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: Apparatus for unit cavity and multi-cavity, multi-layer injection molding and injection blow molding machines are provided, which, in preferred embodiments, include:Coinjection nozzle means, each for plural polymers, valve means for each nozzle, the valve means being adapted to move through a nozzle central channel to clear the nozzle channel of melt, a feed-block for each nozzle, polymer melt splitters, drive means for each valve means, a free floating runner system and a force compensation system to provide an effective pressure seal between the nozzles and the cavity block.

Abstract: A method is provided wherein an aqueous titanate chelate is applied "in-line" to non-lubricated or lubricated tinplate surfaces during metal forming operations. The method provides economical benefits in using a non-combustible solvent system and in requiring minimal energy output for application or activation of the chelate. Inks or coatings that are subsequently applied to the chelate treated surfaces show improved adhesion.

Abstract: In the production of metal cans, a sheet metal body plate (blank) is scored with aligned upper and lower score lines and then formed into a cylindrical single can body. Preferably the scoring is in steps; first, scoring the upper score line using a scoring roller and an anvil wheel; and, secondly, scoring the lower score line using a second scoring roller and a second anvil wheel. Then the single can bodies are conveyed by a conveyor belt and rolled over the knife edge (parting edge) of an elongated parting rail, with the parting edge aligned with the score line and with the conveyor applying pressure on each can body to part each one on the parting edge, thereby forming two can bodies from the single can body.

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.

Abstract: In a marking system for stamping materials such as aluminum strip, a pulse of determined energy is supplied to a solenoid, to impart a determined kinetic energy to a die. The die is guided to dissipate substantially all of this kinetic energy in the deformation of the material being stamped. The pulse of energy applied to the solenoid may be controlled by a programmable computer, programmed to control the duration of time that a current is applied to the solenoid. The computer may control a plurality of such solenoids, controlling the times and relative numbers of operation of each of the solenoids.

Abstract: A drive system for a machine including a transmission for converting rotary motion into linear reciprocating motion for driving a rack and a pinion is disclosed for use in connection with moving the pinion in oscillating rotary fashion to be the input for a differential. The differential is selectably controlled to either rotate or remain fixed and permit at least one of its outputs to rotate. The result of the drive system is to either swing a member connected to the differential output which member holds a stack of disc-like objects from vertical to horizontal or alternatively to hold a plurality of such stakes in vertical position and rotate them.

Abstract: The disclosure describes a new type of pressure cylinder to provide clamping force while fabricating deep drawn metal parts. The piston is a hollow cylinder connected to the clamping pad. The drawing tools are connected to the draw ram by a rod passing through the hollow piston. This arrangement provides a smaller overall press height and an axisymmetric clamping force. In addition, the symmetry of the parts described means that the wear parts can be reversed to double their useful lives.

Abstract: A closure for sanitary or food cans made from high temper plate to withstand the high pressure developed during processing without permanent distortion or buckling. An upwardly directed reinforcing annular bead is introduced concentric with a countersink groove which is disposed between the end flange and said annular bead. The ends are further contoured with a series of transitional steps or panels inward of said annular bead. These features enhance the strength of the closure without inducing substantial warpage.

Abstract: In a multi-layer polymeric structure having an interior oxygen barrier layer of a moisture sensitive polymeric material such as ethylene-vinyl alcohol, drying agents are incorporated in the structure, particularly in a layer or layers proximate to the barrier layer, to limit the moisture content of the barrier layer to maintain barrier properties.

Abstract: A signal emitted from a transducer responsive to the relative power applied during a welding process is enhanced electronically and mathematically to be of use in controlling welder operating parameters and/or in rejecting defective welds. Electronically the signal refined to minimize unnecessary noise in the signal and mathematically the signal is modified and analyzed against a standard. In a high speed welding operation automatic means are necessary to assure weld quality and control welder operation since the rapidity with which the welding takes place is too fast for manual readjustment.

Abstract: Disclosed is a tool for use in a high speed progressive die which includes a spring loaded retaining member and cooperating recess surface to first position and hold the progression carried partially formed piece part prior to a forming operation which severely works the metal tending to warp, distort and lock same within the tool.

Abstract: In a multi-layer polymeric structure having an interior oxygen barrier layer of a moisture sensitive polymeric material such as ethylene-vinyl alcohol, drying agents are incorporated in the structure, particularly in a layer or layers proximate to the barrier layer, to limit the moisture content of the barrier layer to maintain barrier properties.

Abstract: Shown is an easy open closure for a container wherein there is a ring-pull tab held by an integral rivet to the central circular recessed panel of the closure. The tab however, rests on a raised portion of that panel which portion includes various areas of weakening and strengthening and a displaceable panel therein defined by a score line. The raised portion positions the tab to protect it against abuse loadings due to handling and shipping full containers having the closure. About the periphery of the central circular panel is a stepped wall portion except near the area of the score line for the displaceable panel where the wall is unstepped.

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.

Abstract: In a multi-layer polymeric structure having an interior oxygen barrier layer of a moisture sensitive polymeric material such as ethylene-vinyl alcohol, drying agents are incorporated in the structure, particularly in a layer or layers proximate to the barrier layer, to limit the moisture content of the barrier layer to maintain barrier properties.

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.

Abstract: An inverted press for producing multiple drawn metal containers combines in one press the functions of cupping and drawing presses. The press includes a blanking and cupping station and several drawing and redrawing stations, disposed one adjacent the other and rendered serially operative by a vertically reciprocable slide assembly. At each stage of operation the material, semifinished article or finished article is under complete control. A method for producing a drawn container by multiple forming and reforming of a drawn article, is also provided.

Abstract: An apparatus for the automatic bagging of can ends which utilizes a common cam shaft to synchronize the operation of a series of cooperating features. A vacuum table with inclinable leaves, which is designed for vertical reciprocation, strips a bag from a magazine of randomly disposed bags, positions and opens the bag. A bag pick up and a bag horn assist in holding the mouth of the bag open for receipt of a stack of ends. The filled bag is automatically closed and discharged to a storage bin.

Abstract: A plastic body is provided for use in a container which is adapted to hold product under vacuum, without undesirable deformation of the container. The body has a curvilinear bulge at the base of its cylindrical sidewall, and the bulge is dimensioned and configured to permit its slight deflection under vacuum which, in turn, facilitates upward movement of the bottom wall of the body. These changes effect a reduction of volume within the body, thereby reducing the level of vacuum which forms therewithin. The characteristics of the body render it particularly well-suited for production in relatively small sizes, utilizing relatively rigid synthetic resinous materials. It is also especially adapted for use in connection with a metal end closure, which may be hermetically sealed thereonto.