Abstract: A clamping mechanism for a power tool which has a bayonet washer rotatably mounted on the end of a plunger so that the bayonet washer is rotatable between an open and a closed position. The bayonet washer is biassed towards the closed position by a torsion spring, but is latched in the open position when no operating member is positioned in the clamping mechanism. When an operating member is inserted into the mechanism through a slot in the bayonet washer and into engagement with the plunger, the washer is automatically released from the open position and rotates under the biassing force of the torsion spring to the closed position whereupon the operating member is locked into the power tool.

Abstract: A can opener includes an elongate body, a lever hinged to the body for relative pivotal movement about a horizontal axis between open and closed positions, and a turning knob at a front end of the body. The can opener includes a traction wheel supported for rotation by the turning knob, turning a can, a rotary cutting disk rotatable by the knob for opening the can while the can is being turned, and a mounting plate rotatably supporting the cutting disk. The mounting plate is movable by the lever to slide linearly between a rearward position corresponding to the open position in which the cutting disk is spaced from the traction wheel and a forward position corresponding to the closed position in which the cutting disk is close to the traction wheel.

Abstract: A knife holder for holding a knife head has a circular wrapper cutter with a blade rotatably mounted in the knife head for engagement with a lower cutter to cause lengthwise separation of a material web. The knife holder has a base body for positioning the knife head and is mounted to a knife holder bar. A tie bar moves the knife head between a resting position and a cutting position where an area of the blade is exposed and is operatively engaged with the cutter. A protective hood covers at least a portion of the circumference of the circular wrapper cutter and is movable relative to the circular wrapper cutter between an operating position where the blade is exposed and a protective position where the protective hood covers at least a side of the blade.

Abstract: A die stamping system in which an upper die moves downwardly toward and upward away from a lower die to stamp a workpiece, and in which a portion of the lower die is supported by at least one gas cylinder coupled to gas under pressure to cushion downward movement of the lower die portion and delay upward movement of the lower die portion. Each gas cylinder has a piston reciprocable within a vertical cylinder body. The piston has an upwardly extending piston rod for engaging the lower die portion. The cylinder body has a lower portion beneath the piston connected to the gas under pressure. A first passage connects an upper portion of the cylinder body above the piston to the lower portion of the cylinder body beneath the piston. A second passage connects the lower portion of the cylinder body to a tank. A third passage connects the upper portion of the cylinder body to the tank. First, second and third valves in the respective first, second and third passages control gas flow.

Abstract: A hand-lever device for a trimmer has a rotatably-operated main lever for operating a cable which is coupled to a driven member. A pulling stroke amplifying mechanism for amplifying the stroke of the cable pulled by the main lever is provided between the main lever and the cable. The pulling stroke amplifying mechanism is provided with a wire attaching portion to which a wire for pulling and releasing a cutter braking device is attached.

Abstract: A chain pipe cutter has a pair of pivotal handles that carry a non-extendable cutter chain. A first handle has a contact member secured to a lower part of the first handle in a pivotal relationship so as to adapt the contact member to an angle most suitable for contacting a power actuator rod. The second handle has a holder for a power actuator rod and a retainer for retaining the rod in a fixed relationship to the handle when the power is delivered to the rod. An arm retainer allows to temporarily retain the handles in a spaced-apart relationship prior to application of the power. A conversion kit is provided for retrofitting a conventional manual pipe cutter to a power actuated cutter.

Abstract: In order to achieve speed up of the piercing operation to form elongated forms in a thin sheet whose length is greater than the thickness and width thereof, a piercing apparatus is provided with an upper roller die having a first cutter roller held between press rollers so that the first cutter roller protrudes at the outer peripheral portion thereof, from the outer peripheral surfaces of the press rollers, a lower roller die having recesses between two second cutter rollers and engaging with the outer peripheral portion of the first cutter roller. The thin sheet is continuously fed in the lengthwise direction thereof into the engagement portion between the upper and lower dies. When a sliding cutter is engaged in the recesses formed on the first cutter roller, the thin sheet passing through the engagement portion is cut to form elongated holes.

