Abstract: Various arthroscopic shavers are provided that minimize contact between bodily fluid and the shaver hand piece. Arthroscopic shavers generally include a cutting assembly mated to a hand piece. In one embodiment, the shaver includes a hub that connects the cutting assembly with the hand piece and has an exit port configured to transport cut tissue and fluid from the device. In another embodiment, the shaver includes a hub configured to retrofit existing shaver hand pieces having interior lumens for removing cut tissue and fluid. The hub further includes an exit port that diverts fluid away from the hand piece.

Abstract: The present invention provides for a shaving device and more specifically, to a portable, conical shaped shaving apparatus with a central element, top and bottom caps, and when assembled, the apparatus is designed to look like a cosmetic container.

Abstract: The present application discloses a portable curtain cutter assembly comprising a base and a portable cutter. The base comprises a supporting plate; a side wall; and a slider. The side all is coupled to the supporting plate and comprises a first groove. The slider is slidably coupled to the side wall through the first groove, wherein the slider comprises a slot. The portable cutter comprises a blade, wherein the blade is capable of being inserted partially into the slot. A method or using the aforementioned portable curtain cutter assembly is also disclosed.

Abstract: An Invasive Weed Seed Removal System, and a method are disclosed providing an invasive weed seed removal device including a weed seed removal nozzle in combination with a vacuum and a venturi effect cutting blade configuration, which acts to cut and vacuum invasive weed seed pods, thereby effectively and economically removing them from the environment before the weed seeds reach the ground, whereby the annual cycle of invasive weed growth is broken, and areas of land are cleared of invasive weeds to enable native plants to grow and thrive. The Invasive Weed Seed Removal System can be configured as a hand-held unit, a backpack mounted unit, a lawn mower type unit and a heavy equipment type tractor attachment, to enable several methods of controlled cutting and removal of the seed pods of invasive weeds and noxious imported grasses, by adjusting the height of the cutting and vacuum nozzle.

Abstract: Methods and systems for separating an object, such as a lead, from formed tissue are provided. Specifically, a tissue slitting device is configured to engage patient formed tissue at a slitting engagement point. While the object is subjected to a first traction force, the tissue slitting device is caused to move further into the engaged tissue and slit the tissue past the point of engagement. The slitting device causes the tissue to separate along an axial direction of the length of the formed tissue and releases at least some of the force containing the object. The methods and systems are well suited for use in cardiac pacing or defibrillator lead explant procedures.

Abstract: An apparatus for addressing tissue and bone in a nasal cavity includes a rotary or oscillatory cutting member disposed in the lumen of a shaft. The shaft may have a first window region oriented in first direction and a second window region oriented in a second direction. The cutting member may have a first cutting edge configured to be cyclically moved across at least a portion of the first window region and a second cutting edge configured to be cyclically moved across at least a portion of the second window region. A shield is selectively positionable to occlude the first and to occlude the second window region.

Abstract: In order to provide a handheld abrading machine which has a simple, efficient and as fatigue-free an abrading action as possible and which includes a holding device for holding the abrading machine, a drive motor and a tool head, wherein the holding device includes a substantially tubular bar that has a proximal end and a distal end, wherein the drive motor is arranged at the proximal end, wherein the tool head is arranged at the distal end, wherein the abrading machine includes a transmission shaft which connects the drive motor to a tool holder of the tool head for transmitting torque thereto and which runs at least in sections thereof within the tubular bar, it is proposed that a motor shaft rotational axis of the drive motor be oriented transversely, and in particular inclined, relative to a longitudinal axis of the tubular bar.

Abstract: A trimming apparatus, which carries out trimming with cutter blades running from one end of a material to be cut to the other end thereof, includes an apparatus frame, a bed surface having a bed plate for the material to be cut, a first and a second guide plates disposed in parallel above and under and holding the bed surface therebetween, a first holder member slidably supported by the first guide member and holding the first cutter blade, a second holder member slidably supported by the second guide member and holding the second cutter blade, a connector which connects one of the second cutter blade and the second holder member to the first cutter blade, and a drive device which makes at least one of the first holder member and the second holder member run from one end of the material to be cut to the other end.

