Abstract: In order to prevent the build-up of static electricity in laminated cork floor tiles consisting of a layer of granular cork bonded by a binder and a wear surface preferably composed of polyvinyl chloride foil, provided on one side of the granular layer, the electrical conductivity of the laminate is increased by incorporating agents to reduce electrical resistance in the binder included in the cork layer and by incorporating antistatic agents in the wear surface. The tiles may have a moisture barrier provided on the side of the granular cork layer opposite the wear surface, the moisture barrier also incorporating an agent or agents reducing the electrical resistance thereof.

Abstract: A closure head for securing a sealing cap having a disc-like top and a cylindrical skirt to a container comprises a central plunger slidable in a counter-pressure plunger between extended and retracted positions with respect thereto, a spring normally urging said central plunger to the extended position, a closure sleeve composed of a plurality of arms surrounding the counter-pressure plunger, each having at the free end thereof a clamp shoe provided with an inwardly projecting clamp rim and a radially outwardly directed inclined surface, a support sleeve for carrying said counter-pressure plunger and closure sleeve, a casing surrounding the support sleeve and supporting the latter therein, said casing being provided with a wear ring having an inclined surface in sliding contact with the inclined surfaces on the clamp shoes for closing the container upon sliding movement of the inclined surfaces of the clamp shoes along the wear ring, and the inwardly projecting clamp rim at the end of said each arm forming t

Abstract: The invention relates to a screw cap for a container neck, comprising an internally threaded cap portion (1) and a security ring (6) joined by means of inclined bridge portions (7) to the cap portion. The sealing ring (6) is resiliently deformable and is designed to be forced over and past a collar (5) around the neck of the container, when the cap is being screwed on for the first time. Recesses (8, 9) are provided in the lower part of the cap portion and/or the upper part of the sealing ring, in which recesses the bridge portions (7) are secured. The bridge portions are so inclined that the upper edge of the security ring can engage the lower edge of the cap skirt when, during screwing on of the cap for the first time, the security ring (6) engages the collar (5), without undue bending of the bridge portions (7), so that the cap portion can support the security ring (6) while the latter is forced over the collar (5).

Abstract: A method of manufacturing a bottle cap provided with a ring-pull is disclosed, in which a band is cut from a metal strip by shears and is simultaneously curled up, by shear bow, to form a cylindrical band with overlapping ends, while a bottle cap portion with a tab is prepared separately from another metal sheet. Then, the cylindrical band is firmly connected to the tab of the cap by rolling the cylindrical band up from one edge, to form a toroid while rolling the tab up into the band.

Abstract: The invention relates to a screw cap for a container neck, comprising an internally threaded cap portion and a security ring joined by means of inclined bridge portions to the cap portion. The sealing ring is resiliently deformable and is designed to be forced over and past a collar around the neck of the container, when the cap is being screwed on for the first time. Recesses are provided in the lower part of the cap portion and/or the upper part of the sealing ring, in which recesses the bridge portions are secured. The bridge portions are so inclined that the upper edge of the security ring can engage the lower edge of the cap skirt when, during screwing on of the cap for the first time, the security ring engages the collar, without undue bending of the bridge portions, so that the cap portion can support the security ring while the latter is forced over the collar.

Abstract: Cap (1) with tear-off tag having a pulling member in the form of a ring or eye connected to the tear-off tag. The cap is characterized by at least one upset buckling or impression (5, 6) extending over the pulling member (4) and the outer part of the tear-off tag (2) connected to the pulling member.

Abstract: For determining or indicating the oil content of small amounts of oil in water a defined amount of water is removed so that the oil is concentrated in the water, and thereafter the oil content in the concentrated oil-water mixture is measured. So as to concentrate the oil, the oily water can pass a filter material, the color change or dielectric constant of which is measured. As an alternative, the oily water is concentrated in a rotating cyclone or centrifuge so that substantially all oil is accumulated in the center together with a smaller portion of the original water volume. The clarity of the water is then determined and considered as a measure of the oil content.