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.

The invention relates to a method of producing scaffolds, especially ladders. In order to provide a construction solely made of an insulant material, the rails (5) and the rungs (1) of a ladder according to the invention are wholly made of reinforced plastic and are joined to each other by means of a polymeric cold junction method. Thereby a hole (18) is provided on the side of the rail (5) and a suitable amount of a mineral or fiber reinforced monomer mixture (2) is added therein, whereafter the rung (1) is positioned thereto and the resultant whole Is turned upside down, the monomer mixture being polymerized by means of heat, a catalyst and/or an accelerator. So the monomer mixture flows around the junction of the rung (1) and the rail (5), polymerizing therein and forming a tight joint between the rung and the rail.

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.

A method for making a plate-like fiber-reinforced product to be used as building or packing material, the method comprising: placing fibers on a lower laminate; applying a binding agent on the fibers so that the fibers are surrounded by the binding agent; transferring the fibers with binding agent between the lower laminate and an upper laminate between lower and upper rotating pressing plates; allowing the binding agent to foam up, expand and harden between the upper and lower pressing plates. A manufacturing apparatus and a plate-like product are also indicated.

A frame structure consisting of two compound units provided with mutually facing grooves undercut on either side, in which the first compound unit can be attached in a desired position to the second compound unit via a detachable coupling which comprises a turning part which can be turned from the outside manually via a handle about its longitudinal axis by about 90 DEG into its coupling or decoupling position, and which in its coupling position positively engages by means of a T-head at its one end in one of the two grooves and by means of anchoring means at its other end in the other of the two grooves and can be locked in this coupling position by means of an anti-rotation device. To connect the two compound units to each other without special tools, but above all to be able also to detach them from each other again, it is proposed according to the invention that the anchoring means comprise a punched part which is arranged longitudinally displaceably in the one groove and bears the turning part which is freely rotatable relative to it and that the handle comprise a resilient element connected securely against rotation to the turning part, which element in decoupling position extends in relieved state or under only slight stress between the two compound units and in coupling position engages under bending stress behind a holder.

The invention relates to a method for coating a substrate with a layer of a material, such as a metal, in which a quantity of electrically conductive material is vaporized in a space with a low background pressure and energy is supplied to the material which is to be vaporized in order to vaporize this material. According to the invention, the material which is to be vaporized, while it is being vaporized, is kept floating, without support, in the space and is enclosed in an alternating electromagnetic field, the alternating electromagnetic field being generated with the aid of a high-frequency alternating current. The invention also relates to a device for coating a substrate and to a substrate.

A method of forming a polymer device including the steps (i) of depositing on a substrate a solution containing a polymer or oligomer and a crosslinking moiety, to form a layer, and, (ii) curing the layer formed in step (i) under conditions to form an insoluble crosslinked polymer, wherein the crosslinking moiety is present in step (i) in an amount in the range of from 0.05 mol % to 5 mol % based on the total number of moles or repeat units of the polymer or oligomer and the crosslinking moiety in the solution.

A method of manufacturing a composite, prestressed wooden beam (1, 10, 35, 67, 90) comprising the steps of: positioning a plurality of beam parts (2, 16, 68, 69) in contact with one another at least in one direction transverse of the direction of length, bending the beam parts (2, 16, 68, 69) into the desired shape and interconnecting the beam parts (2, 26, 68, 69). The number of beam parts (2, 16, 68, 69) positioned in mutual contact is bent integrally into the desired shape and retained. Subsequently the connection is performed by passing a great number of smooth, substantially cylindrical pins (6, 21, 61, 70, 72) through the beam parts (2, 16, 68, 69) in a direction transverse of the direction of length and subsequently the resultant composite beam (1, 35, 67, 90) is disengaged. Furthermore the invention relates to a device for manufacturing said composite, prestressed wooden beam (1, 10, 35, 67, 90) comprising a stationary, elongate gauge (11, 31). This device comprises a displaceable drilling device (17, 37) comprising a drill holder (26, 51) having a rotary shaft to be positioned transversely of the direction of length of the gauge (11, 31), a displaceable pressing device (22, 40) having a pressing stroke transverse of the direction of length of the gauge (11, 31) and supporting means (12, 24, 32, 91) for supporting the pressing device (22, 40) with respect to the gauge (11, 31).

1. A process for producing surfacing material for road surfaces and the like, comprising the following features : granular mineral (20) of selected grain sizes is heated ; the heated granular mineral (20) is mixed with an encasing material (21) ; bitumen (22) is added as a binding agent to the granular mineral (20) ; the mineral (20) and the bitumen (22) are mixed in a mixer (9) ; characterized by the following features : the encasing material (21) which is semi-hard to soft at ambient temperature and which already has a tendency to stick at elevated temperature comprises amorphous polyolefins which as copolymers of alpha-olefins with selected monomers have the following parameters : melt viscosity about 8000 mPa s (measured with a rotary viscosimeter at about 190 degrees C), softening point about 105 degrees C (measured with ring and ball in accordance with DIN 52011), penetration 20 (according to DIN 52010), breaking point -30 degrees C (measured in accordance with Fraass, DIN 52012) ; the added amount of the encasing material (21) is about 7% of the total binding agent content of the surfacing material (23).

This invention relates to a module for the wall-mounting of a terminal (13) of an air conditioning system which has the characteristic of comprising a structure (4, 25) which can be embedded into a wall (1) forming a space (2). The structure (4, 25) removably houses the terminal (13) in such a way as to form the said space (2) in accordance with good practice and such as to ensure a correct surface finish in the vicinity of the perimetral edge (2A) of the said space (2).