Abstract: A folding utility knife with a blade lock and release mechanism is provided, and the knife comprises: a handle pivotally connected to a blade holding compartment, the handle comprising at least two side walls forming a space, the space of the handle is designed to encase at least a portion of the blade holding compartment during a folded position, the blade holding compartment comprising at least one side wall having at least two internal cavities, the first cavity for holding a blade with at least two indentations, at least a portion of the blade holding compartment designed to be situated within the space of the handle during a folded position, the blade holding compartment comprises a front end, a rear end and a faceplate for covering the internal cavities, the front end of the blade compartment holder and at least a portion of the faceplate forming an opening at the front end of the blade holding compartment which allows a portion of the blade to protrude from the blade holding compartment; and a blade lo

Abstract: The invention concerns a blade holder for smoothing and planing off a substrate comprising a handle, a receiving means including a receiving space for a blade, wherein the blade has a larger blade side surface and a narrow side which is at the rear in a cutting direction and which has a cutting edge, and a positioning aid for positioning the blade holder relative to the substrate, wherein the positioning aid includes a spacer device, by means of which the blade can be arranged in a spaced position in the receiving means in such a way that it can be positioned in spaced relationship with the substrate with its cutting edge for processing the substrate. The invention further concerns a method and a blade for the blade holder.

Abstract: A tool includes an elongated handle with an end recess and a side notch for latching, and a plurality of different replaceable heads. Each replaceable head includes an elongated rectangular section shaped to fit stably into the recess for providing torsional and lateral support, an operative end, and a latch releasably engaging the side notch to retain the head in the recess. The different heads can include different operative ends with structure for providing different operative functions, such as a head with oppositely-positioned partially-shielded blade tips and/or with different blade throat sizes, a head with pizza-cutting wheel, a head with hammer or wrench feature, and the like.

Abstract: A food mincer assembly comprises a handle assembly, a retractable blade cover, and a plurality of blades. The handle assembly has a first side and a second side. The first side has a first through hole and the second side has a second through hole. The retractable blade cover has a cover portion, a lock, and a connecting arm. The connecting arm attaches the blade cover to the handle assembly. The lock secures the blade cover in a first position or a second position. The plurality of blades attach to the handle assembly. The first position of the retractable blade cover covers the plurality of blades. The second position of the retractable blade cover exposes the plurality of blades.

Abstract: A compact utility knife includes a blade holder slidably connected to a handle. A trapezoidal utility blade detachably mounts to the blade holder via a blade lock mechanism. A slide lock mechanism selectively retains the blade holder in its extended or retracted position relative to the handle. When the blade holder is extended, the blade holder and a majority of the blade extend forwardly of a forwardmost point of the handle. Extending the blade holder significantly increases an overall length of the knife such that the knife is comfortable to use when in the extended position and longitudinally compact when in the retracted position. The knife includes a blade lock mechanism. An aperture in the front of the handle creates a gap between the blade and the handle to discourage debris on the blade from transferring to the handle when the blade is retracted.

Abstract: A utility knife includes a handle base and a neck connected to the handle base for pivotal movement relative to the handle base between a closed position and an open position. The knife also includes a utility blade holder slidingly carried by the neck for sliding movement relative to the neck between a retracted position and an extended position. A utility blade is carried by the blade holder such that movement of the utility blade holder between its extended and retracted positions moves the utility blade between an exposed position in which a cutting edge of the blade is exposed, and a protected position in which the cutting edge of the blade is protected by the neck.

Abstract: A utility knife having a knife body, a movable blade holder inside the knife body for slidably moving a flat blade and a blade retaining arm selectively engageable with the blade for removably retaining the flat blade on the blade holder, and a blade release button engageable with the blade retaining arm for disengaging the blade retaining arm from the blade. The blade release button is slidably mounted in the knife body and movable in a direction substantially parallel to a major plane of the flat blade such that sliding the blade release button moves the blade retaining arm to disengage the blade retaining arm from the blade.

