Abstract: A blade-carrier tool of the type forming a handle for holding in the hand, and provided at its front end with a removable blade which is held in position by a clamping mechanism including two jaws between which the blade may be engaged. The jaws of the clamping mechanism are connected to respective levers serving to control the clamping mechanism. The levers are suitable for occupying an open first position in which the jaws are moved apart from each other, and a closed second position which is spontaneously locked under the action of declutchable locking means, in which position the jaws bear against respective opposite sides of the blade and hold it securely in position.

Abstract: A combination of surgical blade holder and cooperating blade is provided, which allows simple insertion of a blade having a specific configuration of opening in the tang for receiving a specific boss configuration on the handle, and closure to a locked position of the blade, upon insertion. The two parts of the handle pivot relative to one another in the same longitudinal plane around a pivot positioned adjacent the blade portion. This allows a relatively long handle portion for gripping the device for ejecting the blade, using the thumb or finger of the same hand for opening the holder. The gripping portion of the handle has adjacent to the blade portion thereof a boss which conforms to the opening in the blade tang. The boss includes a cleat with an overhang which serves to receive the opposed mating surface on the opposite half of the handle.

Abstract: A holder for reusing a used microtome blade, in which the front end portion of a holder body is cut through along a plane extending through the longitudinal axis of the holder body so as to form bifurcated half parts defining a slit for receiving a used microtome blade. An inclined through-bore is formed in the front front end portion, extending in the same plane so as to terminate the slit, one of the corners of the inserted end part of the microtome blade bears against the innermost part of the wall surface of the inclined throughbore and is clamped between the bifurcated half parts by a clamping member.

Abstract: A blank for a scraper blade is disclosed. The blade is designed to fit into a utility knife and is bent so as to be useful as a scraper.

Abstract: A handle is provided for blades, and particularly surgical blades, which allows simple insertion sequentially of a plurality of blades, and closure to a locked postion of the blade, upon insertion. The two parts of the handle pivot relative to one another in the same longitudinal plane around a pivot positioned adjacent the blade position. This allows a relatively long handle portion for gripping the device for ejecting the blade, using the thumb or finger of the same hand for opening the holder for ejection single-handedly. The gripping portion of the handle has adjacent to the blade portion thereof a boss which conforms to the opening in the blade tang. Closure causes the movble portion of the handle to cover the boss and the blade tang in a wedging action preventing movement of the blade relative to the handle in closed position.

Abstract: A tool holder assembly having a pair of mating handle parts which hold a tool therebetween and which form a compartment therebetween, in which the improvement is a releasable handle fastener assembly.

Abstract: An apparatus wherein an elongate lawn mower blade body includes a forwardly extending flange and a rearwardly extending flange, wherein each flange includes a slot extending along the flange spaced from an end edge surface of the cutting blade a predetermined distance. A polymeric replacement blade, including a "T" shaped projection directed rearwardly of the blade, is receivable within the slot, wherein the blade includes a top and bottom surface aligned with a respective top and bottom surface of the associated blade body. Modifications of the invention include metallic reinforcement cast within the blade and optionally utilizing an "S" shaped blade to position the blade underlying the blade body.

Abstract: A small, hand-held cutting tool which is light in weight and easily manipulated for use in cutting relatively soft materials. The cutting tool apparatus described herein is especially useful for the decorative carving of pumpkins.

Abstract: A handle, suitable for knives and other implements, which provides for adjustable length blades, etc. comprises an outer portion of a resilient high coefficient of friction material surrounding an inner chamber of more rigid low coefficient of friction material into which a blade tang or the like may fit. The chamber is configured such that the high coefficient of friction material may be forced into close contact with a blade tang or the like to fix this in variety of different portions.

Abstract: The present invention relates to a tool for thinning bunches of young berries comprising a cutter head for housing a cutter. The cutter head is constructed with guides to permit the user to excise selected laterals from the main stem of the bunch without nicking or scraping the main stem, or coming into physical contact therewith except at the tip thereof. The tool includes a handle for controlling the cutter head. The handle serves a double function in that it is also a measuring device which permits the worker to nip off the tip of the main stem touched by the worker doing the thinning process, at a predetermined length.

Abstract: There are disclosed a blade-holder capable of holding two different deburring blades and a deburring tool utilizing the blade-holder. The blade-holder comprises of a rod, two longitudinal bores, one at each end of the rod and releasable locking means situated in the regions of the longitudinal bores.

