Abstract: An improved method of severing a strand of shirred casing or the like from the following casing while the casing moves along a mandrel, comprising the steps of gripping the shirred casing at two axially separated points, extending the casing to deshirr a portion thereof, gripping the deshirred portion of the casing, and axially tensioning the deshirred portion to effect a parting therein.A cam-actuated, double clamp mechanism is also provided to practice the method.

Abstract: A composite end panel is adhesively bonded to the sidewall of a can or similar container with the end panel periphery overlying a portion of the sidewall outer surface. A plastic band or hoop is placed on the sidewall, overlapping the edge of the end panel, and shrunk in place through the application of heat. The band seals the cut edge and prevents wicking while insuring that the end panel is retained in position. A fillet of sealant may be applied to the inside of the container at the juncture of the sidewall and the end panel.

Abstract: An improved test fixture for verifying the reliability of leak detectors in a can-making line, comprising a can body having an orifice of a predetermined size formed therein and piece of filter paper of predetermined porosity, attached to the interior of the container by a double-faced tape, overlying the orifice. A fluid, maintained at a predetermined pressure, is introduced into the body to produce a simulated leak having a predetermined flow rate. Identification of the test fixture as a "leaker" proves the reliability of the leak detector.A method is also provided for producing the test fixture.

Abstract: An improved front opening easy-open end closure wherein the opening flap is formed with an auxiliary score line rupturable to form a vent opening, and the pull tab is provided with an auxiliary rupturing member comprising a panelwardly directed protrusion, superposed in relation to the auxiliary score line and arranged such that displacement of the tab to open the flap results in prior rupture of the auxiliary score line and venting of the container.

Abstract: An easy opening end closure is formed with annular, double folded band adjacent the chuck wall. A weakening line defining a removable panel portion is formed in the center segment of the fold so that the folded edges of the single band provide smooth protective surfaces on both the ledge and the removable panel portion.This disclosure also relates to a method for forming the above described easy-opening end closure wherein the weakening line is formed in the end panel prior to complete formation of the folded band.

Abstract: A method for coloring synthetic food casings such as casings manufactured from cellulose and collagen wherein the tubular casing in the gel state is impregnated with a solution containing caramel and thereafter the caramel is cross-linked and insolubilized in the casing to effect permanent coloring of the casing.

Abstract: The adhesion of propylene polymer layers to enamel coated metal surfaces is improved by incorporating an adhesion promoting amount of a carboxyl modified polypropylene resin in the enamel.

Abstract: A barrier bag of suitable plastic material which has a rigid sloping bottom and thin side walls, the shape and strength of the bottom and the top of the bag causing the body of the bag to collapse radially and fold in a desired manner about a dip tube in the bag without paneling such as would prevent evacuation of the product from the bag.

Abstract: An easy opening closure for pressurized fluids and a method of making the same. The container has an end panel with multiple small openings and a tape strip of plastic or plastic coated metal foil is secured to the panel by a heat activated adhesive in a way by which the plastic is extruded into the openings to form hollow bosses each defined by a peripheral annulus or torus formed into the respective opening and at least partially bonded to an uncoated raw edge of the opening, the boss having a disk-like center portion and the surrounding annulus providing a thick cross-section resisting doming of the areas of the tape covering the openings and inhibiting the development of incipient cracks and their propogation resulting in premature peeling of the cohesive bond.

Abstract: A pre-loading and energy absorbing mechanism in a press having a ram and a primary overload release comprising a preloaded spring assembly interposed between connecting rod pin and the ram and the connecting means to the tooling to take up excessive loads which develop due to thermal expansion or improper positioning of the tooling or kiss-block or an article to be formed or because of malfunction in the tooling, and a secondary higher overload release comprising a pre-loaded spring assembly interposed between the ram supporting head or the base of a press and the connecting structure therebetween, the head/base being movable away from and back to a fixed position in a connecting structure.

Abstract: An improved easy-opening end closure of the full panel pull-out type, wherein the pull tab includes an integral tether cooperating with the tab attachment rivet to redistribute the opening stresses impressed on the pull tab during opening, whereby tearing of the pull tab is prevented.