Abstract: A nose hair trimmer that facilitates removal of clipped hair from a blade. A main body case of the nose hair trimmer includes an interior chamber, a disposal opening, and a ring-shaped shutter. The interior chamber accommodates an inner blade rotor, which supports an inner blade, and collects clipped nose hair. The disposal opening communicates the chamber with the exterior. The shutter opens and closes the disposal opening. The shutter includes a communication portion, which communicates the interior chamber and disposal opening to the exterior. The position of the shutter in the circumferential direction when the disposal opening is closed is set as a reference position, and the shutter opens the disposal opening when rotated from the reference position by an amount that is less than one complete rotation.

Abstract: A pliers for cutting workpieces, in particular workpieces made of metal, comprising at least one plier leg (1) and a pressure element (2), which are connected to each other by a rotation point (13), wherein the plier leg (1) forms a jaw (8) for receiving the workpiece. A cutting element (18) with a cutting mouth (19) is associated with the plier leg (1), wherein a bottom of the jaw (8) and a bottom of the cutting mouth (19) are arranged in the vicinity of a rotation point (29) about which the cutting element (18) is rotating in the plier leg (1).

Abstract: Cutting apparatus for cutting material, the apparatus comprising two blades arranged so that in use together they can effect a cutting operation in a cutting region therebetween, the blades being mounted relative to one another so that they are urged together in the cutting region as a result of a cutting force initiated by the cutting operation. In one embodiment at least one of the blades is mounted for pivotal movement about a pivot axis so that during the cutting operation the cutting or shearing force generated causes the blade to be pivotally urged towards the other blade. In another embodiment one blade is a rotatable cutter blade and the other blade is a further cutter blade which is adapted to cooperate together to perform the cutting operation in a cutting region, the further cutting blade being mounted so as to be urged towards the rotatable blade as a result of the cutting or shearing forces generated during the cutting operation.

Abstract: Embodiments herein provide an involute slicer having a body portion and a blade coupled to the body. The involute slicer may further include an anvil to provide structural support to a workpiece. The blade may rotate about an axis. As the blade rotates, the blade may pass next to the anvil, thereby cutting the workpiece. The blade may include a cutting edge with a radius that increases from a proximal end to a distal end of the cutting edge. For example, the cutting edge may have an involute shape. The involute shape of the cutting edge provides a radially expanding cutting edge as the blade is rotated. In some embodiments, the blade may include a plurality of cutting edges, such as two cutting edges.

Abstract: Hand-held electrical shears has a housing with a tool head and a grip part, an electric motor, a drive shaft driven by the electric motor via a transmission, a rotatable tool mounted on the drive shaft, and a rechargeable energy accumulator in the grip part. The transmission and a portion of the electric motor are in the tool head, an actuating element of an on/off switch is on an underside of the grip part, a grip cover is attached to a top side of the grip part. A shaft end section extending laterally out of the housing carries a bearing flange with a driving element for the tool, and a blade retaining plate with a counter-blade and a supporting base are detachably attached in a flattened region of the housing.

Abstract: A manually operable cutter device for cutting flexible sheet material, the cutter device comprising a cutter body and a cutting blade assembly operatively mounted to the cutter body and including a rotatable cutter blade having a peripheral edge portion and a fixed cutter blade adapted to cooperate together to provide a cutting zone in which sheet material can be cut. The rotatable cutting blade is mounted for rotation about an axis which extends generally laterally with respect to a normal feed direction of the sheet material to the cutting zone and the direction of rotation of the peripheral edge portion through the cutting zone is in the normal feed direction. The tangential peripheral speed of the rotating cutter blade in the cutting zone is not less than the speed of the feed of sheet material to the cutting zone.

