Abstract: The application relates to a demolition device for demolishing a concrete structure according to one embodiment. The device has a crushing blade for crushing concrete, and a cutting blade for cutting metal or a pulverizing blade for grinding concrete, and a combination blade. The device can be attached to a utility machine in a detachable manner. The crushing and cutting/pulverizing blade are separate blades from each other. The combination blade is adapted to be used for crushing concrete with the crushing blade. The combination blade is adapted to be used for cutting metal with the cutting blade or for grinding concrete with the pulverizing blade. The combination blade has abutment surface parts for the crushing and cutting/pulverizing blade. The abutment surface part for the cutting/pulverizing blade makes possible a power transmission between the cutting/pulverizing and combination blade when using the combination blade for crushing concrete.

Abstract: A cutting tool for cutting sheets of materials, such as, for example, sheets of building materials. The cutting tool includes a base defining a support surface. The base includes a slot extending through the support surface along at least a portion of the base. The cutting tool further includes a handle having a proximate end pivotally engaged with respect to the base. The handle is pivotally movable with respect to the base between an open position and a closed position. The cutting tool further includes a blade integrated or positioned with respect to the proximate end of the handle. The blade includes a plurality of generally flat cutting surfaces arranged in a polygonal profile. When the handle is in the closed position, the slot receives at least a portion of the blade.

Abstract: The invention relates to a device for preparing tissue discs, in particular cartilaginous discs. A device for preparing tissue discs that is of simple structure and ensures safe handling includes, in addition to a clamping device for securing a tissue block by clamping, at least one cutting device for treating the tissue block held in the clamping device.

Abstract: A blade stabilizer device for a heavy-duty material handling demolition tool for shearing and crushing scrap material which includes a lower jaw connected to the boom structure of a hydraulic system of an excavator has an upper jaw pivotally connected to and closable upon the lower jaw at a pivot point. The blade stabilizing device consists of a wear guide pad supported by the lower jaw adjacent the pivot point slidably engaging the movable upper jaw to keep the upper jaw in close engagement with the lower jaw. The wear guide pad is mounted behind the pivot point. A second wear guide pad may be mounted in front of the pivot point on the opposite side of the upper jaw to cross-brace the upper jaw.

Abstract: In order to selectively reinforce portions of a material web, a cutting and laminating device efficiently produces the required reinforcing strips and then laminates them to the web. In order to efficiently and accurately produce these reinforcing strips, a cross web shear is utilized which is capable of cutting required reinforcing strips from the fairly large web of reinforcing material in an accurate manner. Once cut, a holding and positioning device is capable of grabbing onto the reinforcing strip and appropriately positioning it next to the primary material web. A separate laminator can then attach this reinforcing strip to the web at a desired location.

Abstract: A cutting board and leveraged knife apparatus is provided which facilitates cutting of a variety of objects, from large items such as turnips to the rapid, repetitive chopping of smaller items such as carrots or celery. The apparatus includes a cutting board having a vertically oriented support member extending therefrom, the support member having a plurality of fulcrums positioned at convenient, discrete vertical intervals proceeding upwardly from the cutting board. The apparatus includes a knife, preferably one of the variety known as a “chef's knife”, having in its blade thereof, in the upper edge proximate its tip, means for removably engaging a convenient one of the fulcrums. When an item to be cut is placed on the cutting board adjacent the support member, and the knife engages with a convenient fulcrum, cutting of the item is enhanced and facilitated through the lever action of the knife and fulcrum.

Abstract: An apparatus for cutting strips or wafers of wood into contoured pieces for forming an inlay of a desired pattern in a groove of a decorative wooden article, the apparatus comprising a base plate having a work surface with a trough extending thereon; a cutting arm pivotally secured at a first end thereof to the work surface and having an operating handle at a second end thereof, and a member holding a cutting blade on the cutting arm intermediate the handle and the first end, whereby the blade may be raised and lowered by the handle to extend at an angle to and across the trough to effect a cutting operation on strips or wafers of wood placed in the trough in a cutting zone; and first and second fixed stop members disposed in the trough on opposite sides of the cutting arm at predetermined distances from the cutting zone so that a strip or wafer of wood may be placed thereagainst with a portion extending to the cutting zone for an initial cut; and wherein the blade has a multi-planar cutting surface to facili

Abstract: A log cutting apparatus having a support frame, a cutting arm, and first and second hydraulic cylinders for pivotally actuating the cutting arm through a cutting arc. The support frame comprises two support members and a removable linking member for easy disassembly and transport of the log cutting apparatus. The support frame includes a cutting arm housing for protecting the cutting arm in a laid back position with the cutting side of the cutting arm disposed upwardly. The cutting arm passes through a vertical during the cutting stroke. The first hydraulic cylinder works in conjunction with a cam-link, actuating the cutting arm from a retracted position within the housing to an intermediate position through rotation of the cam-link. The second hydraulic cylinder actuates the cutting arm from the intermediate position to an extended position during which the actual log cutting is performed.

