Abstract: A precision blanking tool mounted in a press, which may be a transfer press, comprises an upper part with an upper tool support and a lower part with a lower tool support. One hydraulic unit is accommodated in the upper part of the precision blanking tool and another in the lower part. The upper hydraulic unit is inserted with the upper tool support in an interchangeable frame and the lower hydraulic unit with the lower tool support in another frame. The hydraulic units are controlled with pressurized oil by drive means forming a separate unit.

Abstract: The band saw of the present invention comprises a base provided with two pillars supporting a saw table. A casing of swan-neck shape forms the frame of the machine. This casing has a wall adjacent to a wall of the base. A first aperture having the shape of an arc of a circle, cut out in the casing wall, faces a second, rectilinear aperture in the base wall. A first locking member pivoted on the casing wall passes through the two apertures. In addition, the base wall is cut out in such a manner that a second locking member fastened to the casing wall cooperates with the top edge of the base wall.

Abstract: A hay bale cutting chain with each pair of side links including a cutting link. The chain is without any protrusions other than the cutter portions, e.g. depth gauges and bumper portions are eliminated. The cutting edge, from a side view, is substantially vertical, and the side plate configuration is otherwise without a hook angle. The top plate is terminated short of the chain's mid-point to allow long strands that can get trapped under the top plates of the cutting links to escape. The chain is a small pitch chain, e.g. three-eights inch pitch, and drive at a rapid speed so that small bits are removed that more closely simulate sawdust than wood chips as in typical wood cutting.

Abstract: A center drive cutter chain for mounting on a cutter bar. The chain comprises center drive cutter links having forward and rearward pivot openings and pairs of oppositely disposed side links pivotally interconnected by pins to the cutter links and alternating non-cutter drive links. The side links each have forward and rearward pivot openings and forward and rearward bar engaging undersides. For the side links following a center drive link, the width of each side link between its forward pivot opening and forward bar engaging underside is less than the width between its rearward pivot opening and rearward bar engaging underside. When the axes of the pins extending through the pivot openings of the cutter links and following side links are substantially in a plane, the forward bar engaging undersides of the side links are spaced apart from the adjacent side rails of the bar.

Abstract: An apparatus for removing scrap around the die cut blanks in a web comprising a pair of rolls through which the web is passed, one roll carrying flexible pointed fingers arranged substantially parallel thereto for impaling the scrap pieces and the other roll carrying resilient material opposed said flexible pointed fingers to contact the scrap pieces so they may be impaled by the pointed fingers. Scrap pieces are impinged on the pointed fingers as the scrap pieces pass between the fingers and resilient material before the nip of the rolls and are pushed outwardly from the surface of the roll by the flexible point finger for removal by a comb, brush or vacuum means.

Abstract: A sawchain designed for resharpening while it is idling around the drive sprocket has cutting links (16) on the left and right sides with depth gauges (10) and spade-shaped cutters (22) which between their front (12) and rear borders (14) have a fold (13) substantially perpendicular to the lengthwise direction of the sawchain with the concave side outwards away from the central plane, permitting the rear border (14) and the side edge (12) to contact the side walls of the kerf. The depth gauge (10) is placed so far forward on the cutter links (16) that the chip thickness (19) is sufficient when the sawchain is straight. The intermediate drivelinks (21) may be provided with raker teeth (17) located so far to the rear that they do not touch the bottom of the kerf when the chain is straight, but only loosen and convey the chips cut by the cutters (22) of the cutter links (16).

Abstract: A device for punching two parallel narrow slots in a sheet of paper at 45 degrees to one edge of the sheet and spaced apart slightly less than the corner-to-corner diagonal dimension of a card which is to be attached to that sheet by inserting diagonal corner segments into the slots. The slot-punching device has a generally flat base with an adjustable stop. A lever arm pivoted on the base carries two punches with respective narrow blades for reception in the base when the lever arm is lowered. A reciprocable head on top of the lever arm is depressed to push the punch blades down into the base when the lever arm is down.

Abstract: A device for storing and slicing foodstuff in the shape of an elongated bar has an elongated housing and a carrier assembly having an elongated and flat base member being slidably receivable within the housing. A cutting utensil housing is mounted on the top wall of the housing and defining an elongated cavity with an aperture. The carrier assembly includes a cover member perpendicularly mounted at one of said ends for cooperatively closing its opening and the apertures of the cutting utensils cavity when the carrier assembly is completely housed within the housing. A plurality of upwardly mounted post members along the lateral edges of the flat base member, by opposing pairs, so that a separation is maintained between adjoining post members to allow a cutting utensil through for cutting the slices form the bar. When the device is being opened, the cutting device is pulled out simultaneously by virtue of an inwardly extending hook member mounted on the cover of the carrier assembly.

Abstract: A sword blade is formed of a rib (3) connected by stress concentration studs (19) to a pair of extension strips (2), so that the moment of inertia of the cross section of the rib, with respect to a plane of inertia (x'-x) passing through the concentration studs, is equal that of the strips, all along the length of the sword. The concentration studs concentrate stress in the blade and are deformed and break, thus alerting the user to discard the sword, end faces (10b, 14a) of the rib and extension strips are formed parallel to the plane of inertia, for distribution stress across these faces, to prevent the starting of cracks causing the sword to break.