Abstract: A food product slicer includes a base and a knife mounted for rotation relative to the base. A slide rod extends in a direction past the knife. A carriage assembly is mounted for reciprocal movement back and forth past a cutting edge of the knife. At least one bearing arrangement connects the carriage assembly to the slide rod to facilitate the reciprocal movement of the carriage assembly. The bearing arrangement includes a lubricant reservoir. A bearing bracket holds a bearing that rides on the slide rod. The lubricant reservoir is fluidly connected to deliver lubricant to the slide rod in proximity to the bearing.

Abstract: Cutting apparatus for cutting material, the apparatus comprising two blades arranged so that in use together they can effect a cutting operation in a cutting region therebetween, the blades being mounted relative to one another so that they are urged together in the cutting region as a result of a cutting force initiated by the cutting operation. In one embodiment at least one of the blades is mounted for pivotal movement about a pivot axis so that during the cutting operation the cutting or shearing force generated causes the blade to be pivotally urged towards the other blade. In another embodiment one blade is a rotatable cutter blade and the other blade is a further cutter blade which is adapted to cooperate together to perform the cutting operation in a cutting region, the further cutting blade being mounted so as to be urged towards the rotatable blade as a result of the cutting or shearing forces generated during the cutting operation.

Abstract: The invention relates to a hand machine-tool, especially electrical shears, comprising a housing (13) provided with a tool head (14) and a grip part (15), an electric motor (18) arranged in the housing (13), a switch (22) for the electric motor (18), and a drive shaft (16) mounted in the tool head (14), transversally to the housing axis. The drive shaft can be driven by the electric motor (18) by means of a transmission (19). The hand machine-tool also comprises a rotary tool (11) that can be fixed to the drive shaft (16). The aim of the invention is to create a compact, structurally small and lightweight hand machine-tool for work without generating fatigue. To this end, a small-volume, rechargeable energy accumulator, preferably a lithium ion accumulator (20), which feeds the electric motor (18) and has a high charging capacity, is arranged in the grip part, together with an electronic plate (21) and the switch.

Abstract: The invention relates to a hand machine-tool, especially electrical shears, comprising a housing (13) provided with a tool head (14) and a grip part (15), an electric motor (18) arranged in the housing (13), a switch (22) for the electric motor (18), and a drive shaft (16) mounted in the tool head (14), transversally to the housing axis. Said drive shaft can be driven by the electric motor (18) by means of a transmission (19). The hand machine-tool also comprises a rotary tool (11) that can be fixed to the drive shaft (16). The aim of the invention is to create a compact, structurally small and lightweight hand machine-tool for work without generating fatigue. To this end, a small-volume, rechargeable energy accumulator, preferably a lithium ion accumulator (20), which feeds the electric motor (18) and has a high charging capacity, is arranged in the grip part, together with an electronic plate (21) and the switch.

Abstract: A cutting and forming device includes an outer sleeve, an inner sleeve, and a housing. The outer sleeve has a longitudinal axis, a front end, a rear end, and a borehole having an borehole axis. The inner sleeve, can be rotated in the outer sleeve's borehole and includes a front end, a rear end, and a borehole having a borehole axis. The housing with a central axis has a front end, a rear end, and a cavity which accommodates the outer sleeve and passes through the housing parallel to the central axis. The front end of the inner sleeve has a circular cutting edge which is concentric with the borehole axis of the inner sleeve, and the borehole at the front end of the outer sleeve has a constriction whose longitudinal axis is parallel to the borehole axis of the outer sleeve.

Abstract: Cutting device for making interior cuts includes first and second pivot members pivotally connected to one another at a pivot point and each including a handle portion with a finger-receiving aperture on one side of the pivot point and an arm portion on the other side of the pivot point. One or more rotatable, substantially circular cutting blades are arranged at a free end part of the arm portion of the first pivot member while one or more support rolls are arranged at a free end part of the arm portion of the second pivot member in a position opposite at least one of the cutting blade(s).

Abstract: An implement having a drive motor and a tool is provided. A drive shaft is mounted in a guide tube and interconnects the drive motor and tool for rotatingly driving the tool. The drive shaft includes a main member in the form of a hollow shaft having ends on which are disposed respective extensions that form a coupling connection for a positive engagement with coupling components of the drive motor and of the tool.

