Abstract: An inverted conversion press for producing easy-open metal container ends is provided, which combines the functions of end and tab presses. The press includes a tab forming station and an end forming station, disposed one beneath the other and rendered alternately operative by a vertically-reciprocable slide assembly. A method for producing an article, comprised of assembled workpieces, is also provided.

Abstract: Work pieces, particularly thin-walled shells of can dimension, are transferred from a magazine at a supply station to another station by a reciprocal shuttle having a pocket for receiving the shells in ready position at the supply station; at the other station, a reciprocal loader transfers the shell laterally from the shuttle to a work station where the work product is produced. The shuttle incorporates a second pocket to receive the work product and includes a surface for gating the supply magazine as an incident to shuttle travel. By locating the path of the shuttle above the path of the loader, it is possible to coordinate shuttle and loader movement for maximum utilization of time. Shells fed to the magazine are constantly aligned inside the magazine to assure effective bottom feed from the magazine to the shuttle.

Abstract: A plastic closure adapted for frictional mounting upon the rim of a cup or the like has an upstanding brim extending about a central panel, which brim has a downwardly opening channel therein for seating the cup rim. A series of discrete compound protuberances project into the channel from the outside wall of the brim, and provide a discontinuous bead which engages the rim of the cup. The protuberances are configured to afford facile mounting on the cup and secure retention thereon while, at the same time, ensuring ready stripping from the male forming member on which the closure is molded. The inside wall of the closure is configured to ensure close fitting sealing engagement with the inner surface of the cup, and is dimensioned to do so without causing buckling, such as would, in turn, tend to produce leakage from the closed container. In general, the configuration of the closure adapts it for use with containers having a variety of rim configurations and a range of dimensions.

Abstract: This invention relates to an inexpensive, printed paper sheet material which has an appearance closely simulating that of foamed polypropylene. The product is prepared by coating a paper sheet with an overall coating of a pearlescent ink and then overprinting the pearlescent coating with a dilute black ink in a fine mottled pattern.

Abstract: A method of making a normally closed, tamper-resistant container having a body, a nozzle insert extending outwardly from an opening of the body, and an integrally-formed closure member molded upon the insert and covering substantially the entire exterior surface and the outer end of the outlet passage thereof. The closure member includes a manually-rupturable connecting section extending thereabout and dividing it into a removable cap portion and a fixed breast portion, which joins the insert to the body. A method for fabricating the container is provided.

Abstract: An ink composition suitable for ink jet printing on metal surfaces, the ink incorporating, in solution, a colorant, a resin component, an alcohol-water solvent and optionally an electrolyte, proportioned to give the ink properties of low surface tension, low viscosity and a low resistivity, all these properties, together with the pH of the composition, being controlled to give excellent workability and stability of the ink in jet printing operations.

Abstract: A feed mechanism for can ends having curled, peripheral edge portions includes means for disposing a multiplicity of can ends in a stack, and gate means for providing underlying support for the ends disposed in said stacking means and for individually releasing ends therefrom. The gate means employs a pair of blades to successively separate the lowermost end from the stack, each of which blades is configured and adapted to provide smooth separation of the ends, and avoid damage thereto. The mechanism is particularly suited for high-speed operation.

Abstract: An end cover or closure for an accurate pour style container that is particularly well suited for use with non-viscous liquids has included thereon a displaceable portion proximate the periphery which prescribes an opening in the cover that is size-limited by means of a short score in the panel having reversely-curled ends, there being a non-detachable pull tab attached to said displaceable portion with a pull ring for the tab disposed radially inwardly from the point of tab attachment; the tab and the displaceable portion of the cover when opened being adapted to pivot through about 90.degree. with the tab then assuming a thus stopped position generally perpendicular to the container end panel adjacently neighboring the side wall of the enclosed container so that the extended open tab can thereupon function as a very effective and efficient pour guide for effluent during container discharge.

Abstract: A solid fabric conditioner composition comprising a mixture of a conditioning agent and diatomaceous earth in compressed form is employed to condition fabrics in an automatic clothes dryer. Methods for utilizing such products wherein the rate of release of conditioner to fabrics being treated is predetermined and controlled are also provided.

