Abstract: A hot profile-steel workpiece having a flange width dimension, a web height dimension, and a web thickness dimension is rolled in a roll train including a reversible univerial rolling stand and a flange-compacting roll stand unstream therefrom. According to the invention one of the height, width, or thickness dimensions of the incoming workpiece is reduced upstream of the flange-engaging compacting roll stand. Normally the web height dimension is reduced in a roll stand immediately upstream of the universal and flange-compacting stands. Furthermore the workpiece has a web with extra-thick parts and these extra-thick parts are rolled out by horizontal rolls of a roll stand that engage this web. The flange-compacting roll stand engages the faces of the flanges. With this system it is possible to make the web of the incoming workpiece either shorter or taller, that is it can either be compacted or rolled out.

Abstract: A process for preparing a hollow aluminum extrudate for use in a vacuum characterized in that dry air or pure oxygen is supplied to the hollow portion of the shaped material being extruded. During the extrusion, the inner surface of the extrudate defining the hollow portion is held out of contact with the atmospheric air containing water to form a compact oxide coating on the inner surface without permitting formation of any hydrated oxide coating.

Abstract: During the rounding of sheet-metal blanks, problems have hitherto arisen in the rounding apparatus (2) because the leading edge of the rounded sheet-metal blanks struck against a stationary stop at the end (48) of a slit (24) between an inner shell (20) and an outer shell (22), so that the sheet-metal blank rebounded and did not have a defined starting position for further conveying. In order to overcome this problem, the stop is constructed in the form of a pivotally movable damping flap (50) on which there is formed a catch hook (54) which closes the slit (24) at its end (48). Compression springs (70) are disposed between the damping flap (50) and the inner shell (20). Under the impact of the sheet-metal blank, the catch hook (54) yields and urges the damping flat (50) about the pivot axis (52) pressing its front portion (50') into the slit (24) as a result of which the sheet-metal blank is temporarily clamped against the outer shell (22).

Abstract: A tool pack includes a cradle (30) that defines a space (36) into which ironing die assemblies (80, 100, 106) and a plurality of lubricating rings (78, 102, 104) each associated with an ironing ring are mounted. A lubricant manifold (152) is configured so that the lubricating rings can be manipulated into position to provide communication between the rings and the manifold. The cradle has a pair of spaced locator bars (52) exposed in the space and a cover (40) is pivotally mounted on the cradle to close an access opening and is locked by a clamp mechanism (44). The cover has deflectable metal members (62) that engage the ironing assemblies and lubricating rings and apply pressure to force the assemblies into engagement with the locator bars and also provide sealing engagement between the manifold and the lubricating rings.

Abstract: An apparatus and method for continuously manufacturing optical fiber cable in which optical fiber is encased by an hermetically sealed homogeneous metal tube formed from flat metal strips. A first assembly of mating rollers having successively different shapes forms the flat metal strip into a partially formed tube having a longitudinal gap. Optical fiber is guided through the gap to lie within the partially formed tube. The tube is then closed by a second assembly of mating rollers having successively different shapes. A laser beam is used to weld the seam closed without filler metal and without heat shielding between the seam and the optical fiber. The finished tubing with optical fiber therein is sunk by being drawn through wire dies to reduce the diameter. A wheel draws the tubing through the apparatus at constant speed to effect a uniform weld line.

Abstract: A billet (10) is pressed with a first blocking punch (36, 38). Thereafter, the billet is rotated approximately 90.degree.. A second punch (50) is pressed against the billet while a split ring die assembly (58) substantially surrounds the billet and constrains outward flow of the steel. The split ring die assembly includes projecting regions (64, 66) matingly received in recesses (14, 16) created by the first blocking punch. A finishing punch (90, 92) is pressed through the billet to complete formation of openings (94, 96). Preferably, a trimmer (100) removes any flashing from the finished billet.

Abstract: A strap coiling mechanism comprising a driven roller one having a serrated peripheral surface, a pinch roller for rotatably mounted at one extremity of a pivoted crank lever 8, said pinch roller being biassed towards the driven roller 1 by means of a compression spring 6 engaging the other end of the crank lever 8 and part of the supporting frame for the mechanism. The driven roller 1 and the pinch roller 4 between them define a nip N into which strapping S to be coiled is introduced. In the event that the strapping includes a Seal' or any other section modulus change, a pinch roller 4 will be deflected away from the driven roller 1 against the action of the spring 6 to allow the seal to pass through the nip N. A deforming roller 3 is rotatably mounted immediately behind the Nip and has a serrated peripheral surface which is engaged by the strapping S to form the strapping into a shelf closing coil C.

