Abstract: An apparatus for pre-processing a stainless steel to be cold-rolled comprising: annealing and pickling means having a mechanical descaling device and a pickling device; rolling means consisting of rolls arranged to be two or more stages; and means capable of applying liquid lubricant at a thin thickness to a work roll of the rolling means.

Abstract: Vibrations that arise during the winding of a coil of wire onto a rotating mandrel are damped by surrounding the coil with a tube such that the tube is spaced from the coil and by supplying fluid to the tube. The tube extends in the axial direction of the coil along at least a part of its length and, due to the spacing between the tube and the coil, conducts fluid such as water in a confined manner towards at least one end of the tube and releases the fluid from the end of the tube, for example in a region of the coil adjacent to and/or remote from the winding of the coil.

Abstract: In a hydraulic method and installation for shaping can bodies the can body is filled with a liquid and placed in a die and pressure is applied to the interior of said can body until it assumes the shape of said die.

Abstract: The shut height of a crimping die set (9) for crimping an electrical terminal (T) on an anvil (22) to a lead (L) is adjustable stepwise by means of a disc (60) which can be driven by a servo motor (M1) to a plurality of angular positions each setting a theoretical ideal shut height for a particular combination of lead and terminal sizes. Since anvil wear, in particular, and/or minor variations in lead and terminal dimensions can falsify the ideal crimp height set, the actual crimp height achieved, is measured electronically or mechanically, and the height of the anvil (22) is automatically adjusted in accordance with such measurement, by means of a further servo motor (M2) to adjust the shut height of the die set (9) and anvil (22), so that the ideal shut height is achieved.

Abstract: A bend correction apparatus for bending a workpiece subject to springback, the apparatus having a pressure die for holding a workpiece, a radius die for providing a radius form about which the workpiece is bent, and a clamping die for engaging and bending the workpiece relative to the pressure die and about a portion of the radius die. A microprocessor moves the clamping die between a bend angle position in which the workpiece is bent about the radius die to a predetermined angle relative to the clamping die and a relieved position in which the clamping die is not bending the workpiece. A sensor, movable conjointly with the radius die, engages the workpiece in a springback position upon rotation of the radius die toward the workpiece and sends a signal to the microprocessor upon contact with the workpiece.

Abstract: In a circular dummy block for use in an extrusion press for extruding through a die, extrudable metal, a bayonet type coupler for connecting the dummy block to a stem of the extrusion press.

Abstract: An apparatus and method for conditioning the leads of a semiconductor device having parallel leads projecting in a predetermined configuration. The apparatus includes a device for engaging and massaging the leads to reintroduce a predetermined spacing between the leads, bringing the leads into parallelism. The apparatus further includes a device for forming the leads to at least partially remove any bends in the leads, and a device for reforming the leads to a predetermined configuration. The lead conditioning method includes the steps of bringing the leads into parallelism, forming the leads to a partially unbent condition, and shaping the leads in a desired lead configuration.

Abstract: The quality of a crimped connection produced by the application of a crimping force (F) to a crimping barrel (WB) of an electrical terminal (T) with a wire (W) therein, is carried out by measuring the peak value (PV) of the crimping force (F) and comparing it with a reference value. The incremental values (IV) of the crimping force are measured during its application and are stored in the form of an actual crimping force value envelope (EA). The incremental values of an ideal crimping force are measured during its application and are stored in the form of an ideal crimping force value envelope (EI). The envelopes (EA and EI) are then compared to determine the quality of the crimped connection.

Abstract: An apparatus for use with a press which corrects the spacing between an upper die and a lower die when the press is at bottom dead center. The apparatus includes a detector which is operative during each cycle of reciprocal movement of the press slide to detect the spacing between the upper and lower dies, a comparator which compares the detected spacing during each cycle with a prior spacing, an axially expansible/contractible piezoelectric actuator mounted on the press so that its axial length affects the spacing between the upper and lower dies when the press is at bottom dead center, and a drive circuit which is responsive to a deviation signal from the comparator to drive the actuator with a high voltage so as to expand or contract its axial length according to the difference between the detected and prior spacing of the dies.

Abstract: For swingably mounting a door on a jamb, a dual action self closing hinge has a stationary component which seals, shields, and carries a stationary cam and a rotatable cam follower. The cam elements cooperate with one another to displace the cam follower and attached door panel upwardly during an opening movement and permit the automatic downward movement of the cam follower and door panel upon release of the door panel from an open position. Simultaneous with the cam action, an offset hinge mechanism elevates the center of gravity of the door panel during opening, and likewise provides for the automatic return of the door panel to the closed position to improve the self-closing action of the door. In addition, a cam angular position lock enables the closed position of the door relative to the jamb to be easily adjusted.