Abstract: A safety razor handle assembly including a safety razor having a handle and a razor blade head. The assembly including an elongated body portion, a hand gripping portion affixed to one end of the elongated body portion, and a safety razor engaging portion affixed to the other end. The razor engaging portion engaging the handle of the safety razor so that the handle of the safety razor extends axially from the elongated body portion and the blade head of the safety razor extends laterally beyond the safety razor engaging portion.

Abstract: A knife system for providing efficient replacement of a knife blade. The knife system generally includes a body, a lever pivotally connected to the body, a collet connected to the body, and a shaft connected between the lever and the collet. When the lever is in a closed position, the shaft applies tension to the collet resulting in frictional engagement with a blade within the collet. An illuminating unit is preferably positioned within the body directing light towards the blade within the collet to illuminate a work area.

Abstract: A blade release mechanism for a folding utility knife is provided, and knife comprising: a handle comprising at least two side walls forming an internal space; a blade holding compartment connected to the handle, the blade holding compartment comprising at least two side walls, a first side wall having a cavity for holding a blade, a second side wall having a cavity for holding a blade release device, at least a portion of the blade holding compartment is designed to be situated within the space of the handle during a closed position, the blade holding compartment comprising an aperture leading from the cavity on the first side wall to the cavity on the second side wall; and a blade release device comprising a slidable portion having first and second opposing sides and at least one spring, the device comprises a blade contacting portion situated in the cavity of the second side wall and adapted to fit through the aperture and contact a blade during a locked position, and the first spring is extended to secure

Abstract: A method and apparatus of removing hair from the back, shoulders and arms of a man utilizes a device comprising a comb having teeth on a lower end and a blade embedded in the teeth so that a lower active edge of the blade does not reach a lower edge of the teeth and a s result there is no exposed blade and no skin irritation or safety concerns. A rigid or semi-rigid one-piece elongated handle, a proximal end of the handle having a channel shaped to slidably receive the upper end of the comb, the proximal end also having a lever pressing against the comb to hold the comb securely to the proximal end of the handle, the lever capable of being bent to release the comb. The device has a center of gravity approximately one-third of the way down the handle from the proximal end of the handle.

Abstract: A trimmer head wherein the driveline of the power tool is connected to a core member. A spool is mounted to the core member and directly driven by the core member. A housing is mounted for axially sliding on the core member and a spring urges axial movement of the housing relative to the core member. Interlocking structure on the spool and housing produces interlocking for common rotation of the spool and housing responsive to urging by the spring. Release of the interlocking structure is affected by opposing said spring urging. Desirable additional features include selective alternate positioning of the spring for automatic and manual only release of said interlocking and a line loading assist provided by a tubular post through the spool alignable with housing eyelets for threading line through the eyelets and spool and winding thereof onto the spool by manual turning of the spool relative to the housing.

Abstract: A spatula having a body with a top working surface and a bottom surface is provided. The spatula body also includes a first end and a second end opposite to the first end. A handle is mounted to the first end of the body and the body has a first mounting member depending from the spatula body proximate the second end of the spatula body. The mounting member has an interior for receiving a mounting portion of the spatula blade and a second open end opposed to the first open end. The spatula body includes an opening in the body for cleaning the mounting member. A blade is provided for the spatula. The blade has a front section having a top surface and a bottom surface. At least a first spring tab extends rearwardly of the front section. The spring tab has a concave surface for one of its top and bottom surfaces.

Abstract: The present invention generally provides a saw blade clamping assembly. The assembly has a main body, a clamping device, a rotating sleeve and a biasing device. The main body has a receiving slot for receiving a fixing end of a saw blade and an oblique and elongate hole communicating with the receiving slot. The clamping device has at least one clamping member passing through the oblique and elongate hole of the main body. The rotating sleeve encloses the main body and the clamping device. The biasing device is biased between the main body and the rotating sleeve.

