Abstract: A thickness gauge is shown for measurement with each stroke of a metal blanking and cupping press. The gauge is adapted to be carried with the press ram adjacent to the blanking die. The gauge includes a thickness feeler plunger and reference support for carrying contact pins. The feeler and the support for the pins are mounted for relative motion with respect to the moving part of the press and for limited relative motion with respect to each other whereby the gauge can accommodate press overstroke and varying thicknesses of stock.

Abstract: A web severing device which includes a web transport means and a web lifting means so that a transported web is lifted away from the surface of the transport means for severing by a cutting means, thus, preventing damage which would occur on contact between the transport means and the cutting means.

Abstract: An improvement in distributors for air-laid fibers wherein one or more impellers within a distributor housing receive fibers from a hammer mill or other source, and impel fibers smaller than a certain size through a first screen extending over the outlet opening of the distributor housing onto a moving forming wire. A partial vacuum is formed beneath the forming wire to hold the fibers thereon and to form a continuous web of fibrous material. The impellers are blades which rotate about a vertical shaft immediately above the first screen. The invention is directed to improvements in the first screen, wherein it is endless and is mounted for movement across the outlet opening of the distributor housing, in the same direction and at the same speed as the forming wire.

Abstract: An inclined conveyor for lowering uniformly spaced, cylindrical articles comprises a pair of inclined rails, paired pivotal rockers and fingers disposed along the inclined rails, and a pair of drawbars for sequentially pivoting the inclined pairs of rockers and fingers. The paired pivotal rockers and fingers are so cooperably disposed as to define a series of article receiving pockets accommodating controlled gravitational movement of the articles along the rails, as the rockers and fingers are sequentially pivoted by the drawbars.

Abstract: A non-detachable fracture resistant lever tab for easy open containers. The tab is provided with a tongue with a high degree of bendability, the tip of which is staked to the central panel wall by means of a rivet. Bendability of the tongue is enhanced through the use of cooperative transitional planes of graduated coining which urge the bend line to form in an area of maximum coining. A method for manufacture of the tab is disclosed.

Abstract: A blister package of the push-through type comprises a thermoformed blister portion made of a laminate sealed to a foil sheet. One of the laminae, prior to thermoforming, has been fluid compression rolled from a sheet to about one third of its original thickness affording a degree of orientation enhancing its moisture barrier properties, clarity, and strength in the thermoformed state.

Abstract: A reclosable hinged blister card package wherein peripheral flanges on the clear plastic blister are adhered to a paperboard card which in one embodiment is suitably cut-scored along the adhered areas to allow defined ply separation of the card for opening the blister. A hinge line is formed in the card above the bottom flange to allow hinged opening of the blister. An opening tab formed on the blister overlays an opening in the card. Locking ears on the opening tab are adapted to be pushed through the cut-out opening to lock the blister in reclosed position. Another version of the package provides reclosure and locking with pressure sensitive adhesive on the side peripheral flanges of the blister which adheres to adhesive on the underlying portions of the card.

Abstract: A non-detachable lever tab for easy open container ends with a tongue, the tip of which is staked to the central panel wall by means of an integral rivet. The lancing which forms the tongue terminates in a pair of nail piercings, which afford a high resistance to tear through. The tongue of the lever tab is coined to substantially increase its resistance to fracture under repeated bending.

Abstract: A refrigerated food is packaged in a paperboard tray covered by a plastic film bonded to upper edges of the tray sidewalls in provision of a barrier against contamination of the food. The film and the tray are transparent to microwave energy for heating the food, and automatic venting of the covered tray, while heating, is afforded by a relatively small strip of electrically conductive material on the film and absorptive of microwave energy in an amount sufficient to heat the same and melt a vent opening in the film.

Abstract: Copolymers of glycidyl methacrylate and allyl glycidyl ether having pendant epoxy groups, having an inherent viscosity of at least about 0.25, preferably within the range of about 0.25 to about 0.38, and an epoxy equivalent of at least about 0.65 epoxide equivalent per 100 g. of polymer are provided which upon admixture with a radiation-sensitive aryldiazonium salt provide compositions which exhibit improved sensitivity, curing rates and other properties. Articles for recording and storing information from a laser source and other articles such as microfilm are derived from such compositions by subjecting a coated substrate to an energy source of sufficient intensity to decompose the radiation-sensitive catalyst and thus effect polymerization via the epoxy groups of the copolymer.

