Abstract: A correction circuit automatically calculates a distribution of actual cut lengths, cut from a workpiece by a cutting machine and automatically corrects the cutting operation when the center value of the distribution of a plurality of cut lengths differs from the desired cut length by a predetermined amount.

Abstract: A friction-free fence for a work table or the like which incorporates a plurality of bearing members in an upstanding work piece guidance wall thereof. The fence is particularly useful for guiding sheet material such as plaster board and the like through a self-feeding cutting device. At high cutting rates, prior art fences frictionally retard movement of the sheet material.

Abstract: A saw guide system having a mechanism for applying an oil film to individual saw blades is described. The use of a lubricating film greatly reduces the accumulation of heat in the sawing system and allows operation of the sawing system without the introduction of cooling water. Saw guide blocks having both common and separate distribution networks for oil and water may be utilized in the saw guide system.

Abstract: A shear for cutting a stock between a feed conveyor and a discharge conveyor has a pair of rollers which can engage the stock when the movable blade is in its upper position, the slide having a stroke equal to the distance by which the discharge conveyor is located below the feed conveyor.

Abstract: Prestuck food casing films are made with an apparatus having a perforating roll with multiple knife blades. The perforating roll is linked to a power roll so the casing being pulled through the apparatus drives the power roll which turns the perforating roll to perforate the film. The power roll and the perforating roll turn at the same peripheral speed so any change in velocity of the advancing film automatically adjusts the speed of the perforating roll eliminating tears or enlargement of perforations.

Abstract: A punch press for cutting windows in a ball cage. The ball cage is held in an established position. A first press assembly includes a first frame member and a punch assembly on a first surface of the cage, for cutting a portion of the cage. A second press assembly includes a second frame member, a cutting bed for supporting a second surface of the cage, said first and second surfaces being opposite surfaces of the cage, around the portion to be cut by the punch assembly. It also includes a counterpunch for opposing the punch assembly on the second surface. Pressure is applied to the second press assembly toward the punch assembly.

Abstract: A notcher includes a die having a die bore and a notching cutter received in the die bore. The die bore is connected to a suction device, and the notching cutter is formed with an air hole which opens to the atmospheric air and is communicated with the die bore. Accordingly, notching chips are smoothly discharged.

Abstract: Apparatus for longitudinally and transversely trimming articles moldingly formed on plastic sheet which is brought by means of a pair of clamp chains between longitudinally movable pointed tip knives and longitudinally extended holder members as well as transversely movable pointed tip knives and transversely extended holder member respectively held in retracted position and then trimmed by moving said knives and holder members to forwarded position and by moving said knives. Said sheet is formed in advance with transversely and longitudinally extended ridges so that said moving knives cannot sever the sheet at said ridges, whereby trimmed articles fall down by gravity and waste portion kept in one piece is brought out by said clamp chains to be collected.

Abstract: An improved can opener for removing the tops of cans of both straight sided tin can containers and containers having recessed tops such as commonly found in extruded aluminum cans used in the beverage industry. The improvement modifies the conventional hand held, two handle can opener commonly available of the type in which the handles pivotally separate to allow entrance of the can bead for engagement by lower traction wheel and an upper cutting wheel, the improvement being an extended rest protruding perpendicularly outward and against which the recessed top containers may be positioned and held in that position in order to be engaged by the traction wheel upon the lower end of the bead and the cutter wheel through the top.

Abstract: A mandrel apparatus for a tube cutting machine in which the mandrel apparatus is moved into the open end of the tubing advancing along the feed axis of the tubing as the tubing is moved by the feed means into a cutting position. The mandrel apparatus includes a stop member which is mounted for movement between a stop position in which it is positioned across the tube feed path at a location along the feed axis between a rest position of the mandrel and the cutting station and a clear position in which it is pivoted upwardly clear of the feed path. The mandrel apparatus further includes a stripper member having a stripper surface positioned along the feed axis across the feed path between the stop position of the stop member and the rest position of the mandrel.

Abstract: A method and apparatus for simultaneously cutting a plurality of picture frame mats with picture display windows in a single operative procedure by initially arranging the mats in a reverse and inverted order and cutting them with an apparatus mounting a plurality of cutters, one for each mat, at an angle to the planes of the mats and thereafter separating and rearranging the mats to frame the picture in their desired picture frame array.

