Abstract: A press, especially a multilevel press, has a press stand of one or more press frames whose head and foot pieces are of cast iron and whose vertical uprights or tension shanks are of steel plate construction and formed with T or hammerheads bearing on the head piece or foot piece.

Abstract: A single-level or multilevel or continuous board press is composed of a succession of press frames which are subdivided horizontally at their vertical limbs for transport and when then welded together at the erection site. Leveling strips are provided along mounted surfaces of the frame to support the plates, piston-and-cylinder units and the like serving to press the mats of wood material.

Abstract: The roller bar chains of a continuous press for producing pressed board provided sufficient play for the roller bars relative to the link chains by having the journaling pins for the link chains extending through bushings which articulate the overlapping link plates together, so that the outer diameters of the pins within these bushings are less than the inner diameters of the bushings. The result is that the roller bar chain has only a single guide plane in the press region between the two press plates.

Abstract: A panel press has horizontally spaced and vertically oriented window-type tension frames each in turn having an upper beam having opposite ends each formed with an upwardly directed seat, a lower beam beneath the upper beam and having opposite ends each formed with a downwardly directed seat, and respective vertical side elements extending between the ends of the upper and lower beams and each unitarily formed with a laterally projecting upper end having a downwardly directed surface bearing downward on the respective upper-beam seat and with a laterally projecting lower end having an upwardly directed surface bearing upward on the respective lower-beam seat. Vertical bolts secure the laterally projecting ends to the respective beam ends.

Abstract: An injection-molding machine is disclosed. The machine has an injection unit and nozzle and the injection unit includes a tubular cylinder and a screw that is capable of back and forth movements along the tubular cylinder. Means are provided to stop the movement of the screw at its end/stop position at a distance from the nozzle so as to form a gap between the screw head and nozzle. The gap has a volume of more than π 4 · D 3 and up to the volume of a shot wherein D is the dimension of a single screw stroke. The use of the machine yields molded articles that are virtually streak free.

Abstract: A continuous belt press has upper and lower platens defining a horizontal gap. Upper and lower upstream drums and downstream are rotatable on the frame about respective horizontal drum axes at the upstream and downstream ends of the gap. Upper and lower endless steel belts spanned over the respective upper and lower drums each have a working stretch supported by respective upper and lower sets of rollers on the respective platens. Each belt has a pair of edges projecting transversely past the respective rollers and at least one of the drums of each of the belts has a substantially cylindrical central region of a predetermined central diameter bearing through the respective rollers on the working stretch of the respective belt and a pair of edge formations of smaller diameter than the central-region diameter lying outside the central region and in engagement with the edges of the respective belt.

Abstract: A process of molding a decorated article by injection is disclosed. The process entails the placing against an internal wall of a mold cavity that includes one or more inlet orifices, a decorated film and providing one or more protective elements each element positioned on the film opposite an inlet orifice, and introducing into the mold through the one or more orifices a thermoplastic polymeric molding composition by injection.

Abstract: A press for pressing a mat into a thin panel has a press frame, upper and lower press plates on the frame, and upper and lower press belts having confronting lower and upper stretches defining a press gap extending in a horizontal and longitudinal transport direction and respectively running below and above the upper and lower press plates. Upper and lower flexible intake plates are juxtaposed respectively above and below upstream ends of the lower and upper stretches of the belts and define therewith a downstream portion of an intake mouth flaring upstream. Upper and lower rollers are respectively braced against the upper and lower stretches of the belts at an upstream portion of the intake mouth immediately upstream of the downstream portion of the intake mouth. Further actuators connected to the rollers set a shape of the upstream portion of the intake mouth.

Abstract: A single-level or multilevel or continuous board press is composed of a succession of press frames which are subdivided horizontally at their vertical limbs for transport and when then welded together at the erection site. Leveling strips are provided along mounted surfaces of the frame to support the plates, piston-and-cylinder units and the like serving to press the mats of wood material.