Abstract: Bodies with non-circular cross-sections are cut using a tool, by applying a torsional cutting process.

Abstract: The present invention describes a wick cutting device, particulary designed to clip the wicks of candles to a specified length. The invention comprises two cylinders, one with a grip and one with a handle. The wick trimmer is assembled as a cylinder inside a cylinder in which the inner cylinder has a steel blade at the bottom. The inner cylinder rotates within the outer cylinder. The wick is cut with a simple twist of the handle.

Abstract: A bolt cutting tool comprises a bolt engaging portion and a cutting blade. The bolt engaging portion has at least one bolt-receiving bore, which is adapted for receiving a portion of a bolt to be cut. The cutting blade is rotatably connected to the tool generally adjacent the bolt engaging portion. The cutting blade has a cutting surface with an arcuate peripheral cutting edge. The cutting blade is adapted for rotation relative to the bolt-receiving bore from a pre-cut starting position toward a post-cut finishing position. The blade is adapted to rotate in a manner so that the arcuate peripheral cutting edge of the blade cuts the bolt as the cutting blade is rotated toward the post-cut finishing position. The blade is configured so that an angle of incidence between the cutting surface of the blade and a center axis of the bolt-receiving bore is less than 15 degrees when the blade is in its pre-cut starting position.

Abstract: A replaceable cartridge (20) is provided suitable for use with a rotary handpiece that is particularly adapted for shearing sheep. The cartridge (20) is provided with a plurality of radially directed projections (24) with which are associated a plurality of aligned recesses (26) for releasably receiving cutting elements in the form of elongate chips (22) preferably having a V-shape with a centrally located longitudinal groove. The replaceable cartridge allows for the quick and easy replacement of blunt or damaged cutting chips by either allowing individual chips to be replaced within the cartridge or by replacing the cartridge with a fresh cartridge having new chips.

Abstract: A tensioning means for a rotary handpiece is described in which the handpiece (2) is characterized in having a planar rotating blade (12) provided with a plurality of teeth and a plurality of cutting elements (22) capable of moving reciprocally in a linear direction in response to contact by the teeth of the rotary blade (12) when it rotates. There is a clearance gap between the rotary blade and the cutting chips, the size of which is varied by movement of the tensioning means so that the cutting characteristics of the handpiece are changed in accordance with movement of the tensioning means which applies tension to the rotary blade. In one form, the tensioning means comprises a rotating spindle, a flanged member, a bearing member and a resilient means such as an O-ring located between the flanged member and bearing member.

Abstract: A sewing cutter is provided which includes a handle, a cutting member attached to the handle, and a guiding member supported by the handle. The guiding member, which is arranged below the cutting member, may be an elongated plate whose front end is tapered. The guiding member is provided with an upper surface which is brought into facing relation to cloth to be cut by the cutting member.

Abstract: A hand held cutter which is self guiding and includes a roller with a resilient workpiece contacting surface and is rotatably mounted adjacent each pair of cutting rolls on a cutting roll supporting body. When the cutting roll supporting body is pulled or pushed across a sheet to be cut, the rollers frictionally engages the upper and lower surfaces of the sheet and tend to guide the cutter in a straight line.

Abstract: A rotatable shaver having inner and/or outer non-metallic elongated blades for use in endoscopic surgical procedures. In one embodiment a rotatable, elongated non-metallic inner tubular member is disclosed for use with a non-rotatable elongated metallic outer tubular member, the inner member having a flexible, non-metallic tubular body, a proximal hub and a distal tip provided with a cutting tip having a cutting edge formed therein. The elongated tubular body of the inner member is mechanically joined at its proximal end to the hub and at its distal end to the cutting tip. The mechanical connection enables the transmission of torque from the proximal end of the inner member to the distal end while sufficiently holding the tip, tube and hub assembly together to enable insertion and removal of the assembly into and from the outer member.

