Abstract: A cam actuated ejector is provided with a shell press having a crankshaft for reciprocating a slide to which die tooling is mounted and having a forming station in which the die tooling forms a part to be ejected. The ejector includes a kicker bar slidably received within a recess in the press and which is in close proximity to and substantially coplanar with a part to be ejected. The kicker bar is positively reciprocated by a cam assembly that is synchronously engaged with the crankshaft, which operates the press slide, such that an end of the kicker bar cyclically moves at a first rate of movement from a first position outside the forming station to an intermediate position wherein the end contacts a part to be ejected.

Abstract: Methods of necking-in and flanging tubular can bodies having body walls of constant thickness. A pilot die initially inserted into the tubular can body reverses its direction during the necking-in operation with respect to the motion of a ring die member that contacts the exterior surface of the tubular can body member. This concurrent reverse movement of the two forming dies eliminates wrinkles in the necked-in region and produces a container body with increased columnar strength. Repetitive use of the method produces containers with two or three necked-in portions. A method is also disclosed for relubricating the necked-in area of the tubular can body between the successive necking stations.

Abstract: An apparatus to manufacture the casings for mufflers, the apparatus includes a central support to receive an end plate and side wall of the casing, and a metal deforming roller brought into contact with the end plate and side wall so as to cause deformation thereof to join the end plate to the side wall, and means to move said roller into contact with the casing so that the roller will follow the general configuration of the muffler being formed.

Abstract: A tube bulger for producing an enlarged ring-like bulge in the material around an end portion of a metal tube includes upper and lower die sections. When the upper and lower die sections are mated together, a cylindrical hole is formed. The end portion of the tube to be bulged extends into the hole. A ring-like, outwardly oriented enlargement of the cylindrical hole in the mated die sections forms a bulge cavity into which the bulge moves as it is being formed. An elongated mandrel extends through the opposite end of the cylindrical hole and into the open end of the tube. First and second sealing rings disposed about the mandrel on opposite sides of the bulge cavity prevent leakage of pressurized oil between the die and the mandrel. An oil conducting channel has an opening between the sealing rings.

Abstract: A rupture disc system comprises a rupture disc including a dome portion and a flange portion interconnected by a transition region and a mounting mechanism for mounting the rupture disc by the flange portion thereof in a pressure relieving vent. The rupture disc includes a thickness reducing groove at least partially circumferentially surrounding the dome portion and located in the transition region thereof. Preferably, the rupture disc is of the reverse buckling type and the groove does not completely surround the dome portion so as to define a tab or hinge within that part of the transition region which is ungrooved or not as deeply grooved as a remainder of the transition region. In addition, the slope or radius of curvature may be increased in the region of the tab. The rupture disc also includes an indentation on the dome portion. The indentation is preferably greatest on the dome portion at a location spaced from the transition region and directly between the tab and a crown of the dome portion.

Abstract: A nesting drum and a method of making the same is provided. The drum comprises a shell which has a necking at the bottom to accommodate a double seam between the shell and the closure. The closure has a raised circular center and a plurality of ribs which re-enforce the shell to resist large loads.

Abstract: An easy open pull-tab container and related method comprises a generally planar end having a line of weakness defining a tear line so that a portion of the end is partially removable, the tear line lying in the plane of the end. A pull-tab is provided for severing the portion along the tear line, with first and second portions of the end wall on opposite sides of, and spaced from the line of weakness, extending underneath the area adjacent the line of weakness and to form blunt, protective shoulders at the line of weakness. The protective shoulders are formed via first and second concentric grooves in the end, the grooves extending below the level of the end to form inner and outer beads, the inner bead extending substantially below the outer bead. A central bead is formed in the end between the first and second concentric grooves, the central head extending above the level of the end.