Abstract: A surgical blade includes a handle with a recess sized to receive the proximal end of a blade assembly. The recess includes a notch as well as opposed facing distal ridges designed to engage elevated surfaces in the blade assembly to maintain the blade assembly and handle assembled. The blade assembly includes a blade portion and a fitting having a protrusion sized to be received in the proximal notch of the recess in the handle when the blade portion is assembled to the handle. The fitting also includes side faces having opposed elevated surfaces obliquely disposed so that they are engaged by the distal ridges within the handle recess. The fitting also includes an upwardly extending catch that engages a distal surface on the handle to assist in locking the blade assembly to the handle. The recess of the handle includes inner tapered surfaces.

Abstract: The invention relates to a hand jig saw having a chucking device for a tool that can be moved back and forth, particularly a jig saw blade (15), the device having a centering piece (18) firmly connected to a drivable rod (13), the centering piece having an axial insertion slot (26) for a shank of the tool and at least one clamping body (19), which can be displaced in a transverse channel (27) extending transversely to the insertion slot (26) and immerses into the insertion slot (26), for clamping the shank (153). For displacement, the clamping body interacts with a chucking cam (28) configured on a chucking sleeve (20), which can be rotated relative to the centering piece (18), is disposed concentrically thereto and spring-loaded in the direction of rotation.

Abstract: There is provided a reciprocating saw blade having a tapered tang stem. The tang has a tang portion with at least three outer edges and a stem portion with at least three outer edges. The profiles of the tang portion and particularly the stem portion are such that they facilitate the effective and efficient engagement of the saw blade with any of numerous different keyed or keyless chucks of reciprocating saws. The tang/stem profile also advantageously provides for increased strength for resisting failure and/or fatigue stemming from a cutting force applied to the saw blade during use.

Abstract: A hand held cutting tool is provided for use with at plurality of different tool elements each having a two-sided shank portion of distinct longitudinal profile. The hand held cutting tool is described as comprising: (a) a barrel portion defining an equal plurality of longitudinally extending channels therewithin, with each said channel having a complimentary outline shape and otherwise dimensioned to receive one of said shank portions therewithin in close fitting relation, with a first side of said shank portion positioned adjacent the base of said channel; (b) one or more housing means mounted on the barrel portion for selectively contacting said shank portion remote from said first side to retain the respective tool element in mated held-fast relation within each said channel; and, (c) a handle portion attached to said barrel portion.

Abstract: A tool system is presented. The tool system includes a tool body sized and dimensioned to fit comfortably in a human hand, and includes a plurality of interchangeable tool cartridges. Some of the tool cartridges include a tool bit cover capable of remaining in a closed, locked position sheathing a tool bit. Once installed, the tool bit cover can be unlocked via actuation of a trigger disposed on the body of the tool or on the cartridge. Preferably, the tool bit cover unsheathes the underlying tool bit due to pressure or force of a work surface.

Abstract: A cutting tool configured to cut packaging. The tool includes a handle and a blade having a cutting portion. The blade is affixed to the handle with the cutting portion extending outwardly from the handle. The cutting portion of the blade resides inside a retractable sheath that is movable between a blade guarding position and a blade exposing position. The sheath is coupled to the handle by a biasing assembly that biases the sheath into the blade guarding position whereat the cutting portion of the blade is received completely inside the sheath. The sheath retracts to the blade exposing position when the sheath is pressed against the packaging with sufficient force to overcome the biasing force applied thereto by the biasing assembly. When the sheath is retracted, the cutting portion of the blade is placed into contact with the packaging against which the sheath is pressed.

Abstract: A moss removal tool includes an elongate handle that has a first end and a second end. The first end has a slot therein that separates the handle into a first portion and a second portion. A blade member has middle plate and a pair of lateral walls that are attached to and are coextensive with the middle plate. The blade member has front and rear edges. The rear edge is positioned in the slot and the front edge extends outwardly away from the first end. The blade member has an I-shaped cross-section taken perpendicular to a longitudinal axis of the blade member. A locking member is mounted on the handle and is configured to bias the first and second portions against the blade member to secure the blade member to the handle. The front edge may be moved along shingles to scrape moss off of the shingles.