Abstract: The lock cylinder with an external housing accommodates, on its rear face, a closure element acting upon a mortise lock or the like and with an exchangeably inserted core unit the casing of which contains housing pins as tumblers and a cylinder core equipped with a key channel, said cylinder core also receiving core pins as tumblers and being connected merely in a plug-in manner to coupling pins which issue from said closure element and project freely into a socket in said external housing serving for insertion of said core unit, wherein engagement of said coupling pins extends only over a rear region, which is free from key channels, of said cylinder core.

Abstract: This invention relates to an improvement of a mowing blade unit in which a rotary blade and a fixed blade are overlapped to each other in coaxial relation to each other so as to cut the weeds under rotation of the rotary blade, wherein the circumferential edges of the rotary blade are formed with concave-shaped blade positions curved toward its rotating direction, the circumferential edges of the fixed blade are formed with a plurality of convex-shaped blade portions oppositely and slidably contacting with the concave-shaped blade portions with a specified holding angle, thereby the concave-shaped blade portions at the circumferential edges of the rotary blade take weeds into areas between each of the convex-shaped blade portions at the circumferential edges of the fixed blade and the rotary blade to hold the weeds with the convex-shaped blade portions with a specified holding angle and to make a positive cutting of the weeds to improve an efficiency of cutting operation.

Abstract: A rotary blade cutter (10) including a semitubular rotary cutting blade (12) rotatably mounted within a tubular housing (14). The tubular housing 14 includes an entrance slit (22) and a diametrically opposed exit slit (24) for insertion of a web into the cutting device. A first cutting edge (32) is formed along a first side of the entrance slit. The semitubular rotary cutting blade includes a first slit (36) nominally aligned with the housing entrance slit when the rotary blade is in a retracted position, and includes a second cutting edge (48) that is formed adjacent a second side (46) of the entrance slit to oppose the first cutting edge. The second cutting edge is tapered to spiral around the longitudinal axis of the housing. The rotary cutting blade includes a spiral groove (50) that coacts with a guide pin (52) projecting inwardly from the housing to constrain the rotary cutting blade to rotate about the longitudinal axis of the housing when the rotary blade is longitudinally advanced within the housing.

Abstract: This invention relates to an improvement of a mowing blade unit in which a rotary blade and a fixed blade are overlapped to each other in coaxial relation to each other so as to cut the weeds under rotation of the rotary blade, wherein the circumferential edges of the rotary blade are formed with concave-shaped blade portions curved toward its rotating direction, the circumferential edges of the fixed blade are formed with a plurality of convex-shaped blade portions oppositely and slidably contacting with the concave-shaped blade portions with a specified holding angle, thereby the concave-shaped blade portions at the circumferential edges of the rotary blade take weeds into areas between each of the convex-shaped blade portions at the circumferential edges of the fixed blade and the rotary blade to hold the weeds with the convex-shaped blade portions with a specified holding angle and to made a positive cutting of the weeds to improve an efficiency of cutting operation.

Abstract: A surgical cutting instrument comprising an outer tube having a peripheral wall and a longitudinal axis. The outer tube has a plurality of openings arranged generally longitudinally along the outer tube. Each of the openings has first and second cutting edges defining portions of the periphery of such openings. An inner cutting member is rotatable within the outer tube. The inner cutting member has at least one cutting edge cooperable with the first and second cutting edges of the openings of the outer tube for cutting material from within the patient with a shearing action.

Abstract: A surgical cutting instrument comprising an outer tube having a peripheral wall, an end wall and an opening in the peripheral wall and the end wall. The outer tube has first and second cutting edges defining portions of the periphery of the opening, and the cutting edges intersect at an angle of at least about 90 degrees to define a corner. An inner cutting member is rotatable within the outer tube. The inner cutting member has a cutting edge cooperable with both the first and second cutting edges of the outer tube for cutting material with a shearing action that progresses along both of the first and second cutting edges toward the corner.