Abstract: According to the invention, a pizza cutting device is provided comprising an elongate handle, a cutting wheel with a peripheral cutting edge and a hub having a bore with a central axis and structure for removably assembling the handle with the cutting wheel so that the cutting wheel is guidingly rotatable relative to the handle about the hub central axis. The handle has spaced bearing surfaces which stabilize the device during use.

Abstract: An arrow for hunting includes a razor-type arrowhead comprising two crossed blades removably insertable within a pair of crossed slots in the forward portion of either a tubular or solid shaft. The forward point of the shaft itself is formed with a reduced diameter threaded tip communicating at its rear with a larger diameter stop shoulder. With the arrowhead fully seated within the shaft slots, a forward shoulder thereon is substantially flush with the shaft stop shoulder such that the subsequent application of an internally threaded point member to the shaft tip, secures the arrowhead against both radial and axial displacement relative the shaft.

Abstract: The squeegee blade trimmer of the present invention includes a pair of back to back C-channels having mounted along one side thereof a pair of shear bars, along with a pair of parallel extending tracks. The C-channels are hinged together on their opposite side and a press clamp mechanism is provided for selectively drawing the channels together. A blade holder is provided with a pair of runners for running along the tracks such that a worn, flexible squeegee blade may be placed between the shear bars and the blade holder run along the tracks causing a laterally extending blade edge to sever a worn edge of the squeegee blade from the body of the squeegee thus leaving a fresh, clean straight edge.

Abstract: A carpet layers knife made for easy replacement of a replaceable blade which includes a blade holding portion and a handle portion; the blade holding portion provided with an internal shoulder to guide the blade into and out of the knife without dulling the blade, and a connecting element holding the elements of the knife together, the connecting element being positioned to be out of the path of the blade as it is inserted and retracted but capable of holding the blade firmly in its tightened position while providing a passageway for insertion and removal of the blade in its loosened position.

Abstract: An improved broadhead assembly for an arrow includes a lightweight hollow hub which is affixed to the arrow shaft through a mounting shaft and sleeve retainer. The lightweight hub is tapered toward the front and includes a broadhead blade receiving slot on the leading end thereof shaped to receive a plurality of such broadhead blades. These broadhead blades are adapted to be retained by the hub slot and extend forwardly thereof to provide a broadhead point which slashes into a target differently than a point, which punches at a target. In one embodiment, the plurality of broadhead blades includes a pair of opposed primary blades having frontal tip portions positioned in overlying relation for added tip strength, and a pair of opposed secondary blades having tip portions adapted to tangentially abut the side of an adjacent primary blade tip while extending substantially to the forward point of the primary blade tip.

Abstract: A broadhead arrow head structure armed with razor type blades spaced thereabout, each of the blades being positioned into a slot, each blade having an underlying forwardly projecting tongue portion, the tongue portions extending into an undercut recess of the slots, and the arrow head structure being threaded into an arrow shaft to lock the blades in operating position.

Abstract: An improved broadhead assembly for an arrow includes a lightweight hollow hub which is affixed to the arrow shaft through a mounting shaft and sleeve retainer. The lightweight hub is tapered toward the front and includes a broadhead blade receiving slot on the leading end thereof shaped to receive a plurality of such broadhead blades. These broadhead blades are adapted to be retained by the hub slot and extend forwardly thereof to provide a broadhead point which slashes into a target differently than a point which punches at a target. In one embodiment, the plurality of broadhead blades includes a pair of opposed primary blades having frontal tip portions positioned in overlying relation for added tip strength, and a pair of opposed secondary blades having tip portions adapted to tangentially abut the side of an adjacent primary blade tip while extending substantially to the forward point of the primary blade tip.

Abstract: A knife including a detachable blade which is readily released from the knife handle with a locking mechanism including a spring biased pivotally mounted locking plate formed with a locking tab mating with a recess in a knife blade tang.To assemble the blade to the handle the tang is inserted into a knife handle socket and the locking plate tab moved into locking engagement with the tang. Depression of the locking plate rearend enables quick release for replacement or removal of the knife blade. A series of angled shoulders formed on the knife blade and the tang cooperate with corresponding angled surfaces on the handle components provide great rigidity of the blade in the handle.

Abstract: A shaving implement comprising a platform member having a slot therein and a support surface adjacent the slot, a blade member having first and second portions generally normal to each other, the first portion having a cutting edge thereon, and a cap member having a support surface thereon, the blade member second portion being disposed in the slot and the blade member first portion being clamped between the platform and cap member support surfaces, the cap member being permanently joined to the platform member.

