Abstract: A method and apparatus are provided for severing a moving thin strip material across the width of the strip by providing a thin rigid cutting element and urging the cutting element to move rapidly across the path of travel of the strip material in a plane transverse to the plane of the strip material. The strip material is contacted about one side edge and the cutting wire continues to rapidly move across the strip width from a first edge to a second edge to sever the moving strip. The method and apparatus are useful for severing strip material being produced at up to 4000 feet per minute and is not dependent upon the gauge or ductility of the material.

Abstract: A device for advancing rod-shaped material in a cutting machine, in which ring the cutting operation the material is held by at least one pair of clamping jaws that are arranged in front of the cutting plane in the material advance direction and by a pair of advancing jaws which are arranged after the cutting plane and can be displaced in the material advance direction, of which at least one advancing jaw can be moved transversely to the material advance direction for the purpose of clamping the material and by means of which the workpiece material can be displaced by an amount corresponding to the portion to be cut off and by means of which the severed material can be removed. The arrangement is such that the transversely movable advancing jaw can be displaced beyond the other advancing jaw and that the other advancing jaw can be moved out the corresponding lateral displacement path of the severed material for disposal of the cut piece of material.

Abstract: Wood-cutting apparatus with an insertable tooth in which the blade is positioned radially outwardly on a flat, elongated metallic plate and comprises two side edges, each of which: (a) extends generally radially (i.e parallel to a radius of the disc in which the tooth is inserted); and (b) is positioned ahead of the plate and other portions of the blade so that the side edges lead the tooth as the disc rotates in a predetermined rotational direction. The cutting edge of the blade extends along the most radially outward extent of a region of the blade connecting the two side edges, the connecting region being positioned rearwardly from those side edges in the rotational direction.

Abstract: A punch pin cutting edge configuration having a leading edge and a following edge is described. The leading edge engages a workpiece, such as paper, before the following edge. The following edge is at a steeper angle than the leading edge relative to the workpiece being punched. The cutting edge thus produced reduces the force necessary to punch through the workpiece.

Abstract: A side cutter tooth includes an element having a tip which extends upwardly substantially parallel to the plane of the body. Improved performance is achieved by designing the inner surface of the cutter tip to reduce "clearance" or to create "interference."A single-element side cutter tooth for scoring only one side of a kerf is also described.

Abstract: The invention concerns a stacker for a food loaf slicing machine of the type which includes first and second stack supports capable of being alternately positioned so as to receive food loaf slices of generally uniform thickness thereon as they are cyclically cut from the end of a food loaf at a slicing station into which the food loaf is advanced. When one of the stack supports has received a stack of N slices thereon, it is momentarily rotated a half turn outwardly of its slice receiving position under a force which exceeds a frictional force exerted between the underside of the stack and the upper surface of the stack support. As the one stack support is so rotated, the stack of slices present thereon is, virtually without being subject to any lateral force, allowed to fall freely downward as it is, until it is placed on a conveyor.

Abstract: A method for manufacturing egg timer-shaped absorbent pads in which an absorbent material continuous strip of uniform thickness and uniform width is feed along a longitudinal path and divided in the longitudinal direction, along a continuous wavy cutting line extending symmetrically relative to the median line of the strip, into two partial strips of periodically variable width having one straight edge on and opposite wavy edge, and are offset relative to each other and superimposed, one on the other, to form a composite strip having opposite hourglass-shaped edges and a central part having a thickness twice that of the opposite edges and cutting such superimposed, composite strip in the transverse direction in the zones of maximum width.

Abstract: A machine which separates pallet boards from their connecting stringers by sawing essentially through their attaching nails only, thus minimizing damage to the boards so that they can be reused.In order to separate and loosen the boards so that only the nails are cut a pressing device is designed to squeeze the sides of a pallet inserted within it. Then the loosened pallet, with the boards lifted so that there is space enough for a saw blade to be inserted to cut the nails only, is sent through the previously described sawing machine.

Abstract: Cross-cutter for cutting web material, in particular corrugated cardboard, comprising a pair of knife shafts which are tubularly supported for rotation on a core secured in the machine frame and commonly driven by a drive means, the knives temporarily contacting each other during the cutting operation under bias, if necessary, at least one end of at least one core having associated therewith a power unit which produces a flexural moment at the core such that the knives abut against each other under bias during the contact.

Abstract: An improvement is set forth in a sawing apparatus having a table supporting a workpiece, a fence for guiding the workpiece and an operator moveable electrically operated saw having a first normally biased off switch controlling application of electric power to the apparatus, the switch being positioned to be controlled by the hand of an operator which controls movement of the saw. The improvement comprises a second normally biased off switch connected in series with the first normally biased off switch, the second switch being mounted adjacent to the fence a sufficient distance from the saw blade to prevent the saw blade from contacting the operator's off hand when the off hand is activating the second switch and in a position whereat the off hand can, simultaneously with activating the second switch, adjust the position of the workpiece along the fence.

Abstract: A saw chain has pivotally interconnected chain links which includes cutting links and safety links and these links are effective as working links. The cutting links are each provided with a cutting tooth for cutting into wood and the safety links are each provided with a projection which limits the depth of the cut of the cutting tooth which follows the safety link. The pivot axes of the chain links lie in an action plane above the guide bar in the stretched portion of the saw chain when the latter is subjected to the pulling force exerted by the drive of the chain saw. The cutting links are pivotable with respect to this plane. In addition, the safety links can also be pivotable in this manner. When the cutting links are in their pivoted-out position under this pulling force, no clearance angle is available at the roof of the cutting tooth so that the cutting edge has no cutting effect. For this reason, there is no kickback when the saw chain is placed against the wood.