Abstract: A hinge structure couples a cover swingably and separably relative to a body of an image scanner. The hinge structure has a pair of hinge units by which the cover is separably joined to the body. Each of the hinge units comprises a rod mounted on the body and at least one hook mounted on the cover and removably engaging the rod. When the cover is in a closed position, lying over the copy support plate of the body, the hook is prevented from being disengaged from the rod by a stop member. When the cover is in an erected open position, the hook can be moved along the rod into a position where the hook can be disengaged from the rod, thereby separating the cover from the body.

Abstract: Fatigue lifetime enhancement of the holes formed in structural members occurs by introducing a cold working tool or interference fit fasteners fabricated from shape memory alloy materials. The tool may be employed to expand the wall of a hole while the tool material is raised above the critical transitional temperature. Then, upon lowering the tool material below the critical transitional material, it contracts permitting it to be withdrawn. Bushings and interference fit fasteners may be installed in holes formed in structural members when a shape alloy material bushing or fastener is heated above the critical transitional temperature so that an interference fit results and the hole is cold worked. If the alloy material is not cooled below the critical transitional temperature, the interference fit may be permanently maintained, thereby further enhancing the fatigue life of the members.

Abstract: A multi-function pipe bending machine (1) comprising a base structure (2), a first slide (8) slidably engaged to the base structure (2) along a first traverse direction, a second slide (11) slidably engaged to the first slide (8) along a second traverse direction perpendicular to the first direction, a first and a second bending die (14a, 14b), at least one unit (15a, 15b) for positioning and locking a pipe (6) to be bent, and a bending arm (18) active on the pipe (6) against the action of the bending dies (14a, 14b).

Abstract: The present invention relates to a process for extruding molybdenum-rhenium alloys into tubes or pipes. The invention is capable of high temperature extrusion of MoRe alloys, which comprise about 10 to 50 wt. % rhenium, into a seamless piper or tube. The steps of the process generally comprise fabricating a MoRe billet or blank which includes a pilot hole that extends along the longitudinal axis of the billet, heating the billet to a temperature of at least about 1300.degree. C., and extruding the heated billet by operation of an extrusion press.

Abstract: A two-piece, mechanically connected mandrel assembly in which a locking wedge assembly serves to secure a tapered socket connection. The wedge assembly includes two long wedge segments, two short wedge segments, a bolt connecting the short wedge segments and a locking device to fix the bolt after proper torquing to secure the assembly. The two-piece, mechanically connected mandrel assembly is useful in the rolling or drawing of steel tubing or other metal constructs, and the four-piece locking wedge assembly both provides a secure connection and permits ready replacement of a worn work bar with a new work bar.

Abstract: A method and apparatus are described for forming a plurality of axially extending externally concave complete flutes defining a fluted profile in a cylindrical can body 1. The apparatus comprises a correspondingly profiled mandrel 11 of maximum diameter less than the minimum diameter of the cylindrical can body and comprising a whole number of complete flutes which is less than the number of flutes on the finished can body, an elongate rail 14, means 12 for locating a cylindrical can body over the mandrel, and means 10 for rolling the mandrel relative to the rail to deform a portion of the cylindrical can body between the mandrel and the rail into the fluted profile.

Abstract: A method and apparatus for cutting corrugated webs having louvers from a strip which is continuously formed to define undulating fins or corrugations extending transversely of the strip. The method and apparatus comprises periodically interrupting the movement of the corrugated strip, locating the strip, and severing the corrugation along an apex by moving a shearing cutting blade such that the blade is moved to engage and cut beginning at one longitudinal edge and progressively across the apex of the corrugation to the other edge of the corrugation. The apparatus functions to lift the knife blade initially to separate the corrugation thereby moving louvers out of contact with one another such that the louvers would not be severed by the movement of the knife blade.

Abstract: A chuck and arbor apparatus for a spring coiling machine implements an accurate alignment of the block wire guide with the feed line guides from the wire supply rolls. The chuck is modified to provide for discrete, axial clamping positions which correspond to selected wire alignment positions. The arbor is preferably D-shaped to establish a repeatable angular orientation in the chuck, and avoid the need to clamp the arbor while clamping the chuck.

Abstract: A spring manufacturing apparatus has a first mode in which a spring pitch is formed by inserting a wedge tool between coils of a wire material forcibly bent by a point tool, and a second mode in which the spring pitch is formed by pushing the bent wire material in a lateral direction. The first and second modes share the same driving source. The direction in which the wedge tool moves in the first mode and that in which the wire material is pushed in the second mode are substantially at right angles to each other, and therefore driving force in the first mode can be used also in the second mode by mounting on the apparatus a member that converts the direction of motion.

Abstract: A method of manufacturing a washer includes the steps of: (a) feeding a metal wire into a die having a bearing face and a through hole which opens to the bearing face so as to permit the metal wire in the through hole to protrude out of the bearing face at a predetermined length; (b) punching the protruded metal wire against the bearing face to form a disc with a punching head which includes a core and a shell; (c) punching the disc to form a central hole on the disc by forcing the core out of said shell and into the through hole; and (d) retracting the punching head to allow the disc to separate from the metal wire.