Abstract: A razor that is configured for selectively shaving the head or face and wherein a body member has an upstanding finger engaging means whereby a body member may be retained in relationship to the fingers of the user, and which retains in releasable or integral fashion and in pivotable or non-pivotable relationship a razor blade, and wherein the razor may be selectively used to shave the head of the user or when taken off the finger, may be used to shave the face of the user in conventional fashion.

Abstract: A device for removing pre-cut portions of a material sheet (10) comprising scores or the like. The sheet is placed on the cutting surface (2) of a die (1) so that the pre-cut portion (11) covers an opening (3) in the die (1). The opening (3) in the die (1) comprises at least one recess (4) extending radially towards the axis of the opening (3) and communicating therewith. The recess (4) is shaped in such a way that the head (7A) of a blade (7B) forming a resilient abutment member is retained therein. The blade (7B) yields to the pre-cut portion when a cutting member (12) passing through the opening (3) in the die (1) exerts pressure thereon. The free end of the blade (7B) prevents the discarded portion (11) from returning after each cutting step.

Abstract: The strap processing apparatus comprises a first carrying conveyer for carrying a bundle of a predetermined number of layered valuable papers sealed with a sealing strap, a second carrying conveyer and an upper conveyer for bending the bundle of layered valuable papers carried by the carrying means thereby to form a clearance between the upper surface portion of the layered valuable papers and the sealing strap, a pair of strap catchers for clamping a portion of the sealing strap lifted apart from the upper surface portion of the layered valuable papers with a predetermined distance maintained between the pair of strap catchers each other, and a cutter for cutting an intermediate portion of the sealing strap clamped by the pair of strap catchers.

Abstract: A wire stripping apparatus for stripping insulation material (48) from an insulated electrical conductor (50) includes a first stripping blade (40) having a first cutting tip configuration (44, 52, 56, 60, 64, 68, 72) and a second stripping blade (42) supported in opposing relation to the first stripping blade (40) having a second set of cutting tip configuration (46, 54, 58, 62, 66, 70, 74) different from the first set of cutting tip configuration (44, 52, 56, 60, 64, 68, 72) encompasses and uniformly strips an insulation slug from a periphery of the insulated conductor (50).

Abstract: A system to accurately align relative to each other a pair of rotary die cylinders having co-acting cutting blades formed by integral lands projecting generally radially outwardly from each cylinder. Each cylinder has an alignment groove formed therein such that when the cutting blades of the die cylinders are in alignment, the alignment grooves of each cylinder are aligned and define a slot between the cylinders which is constructed to receive an alignment pin. To initially align the die cylinders relative to each other, they are free to move both axially and rotatably relative to each other to permit the die cylinders to fully engage an alignment pin or pins inserted between the cylinders. Preferably, an alignment slot is provided adjacent each end of each cylinder with each slot constructed to receive a separate alignment pin to more accurately register or align the die cylinders relative to each other.

Abstract: A shaving apparatus having an external cutting member and an internal cutting member, which is rotationally drivable with respect to said external cutting member, which external cutting member is formed with a circular groove having a bottom wall and an upright inner and outer wall, the bottom wall and the outer wall having at least a plurality of slit-shaped hair-entry apertures oriented substantially radially, the inner wall and a small part of the adjoining bottom wall further forming an uninterrupted guard wall which precludes the entry of hairs. To improve the hair-catching performance the guard wall has grooves which are oriented substantially radially and which are disposed in line with the slit-shaped hair-entry apertures.

Abstract: A spacer element having a first material and at least one second material. The at least one second material has a specific gravity less than that of the first material, and the first material is integrated with the at least one second material. Also contemplated is a rotary knife arrangement having such a spacer element.