Abstract: The present invention is a rotary tool cutter tooth having a readily replaceable cutting portion and a tool employing the tooth. The tooth consists of an elongated shank for mounting the tooth on the tool body with a cutter element being bolted to the forward end of the shank. Preferably the back face of the cutter element is vertically grooved to receive the forward end of the shank so that the two are precisely aligned and any forces which tend to rotate the cutter element during use are resisted. The face of the shank that adjoins the cutter element may further be provided with a negative or inverted step which engages a corresponding step across the groove of the cutter element. These steps interlock to resist forces which would tend to translate the cutter element radially outward when in use. The cutter element may be made of a tool steel or other hard alloy, whereas the shank is typically formed from a mild steel.

Abstract: A high impact device, as for producing an impact of 1,000 foot pounds or more, includes a ram which is engageable by a pair of rotating flywheels. The ram may impact a tool, as of a chisel type adapted for demolition purposes, or having a enlarged head for percussion purposes, or other types or purposes. By terminating the engagement of the flywheels with the ram prior to its impact against a tool or similar object, the vibration normally associated with a demolition or percussion device is avoided. Such termination of engagement also reduces reverse shocks and conserves the energy of the rotating flywheels. In one embodiment, the flywheels are moved inwardly and outwardly of the ram through a linkage connected to a solenoid, with each flywheel supported between a pair of arms and alignment of the axis of each flywheel with the side of the corresponding ram being maintained by a torque tube extending between the arms.

Abstract: A perforating blade for creating extremely fine perforations in plural plies of a multiply ply paper construction including a perforating edge defined by a plurality of perforating elements separated by notches. Preferably there are about 50 or more of each of the elements and the notches per lineal inch with the notches having a length along the cutting edge of no more than about 0.010 inches. A relatively small number of the perforating elements, at generally uniformly spaced locations along the edge have lengths of about 0.03 inches or more with the remainder of the elements having lengths substantially less than 0.03 inches. The blade provides lines of perforation that when separated, have the appearance of the edge of a so-called cut sheet.

Abstract: A cross cutting guide fence and gauge for radial arm saws comprises a bar member to be mounted in a conventional transverse saw table slot. An upwardly opening saw blade clearance kerf extends transversely across the member. Sawn length gauging scales on display panels are carried by the bar at opposite sides of the clearance kerf and are longitudinally adjustable. For accurate duplicatively gauging the length of fixed length sawn workpieces, a replaceable gauge block may be selectively adjustably longitudinally mounted on the front face of the bar at either side of the kerf.

Abstract: The method and apparatus provide for transversely separating and laterally trimming or finishing continuously passing strips in processing lines for strip material, such as metallic strip. The strip is first severed in transverse direction and immediately thereafter is trimmed at the sides thereof. The time required for adjusting the lateral shears is approximately equal to that of the coil exchange operation leading to the time gained, and stoppages of strip in the operating stages are precluded.

Abstract: The present invention is a rotary machining tool and a method of making it using an easily replaceable cutter element assembly. A circular saw is exemplary of a cutting tool which can be made using the present invention. The cutter element assembly comprises two portions. The first is an inverted, generally U-shaped clevis with spaced apart side portions that fit over the circumferential edge of a sawplate. The clevis has an upper portion which extends outwardly from the sawplate edge thereby defining a tooth retaining socket between the sawplate edge and the clevis. The side portions of the clevis are apertured to accept a pin for attachment to the sawplate which has a corresponding aperture. A buttress attached to the clevis normally bears against the leading edge of a gullet and prevents rearward rotation when in use. The second member is an insertable tooth having a head and an elongated tapered shank. The shank has a taper on its upper surface sufficient to form a self-releasing taper, usually between 3.

Abstract: An attachment for a miter gauge of the type having an arm slideably moveable in the slot of a work table so that a wooden workpiece is moved into engagement with a table saw blade. The attachment includes a fence that is connected to the miter gauge body, and a stop member that is attached at a selected position along the length of the knee. The fence has a slot which receives the head of a threaded fastener. The other end of the fastener is connected to a cam mounted within the stop member in such a manner that the user can lock the stop member at a selected position along the fence by turning a knob attached to the cam.

Abstract: A turning arm has an inverted U-shape and is supported for rotational movement by two pairs of horizontally disposed crank shafts. A lower cutter holder supporting base is mounted for movement only in the direction feeding of material to be cut. A turning table is rotatably mounted on an upper surface of the base for rotation about a substantially vertical axis, and an upper cutter holder having an upper cutter is rotatably mounted on the turning arm above the lower cutter holder for rotation about the substantially vertical axis. The upper cutter and lower cutter are constrained to move together in the horizontal feed direction, while the upper cutter is permitted to reciprocate vertically relative to the lower cutter.

Abstract: Boiler tube panel removal apparatus includes elongated guide rail structure for securing to a boiler tube panel adjacent a desired cut region, and a cutting tool assembly for mounting on the guide rail structure. The cutting tool assembly includes a support carriage with spaced guide structure for engaging the guide rail structure, main pivot structure secured to the support carriage having a pivot axis extending transversely to the guide rail structure, secondary pivot structure secured to the support carriage, and plunge cut link structure mounted on the secondary pivot structure. A cutting tool that is mounted on the main pivot includes a drive motor, a manual motor control, a drive shaft and a tube cutter disc mounted on the drive shaft. Manual operation of the plunge cut link structure rotates the cutting tool about the main pivot axis in plunge cutting action through a panel of tubes adjacent the guide rail structure.