Abstract: An improved forging billet of dual alloys and an improved method for forging a dual alloy billet. The billet is cylindrical in shape having an outer tubular portion of one alloy and another alloy filling the central opening through the tubular portion, the ends of the billet include a radial flange of the tubular alloy extending a short distance outward at each end of the billet and having a skirt extending from the outer end of the radial flange axially away from the body of the billet to form a circular opening at each end of the billet which has at least as large a diameter as the outer diameter of the outer tubular portion, and a sandwich structure positioned within each of said circular opening including a plurality of layers of a powdered lubricant, preferably boron nitride lubricant, separated by foil layers, preferably a high purity nickel foil.

Abstract: A pipe bender comprising a base block, a pipe feed mechanism mounted on the base block for feeding a pipe longitudinally thereof, and two pipe bending sections mounted on a common support frame connected to the base block to be reciprocable in directions perpendicular to the pipe. The bending sections each include a fixed die assembly and a clamp die assembly. The clamp die assemblies of the respective pipe bending sections are swingable in opposite directions.

Abstract: A tube bending apparatus of the radius block and slide block type is provided with a one-way drive means for permitting selectable driven rotation of the radius block means thereof in the bending direction while preventing reverse driving. Interchangeable radius block and slide block means are provided to accommodate different size bend radii and tube diameter to be accommodated. The apparatus also includes slide block retainer means for accommodating different height slide blocks, as well as tube clamping means for accommodating different tube diameters. The slide block means may be marked with indicia for aiding in the gauging of center-to-center dimensional gain in finished 45 and 90 degree forward and reverse bends prior to forming the bends. A method for pre-gauging center-to-center dimensional gain of such bends is also described. A second embodiment of the tube bending apparatus includes radius block and slide block means having inclined concavities for forming radiused overlapping 360 degree bends.

Abstract: A mobile nozzle device for spraying a lubricant to the surfaces of dies of a forging press in separated state. The device has a lever which is pivotally connected at its upper end to the frame of the forging press and connected at its intermediate portion to the press slider through a link such that it swings about the upper end pivot in accordance with the reciprocal movement of the press slider. The device further has a mobile nozzle secured to an end of a horizontal bar which is movable horizontally and reciprocally in engagement with the lower end of the lever, so that the mobile nozzle is movable into and out of the press in accordance with the vertical stroking of the press slider. This nozzle device can operate without fail in a timed relation to the operation of the press slider.

Abstract: The method of forming a nut-like member especially adapted but not limited to use with an earring clip in which a threaded screw provides wearing adjustment. The method includes forming a vertical strip of sheet-like material with a pair of smooth bore openings disposed in longitudinal alignment and provided with a pinched and reformed chordal flat. Thereafter the strip is transversely bent in a generally U-shaped configuration along a line between the openings so as to form a pair of opposed legs each including one of said openings.

Abstract: An upper tool support (4) for a stamping machine or the like has at least two stamping tools (5) adjacently located. Each stamping tool (5) preferably includes a punch (7), a punch support (8) and a retaining nut (9) connecting the punch (7) with the punch support (8). The upper tool support (4) is provided with a support body (10), a receiving plate (11) with tool guides (12) for each stamping tool (5) disposed next to each other in the receiving plate (11), a locking cap (14). The locking cap (14) is connected to the support body (10) to be pivotable around a pivot axle (13), to be thus removable in a plane perpendicular to the direction of stamping. The upper ends of the stamping tools (5) are movably guided in the direction of stamping and limited in one direction by support flanges (15). The guidance of the stamping tools (5) is not influenced by the fastening of the locking cap (14) on the support body (10), because the locking cap (14) carries the receiving plate (11).