Abstract: An arrowhead assembly with removable blades for attachment to the forward end of an arrow shaft for archery shooting is disclosed which provides self-aligning and self-centering of the arrowhead upon the arrow shaft. The self-aligning and self-centering is achieved by a non-deformable blade locking ring fitting over a portion of a blade carrying body, the locking ring having an undercut forward portion fitting loosely over a rearward extension of each of the blades and the rearward end of the undercut having an acute angle for forcible engagement against an angle at the rear end of each blade rearward extension. A compressible, resilient ring fits over the blade carrying body adjacent the rearward side of the non-deformable blade locking ring.

Abstract: An arrowhead assembly is provided in which the blades are readily removed manually, and are easily replaced. The arrowhead is effective in use, and is produced with desirable levels of facility and economy. A core member is fitted within a longitudinal slot formed in each of two interlocked, crossed delta-shaped blades. Each blade has an outwardly directed tang at the rear thereof on each side of the slot. A locking ring fits about the core member and has a cruciform shaped aperture in one end thereof. The aperture is aligned with the tangs and the ring is slid forwardly over the tangs against an abutment on the core. When the ring is rotated inwardly projecting portions defining the cruciform aperture overly the tangs and hold the blades on the core.

Abstract: An arrowhead for hunting archers includes two or more interchangeable replaceable blades, each of which blades includes two axially spaced outwardly extending knife sections each of which has its leading edges sharpened to increase the depth of penetration of the arrowhead and trailing edges sharpened to facilitate angular penetration and withdrawal. The forward end of the arrowhead is blunt so as to cause it to be deflected away from a bone and to increase the slicing action of the knives. A knife may include dull notches to comb hair into the wound to prevent closure and the blades may be flexible enough to pass easily between adjacent ribs.

Abstract: A holder for a blade of a saber saw unit, wherein the blade is of the type provided with a pair of opposed side marginal edges and a notch in at least one side marginal edge near the rear end of the blade. The holder includes a support having a slot for receiving the blade and projecting means shiftably mounted on the support near one side margin of the slot for movement across the same and into the notch of the blade when the blade is in the slot to releasably hold the blade in the slot. Bias means holds the projection means in an operative position in the notch of the blade in the slot. A number of embodiments of the holder are disclosed.

Abstract: A knife accommodating interchangeable blades. The knife includes a blade having a tang extending from its base, and an elongate handle having a front, blade-receiving region and an opposed back region. An elongate lever having opposed pivot and locking points is attached at its pivot point in the back region of the handle for swinging toward and away from a locked position in which the lever is axially aligned with the handle. The lever provides, adjacent its pivot point, a cammed surface dimensioned to engage a spring arm within the handle, thus to lock the lever in its locked position. The blade tang is securely held within a cavity defined in part by the locking point of the lever, with the latter in locked position.

Abstract: A razor type arrowhead having an elongated tubular body, with a plurality of longitudinal slots formed in spaced positions around the periphery of the body. A removable blade is mounted in each slot in the body. Each blade is provided with a dovetail connector extension that is seated in a mating recess in the body. A combination arrow shaft attachment and blade retainer member is mounted on the rear end of the body and releasably secures the blades in the body. An arrowhead nose member is releasably mounted on the front end of the body and is detachably connected to the combination arrow shaft attachment and blade retainer member.

Abstract: An electrically heated kitchen utensil has a thermally insulated handle provided with an internal electric heating unit adapted to releasably receive and heat a kitchen device, such as a knife, spoon, scoop, dipper or spatula. The heating unit comprises a pair of spaced parallel electric heating elements defining an channel which receives the shank of the kitchen device. The kitchen device is releasably secured in the channel by interengaged teeth on the shank and a spring biased pivoted member forming the bottom of the channel. The kitchen device is released by a release push button acting on the pivoted member to disengage the teeth. A rheostat is provided to regulate the heat output of the heating elements.

Abstract: A disposable blade holder includes a comfortably fitting handle portion and a blade clamping portion adapted to securely lock one end of a disposable blade in angular relation to the handle portion, the blade being of the precision ground, single edge, unbanded, notched end type as employed for surgical preparation, disposable microtome blade cutting operations, and the like.

Abstract: A knife having a handle adapted to interchangeably receive in releasable interlocking relationship a variety of blade configurations. Each blade includes an arcuate tang dimensionally adapted to be telescopically received in a mating arcuate slot in the handle. Included in the handle are locking devices for releasably engaging the tank in the slot.

Abstract: A fixed cutting blade is received within one end of a two part housing. An elongated guard having a U-shaped cross section embraces the housing parts at the blade end and is shiftable through a series of positions to expose different amounts of the cutting blade including a blade covering or "safety" position.