Abstract: A surgical cutting instrument comprising:an outer tube sized for insertion through an opening in a patient, the outer tube having a distal end wall, a peripheral wall and a longitudinal axis, the outer tube having a first and second opening, the first opening being located at least primarily in the distal end wall and the second opening being located at least primarily in the peripheral wall, each of the openings having first and second cutting edges defining portions of the periphery of such openings; andan inner cutting member rotatable within the outer tube, the inner cutting member having at least one cutting edge cooperable with the first and second cutting edges of the openings of the outer tube for cutting material from within the patient with a shearing action that progresses along the first and second cutting edges as the inner cutting member rotates.

Abstract: A surgical cutting instrument comprising an outer tube having a peripheral wall and a longitudinal axis. The outer tube has a plurality of openings arranged generally longitudinally along the outer tube. Each of the openings has first and second cutting edges defining portions of the periphery of such opening. Each of the first cutting edges is substantially straight as viewed in a particular direction perpendicular to the longitudinal axis of the outer tube. An inner cutting member to rotatable within the outer tube. The inner cutting member has a cutting edge cooperable with the first and second cutting edges of the openings of the outer tube for cutting material from within the patient with a shearing action.

Abstract: A rotary type nibbler comprising a spindle having a helical groove, the spindle being rotatable in a body which terminates in a flat workpiece engagement face which is at an angle with respect to the axis of rotation approximating the helix angle of the groove so that the edge of a workpiece when urged into engagement with the root of the groove will have cut from it a crescent shaped slug.

Abstract: A hand held surgical instrument for use in removing body tissue from a human body. It is particularly useful in arthroscopic surgery of joints such as of the knee or shoulder, but may also be used to remove tissue from the stomach, abdomen, jaw or other portions of the body. An auger-like helical cutter is motor driven at speeds in excess of 1,000 rpm within a stationary outer cylindrical sheath member. The helical cutter is ground to provide a generally concave distal end which gives it a generally fish-tailed appearance and the ability to cut endwise, i.e., to effect an axial boring cut. In addition, the cylindrical sheath member is provided with a pair of longitudinally extending, diametrically opposed tab members at its distal end. Each of the tabs has at least one longitudinally extending edge thereof ground to provide a cutting edge which co-acts with the auger-like cutter blade to sever body tissue insertable between the tabs.

Abstract: A rotary type nibbler comprising a spindle having a helical groove, the spindle being rotatable in a bearing sleeve which terminates in a flat workpiece engagement face which is at an angle with respect to the axis of rotation approximating the helix angle of the groove so that the edge of a workpiece when urged into engagement with the root of the groove will have cut from it a crescent shaped slug.

Abstract: A manual rotary-shear cutter for severing sheet metal stock has a cutting head and a handle joined by an extension tube engageable with and selectively retained at sites formed on the cutting head and handle. A series of preformed apertures spaced along the extension tube allows shortening of the overall length of the cutter by severing the extension tube and aligning the apertures nearest the end of the extension tube with passages formed at such sites, inserting fasteners therethrough, and releasably securing such fasteners. A connecting sleeve may also be provided to join individual extension tube segments, thereby forming a longer extension. Flanges formed integrally with the head define mounting sites for the cutting blades, and overlap the blade edges, to protect the cutting edges of the blades.

Abstract: A powered trimmer is provided which cuts in the manner of a scissors rather than a saw. A plurality of cutting assemblies is arranged along the length of a generally horizontal support bar. Each cutting assembly includes a vertical shaft mounted with respect to the support bar and passing through the center of each of a pair of pulleys mounted for independent rotation about the shaft. A blade is affixed to each pulley. Drive means including an arrangement of endless belts and offset pulleys are provided to counter-rotate the upper and lower pulleys in each pair, and thus their corresponding blades, for the desired scissors-like cutting effect.

