Abstract: An insulating strip for a heat-insulated composite section with two metal rail sections and at least one insulating strip positioned between them and intended for windows, doors, or facades. The insulating strip has a rectangular basic cross-section with anchoring webs along the edge that are accommodated on at least one side in recesses in the metal rail sections. The anchoring webs at at least one end of the insulating strip end at a distance from the face that corresponds to the rectangular basic cross-section.

Abstract: A device for fastening together the parts of a heat-insulated composite section consisting of two metal sections and of at least one insulating rod has knurling rollers that shape exterior groove webs, forces them against the insulating rod, provides them with a knurled strip. The knurling roller has conical, toothed, circumferential surfaces. The bottom land between each pair of teeth parallels the conical circumferential surface. The knurling rollers are mounted in a tensioning mechanism that consists of two annular disks in such a way that it can be displaced along its axis. It can be displaced 0.5 to 1 mm to each side out of an intermediate position. The axial flotation make it possible to compensate for errors in alignment between the knurling roller and the composite section that occur while the groove webs are being shaped as a result of undesirable superimposition of the tolerances of the separate parts. The knurling rollers are mounted in such a way that they cannot rotate on powered shafts.

Abstract: A composite section that the frames of a window or a door are made out of or that are used to construct a facade consist of a plastic rail section and of a metal rail section. The metal rail sections face inward when the composite section is employed to construct a window or a door frame, whereas the plastic rail sections constitute the outer shell. The plastic rail section has anchoring webs with free edges that engage recesses in the metal rail sections. The anchoring webs are secured in the recesses because the outer recess webs and/or inner recess webs conform to the shape of the anchoring webs. The plastic rail sections are angular in cross-section and have outer flanks that in the case of a window or door constitute motion-limiting webs or glass-securing strips. The fittings that connect the casement to the window frame and the fittings that anchor the window frame are attached only to the metal rail sections.

Abstract: Two elongated metallic profiles each formed with two pairs of flanges each of which forms a longitudinally extending groove are positioned with the two grooves of each profile parallel and opening toward the two grooves of another such profile. An elongated bar of insulating material having a pair of longitudinally extending sides is fitted between each groove of each profile and the corresponding groove of the other profile. This forms a longitudinally extending passage defined on two opposite sides by the two insulating bars and on the other two sides by the two profiles. A tool is displaced through this passage so as plastically and permanently to deform the inner flanges outwardly and into intimate tight contact with the bars.

Abstract: Two elongated metallic profiles each formed with two pairs of flanges each of which forms a longitudinally extending groove are positioned with the two grooves of each profile parallel and opening toward the two grooves of another such profile. An elongated bar of insulating material having a pair of longitudinally extending sides is fitted between each groove of each profile and the corresponding groove of the other profile. This forms a longitudinally extending passage defined on two opposite sides by the two insulating bars and on the other two sides by the two profiles. A tool is displaced through this passage so as plastically and permanently to deform the inner flanges outwardly and into intimate tight contact with the bars.

Abstract: Two elongated metallic profiles each formed with two pairs of flanges each of which forms a longitudinally extending groove are positioned with the two grooves of each profile parallel and opening toward the two grooves of another such profile. An elongated bar of insulating material having a pair of longitudinally extending sides is fitted between each groove of each profile and the corresponding groove of the other profile. This forms a longitudinally extending passage defined on two opposite sides by the two insulating bars and on the other two sides by the two profiles. A tool is disposed through this passage so as plastically and permanently to deform the inner flanges outwardly and into intimate tight contact with the bars.