Abstract: A child resistant safety closure for an easy-open can has a tether which restrains movement of the pull tab. The tether is integral with the tab and extends into the interior of the tab ring. The distal end of the tether is removably attached to an auxiliary rivet formed in the end panel. Opening the container requires application of sufficient force to cause disengagement of the tether from the auxiliary rivet. This is beyond the experience or physical capabilities of small children.

Abstract: An improved easy-opening end closure wherein the end panel is formed with a number of intersecting, straight score lines which define a number of interconnected non-detachable openable segments adapted to be pushed inwardly to open the closure. An opening member is provided, adapted to effect opening of the closure pursuant to a panelwardly directed application of digital pressure on the nose portion thereof, and having a number of camming surfaces for fracturing the score lines and for urging the segments inwardly.

Abstract: A tray having at least two compartments is erected from a blank and comprises a bottom wall, a pair of opposed side walls, a pair of opposed end walls and an improved divider separating adjacent compartments. The divider comprises a center panel disposed above the bottom wall and bridging the side walls, a pair of lateral panels extending downwardly to the bottom wall from opposite sides of the central panel, a base provided by a pair of flaps each extending from one of the lateral panels, and a pair of locating tabs each projecting from one of the lateral panels and received in a respective one of a pair of locating slots formed in the bottom wall. The base provided by the flaps is located between the lateral panels. A blank for forming the tray is also disclosed.

Abstract: A method and apparatus for positioning an article to a predetermined position. The article is provided with a temporary orientation tab struck from the article; the tab eventually being cut off in further manufacture of the article. A reciprocating conveyor deposits the article onto a rotating slip-clutch driven mandrel to which the article is pressed by an overhead spring-biased holder. The mandrel rotates with the article until the tab on the article engages a stop on the apparatus whereupon the clutch slips and means on the conveyor clamp the article in oriented position, the conveyor lifting the article off the mandrel and advancing it to the next manufacturing station.

Abstract: Propylene polymers are heat sealed to enamel coated metal surfaces, the enamel having incorporated therein an adhesion promoting carboxyl modified polypropylene resin. The bond strength of the heat seal is improved by incorporating the carboxyl modified polypropylene resin in the enamel coating formulation dissolved in a hot (heated above 100.degree. C) organic solvent solution selected from aliphatic acids, alcohols and hydrocarbons having at least 10 carbon atoms.

Abstract: An improved method of providing a sealant layer in the double seam joining a can end panel and body. A dual band of molten resinous thermoplastic hot melt material is applied to the end unit and reflowed to obtain preferred placement. After double seaming, the material may be reflowed again to improve sealant continuity and to provide an improved sealing fillet between the end panel and body.

Abstract: The filterability of aluminum salts precipitated from an aqueous solution containing dissolved aluminum ion is improved by adjusting the pH of the solution to between about 4 and 6, adding less than a stoichiometric amount of a 1, 3-dicarbonyl compound such as acetylacetone to the solution to precipitate the aluminum dicarbonyl and then adding a sufficient amount of an alkaline hydroxide to precipitate the remaining dissolved aluminum ion in the form of aluminum hydroxide to obtain a mixed precipitate which can be readily filtered.

Abstract: An improved easy-open end closure pull tab comprising a double folded rivet panel having a lower portion which is carried beyond the outer periphery of the tab ring to form a nose. The panel fold functions as a spring to bias the tab away from the end panel of an end closure after assembly and raises the tab above the end panel so that the tab is springy which increases its abuse resistance. The double folded rivet panel construction allows machining the tab from thin sheet stock.

Abstract: A method for high speed sinter molding having endless chains mounted side by side. Mold halves are attached at spaced intervals down the chains. The paired mold halves come next to each other to form a female mold into which is deposited a polymeric material. A treating core extends inside the mold and as the mold traverses its path, it surrounds the core and the core deposits polymeric powder, heats the polymeric powder, and then cools it. At the end of the mold path, the finished article is ejected and is ready for the next operation.Another embodiment of the same essential process is to place the paired mold halves in juxtaposition as they moved down over the core. This will result in the fabrication of a continuous conduit. A container may be fabricated by using hollow mold halves with heating and deposition accomplished before the hollow mold halves are pressed together to form a hollow container.