Abstract: A cutter assembly for a rotary, shear-type shredder including a cutting-tool carrier having a body possessing a rotational axis, a shear cutting tool, and a generally radial, sliding-friction-type, heat-cycle, binding interface removably anchoring the tool to the carrier body. This assembly is made by (a) forming a projection on one of the tool and the carrier, (b) forming a generally complementary, projection-receiving void space in the other of the tool and the carrier, whereby the projection and the void space nominally have an interference-fit relationship relative to one another, (c) creating a temperature differential between the tool and the carrier to an extent producing a clearance-fit relationship therebetween, (d) following that creating, fitting the projection snugly inside the void space, (e) reducing the created temperature differential toward zero, and (f) thereby establishing a robust, linear-sliding-friction anchoring interface between the tool and the carrier.

Abstract: A knife includes a cartridge, a blade carried by the cartridge, a holder supporting the cartridge so that the blade projects from the holder, a shield for the blade, carried to be displaced relative to the holder and blade to expose the blade, for cutting. The cartridge includes a stem, and there are first side openings in the holder, and spring arms with catches thereon presented at opposite sides of the holder, via said side openings, to be manually pushed oppositely inwardly to allow slide out removal of the stem from the holder, there being additional manually graspable side openings sunk in opposite sides of the holder and spaced apart in a first direction, away from said shield, first side openings, and blade, the catches carried by the stem to protrude outwardly within two of the first side openings sunk in opposite sides of the holder.

Abstract: A reciprocatory saw and in particular a jigsaw comprises a pitman with a chuck means arranged for the releasable clamping of a saw blade. The chuck means comprises a movably mounted chuck jaw arrangement able to be clamped laterally against the saw blade shank, a wedge element arrangement adjacent to and for cooperation with the chuck means, a first spring means whose spring force acts downwardly on the inserted saw blade and a second spring means whose spring force acts on the wedge element arrangement downward. The wedge element arrangement is connected with the chuck jaw arrangement in a manner for the transmission of rotary movement and from the outside and is able to be shifted between a bottom clamping position clamping the chuck jaw arrangement against the saw blade shank and a top release position freeing the chuck jaw arrangement. The wedge element arrangement assumes an angular position turned in relation to the clamping position and is seated on a stationary holding face.

Abstract: A head assembly (1) for a rotary line trimmer includes a hub (2) and cap (3) screw threaded together. The hub (2) has an opening (7) for receiving a fastener for fixing the hub (2) to a rotating shaft of the line trimmer. The cap (3) has at least one aperture (6, 6?) therein for receiving a continuous length of cutting line (5, 5?). Opposing faces on the hub (2) and cap (3) cooperate to clamp each length of cutting line (5, 5?) therebetween when the cap (3) is screwed onto the hub (2).

Abstract: A saw blade clamping arrangement for a power tool including a drive shaft and a saw blade releasably interconnected with the drive shaft for reciprocating motion along a longitudinal axis. The saw blade clamping arrangement includes a support mechanism interconnected with the drive shaft, the support mechanism configured to selectively receive the saw blade in first and second orientations, an actuator mounted on the drive shaft and rotatable relatively to the drive shaft between an engaged position and a disengaged position, the actuator including first and second locking cam surfaces, and first and second locking members operatively associated with the actuator, and movable between a locked position that selectively locks the blade to the corresponding first and second orientations and an unlocked position that releases the blade. The first and second locking members including first and second follower surfaces driven by the respective first and second locking cam surfaces.

Abstract: A handsaw includes a handle, a blade removably mounted on the handle, and a press button pivotally mounted on the handle and detachably engaged with the blade to lock the blade on the handle and unlock the blade from the handle. Thus, the blade can be detached from the handle easily and rapidly by pressing the pressing portion of the press button, thereby facilitating the user replacing the blade. In addition, the concave face of the blade is rested on the convex face of the handle, so that the blade is supported by the handle rigidly and stably, thereby facilitating a user operating the handsaw.

