Abstract: The linear conveying route of a first folding material conveying device (1), oriented toward the roll nip (6) of a pair of folding rolls (7, 8), and the conveying route of a second folding material conveying device (11), the conveying direction (16, 17) of which is reversible, converge in an acute angle toward the folding roll nip (6). A deflection guide means guides, in its operative position (20), the portion (43) of the folding material (43, 44) leading in the conveying direction (9) of the first conveying device (1) from the conveying route end of this conveying device (1) to the conveying route of the second conveying device (11), whereupon both conveying devices (1 and 11) each continue transporting a portion of the folding material (43, 44) until the location (A) to be folded reaches a certain position at the deflection guide means (20).

Abstract: Envelope blanks are scored and folded by pressing the flat blanks through a series of scoring and folding rolls. The rolls include vacuum rolls which invert the envelope blanks during the scoring operation. The blanks are scored laterally and as they pass over the outer surface of one of the vacuum rolls they are scored longitudinally. During the longitudinal scoring operation, the envelopes are curvilinear due to their being drawn down onto one of the vacuum rolls. After the longitudinal scoring operation, the blanks are inverted by being folded along the transverse score. The inverted, folded blanks are then moved along by a pair of cooperating vacuum rolls to a gumming station. After being gummed, the blanks are folded along their longitudinal scores with the folded flaps being secured in place by the gum.

Abstract: An apparatus for drawing and ironing a cup with a peripheral flange from relatively thin material into an elongated container also having a flange by moving a die and punch relative to one another and draw clamping and centering sleeve coaxial therewith and thereafter applying a bottom forming member axially relative to the die against the punch to profile shape said container bottom without the benefit of coolant flooding of said material during drawing and ironing, the improvement comprising; a die of a predetermined shape and size carried in the apparatus, a punch of a predetermined shape and size for cooperating with said die and each having surfaces which define a clearance therebetween during forming of said material; separate passages through said die means and said punch means to permit flow of coolant; valving in line with die and punch passages for independent control of the coolant flow from a supply means to said die and punch to permit regulation of the operating temperature of said die means wit

Abstract: A method of removing a formed part from a die, said part produced by clamping a preform between first and second dies, bringing said preform to within an elevated temperature range suitable for superplastic forming of said preform, and applying pressure to said preform to superplastically form at least a portion of said preform into a cavity of said first die, comprising the steps of:drawing a vacuum between at least a portion of said part and said second die such that said part is secured to said second die; andseparating said second die from said first die while said part is within said temperature range and secured to said second die, such that said part is withdrawn from said cavity of said first die.

Abstract: A swaging apparatus includes a mandrel to be inserted in a tubular structure that is to be expanded radially. A pair of seals define the axial boundaries of an annular pressure zone between the mandrel and the tubular structure. One or both of the seals includes a support formed by a plurality of arcuate segments elastically held together and presenting a cam surface. A cam member interacts with the cam surface to expand the support radially in response to swaging pressure, thereby preventing inelastic deformation of an elastic member on the high pressure side of the support.

Abstract: In a drawing device for presses with a mechanically driven drawing ram (24) and with a sheet metal holder (5) exerting its holding force, acting on the metal sheet (27) and counteracting the drawing direction, by way of a pressure plate (7) by means of a die cushion piston (10), supporting the pressure plate and being under the effect of a pressure medium, in a fixed die cushion cylinder (12), the objective consists in avoiding, or at least reducing, the noise-generating impact shock upon impingement of the drawing ram (24) on the sheet metal holder (5) with the metal sheet (27) lying thereon.

Abstract: An elliptical chain link having a "D" shaped cross sectional configuration along the longitudinal sides of the ellipse is shown and described. In addition there is a unique relationship between the cross sectional areas and configurations of the ends and sides of the link shown and described.

Abstract: An apparatus is provided for performing multiple operations on a conventional open-die forge press, and includes a rotatable top punch assembly and stationary bottom die assembly. The top punch assembly includes a mounting fixture secured to the press crosshead, a holder plate rotatably mounted on the fixture, a plurality of punches extending downwardly from the holder plate, and motor means for indexing the punches sequentially into forging position over the bottom die assembly. A method is also provided for making valve pots, including upsetting a heated metal block in a split die and punching a hole through the block, the improvement in which during the upsetting step a vertically reciprocable member is extended so as to close a bottom opening in the split die, in order that the split die will function as a closed die, and during the punching step the reciprocable member is retracted so as to allow a punch-core to fall through said opening.

Abstract: A folding blade cylinder for use in a rotary printing machine is disclosed. The periphery of the cylinder is provided with a plurality of spaced circumferential slots. Arched carrying bows are positioned within the slots and elements which are capable of expanding under the influence of a pressurized fluid are placed in the slots underneath the carrying bows. Application of the pressurized fluid to the expandable elements forces the carrying bows radially outwardly to increase the peripheral size of the folding blade cylinder.

Abstract: A plastics member (16) is sealingly secured to a sheet metal member (10) by creating in the sheet metal member (10) an opening which is defined by a free edge (14) of the sheet metal, forming-up a marginal region (12) of the sheet metal member (10) around the location of the opening, receiving the plastics member (16) in the opening, and re-forming the marginal region (12) so as to close the opening onto the plastics member (16) and cause the free edge (14) to bite into and seal around the plastics member (16).

Abstract: Apparatus for expanding a tube into a bore formed in tube sheet in which a primary explosive containing a relatively high number of grains of explosive per unit length extends within the tube coextensive with that portion of the tube to be expanded. An energy transfer cord extends between a detonator and the primary explosive and includes a relatively low number of grains of explosive per unit length which are insufficient to detonate the primary explosive but which be covered by a sheath to contain the debris and gases associated with the explosion of the latter explosive. A booster extends between the energy transfer cord and the primary explosive and contains an explosive which is detonatable by the energy transfer cord and, upon exploding, detonates the primary explosive.