Abstract: An automatic feed system for a tube cutter is disclosed which automatically feeds a cutting tool into a tube and also automatically resets the cutting tool to its initial position once the tube has been cut. The automatic feed system has a cam element rotatably mounted in a cutting head defining a cam surface eccentric with respect to the axis of rotation of the cam element. A cam follower is formed on a cutting arm which is pivotally attached to the cutting head and has a cutting wheel attached thereto. The eccentric cam surface includes a substantially flat surface portion which lies in a plane extending substantially parallel to the axis of rotation of the cam element which, when contacted by the cam follower, allows the pivot arm to assume an initial, retracted position. As the cam element rotates, the eccentric cam surface and the cam follower urge the cutting wheel into the tube wall.

Abstract: A fixation stake for securing articles such as benthic barriers to the earth comprising hollow thin-walled elongated plastic body and an enlarged head portion at one end thereof, and a method and apparatus for inserting the stakes into the ground comprising a rod portion of a size suitable to be inserted through the hollow bore of the stakes, the apparatus having an upright handle portion and a horizontal foot peddle for insertion of the stakes into the ground.

Abstract: A saw blade and saw-blade support are provided for a power-driven saw. The saw blade has planar cutting members and planar link members which are pivotally connected together. Each cutting member has a recess for receiving a portion of a link member. The saw-blade support is a blade support face, including a generally straight first section for bearing the cutting load, an arcuate second section merging with the straight first section and defining an end of the elongate member, and an arcuate third section merging with the arcuate second section, but having less curvature than the second section. The end of the saw-blade support carried by the power drive components has an outwardly-flared guide wall for leading said saw blade from the power drive onto the saw-blade support.

Abstract: A machine for slitting metal sheet has a bridge-type frame provided with upper and lower beams supported on posts. In the space between the two beams are upper and lower powered arbors and also upper and lower storage arbors which align respectively with the upper and lower powered arbors. Each powered arbor supports and turns several knives which are mounted on hubs along those arbors, and these knives when not needed may be moved, along with their hubs, onto the aligned storage arbors. Each knife is captured in a carriage which moves along one of the beams and contains back-up rollers which bear against the knife to prevent its arbor from deflecting under the spreading force exerted by the metal sheet as it is slit. The hubs have a wide stance, and accordingly the knives on them do not acquire a wobble when the hubs are secured on their respective arbors; yet notwithstanding the wide stance, the knives may be brought quite close together.

Abstract: Adhesive is delivered to a work site by providing said component in a cartridge having an orifice at one end and a slideable plunger at the other end. An axial force is applied against the plunger, intermittently pushing the adhesive from the cartridge. The force is applied by an impact wrench producing slow speed, moderate to high torque, and limited duration of force.

Abstract: A plate cutting device is provided which is capable of being used to cut a plate along a curve. It is a design directed to the disadvantages such as labor-consumption, awkwardness, incapability of cutting along a curve, and incapability of cutting a large size plate of conventional cutting tools.The device is characterized in that it comprises a body associated with a curved frame, a toothed rolling wheel, and a cutting wheel. The two wheels are arranged slantly and are at a small distance from each other.In plate work, a plate with a line drawn on it is put between the wheels and the ratchet rotating wheel above the rolling wheel is swung such that the toothed rolling wheel is rotated in the same direction and the teeth thereon grab into plate and cooperate with the cutting wheel to cut the plate. The cutting direction can be controlled simply by moving the plate in a suitable direction.

Abstract: Strip retainer and stripper which is used on a stamping and forming machine for stripping or removing the stock material from the pilot pins and punches when the punches and pilot pins move from their closed positions to their open positions, comprises one or more wires in the operating zone of the machine. Each wire extends transversely across, and intersects, the path of reciprocation of the punch assmebly. The wire does not intersect the path of reciprocation of the pilot pins or the punches and is located between the punches and pilot pins and the surface of the stock material. The ends of the wires extend beyond the path or reciprocation of the punch assembly and are secured by fixed securing devices.

Abstract: An explosive tool driving apparatus is provided having an improved extractor mounted upon its barrel holder, and the claw of which is meant to retain the case of a propulsive charge during opening of the apparatus. A groove for passage of the claw of the extractor is formed within the barrel of the apparatus.

Abstract: An explosive powder charge operated fastening element setting device includes a housing supporting a handle. A damping unit is arranged between the handle and the housing so that the handle is displaceable in the setting direction of the setting device against a force developed in the damping device. A fastening element guide is mounted in the housing for movement opposite to the setting direction against a spring force. The force of the damping unit is greater than the spring force. The damping unit includes a cylinder containing a first fluid medium acting on a piston pressing, outside the cylinder, against the housing with a second fluid medium within the cylinder pressurizing the first fluid medium.

Abstract: An explosive powder charge operated setting device includes a housing, a barrel displaceably mounted within the housing, and a combustion chamber located in the rear end of the barrel. An outflow opening extends through the barrel transversely of its axial direction and is in flow communication with the combustion chamber. A slide, including a sealing piston, is displaceably positioned within the outflow opening the regulating the flow of explosive gases out of the combustion chamber. A handle is engaged with the slide for selectively positioning the sealing piston in the outflow opening.

Abstract: An angularly adjustable band saw is disclosed which provides the desired angular adjustment of an endless band saw blade relative to a workable surface for bevel and/or miter cutting of a workpiece. The worktable surface is part of a supporting worktable that includes a saw blade slot extending through the worktable surface. A frame support is fixed to the worktable below the worktable surface and a movable frame is operatively connected relative to the frame support. The movable frame includes an upper band saw supporting wheel above the worktable surface and a lower band saw supporting wheel below the worktable surface, with an endless band saw blade mounted for movement about the upper and lower band saw supporting wheels, including through the saw blade slot in the worktable surface.