Abstract: Elongated straight cylindrical metal rods are threaded along opposite end portions, and the cylindrical outer surface of the center portion of each rod is marked to form a visual indicator of the longitudinal center of the rod. The straight rods are successively inserted into a rod bearing machine having a mandrel with a mark indicating the center plane of the bending operation. The mid-point mark on each rod is aligned with the center plane mark on the machine, and the rod is bent to form a precision U-bolt. Preferably, the mark identifying the center of each rod extends circumferentially around the metal rod and is formed by a stripe or color contrasting ink directly on the rod or on a label attached to the rod to provide a permanent mark which does not require rotating the rod to find the mark.

Abstract: A wire straightener and multiple preform rollers prepare a continuous length wire for further forming by multiple form rollers having multiple spaced apart notches formed in an annular edge of the rollers. Some notches skip a section of the wire to be headed, and other notches serve to form barbs in the wire. In a first embodiment, after the formed wire is fed to a gripper housing where the wire is cut to a predetermined length, the skipped section is punched to create the fastener head. In a second embodiment, the formed wire is cut and fed to a rotary heading machine.

Abstract: Direct softening heat treatment of rolled wire rods comprises the steps:providing wire rods by hot- or warm-rolling, andimmediately following rolling, coiling the rolled wire rods in an annealing furnace. Apparatus therefor comprises an annealing furnace provided with an externally or internally built coiler for rolled wire rods disposed adjacent to a rolling line of said wire rods, the coiler being disposed so as to directly receive the rolled wire rods.

Abstract: An apparatus for bending single or multiple stacked flat sections of finned heat exchanger coil into a predetermined configuration having one, two or three generally 90 degree bends. The coil is moved along a support table to a bending station by a gripper mechanism engaged with the rear end of the coil. A portion of the coil forward of the position to be bent is clamped against an anvil by a clamping pad. A hold-down assembly prevents another portion of the coil rearward of the bend portion from raising off the support table as the anvil and clamping pad are rotated by a supporting spindle to bend the coil to the desired angle. The gripper mechanism is accelerated linearly forwardly in coordinated movement with the rotational acceleration of the spindle to prevent distortion of the coil fins by crowding material into the bend. The gripper mechanism is moved linearly along the support table by a controlled ball screw drive mechanism.

Abstract: A lower tool support for a stamping machine or the like having a lower frame and a tool saddle with a saddle plate, movably disposed on the saddle surface of the lower frame, with adjusting devices for the adjustment of the tool saddle in relation to the lower frame in the plane of the saddle surface and an arresting device for fixing the tool saddle on the lower frame being provided, the saddle plate of the tool saddle having at least one lower flange and the arresting device having at least one fastening flange formfittingly overlapping the lower flange, the fastening flange in the plane of the saddle surface having an exactly determined relative position in respect to the lower frame, thus securing the saddle plate against vertical lifting from the saddle surface.

Abstract: An upper tool support (4) for a stamping machine or the like has at least one or several stamping tools (5) adjacently located. Each stamping tool (5) has a punch (7) a punch support (8) and a retaining nut (9) connecting the punch (7), with the punch support (8). The upper tool support (4) is provided with a support body (10), and a receiving plate (11) with a tool guide (12) for each stamping tool (5) extending in the direction of stamping. the upper end of the stamping tool (5) is limited to move in the stamping direction by support flanges (15), being thus guided in the direction of stamping. A receptacle (17) for the upper end of each stamping tool (5) is provided in the support body (10), above the tool guide (12) and below a power transfer area (16). The receptacle (17) is bridged by means of a power transfer rod (18) which is generally movable in a direction perpendicular to the stamping direction. A lifting lever (20) is provided on the support body (10) associated with each stamping tool (5).

Abstract: An improved fastener provides axially extending teeth on a narrow shoulder adjacent the fastener head. The teeth bite into sheet material, and are particularly useful in biting into the surface of a thin sheet which is fastened to a thicker sheet material. The teeth extend from a shoulder formed on a medial collar between the head and a threaded shank. The narrow shoulder has a larger diameter than the end of the threaded shank to which the shoulder is joined. The teeth can be formed by cold-flow of the material of the shoulder so that the teeth axially extend from the outer peripheral edge of the shoulder in order to bite into the thin sheet metal proximate the annular periphery of the aperture in which the threaded shank is engaged. Preferably, the teeth axially overlap the threading of the shank which extends entirely to its junction with the shoulder, and the teeth are fabricated after the shank thread in order to enable such overlap by the teeth.