Abstract: Ink compositions are provided which are suitable for use in ink jet printing on coated or uncoated substrates to form images which are highly resistant to abrasion and highly penetrant by virtue of the penetrating characteristics of a select solvent system. The ink compositions have improved handling safety and performance characteristics, and contain, in a preferred embodiment a penetrating solvent blend comprised of from about 50 to 90% n-propyl acetate as a major solvent, methyl cellosolve as a high boiling secondary solvent, and, as an auxiliary solvent a lower aliphatic alcohol; from about 3 to 25% by weight of a low molecular weight B or C-stage, modified phenol polymers; a colorant; an electrolyte; and optionally, a surfactant.

Abstract: A carton blank may be folded by folder blades supported on an adjustable plate positioned on one side of a chain which carries a clamp by which the carton blank is pulled through the machine. After folding, the blank is glued to complete a flat shell and the shell is then inverted; the clamp is articulated so the shell may be turned in a horizontal plane to align a datum line on the shell to a datum line on a cartoner machine.

Abstract: A laminate of non-ferrous metal foil and heat softenable material is folded to tubular form to juxtapose the margins and the margins are heat sealed by passing the tube through an inductance coil; the inductance field may be intensified by a ferrite bar located in a mandrel over which the tube is fed.

Abstract: A process for modifying or removing the prior powder particle boundaries and surface films from ferrous particulate metals and alloys, such as iron, low carbon steel and low alloy steel, for burnishing the clean, freshly revealed metal surfaces of the particles, and for inducing and storing energy of deformation into the surface layers of said particles. The sintering characteristics of metal powders are improved, and the most rapid sintering characteristics are produced.For example, in as-water-atomized ferrous metal particles, the surface film or skin is mostly oxides of iron and mixed oxides of the constituents of iron alloys. The skin is removed in a high velocity, turbulent whirling gas stream, which impacts the particles into each other, and the resulting burnished iron and steel cores are collected, together with the finely shattered oxide skins.

Abstract: A method is provided for fractionation of oil obtained by pyrolysis of lignocellulosic materials to obtain useful chemical fractions, including a phenolic fraction which is suitable as a total or partial replacement for phenol in making phenol-formaldehyde resins. The method comprises mixing the oil with a strong base such as sodium hydroxide to a pH level at which the neutral fraction of the oil is selectively soluble in a solvent such as methylene chloride or ether, and the mixture is extracted with the solvent to obtain a first extract containing the solvent and the neutral fraction, and a first raffinate containing the remaining fractions of the oil, i.e., the phenolic fraction, the organic acids fraction and an amorphous residue. The neutral fraction is recovered by distillation and the first raffinate is mixed with sulfuric acid to lower its pH to a level at which the phenolic fraction is selectively soluble in the solvent.

Abstract: A process for conditioning ferruous particles with heat and a reducing atmosphere to reduce the oxygen content of the particles in a non-agglomerative manner and to make the conditioned particles readily pourable and free-flowing, and to process the particles into steel strip.

Abstract: An improved apparatus for evaluating the continuity of the enamel lining of metallic containers. The apparatus has been developed for quality control inspection of containers and is designed to ensure that the entire interior surface of the container is evaluated by the test. The apparatus utilizes cooperating carbon electrodes of opposite polarity, an electrolyte solution, a grounded container, an enabling circuit and a meter to measure current flow through defects or discontinuities in the enamel lining. The carbon electrodes include a primary or measuring electrode, and a short secondary or liquid sensing electrode.Electrolyte solution is added until contact is established between the primary and the sensing electrodes thereby activating an enabling circuit which is used to control the meter display.

Abstract: A pair of spinning nozzles for applying plastics sealant to a pair of openings in a can end such as a carbonated beverage or beer can end. The spinning nozzle has an annular opening, a circle of round openings, or a circle of small surgical steel pipes sized to be on the order of a hypodermic needle for delivering the adhesive in an upward direction against the bottom of an overlying can end. A shroud is provided to confine excessive adhesive, and a screen or field of vacuum-applying holes are positioned within the shroud and around the nozzles to suck excess adhesive back into a reservoir. A heater is used to keep the plastics soft and flowing.

Abstract: A cyclically operable machine having a work station where a blank is deformed into a work product and in which the work product is ejected on to a conveyor oscillated between that station and another conveyor to which the work product is delivered synchronously.

Abstract: An end construction for a sealed carton comprises a first weakness line disposed between the closure panel end flap and an extension thereof. The first weakness line is severable by a wire over which the panel and its extension are sealed to a carton end, by gluing, in a form, fill, and seal apparatus. Severance of the first weakness line by the wire is effected as the sealed carton is moved through the apparatus. A second weakness line is provided in the closure end flap and extends with angularity to the first weakness line to intersect same. A resulting triangular section of the closure end flap is glued, as is the severed flap extension to the end of the carton, and retains the closure in closed position until such time the second weakness line is torn upon moving the closure to open position. The severed flap extension remains glued to the end of the carton to reinforce same and maintain its assembly.