Abstract: An apparatus for slicing fruit or other items is provided. The apparatus includes a top interlocking blade, a middle interlocking blade, and a bottom interlocking blade, each having an apex and two downward sloping edges of approximate equal length. The blades have slots at each side that fit into slots in a circumferential ring. The blades form a cutting surface within the circumferential ring that allows a lime or other item to easily cut into equal-sized sections.

Abstract: The present invention provides for a food peeler having a removable blade that includes an end received in a bore of the food peeler handle and a resilient member is mounted adjacent to the end of the blade and allows for the blade to be moved between a centered and offset position so that the blade may be removed and replaced. A tool is provided in order to remove and replace the blade.

Abstract: An electric cutting tool has a body, a chuck at an end of the body for attaching a cutting implement having a rear end including a recess, and a drive mechanism for driving the chuck to slide in reciprocation for operating the cutting implement. The chuck has a gap for receiving the rear end of the implement, an internal multi-part fixing mechanism for engaging the recess of the cutting implement in the gap, and an outer cylinder having an inner cam surface for acting upon the fixing mechanism. The cylinder is manually rotatable between a locked position in which the cam surface presses the fixing mechanism tight against the recess in the gap to fix the cutting implement in place and an unlocked position in which the fixing means is released from the cutting mechanism. The fixing mechanism includes two discrete balls.

Abstract: A handsaw includes a handle, a blade, and a locking member. Thus, the user only needs to drive the drive lever of the locking member to detach the snapping hook of the locking member from the snapping groove of the handle so as to detach the blade from the handle, so that the blade is detached from the handle easily, rapidly and conveniently, thereby facilitating the user mounting and replacing the blade.

Abstract: A system and method are disclosed for securing a blade to a blade post or handle base. A handle base is provided with a receiving port that includes a taper or dovetail configuration along a portion of each wall. The receiving port accepts a blade, and a cap is positioned within the exposed receiving port above the blade surface. The sides of the cap are secured within the dovetail sections along each wall of the receiving port and opposite securing ramps engage to secure the blade into position. The blade may be a keratome blade that is intended for opthalmic use, but the system and method can be used in connection with various types of opthalmic and non-opthalmic surgical knives.

Abstract: A structure of a knife includes an arcuate main body combined with two corresponding housings, an extension and a subordinate housing, a blade rack capable of holding different kind of blades releasably secured in the front end, a blade chamber in a middle portion with a slender magnet disposed thereunder to prevent the stored blades from sticky together, a roller and a press plate disposed at rear end for respectively making a track on the carpet being cut and to get ride the crepes in the carpet.

Abstract: A reciprocating saw is provided having a motor oriented within a housing for operably driving a saw bar and blade holder in a reciprocating motion. The blade holder has a longitudinal slot for receiving a saw blade, and a transverse aperture extending into the longitudinal slot for receiving a follower. A sleeve is pivotally mounted upon the body, and has a circum-axial cam groove formed therein cooperating with the follower. Rotation in a first lock direction urges the follower into the longitudinal slot for engaging the saw blade and rotation of the sleeve in a second unlock direction allows the follower to retract. A biasing member is included for biasing the sleeve in the first lock direction. The sleeve central bore is adapted to provide clearance for the follower such that the sleeve is permitted to axially translate relative to the body for assembly or disassembly of the blade holder.

Abstract: A handle to grip a broadhead arrow head enabling the handle and arrow head combination to form a knife suitable for hunting purposes. The handle includes a release button, a wrench, and a first and a second cavity. The first cavity accepts a shaft on the rear of the broadhead to aid in connecting the broadhead and handle. The release button activates a grip mechanism which locks the broadhead in the handle, while the wrench serves to aid in loosening or tightening the broadhead to the arrow shaft. The second cavity houses a sharpening guide which attaches to the handle and guides a sharpening rod at the correct angle to sharpen the broadhead.

Abstract: A tool is disclosed having a holder provided with a mounting opening for mounting on a drive shaft, which may be driven in oscillating fashion, and having further a fixture for mounting a working element. The working element comprises at least two holding sections, spaced one from the other in tangential direction to the mounting opening, and wherein a mounting plate is provided which is engaged by releasable securing elements that coact with the holding sections for clamping the working element against the holder.