Abstract: A strong, seamless one-piece metal bottle of substantially uniform wall thickness for containing and dispensing gas under pressure is produced from a flat metal piece by a series of deep-drawing operations to provide an elongated cylindrical shell having an open end mouth and a slight flange thereabout. A dimple is formed in its bottom end wall. The flange and an adjacent cylindrical open end mouth portion of the shell is then severed from the main body, and the wall thickness of the new open end mouth portion is tapered from the cylindrical side wall of the shell towards its mouth edge. Thereafter, the tapered open mouth end portion is turned or swaged inwardly into a somewhat blunt, rounded-in nose portion of a substantially uniform thickness that substantially corresponds in the thickness to the side and bottom walls of the formed metal bottle and that has an open end of reduced size suitable for mounting a nipple, ferrule or valve fitting therein.

Abstract: Improved apparatus for producing continuous form stationery by creasing a strip of paper along lines of weakening formed therein. The apparatus includes a frame, a distributing mechanism mounted on the frame for alternately distributing successive lines of weakening in the paper in substantially opposite directions, dispensing rollers mounted on the frame for drawing the paper from a supply thereof and dispensing the paper into the distributing mechanism, mechanisms carried by the frame for urging the distributed paper into a creased condition, and a conveyor for receiving and transporting the creased paper. The improvement consists of a system for removably securing the paper supply in position to dispense paper during the operation of the paper processing apparatus. The improved paper securing system includes a carriage movably carried by the frame and moved between two operative positions by a linkage assembly.

Abstract: A method and an apparatus for the explosive shaping of metal tubing are provided. A die including a pair of die halves are opened and closed by means of a clamping assembly attached thereto. The die halves include a plurality of die segments which are coupled in series. A breech is secured to one end of the die. A shotgun shell may be loaded into the breech and fired by means of a detonator. The necessary force for deforming the tubing is accordingly provided. A water retaining block is secured to the end of the die opposite the breech so that water can be held in the tubing prior to detonation of the shell.

Abstract: An improved apparatus for manufacturing a rupture disk containing one or more scores or perforations from a sheet metal section comprising the steps of cutting the sheet metal section into a disk, forming a concave-convex dome in the disk by applying pressurized fluid to one side thereof, and then forming one or more scores or perforations in the concave-convex dome of the disk while continuing to apply pressurized fluid thereto.

Abstract: In a mold for the superplastic forming of a piece from a blank, the distortion of the blank is measured by a hollow tube located within the mold and having one end positioned in contact with the blank. The hollow tube extends through a sleeve fixed to the mold and includes an axial array of holes. A bore in the sleeve is connected to a source of low pressure gas via a delivery tube so that the low pressure gas can selectively communicate with the interior of the hollow tube as the movement of the tube causes the selective registry of the holes therein with the delivery tube. Such selective registry causes a pressure drop in the delivery tube which is measured by a pressure drop detector and accompanying recorder. Electrical leads are provided on the inner surface of the mold for evaluating when the distortion of the blank causes the face of the blank to reach selected portions of the mold inner surface.

Abstract: A pipe and sleeve telescoped joint with the pipe and sleeve in sealing engagement and keys embedded in both pipe and sleeve at their interface. The size and number of the keys are calculated from the size and strength of the pipe. The sleeve is sized and its strength selected from the strength of the pipe, and the sleeve ends are shaped to hold the joint circular when it is made. The apparatus includes means for holding the midportion of the sleeve circular when creating the joint, and for cooperating with the sleeve ends to keep them circular. The sealing engagement is created by firing a propellant into a substantially incompressible medium, like water, held by the apparatus in a cavity about the sleeve, and a piston separates the explosive propellant from the pressure medium.

Abstract: A double-blow header particularly suited for producing semitubular rivets is disclosed. The header is provided with three separate adjustments for controlling the position and operation of the extrusion pin, all of which can be adjusted while the machine is operating. A first adjustment determines the rearwardmost position of the extrusion pin and, in turn, adjustably determines the mass of material contained within the shank of the workpiece. A first powered drive adjustably determines the stroke of the extrusion pin during a piercing operation without altering the rearwardmost position thereof. A second powered drive adjustably determines the kickout stroke without altering the final position of kickout. The kickout drive adjustment and the first adjustment are interconnected so that both of them are adjusted in a related manner.

Abstract: An easy-open structure for containers and a method of forming the same are disclosed. The easy-open structure comprises a sheet material container wall panel having a scoreline formed therein outlining a movable wall portion to be moved out of conforming contour with the remainder of the sheet material wall panel, and an elongated tab opener for moving the movable wall portion out of conforming contour with the remainder of the wall panel. The tab opener is welded to the movable wall portion with a high energy density welding process wherein the energy density is at least on the order of 10.sup.6 watts/inch.sup.2. Preferably the welding is accomplished by laser welding.

Abstract: This disclosure relates to a product, the process for making same from precoated metal and the tool used for making the product. The product is a concurrently drawn and ironed sanitary food can wherein the side wall thickness of the container is relatively uniform and approximately 0.001" thinner than the thickness of the starting material. The process is a concurrent multiple drawing and ironing operation wherein the diameter and the wall thickness are reduced in each of a plurality of operations. Finally, the tools used for each drawing and ironing operation have particular configurations designed to permit this concurrent forming of both the diameter and the side wall thickness.