Abstract: Pipe shears for cutting tubes of a subaqueous structure, in which the pipe shears are suspended from a vessel to a location at which a tube of the subaqueous structure is to be cut and removed. The pipe shears is formed by two clamping jaws, hingedly connected about a first hinge axis, and a hydraulic cylinder for moving the clamping jaws towards and away from each other. The jaws have opposed flat faces which flatten the tube when the jaws are moved together. A cutting device is located adjacent to the jaws for shearing the tube adjacent to the flattened portion thereof clamped between the clamping jaws. When the tube has been sheared by the cutting device, a separated section of tube can be lifted to the surface while the flattened portion remains clamped in the jaws.

Abstract: A tire cutting machine including a fixed cutting blade and a movable cutting blade, the machine being adapted to cut by shearing action. The movable blade is guided by adjustable guides at each end of the blade to provide very close proximity of the blades and to maintain proper clearance between the blades. The blades, in the open position, are spaced apart at both ends to provide an open throat allowing placement of the tire to be cut in a position relatively close to the pivot point between the blades for better leverage in the cutting process, so that varied sizes of tires for all types of conveyances may be easily cut. Loading and disposal devices are also used with the machine for easier handling. A special tire or wheel holding device is also provided to hold the tire in place as it is being cut.

Abstract: A cutting machine for sheet material comprising a frame, a stationary knife on the frame and a reciprocating blade cooperating with the stationary knife. A motor on the frame is connected to a gear reducer that is in turn connected to a single push rod through a crank. The push rod is operatively connected to a torque tube that is connected adjacent its ends by link means to the reciprocating blade. Rotation of the crank by the gear reducer will actuate the single push rod and the torque tube operatively connected thereto to reciprocate the reciprocating blade. Spring means for assisting movement of the reciprocating blade are readily adjusted from exterior of the frame of the cutting machine. A rotatable cam follower on the reciprocating blade engages a guide block on the frame for moving the reciprocating blade into proper cooperative engagement with the stationary knife in use.

Abstract: A shearing apparatus coupled to an excavator or similar heavy machinery for severing metal structural materials has a fixed blade attached to a boom and a cutting blade pivotably attached to the fixed blade. An outrigger is secured to the fixed blade in a position to support an end of the material during shearing. The outrigger transfers a rotational torque to the fixed blade to urge it toward the movable blade so as to prevent blade separation during shearing.

Abstract: A continuous ironing and automatic cutting apparatus, is provided. The apparatus mainly makes use of a cloth roll stand, a marking device, a few sets of buffering devices, and an automatic cutting device, in cooperation a conventional pressing device and a corking device, to accomplish a continuous ironing and automatic cutting operation.

Abstract: A stump lifting and crushing device for mounting to an end of a bucket arm of a digging machine includes stump lifting hooks and a bit pivotally closable with a counter bit for crushing stumps therebetween. The bit has an elongate narrow cutting surface which cooperates with an aligned counter surface provided by the counter bit. The counter surface extends transversely across the width of the cutting surface of the bit. The closing movement of the bits is limited by the cam-like engagement of a following member of the bit with a stop member of the counter bit.

Abstract: A metal working machine (10) is disclosed according to the preferred form including a punching station (48) associated with a first crank arm (18) pivotably mounted to the frame (12) by a first pivot pin (20) and including multiple shearing stations (50a-e) associated with a second crank arm (26) pivotably mounted to the frame (12) by a second pivot pin (28). A link (36) has its opposite ends pivotably mounted by pivot pins (38, 40) to the first and second crank arms (18, 26), respectively. An expandable and contractable actuator (42) having its opposite ends pivotably mounted by pivot pins (44, 46) to the first and second crank arms (18, 26) simultaneously pivots the crank arms (18, 26) about the first and second pivot pins (20, 28) in opposite directions. The pivot pins (20, 28, 38, 40, 44, 46) are spaced from and parallel to each other.

Abstract: A tire cutting tool wherein a curved hardened cutter blade is hydraulically driven to cuttably engage a tire between the cutting face of the cutter blades and open faces of a cutter anvil with a beginning end of the cutter blade entering between the open faces and holding the cutter blade in one plane as the blade is forced through the tire.