Abstract: A tool fastening mechanism has a housing 2, in which a clamping opening 3 is embodied for receiving a tapering tool shaft clamping end 4 of a tool part 5. The clamping opening 3 tapers inward in the introduction direction of the clamping end 4 of a tool part 5, and furthermore the tapering sides are inclined toward one another in a plane extending perpendicular to the introduction direction, as a result of which the opening has a trapezoidal cross section, and the length of this cross section decreases away from the orifice of the clamping opening 3. The housing 2 furthermore has a transverse opening 7, which intersects the clamping opening 3 and in which a locking pin 8 is received.

Abstract: The present invention relates to a tool head fixer with pressing effect and of wide applications. It mainly comprises a shaft, a rotating socket and a stopping ring, the shaft having a insertion groove in the middle of its front end for inserting a tool head, a pressing bolt with a reposition spring is disposed at the circumference of the shaft, the shaft is inserted and disposed inside the rotating socket and is positioned by the stopping ring, the rotating socket having an acentric groove in corresponding to the pressing bolt, the rotating socket can activate the pressing bolt to press against or relieve the tool head, thus the tool head can be easily and conveniently changed and is firmly fixed, at the same time it is convenient to operate and can be widely used for various applications.

Abstract: An improved hair razor includes a cylindrical barrel forming the first part of an elongated handle having a razor blade holder joined to one end thereof, a tubular member forming the second part of the elongated handle having a finger ring formed therein, and an armature means connecting other ends the first part and the second part of the elongated handle in axial alignment, the armature means operable to allow the first part and the second part to rotate relative to each other and selectively lock the first part and the second part against rotation at a plurality of positions. The multiple positions available for the finger ring orientation lessens fatigue and stress of beauticians and barbers using the novel razor.

Abstract: An electric cutting utensil adapted to receive a variety of shaped attachments for cutting any of a variety of foods into fanciful shapes is disclosed. The cutting utensil includes a housing having an ergonomically designed external shape adapted to comfortably fit in a user's hand. The housing contains an electric motor having an output shaft connected to an attachment-receiving tip by an oscillation-generating coupling. The attachment-receiving tip includes a chuck lock assembly for receiving a plurality of variously sized and shaped interchangeable cutting heads. Each cutting head includes a projecting knife-like edge formed into a fanciful shape, such as a heart or a star, or any other suitable shape. The electric motor may be powered by one or more batteries contained within the housing, or by direct connection to an electrical outlet using a power cord. A base is provided for storage of the device and attachments.

Abstract: A blade clamping device for jig saws includes a drive shaft with a holder connected to a lower end of the drive shaft. A recess is defined in an outer surface of the holder for receiving a blade which includes two flat opposite surfaces. A C-shaped clamping member is pivotally connected to the holder by a pin wherein an angle larger than 90 degrees is clamped between an axis of the pin and a plane of the recess. A gap is defined between a pressing member that extends from an inside of the clamping member and the recess. The gap varies when the clamping member is pivoted at different positions so that a blade of different thickness can be clamped.

Abstract: A replaceable-blade knife useful as a carpet knife or utility knife, and having a handle with a spare-blade holder movably mounted therein, and a blade-clamping bar for securing an active cutting blade at one end of the handle. A locking means is provided to lock the holder in a protective closed position, and alternatively to release the holder to an open position by movement of the bar, and to enable ready access to blades in the holder.

Abstract: A reciprocating saw is provided having a motor oriented within a housing for operably driving a saw bar and blade holder in a reciprocating motion. The blade holder has a longitudinal slot for receiving a saw blade, and a transverse aperture extending into the longitudinal slot for receiving a follower. A sleeve is pivotally mounted upon the body, and has a circum-axial cam groove formed therein cooperating with the follower. Rotation in a first lock direction urges the follower into the longitudinal slot for engaging the saw blade and rotation of the sleeve in a second unlock direction allows the follower to retract. A biasing member is included for biasing the sleeve in the first lock direction. The sleeve central bore is adapted to provide clearance for the follower such that the sleeve is permitted to axially translate relative to the body for assembly or disassembly of the blade holder.

