second disk surface; a circumferential cutting edge formed by the first disk surface and the second disk surface extending outwardly and intersecting each other; a central shaft hole; and a hollow region connected to the central shaft hole; a plurality of recesses distributed on the circumferential cutting edge and communicating with the hollow region; wherein the hollow region is a double cone structure configured to allow cleaning an inside of the wheel cutter.