Abstract: A stump lifting and crushing device for mounting to an end of a bucket arm of a digging machine includes stump lifting hooks and a bit pivotally closable with a counter bit for crushing stumps therebetween. The bit has an elongated narrow cutting surface which cooperates with an aligned counter surface provided by the counter bit. The counter surface extends transversely across the width of the cutting surface of the bit. The closing movement of the bits is limited by the cam-like engagement of a following member of the bit with a stop member of the counter bit.

Abstract: A cutting apparatus including a pair of blades respectively having linearly extending cutting edges so that the cutting edges are brought into sliding contact with each other to cut a member to be cut which is put between the cutting edges. The cutting apparatus is provided with press members for bringing the sliding contact surface of one of the cutting edges into press contact with the sliding contact surface of the other when the two blades are brought into sliding contact with each other, the press members being disposed along one of the blades. Thus, the sliding contact between the two blades is ensured independently of the rigidity of the blades. Accordingly, it becomes possible to reduce the thickness and increase the length of the blades.

Abstract: An apparatus for cutting aluminum siding or like articles includes a movable blade and a pair of fixed blades between which the movable blade is mounted to pivot. The fixed blades are each mounted on a rail that is rigidly connected to a flexible base member. An adjustment bolt is provided for exerting force between the rails. Force from the adjustment bolt causes the base member to deflect, thereby permitting the distance between the fixed blades to be varied. A second feature includes the provision of different sets of fixed blades, each configured to conform to a different type of siding. A novel movable blade is also provided.

Abstract: A paper trimmer including a base having an upper surface for supporting paper to be cut by a cutter structure pivotally mounted to one edge of the base. Structure is associated with the base for carrying associated office supply and office device elements, such as paper clips, an adhesive tape dispenser, a stapler, and a staple remover. Recesses are provided in a wall portion associated with the base for receiving the stapler, paper clips, and staple remover, and a cover is removably mounted to the wall for selectively closing the recess containing the paper clips. The tape dispenser is removably mounted to a rear edge portion of the base and forms an integral part thereof in the paper trimmer assembly. A lock is provided for selectively locking the movable cutter blade handle in a lowermost position. A fingertip protecting element is mounted to the base overlying the fixed cutter blade on the base.

Abstract: The present invention relates to heavy duty wood cutting shear attachments of a large scale for connection to a boom structure of a hydraulic excavator for cutting tree stumps and the like. The wood cutting shear includes a swingable jaw and a stationary jaw. The swingable jaw has a C-shaped frame with a knife like cutting blade affixed therein. The stationary jaw includes a stump supporting section having a blade receiving slot with a width of approximately the thickness of the cutting blade. Besides slicing through a stump placed between the jaws, the knife like blade may cooperate with the stump supporting section to shear portions of the stump being sliced.

Abstract: A machine for slicing a piece of a foodstuff has a base having front and rear ends and provided with at least one guide extending longitudinally therebetween, a carriage longitudinally displaceable along the guide on the base and formed with a seat adapted to receive the foodstuff piece and with a plurality of longitudinally extending and upwardly open slots at the seat, and a blade frame pivotal about a horizontal transverse axis at the rear end of the base and provided with a plurality of blades extending radially of the axis. This frame is pivotal between an upper position with the blades extending upward clear of the carriage from the axis and a lower position with the blades extending horizontally longitudinally and received in the slots. A link is connected between the carriage and the blade frame for displacing the carriage longitudinally from the rear base end to the front base end on displacement of the blade frame from the upper to the lower position and vice versa.

Abstract: A hydraulic shear attachment means for construction equipment having a support arm for pivotal attachment to said construction and a lower jaw for shearing. The arm includes flange members positioned on either side of the lower jaw to support the pivotable upper jaw. Arcuate tracks are positioned in the support flanges to receive a support pin extending through the upper shear jaw which rides in said tracks during actuation of the upper jaw.

Abstract: A shear attachment is provided with fixing means so that it can be replaceably mounted in place of a bucket on the end of an arm of an excavator, the attachment comprising a pair of co-operating shearing jaw members, one of which is attachable to the arm of the excavator and carries a piston and cylinder device for actuating the other jaw member.

Abstract: A heavy duty shear for a backhoe including a lower jaw having a shear blade and a guide blade lying along each other and tied together at their outer ends, an upper jaw defining a shear blade and having a wear plate or guide to engage and slide along the guide blade of the lower jaw, the guide blade of the lower jaw having its edge recessed below the level of the cutting edge of the shear blade of the lower jaw.