Abstract: A grass trimmer has an elongated operation rod, a prime mover mounted on one end of the operation shaft, a transmission shaft extended through the operation rod, a gear box connected at its one end to the other end of the operation rod, and a cutting blade member connected to a blade driving shaft projected from the other end of the gear box, the transmission shaft and the blade driving shaft being drivingly connected to each other through gears within the gear box. The gear box 5 is composed of a plurality of steel sheets 7,8 which are shaped beforehand to define, when assembled together, a hollow 17 of a circular cross-section and to have longitudinal flanges 9,9 and 10,10. The steel sheets 7,8 are joined to each other to form the gear box in one body by hemming along the flanges 9,9 and 10,10 such that the flanges are superposed and folded one on the other to form fold-back portions 11,11 along the length of the gear box 5.

Abstract: An improved feed chopping knife for mounting on a rotating feed chopping cutter head and engaging a cutter bar. The knife having a groove cut therein and along the length of the front of the knife thereby reducing the surface area of a beveled cutting edge and causing less drag when the knife engages the cutting bar. Also, the knife provides the feature of discharging the cut feed away from the cutter head thereby eliminating feed clogging the interior of the cutter head.

Abstract: A surgical instrument including a tubular member having a port into which material to be cut is introduced there being a cutter within said tubular member having a cutting edge which is moved by a motor relative to said port to sever the material trapped between the port and the butting edge in which when the cutter movement to produce the severing movement is stopped the motor is rotated in the opposite direction to move the cutter to clear any material trapped between it and the port.

Abstract: A microsurgical scissors uses a rotary cutting action and biased blades that intersect in a travelling point of contact. One blade is situated on the end of a tubular shaft and a second blade is on a rod that is rotatable within the shaft. The blades are angled so their cutting edges intersect each other. To assure a precise shearing relationship, the rod is biased rearward in order to bear the cutting edge of the rod blade against the cutting edge of the shaft blade. An actuating mechanism in the handle translates linear finger motion into rotary motion of the rod. The blades cut cleanly and surely without imparting undue tissue trauma.

Abstract: A shearing machine for shearing sheet material, comprises a body (1) and to co-operating shearing wheels (5, 6) between whose shearing edges (41, 42) the sheet is cut. The stand (1) comprises a first part (2) and a second part (3), which are laterally offset from one another, and an intermediate horizontal connecting part (4). The shearing wheels (5, 6) are axially offset from one another and have their shearing edges (41, 42) in tangential contact with one another. The intermediate horizontal stand part (4) forms a wedge-shaped deflector and has its leading edge (27) disposed in line with and at a distance from the nip (28) between the shearing wheels (5, 6). The shearing machine is free from structural elements on either side of the shearing wheels (5, 6), thus enabling sheet of any width to be cut.

Abstract: The nibbler apparatus comprises a quickly changeable rotating cutter having a modified sinusoidal groove of a predetermined width and depth. The rotating cutter is mounted in a die with the modified sinusoidal groove largely enclosed within the die. The modified sinusoidal grooved cutter picks up the material to be cut, carrying it upward into the die opening and there the material is sheared. Flat material can be cut in any direction and the direction of the material being fed into the cutter can be changed at any time.

Abstract: The cutter comprises a cylindrical pipe closed at one end by a plate having a plurality of eccentrically spaced holes. The pipe is externally threaded into the internally threaded pipe with a closed end having an eccentrically located hole for mounting over the protruding end of a Johnny bolt which is to be cut off. The externally threaded pipe has an upper end with holes drilled therethrough for receiving a wrench bar, wherewith to forcibly turn the externally threaded pipe within, the internally threaded pipe when the hole therein is mounted over a bolt end which extends through one of the holes in the closed end of the other pipe, so that by turning said pipes relative to each other the protruding bolt end may be broken or cut off.

Abstract: A herbage trimmer has a larger, toothed rotatable cutting blade provided with a circular array of bosses. A smaller, toothed rotatable cutting blade lies flat against the larger blade and is positioned within the tooth tip circle of the larger blade so that some of its teeth overlap with some of the teeth of the larger blade. The bosses on the larger blade are in gear-tooth relationship with the teeth of the smaller blade so that the blades counter-rotate to produce a continuous shearing action between the over-lapping teeth of the blades.