Abstract: A panel press has horizontally spaced and vertically oriented window-type tension frames each in turn having an upper beam having opposite ends each formed with an upwardly directed seat, a lower beam beneath the upper beam and having opposite ends each formed with a downwardly directed seat, and respective vertical side elements extending between the ends of the upper and lower beams and each unitarily formed with a laterally projecting upper end having a downwardly directed surface bearing downward on the respective upper-beam seat and with a laterally projecting lower end having an upwardly directed surface bearing upward on the respective lower-beam seat. Vertical bolts secure the laterally projecting ends to the respective beam ends.

Abstract: A continuous belt press has upper and lower platens defining a horizontal gap. Upper and lower upstream drums and downstream are rotatable on the frame about respective horizontal drum axes at the upstream and downstream ends of the gap. Upper and lower endless steel belts spanned over the respective upper and lower drums each have a working stretch supported by respective upper and lower sets of rollers on the respective platens. Each belt has a pair of edges projecting transversely past the respective rollers and at least one of the drums of each of the belts has a substantially cylindrical central region of a predetermined central diameter bearing through the respective rollers on the working stretch of the respective belt and a pair of edge formations of smaller diameter than the central-region diameter lying outside the central region and in engagement with the edges of the respective belt.

Abstract: An injection-molding machine is disclosed. The machine has an injection unit and nozzle and the injection unit includes a tubular cylinder and a screw that is capable of back and forth movements along the tubular cylinder. Means are provided to stop the movement of the screw at its end/stop position at a distance from the nozzle so as to form a gap between the screw head and nozzle. The gap has a volume of more than &pgr;/4 ·D3 and up to the volume of a shot wherein D is the dimension of a single screw stroke. The use of the machine yields molded articles that are virtually streak free.

Abstract: A method for producing pressed board deforms the mat with compression and decompression between heated plates upstream of the platens.

Abstract: A press for pressing a mat into a thin panel has a press frame, upper and lower press plates on the frame, upper and lower press belts having confronting lower and upper stretches defining a press gap extending in a horizontal and longitudinal transport direction and respectively running below and above the upper and lower press plates, respective arrays of rollers between each press plate and the respective stretch, and upper and lower flexible intake plates juxtaposed respectively above and below upstream ends of the lower and upper stretches of the belts and defining therewith an intake mouth flaring upstream. An array of spaced differential hydraulic actuators is braced between at least one of the intake plates and the frame and is operable to deform the one intake plate and thereby change the spacings of the belts at the mouth. A controller connected to the actuators can therefore steplessly change the shape and position of the belts at the mouth.

Abstract: A continuous press for pressing a thick mat into a thin panel has a press frame, upper and lower press belts having confronting lower and upper stretches defining a press gap extending in a horizontal transport direction, upper and lower flexible intake plates juxtaposed respectively above and below upstream ends of the lower and upper stretches of the belts and defining therewith an intake mouth flaring upstream, and a plurality of hydraulic actuators braced between at least one of the intake plates and the frame and operable to deform the one intake plate and thereby change the spacing of the belts at the mouth. A desired shape of the one intake plate at the mouth is established in accordance with the thickness of the mat, the density of the mat, and the thickness of the panel.

Abstract: A press for pressing a mat into a thin panel has a press frame, upper and lower press plates on the frame, upper and lower press belts having confronting lower and upper stretches defining a press gap extending in a horizontal and longitudinal transport direction and respectively running below and above the upper and lower press plates, and upper and lower flexible intake plates juxtaposed respectively above and below upstream ends of the lower and upper stretches of the belts and defining therewith an intake mouth flaring upstream. An array of spaced fluid-powered actuators carried on the frame each have outer ends juxtaposed with one of the intake plates. Thermal insulation is provided between the actuator outer ends and the one intake plate to protect the actuators from the heat of the intake plates. Swivel joints, normally ball joints, are provided between the actuator outer ends and the one intake plate.

Abstract: An apparatus for continuously produced pressed board has a structuring belt in the form of a metal wire screen which is fed with a respectively endless steel belt and the wood-based mat passing through a continuous press whose heated upper and lower press platens have the belts guided therealong via rollers displaceable along closed paths. The wire mesh configuration of the structuring belt is continuously impressed into the pressed board strand which is produced.