Abstract: A knife for drawing along a cutting channel in a template defining a puzzle piece outline, so as to cut an underlying workpiece along lines conforming to the shape of the puzzle piece outline to form a puzzle piece from the workpiece. The knife includes a handle portion, a hollow nose portion mounted on the handle portion, a blade mounting portion contained by the nose portion and rotatable therein and extending distally therefrom, and a cutting blade mounted on the blade mounting portion and extending distally therefrom. The cutting blade includes a leading edge, a longer trailing edge, and a cutting edge extending therebetween. In its preferred form the knife includes a shield that is disposed forwardly of the leading edge of the cutting blade and extends along at least a portion of the length of the leading edge of that blade.

Abstract: The stripping tool for removing the insulations of single- or multicore electrical cables provided with multiple layers of insulation has two trough-shaped jaws (4, 5), which are hinged together and can pivot toward one another. In a common tool end face, the two jaws (4, 5) have two stripping blades (6, 7) that extend transversely to the longitudinal direction of the jaws, the blades having cutters (8, 9), which are disposed with different gap spacing (S1, S2) from one another, for stripping the outer cable insulation and an inner cable-core insulation. At one jaw (4), a cutting blade (10) is held on the inside so as to be displaced in a guide, the blade extending in the longitudinal direction of the jaw and being extendable out of the tool end face opposite the blades (6, 7) into a functional position for separating insulation fibers (3) between the outer and inner insulations.

Abstract: A shingle trimming tool comprises a stationary and and a movable blades with edges. When a manually operated lever is lowered, the movable blade is mounted to reciprocate towards a closed position with the edges in contact and returns to an open position. The blade moves with a sliding action in which the reciprocating edge is driven into confrontation with the stationary edge to pinch work between the blades. When the lever is raised, then the movable blade slides back to an open position. The fixed blade and a pair of matched bell cranks are supported by a frame. The movable blade is supported by the bell cranks which hold the sharp edge of the movable blade parallel to the sharp edge of the lower blade during the entire reciprocal path traversed from open to closed position and back to the open position. The lever is connected to links provides leverage to force the movable blade down into contact with the stationary blade.

Abstract: A miter circular saw includes a base on which a workpiece is placed, a tiltable saw blade assembly mounted on the base, and a work support fence that includes a fixed element with a first support surface and a movable element with a second support surface, both of which are mounted on the base for supporting the workpiece during cutting. The movable element is hinged to the top end of the fixed element to allow the movable element to pivot between a raised position, above the fixed element, and a lowered position. In the raised position, the movable element engages the fixed element so as to fix the movable element and prevent it from inadvertently falling rearward into the lowered position. In the raised position, the movable element places the second support surface flush with the first support surface of the fixed element.

Abstract: The present invention provides a wire saw for use in cutting works of electronics materials or optical materials and a method for manufacturing the same, said wire saw having the following characteristic features. Namely, onto a high-strength core wire 2, abrasive grains 3 having a grain size not smaller than two-thirds the thickness of a layer of resin bond 4 on said core wire 2 but not exceeding a half the diameter of said core wire are fixed with said resin bond, said resin bond containing a filler having a grain size smaller than two-thirds the thickness of said resin bond layer. The thus structured and arranged wire saw has an improved efficiency and precision in cutting. The wire saw can be manufactured readily by using an enamelling oven.

Abstract: A resilient scoring rule for a rotary cutting die produces a creased or indented line in cardboard or paperboard along which line the board is subsequently folded when formed into a final product, such as a container. The scoring rule has a longitudinally extending, centrally disposed projecting web and opposed, cantilevered, symmetrical inwardly directed left and right ears having ends generally adjacent the central web. A pair of outwardly extending flanges raise the edge adjacent regions of the rule off the cutting die surface and function as mounting features which cooperate with staples or other retaining devices. An alternate embodiment scoring rule includes a pair of center projections or ribs flanked by a pair of cantilevered ears.