A method of making a ceramic ornament having short undercuts on a surface. A primary clay body, is molded into a primary resin body by a silicone mold assembly. The primary resin body is then used to make upper and lower silicone mold assemblies. After slip is poured into the silicone mold assemblies, the plaster molding members will absorb moisture in the slip. Two clay body portions having a predetermined thickness are formed into shape. After removing the molding members, and coating the connection line of the clay body portions with slip, the two silicone mold assemblies are combined. The two silicone mold assemblies will be formed into a complete figurative body upon the slip being dried. The figurative body is then fired at a high temperature so as to obtain a ceramic ornament having short undercuts and decorative threads on a surface.

The invention relates to superficial molding on glass sheets, by injection molding of plastic material. According to the invention, a glass sheet 1 is inserted in a mold comprised of two plates and which define a generally planar junction surface wherewith one part of the mold, which part is delimited by a hermetic seal, is evacuated, which enables the central part of the glass sheet to be held in place, and according to a feature of the invention, the superficial molding is delimited by a molding seal which is capable of accommodating variations in the shape of the glass sheet and which can withstand the pressure associated with the injection molding of the plastic material.

A device for preparing and ejecting polymeric cement made from at least two pre-packaged components comprises a tubular vessel including a first axial end wall having a closed outlet, and a second axial end wall having an aperture. A first starting component of the polymeric cement is present inside said tubular vessel near the first axial end wall. A hollow shaft extends through said aperture of the second axial end wall. A piston element comprises a closed container filled with a second starting component of the polymeric cement. The piston element is selectively lockable to the shaft. The container has a bore and is slidingly engaged upon said shaft. An agitator element is secured to one end of the shaft. Furthermore opening means for providing an opening in the closed container are provided. The hollow shaft is provided with a gas permeable filter means.

An injection molding tool (10) for producing disc shaped moldings comprises primary and secondary plates (11,12) arranged opposite each other, which can move relative to each other to open and close the mould, and a mould ring (20). The latter surrounds the primary plate concentrically, closes off the injection mould (25) at the outer edge, and can move relative to the primary plate. An injection molding tool (10) for producing disc shaped moldings, especially in the form of information carriers such as CD's and/or DVD's, comprises primary and secondary plates (11,12) arranged opposite each other, which can move relative to each other to open and close the mould, and a mould ring (20). The latter surrounds the primary plate concentrically, closes off the injection mould (25) at the outer edge, and can move relative to the primary plate. A tempering arrangement (26) for the mould ring is located in the ring, and tempering can be carried out electrically or by use of a tempering medium. The tempering arrangement is in the form of a channel, and a tempering medium can be supplied to it via a connection. A second arrangement (28) is used to blow the finished molding over its peripheral region after the mould has been opened.

Device for the piece-wise or batch-wise refining of pieces of a substrate, in particular a textile substrate, under high pressure with a treatment medium, comprising: a substantially cylindrical pressure vessel ( 1 ), which is provided with a closable feed aperture ( 4 ) for placing the pieces of substrate in the pressure vessel ( 1 ); a pipe system ( 7 ) for feeding a treatment medium to and discharging it from the pressure vessel ( 1 ) under high pressure during treatment. The cylindrical pressure vessel is provided on at least one of the two end faces with an aperture that is closable by a lid ( 2, 3 ), which aperture forms the feed aperture ( 4 ). The device comprises retaining means for keeping the lid ( 2, 3 ) in place in a sealing manner during treatment, and the retaining means comprise a bounding frame ( 10 ) that is circumferentially closed, with two interconnected end pieces ( 11, 12 ) situated at a distance from each other, which end pieces in a closed position can be slid over the pressure vessel ( 1 ) and thereby retain the end faces of the pressure vessel ( 1 ) in the axial direction.

The present invention has as an object an adjustable mold for the manufacture of concrete elements such as staircases of the type having a straight line extent, of which the treads are perpendicular or not perpendicular to the risers. The adjustable mold according to the invention comprises a frame (1) on which is mounted a base (2), a front lateral wall, a back lateral wall (4) and two longitudinal walls (5), the said base being constituted by juxtaposed molding elements (6) each provided in a dihedral angle which dihedral angle is constituted by a wall intended to form the tread and by a wall intended to form the riser and is characterized in that each molding element (6) is supported by carriages mounted movably on horizontal guide rails (10) longitudinally to the mold, mounted on the frame (1) and in that a flexible strip (11) sealed to the concrete is stretched by stretchers (12) mounted at each extremity of the mold and is forced to cover and conform to the shape of the base (2) of the mold by winding on rollers (13), mounted beneath the base (2) each between two elements (6), and by gripping between the molding elements when these latter are maintained pressed the ones against the others by jacks.

1. Process for assembling, by jointing, two surfaces A and B, these surfaces being made of various materials such als glass, plastics, metal etc., characterized in that it consists in : a) applying to the surface A a seal in the shape of a strip of a thermoplastic material, based on a polymer chosen from the group comprising thermoplastic polyurethanes, polyetheramides or mixtures of both these thermoplastic polymers, b) placing the surface A so as to face the surface B, via its seal, and c) producing the assembly by melting the surface layer of the seal which is facing the surfaces B, placing in contact and cooling under a slight pressure.

1. Process for assembling, by jointing, two surfaces A and B, these surfaces being made of various materials such als glass, plastics, metal etc., characterized in that it consists in : a) applying to the surface A a seal in the shape of a strip of a thermoplastic material, based on a polymer chosen from the group comprising thermoplastic polyurethanes, polyetheramides or mixtures of both these thermoplastic polymers, b) placing the surface A so as to face the surface B, via its seal, and c) producing the assembly by melting the surface layer of the seal which is facing the surfaces B, placing in contact and cooling under a slight pressure.

The invention relates to a composite material (1), for closure elements, mad from a support material (2) and a thermoplastically moulded layer (3) with projecting and recessed sections (4,5). According to the invention, the thermoplastically moulded layer (3) is thinner in the region of the recessed sections (4) than in the region of the projecting sections (5). Said surface structure may for example be produced by embossing by means of ribbed rollers or embossing plates. The composite material (1) is suitable for the production of sealing elements, such as for example, cup tops, usually stored in stacks. The cup elements stacked thus can easily be unstacked after stacking, precisely by means of said recessed or projecting sections(4, 5). On the side of the composite material facing the consumer a decorative and/or informative impression (6) can further be provided.

The method for consolidating plate-like, slice-like or modularelement-like ornamental stones comprises: the impregnation by means of the pressure created in the treatment environment with a water glass solution wherein the material being treated is plunged for enough time for the full penetration in fissures and microporosities of the surface thereof; characterised in that it has the following steps:-A pre-treatment of the material by exhausting;-A permanence of the pre-treatment step for enough time to extract gases, steams and powders existing in said fissures and microporosities;-An injection of the impregnating solution with a water glass solution and keeping the treatment chamber under vacuum during the injection and in the following impregnation step. The absolute pre-treatment pressure is preferably of 0.2-0.3 mbar; for the injection it is preferably between 10 and 100 mbar, while for the impregnation it is preferably kept at a pressure close to the steam pressure of the water glass solution being used. The implant being used and the device for the stowage and handling of the materials to be treated are also described.