Abstract: Single and multi-phase, multi-pole arrays of adjacent equivalent current loops are formed in a self-supporting structure as wound. The multi-pole windings are formed by zig-zag winding elements having peaks and troughs. The peaks and troughs of each winding element form alternate halves of adjacent effective or equivalent current loops. When the peaks of one winding element are aligned with the troughs of another, the two elements provide a single phase ring of adjacent coupled current loops equivalent to the conventional separately wound coils. However, the current loops are already in a correctly positioned and oriented array as wound. The filaments of one winding element cross over the filaments of another intermediate the peaks and troughs and current passes in one direction through the first element returning in the opposite direction through the second. Multi-phase windings in a variety of configurations are described.

Abstract: A forming machine (10) is provided for forming a finished part (12) from a flat blank (14). Draw stations (18-24) are provided to initially form the intermediate part. Each draw station includes a punch (44, 62, 66, 70) and a draw die (48, 64, 68, 72). Each punch defines a shoulder along its length to create a step (60) in the side walls (26) of the intermediate part. In the subsequent necking and final form stages (30, 32, 34) the punch employed also has a shoulder to permit variation of the force applied to the intermediate part between the step and bottom portion.

Abstract: Gears are formed from annular blanks in a gear-forming apparatus including a die block formed with an axial bore and teeth radially projecting into the bore, a cylindrical punch sleeve axially movable toward and away from the bore in the die block, a mandrel movable with the punch sleeve into and out of the bore in the die block, and a backup sleeve axially movable into and out of the bore in the die block in opposite directions to the directions of movement of the sleeve punch and mandrel, wherein gears are formed by preliminarily forcing at least one of the blanks into the bore in the die block until the blank is partially deformed by the teeth of the die block; placing another blank on the preceding blank so that the subsequent blank is received on the preceding blank; causing the mandrel to extend through the respective center holes in the preceding and subsequent blanks; pressing the preceding and subsequent blanks between the end faces of the punch and backup sleeve and forcing the two blanks through th

Abstract: In an apparatus for folding paper sacks to Z shape, co-operating scoring wheels are provided on both sides of the conveying plane of an inlet double belt conveyor consisting of individual double conveyor belts disposed at the ends of the articles. The scoring wheels are spaced apart by a distance equal to the desired spacings of the fold-lines of the Z folds and are mounted on pairs of shafts parallel to the roller shafts of the inlet conveyor. One of the individual belts adjoins a double conveyor belt which extends obliquely to the other and which is extended by a straight individual belt which, in relation to the inlet conveyor, is closer to the other individual belt by a distance equal to the shortening of the articles caused by the folding.

Abstract: Tinplate container with externally welded seam is formed of electrolytic unreflowed tinplate with external tin coating of low coating mass (less than 2 g/m.sup.2); the solderability of such tinplate being comparable with conventional reflowed tinplate of much higher coating mass. The unreflowed tinplate of low coating mass may be produced by Halogen electrotinning process in which ratio of fluoride ions to stannous tin ions in the rinsing section is maintained at unprecedented high level (not less than 10:1), the pH of the rinsing agent is maintained at less than 4 and the current density of the electrodeposition current is in the range 600 to 1,600 amperes per square meter of strip steel.

Abstract: Disclosed is a process for preparation of metal vessels, which comprises lap-bonding circumferential open end portions of outer and inner members, each consisting of a formed seamless metal cup, to each other through an adhesive, said process being characterized by fitting both the outer and inner members to each other through an adhesive layer interposed between the open end portions of both the members, heating the fitted portions of both the outer and inner members so as to melt the adhesive layer, and cooling the fitted portions so that the temperatures of the fitted portions of both the outer and inner members are substantially equal to each other just before solidification of the adhesive layer and the adhesive is filled between both the open end portions.

Abstract: In the formation of the components of a jig for profile stitching of garment parts, a profile formed in one component is used to create associated profiles in a second component and subsequently one of the associated profiles of the second component is used to create a related profile in the first component.