Abstract: A door and hinge mechanism particularly adapted for use in a conical hopper where the door may be on the down side of the hopper. The hinge pin connecting the fixed hinge element with the movable hinge element is placed under tension by springs such as Belville washers so that the hinge pin is not freely rotatably in the fixed hinged element. The movable hinge element includes a cam member which rotates about an off-set axis until the cam surface engages the hinge pin to prohibit further free rotation of the movable hinge. A force must then be applied to the door supplementing gravity to rotate the movable hinge element and hinge pin relative to the fixed hinge element to thereby open the door.

Abstract: To achieve reliable fastening of a toothed cutter carrier on the toothed bearing surface of a tool body, and to achieve favorable force ratios, in a rotary cutting tool, in particular a drilling head, the tooth formation of the bearing surface is constructed in a sawtooth shape with steep tooth flanks and inclined tooth flanks, the steep tooth flanks being disposed substantially on that side of the teeth which is orientated towards the cutting element of the cutter carrier. The tooth formation on the cutter carrier is constructed so that it is substantially similar to the tooth formation of the bearing surface for interengagement therewith.

Abstract: A punch press having a self-adjusting stripper member is disclosed whereby stripping of the press punching tool from a workpiece is automatically effected attendant to effecting a return stroke of the press actuator. The construction includes a press frame upon which is mounted a double-acting fluid actuator, with the actuator being mounted for limited relative movement with respect to the frame. A piston rod of the actuator carries a punching tool for effecting punching of a workpiece. Notably, a stripper member is operatively connected to the housing of the actuator for movement therewith with respect to the press frame, with the stripper normally positioned to provide a large running clearance relative to the workpiece.

Abstract: An integrated factory system affords precision machining and inspection of aircraft turbine blades, as well as other metal parts having two generally opposite principal surfaces. It uses only two stages of chucking by the meltable matrix method. After embedding one of the surfaces in the first chuck, which positions the blank relative to a plane of reference, the other surface is machined and inspected according to programs relative to that plane. Without release from the first chuck, the part is transferred to a second chuck for embedding the machined principal surface relative to a second parallel plane of reference a precise distance from that of the first chuck. Machining and inspection is now completed relative to this second plane of reference. Improved matrix chucks are provided, as well as new chucking apparatus which establishes the planes of reference.

Abstract: An air ejector system for use in a horizontal or vertical stamping press which reciprocates the moving member of a die set to produce an annular product. Air is introduced through a central punch for shedding and ejecting a slug. Air is also introduced through an annular knockout for shedding and ejecting a coaxially produced product. A resilient member retains the knockout in a position rearwardly of the punch and button die during the forward punching stroke. Valving sequentially introduces the air through the punch and knockout at the appropriate points in the reciprocating stamping cycle.

Abstract: A method of making a suction catheter having grooves and suction holes in the grooves is disclosed which includes the step of clamping a tube to effect a bulge and moving a knife longitudinally of the tube to skive the outer portion of the bulge to form a groove after clamping pressures are removed. Holes are formed in the bottom walls of the grooves. Skiving apparatus is disclosed which includes a clamping device for positioning and bulging a tube adjacent one end, and a knife relatively movable longitudinally of the tube to skive the bulge.

Abstract: A lumber mill system includes an endless lower spike chain conveyor, log loading charger for loading logs one at a time onto such charger such that the geometrical center is laterally offset from the longitudinal centerline of the conveyor and microprocessor for determining the optimum amount of lateral offset, if any, to maximize lumber recovery from the log. The log loading charger includes a frame pivotable about a pivot axis, axial carriage supported by the frame for horizontal movement in the same direction as the lower conveyor, and tandem radial carriages supported by the axial carriage for movement toward and away from the pivot axis. The radial carriages support clamp arms for gripping the log. The charger operates to grip a log adjacent the lower conveyor, swing the log above the lower conveyor to the predetermined laterally offset position, and lower the log onto the lower conveyor while simultaneously moving the log downstream with the conveyor.

Abstract: This invention sets forth a workpiece adjusting mechanism, a quick release and removal die holder and a punch and stripper unit which can be adjusted and removed quickly for saving production time.

Abstract: In the coking of coking coal according to the compression process the coking coal is compressed by power hammers before its introduction into the coke oven, whereby these hammers having elongated hammer rods are lifted by means of driven cam disks acting upon them by sections, and then released to drop. The cam shafts bearing the cam disks, corresponding to the number of power-hammer rods, are individually pivoted. Their bearing points on both sides of the hammer rods are movable synchronously and in the same direction and are uniformly actuated by a hydraulic system. Thereby, the individual cam shafts can be driven and pressed against the individual power-hammer rods, according to given data. An even and uniform lifting of all rods and power hammers is achieved by that.