Abstract: Photopolymerizable compositions and processes for photopolymerizing such compositions are provided, said process comprising admixing with said epoxides, photosensitive organohalogen compounds in combination with an organometallic compound and thereafter applying energy to the resulting mixture. The organohalogens decompose to liberate an active catalyst which then serves to initiate polymerization of the epoxide material. The organometallic compound functions synergistically with the organohalogen to enhance the film forming properties of the resulting polymer and or sensitivity of the polymerizable system.

Abstract: Stable diazonium catalyst solutions are provided in which the catalyst is dissolved in an organic sulfone. The catalyst solutions have greatly extended shelf-life while at the same time retain the ability to rapidly cure epoxy resins upon exposure to an energy source.Polymerizable compositions of the two-package type, comprising polymerizable epoxy materials and such catalyst solutions are also provided.

Abstract: Solid gas-permeable synthetic polymeric articles are chemically filled with a filler compound formed in situ. These deposits are produced by diffusing one or more diffusion compounds into a solid gas-permeable polymer and reacting or decomposing the diffusion compound(s) to form deposits throughout the article. The compounds may be preferentally deposited in a planar zone of sheet material in an amount sufficient to cause the sheet to split.

Abstract: An open-ended cylindrical container body whose body wall marginal open end portion includes an annular body curl, and comprises metal less than about 0.0057 inch thick for a drawn and ironed container body, and less than about 0.002 inch for the metal foil liner of a composite container body, a method of securing a metal end closure to the curled container bodies by mechanical engagement and compression of end portion of the end closure cover hook substantially axially against the body curl, and the hermetic pressure-resistant containers formed therby.

Abstract: Polymerization of epoxides and mixtures of epoxides with lactones and vinyl compounds, polymerizable through the action of cationic catalysts, is controlled by providing, in association with a radiation-sensitive catalyst precursor, a gelation inhibitor in the form of a cyclic amide in which the amide nitrogen atom contains unsubstituted hydrogen.

Abstract: A composite frame-like holder for a plurality of articles such as containers, a blank for the composite holder, and a method of forming the holder from the blank. The composite holder is an aggregate of singly or multiply severable holder units which can be severed from the composite in a manner that maintains the integrity of the severed unit and of the remaining composite. Each unit has a sloping leg panel with an aperture for receiving an article, a vertical side panel and a top panel foldable over the article and having means adjacent its edge for securing it to the holder unit. The method includes folding the blank along its center line to place its sections in superimposed, substantially mirror-image juxtaposition, securing one section to the other along their center strips, severing the center line, depositing containers in leg panel apertures and securing the containers to the thereby formed holders.

Abstract: A thermoplastic bottle having a unique combination of properties. The bottle is characterized by a very high level of molecular orientation, and possesses the properties of high impact strength, low gas permeability and excellent resistance to creep strain under tensile load. A blowing process for fabricating the bottle is also taught which features a means for substantially improving the resistance to creep strain.

Abstract: Photopolymerizable compositions comprising a polymerizable epoxide, vinyl ether, or other acid-catalyzed monomer and a phototropic, alkyl substituted-orthonitrobenzene containing compound are provided, which, when exposed to actinic radiation, are polymerized by the radiation produced acidic initiator.

Abstract: A method of extruding bark and of forming a solid article, solid synthetic fuel or fireplace log comprising from about 60 to 95 percent by weight bark, which comprises physically blending pieces of combustible thermoplastic of an extrudable size with pieces of bark also of an extrudable size and having less than 7 percent preferably less than 2 percent moisture, to form a bark thermoplastic mixture of from about 60 to 95 percent by weight bark and about 2.

Abstract: A blend of epoxide materials is provided which, although essentially free of volatile solvents, is liquid and tractable for coating and related applications at or near room temperature. The epoxide materials include an epoxy prepolymer of the type of glycidyl-bisphenol A resins, epoxidized novolaks, polyglycidyl ethers, and alicyclic diepoxides, blended with a bis(epoxycycloalkyl) ester and in many cases also with a low viscosity monoepoxide in limited proportions. The compositions preferably include additionally a cationic polymerization initiator, preferably a radiation-sensitive catalyst precursor, and epoxide polymers are produced by coating such compositions on a substrate, followed by application of energy, through heating or preferably through irradiation, to effect substantial polymerization of the epoxidic materials of the coating.

Abstract: A two-piece paperboard carton for retaining and dispensing cigarettes and the like, comprising a shell and a slide receptacle inserted into the shell. A simple motion of pulling down on the shell is sufficient to open the slide receptacle while an opposite action is effective to close the receptacle.