Abstract: A sliding plunger with rack-shaped opposite sides controls opposite rotations of a pair of rotating sector gears, with which integrally rotate two arms extending up to the proximity of the conveying units. Connecting rods are finally interposed between said arms and said conveying units to transform the rotary motion of the arms into a corresponding translatory motion of said conveying units in opposite senses along fixed rectilinear guides transversally disposed with respect to the carton support base. The control of the sliding of the rack plunger can be given by a pneumatic cylinder or by a hand-control lever. There can be provided adjustable means for limiting the sliding plunger stroke in the sense corresponding to the mutual removal of the conveying units and elastical thrust means acting on the same plunger in the opposite sense.

Abstract: Apparatus for removing a drawn container from a draw horn which is carried by the inner slide of a double acting press includes a stripper assembly also carried by the inner slide and capable of controlled axial movement relatively of the draw horn. The draw horn and draw riser have coaxial, centrally disposed bores within which is received an elongate shaft of the stripper assembly. The distal end of the shaft carries a stripper pad while the proximal end is adjustably connected to a pivoting linkage mounted on the inner slide and normally pivoted under pressure by a pneumatically actuated piston so as to maintain the stripper assembly in retracted condition, the pad then forming the bottom of the horn.

Abstract: A high pressure hydraulic tool such as a tube swaging apparatus having a lengthwise-flexible, hollow metallic delivery conduit extending from a hydraulic pressure source to an adaptor. The conduit has an outer diameter of less than about one-eighth inch and an inner diameter of from about 0.01 inch to about 0.05 inch, the conduit being fabricated from a metal having a tensile strength sufficiently great that the tube will not fail when pressurized to at least about 30,000 psi. Swivelable connectors join the lengthwise-flexible conduit to the hydraulic pressure source and to the adaptor, so that the hydraulic source may be connected readily to a succession of tubes to be swaged.

Abstract: An apparatus for working both ends of a workpiece at a time. The workpiece, typically in the form of a bar or a tube, is successively shaped by pre-shaping die means, shaping die means and finish-shaping die means, each of which comprises a pair of dies for simultaneously working both ends of the workpiece to a predetermined configuration. The dies in each pair are movable toward and away from the both ends of the workpiece, respectively, in accordance with the operation of a pair of hydraulic devices. A pair of knockout rods respectively slidably received in cylinders of the hydraulic devices cooperate to support the workpiece while the latter is progressively shaped. One of the knockout rods is fixed to one of the dies while the other knockout rod is held afloat relative to the other die by a hydraulic device, so that the workpiece is allowed to stretch to a full available length only at one end thereof on the afloat knockout rod side.

Abstract: A rail is rolled from a hot-rolled bloom having a square or rectangular cross section by a method which is constituted by the steps of breakdown rolling, universal rolling, which is effected by causing the bloom to travel through a plurality of stands making only a single pass on each stand, base-wheel rolling, head-wheel rolling and edging. The bloom is broken down into substantially H-shaped beam blank whose cross section is symmetrical with respect to the center line of its web. In the base-wheel rolling, the flanges of the blank corresponding to the head and base of the rail are respectively rolled widthwise and thicknesswise in three or more passes using a pair of horizontal rolls and a vertical roll, respectively.

Abstract: The rail is rolled by the steps of breakdown rolling, reforming rolling, first and second universal rolling, head-wheel rolling and base-wheel rolling in that order. The reforming rolling is performed using a pair of horizontal rolls provided with a reforming pass and a head-wheel pass and a vertical roll adapted to reduce the base of the rail, with the paired horizontal rolls, together with said vertical roll, shifted and set in such a position where the reforming pass matches the pass line of the first universal rolling pass. The head-wheel rolling is performed using the same paired horizontal rolls and a vertical roll adapted to reduce the head of the rail, with the paired horizontal rolls, together with said vertical roll, shifted and set in such a position where the head-wheel pass matches the pass line of the second universal rolling pass.