Abstract: A slicing apparatus for foodstuffs comprising a baseboard with a groove extending transversely thereof; a bore extending into one end of the baseboard through and beyond the groove; a U-shaped bar having two legs and a central portion; the first leg of the U-shaped bar extending into the bore beyond the groove and having a slot located immediately below the groove; said leg being frictionally engaged in the bore to prevent lateral movement in said bore but being rotatable in the bore; the second leg of the U-shaped bar having a transverse hole, a handle with a spindle carried within the hole in the second leg of the U-shaped bar and an adjusting nut carried on the spindle having a transverse slot; a cutting element with enlarged end portions carried within the slots on the leg of the U-shaped bar and the adjusting nut so that when tightened the cutting element may be utilized to provide a slicing apparatus for foodstuffs, and including a passage in the baseboard near the juncture in the baseboard of the bore

Abstract: A paper cutting device for use in a printer for cutting off a sheet of recording paper. A first cutter blade is supported on a frame of the device and a second cutter blade pivotably supported on the frame is movable over the first cutter blade to cut off a section of the recording paper. A support member on the frame acts as a fulcrum for the second cutter blade. A drive lever pivots the second cutter blade about the support member towards the first cutter blade to cut off the recording paper. The device is constructed to prevent malfunction of and damage to the device and printer in which it is utilized.

Abstract: A material handling and shear attachment for a backhoe enables the backhoe to be used in grasping and moving structural beams, pipes, cables, and the like and pivotally positions a cutting blade in the form of a hook on the end of a backhoe boom for actuation by a piston and cylinder of the backhoe. A fixed blade is secured to the boom forming a shear point between the movable cutting blade and the fixed blade. The fixed and movable blades are shaped and positioned relative to their pivotal engagement to move objects being sheared toward the blades pivotal engagement rather than away therefrom as in the prior art shears.

Abstract: An apparatus for cutting soffits, or the like, has a base and a hinged blade swingably attached to the base. A fixed profile blade attached to the base co-acts with the hinged blade for shearing lengths of soffit material. A blade guide is operatively connected between the base and the hinged blade for supporting the hinged blade during cutting. The profile blade is shaped to receive the profile of the soffit material for supporting the material during the cutting.

Abstract: A material handling and shear attachment for a backhoe enables the backhoe to be used in grasping and moving structural beams, pipes, cables, and the like, and pivotally positions a cutting blade in the form of a hook on the end of a backhoe boom for actuation by a piston and cylinder of the backhoe. A fixed blade is secured to the boom forming a shear point between the movable cutting blade and the fixed blade.

Abstract: A cigarette clipping device comprising an open ended casing, sized and shaped to accommodate a standard package of cigarettes. A knife edge is pivoted and slidably carried along one side of the casing and is received in any one of a plurality of parallel slots through the casing so that by pivoting the knife through a selected slot, the length of a cigarette package and, hence, the cigarettes therein, are reduced by a predetermined amount.

Abstract: A spiral cutting anvil is provided with indicia along its length, and a series of aligned gaps through which a cutting blade can be passed. A cutting blade comprises the working portion of a cutter assembly pivotally fastened to a slide plate which can be located at various positions with respect to the anvil. An adjustable stop is disposed at an appropriate point along the spiral, as determined by the indicia, and a length of packing material extends from the stop along the anvil to one of the gaps. The cutting blade is then urged through the gap, in guillotine fashion, to sever the packing at the correct point.

Abstract: A kitchen utensil for the preparation of food and adaptable and easily convertible to numerous uses such as chopping, juicing, dicing, slicing, comminuting, can opening and cracking of nuts. All food processed is collected in a receptacle forming a basic element of the apparatus. Novel means are disclosed for the quick but firm attachment of a chopping blade and can opener, to an operating lever, for use over the receptacle.

Abstract: There is disclosed a pinning machine having an improved plunger, an improved guide track and an improved knife assembly. The plunger has relatively movable sections threadably connected together to enable the length of the plunger to be changed so that tags can be pinned to different thicknesses of merchandise by changing the plunger length. The guide track includes a one-piece leaf spring which acts against one edge of a web of record members to urge the other side of the web against an edge guide. The spring is resiliently held in captivity in a recess without being secured in the recess as by fasteners. The knife assembly includes a pair of fixed knives separated by a gap and a movable knife guided by guide means in the gap. The movable knife is floatingly or loosely mounted so that the guide means is the sole means for guiding the movable knife relative to the fixed knives.