Abstract: A multi-purpose self defense tool is provided which can be used for pinching an opponent, delivering a blow and/or as a kinetic opening folding knife by positioning a pointed hump located on the non-cutting edge of the blade against an object or the body of an opponent and dragging the tool in a rapid motion.

Abstract: A multiple receptacle blade holder tool including an elongated rectangular cross section main body with one end being rounded and having multiple rectangular receptacles for blades. The blade holder also has top and bottom surfaces parallel to the blade receptacles and a relief channel forming independent legs that clamp one or more blades in the holder.

Abstract: A metallic housing utility knife and method for making the device with a soft over molded elastomeric cover to provide blister free comfort and slip proof safety. The cover or skin is molded into the unique structure of the housing in a fashion that results in mechanical bonds that embrace the cover on the housing. The knife includes flexible posts from the cover that project into the blade storage compartment of the housing to prevent internally stored spare blades from moving within the storage compartment. An elastomeric blade clamp integrally formed with the cover serves to restrict lateral movement of blades of varying sizes when installed in a cutting position within the knife assembly. A rear quick release latch and interlocking housing sections provide a convenient way to open and close the knife and assure that it is also secure and firmly held when locked in a safe cutting position.

Abstract: A hand tool has an elongated blade having a longitudinally inwardly projecting tang having a longitudinal back edge formed with a plurality of transversely directed teeth, a longitudinal front edge, and an elastically transversely deflectable retaining formation. A handle forms a longitudinally open seat having one longitudinally extending side wall. A retaining lever has an edge formed with teeth and an elastically transversely deflectable retaining formation. The lever is displaceable between a closed holding position with the lever teeth meshing with the blade teeth and pressing the blade against the seat wall and the formation transversely engaging and bearing elastically against the blade retaining formation, and an open freeing position with the lever teeth out of mesh with the blade teeth and the formation out of engagement with the blade retaining formation.

Abstract: The invention relates to a jigsaw comprising a housing, an electric motor accommodated therein, an output shaft of the motor being coupled to a saw moving mechanism for driving a saw blade, and means for bearing mounting of the saw moving mechanism, wherein the bearing means comprise a bearing element which is stiff in relation to the housing, wherein the stiff bearing element is formed by a thin-walled and bent plate element arranged transversely of the walls of the housing.

Abstract: A clamping device for motor-driven straight-back and saber saws fixable to a lifting rod, the clamping device has a clamp holder, a movable clamping piece arranged relative to the clamp holder so that a saw blade can rest between the clamp holder and the movable clamping piece, the clamping piece having a first side which faces toward the clamp holder and has a surface adapted to abut against the saw blade, and also a second side which is remote from the clamp holder and has a wedge-shaped surface, a wedge piece having a wedge-shaped surface abutting against the wedge-shaped surface of the clamping piece and also having an opposite surface, and a spring acting on the wedge piece so as to move the clamping piece into a position of repose so that the first surface of the clamping piece presses against the saw blade.

Abstract: A multi-purpose work knife includes a universal elongate handle (“UEH”) extending generally upon a UEH axis, the handle having a compound, convex curvature and an assembly within, at a top surface of a first end of the UEH, for holding a UEH utility knife blade in a selectable longitudinal position defined by a cutting edge of the UEH blade, said UEH also defining substantially oval radial cross-sections between the blade holding assembly and a second end thereof, the cross-sections defining slightly smaller radii at about a center region of said UEH, the second end including a complemental securement element; and a selectable non-universal portion (“SNP”) having a first end and a second end including an element for selectable for selectable complemental securement to said UEH complemental securement element, the second end of the SNP having a like radius and curvature to the second end of the UEH at opposing surfaces, the UEH axis passing through the complemental securement means of t