Abstract: Method for the continuous production of mesh mats made of steel wire having a plurality of parallel longitudinal wires that are welded to transverse wires extending in a manner spaced apart from one another, wherein hot- or cold-rolled wire material is used as the longitudinal and transverse wires, wherein the longitudinal wires are stretched in a stretching apparatus while being fed to the welding operation, wherein the longitudinal wires are drawn through the stretching apparatus by means of a capstan drum, and wherein the transverse wire material is also stretched in a separate stretching apparatus while being fed to the welding operation, and an installation for carrying out the method.

Abstract: A process for the preparation of a fiber reinforced composite article that facilitates manufacturing of composite articles with reduced cycle times, said composite articles exhibiting high fibre content, low void content and excellent visual and mechanical properties, and capable of use for the construction of mass transportation vehicles, in particular, in the automotive and aerospace industries.

Abstract: A grid welding machine operating continuously based on the electrical resistance principle having a stationary longitudinal frame, whereon a horizontal group of parallel longitudinal wires can continuously be moved in the production direction by means of a feeding device, and having a pulling-off device, by means of which the cross wires can be pulled off a coil or rings and fed transversely to the group of longitudinal wires in a transfer device extending transversely, which transfer device can pick up multiple cross wires and convey them one after the other towards the longitudinal wires and bring them into contact with said longitudinal wires in the correct orientation according to the scaling of the cross wires and drop them there, and having electrodes and counter electrodes the weld surfaces of which can be pressed against each other with the points of intersection formed between the longitudinal wires and the cross wires therebetween.

Abstract: A grid welding machine operating continuously based on the electrical resistance principle having a stationary longitudinal frame, whereon a horizontal group of parallel longitudinal wires can continuously be moved in the production direction by means of a feeding device, and having a pulling-off device, by means of which the cross wires can be pulled off a coil or rings and fed transversely to the group of longitudinal wires in a transfer device extending transversely, which transfer device can pick up multiple cross wires and convey them one after the other towards the longitudinal wires and bring them into contact with said longitudinal wires in the correct orientation according to the scaling of the cross wires and drop them there, and having electrodes and counter electrodes the weld surfaces of which can be pressed against each other with the points of intersection formed between the longitudinal wires and the cross wires therebetween.

Abstract: A process for the preparation of a fiber reinforced composite article that facilitates manufacturing of composite articles with reduced cycle times, said composite articles exhibiting high fibre content, low void content and excellent visual and mechanical properties, and capable of use for the construction of mass transportation vehicles, in particular, in the automotive and aerospace industries.

Abstract: An apparatus for extricating and transferring wires cut into lengths from a loose, random wire bundle into a single layer of parallel wires, the apparatus comprising a fanning device for fanning out the wire bundle (B) into a plurality of random wire layers at least one extraction device for extracting a partial bundle (T, T?) of wires (D) from the fanned-out wire layers (F) a wire guide conduit inclined relative to the horizontal and a portioning device for extracting an intermediate bundle (Z) from the partial bundle, transferring the intermediate bundle into an operative range of combing-out devices, and forming a bundle (K) to be combed out wherein each combing-out device has a plurality of continuously drivable combing-out wheels having a rotation direction and being distributed over the length of the wires (D) to be processed, and provided with teeth for combing out the wires (D), and wherein the rotation direction of the combing-out wheels is oriented counter to the inclination of the wire guide condui

Abstract: A method and an apparatus for extricating and transferring wires cut into lengths from a loose, random wire bundle (B) into a single layer (L) of parallel wires, in which first the loose, random wire bundle is fanned out into a plurality of random wire layers, and from the fanned-out, random wire layers, a partial bundle (T, T?) is extracted and put into the operative range of a portioning device (4, 4?), whereupon a plurality of wires (D) are extracted simultaneously as an intermediate bundle (Z) from the partial bundle and, for forming a bundle to be combed out (K), are put into the operative range of a plurality of combing-out devices (33); then for ordering the wires (D) of the bundle to be combed out, one wire (D2) at a time is engaged in succession by a combing-out device (33?; 33?) and combed out, and the combed-out wire then slides and/or rolls by gravity on inclined faces (20, 20?; 24) into the single layer.

Abstract: A welding machine, operating by the electric resistance welding method, for producing wire grid mat of longitudinal and transverse wires (L, Q) crossing one another and welded together at the crossing points, having a plurality of welding units (1, 1?), located transversely to the production direction, which at least for each longitudinal wire have one upper welding head (2) with an upper electrode, located above the grid production plane (X-X), and one lower welding head (5) along with a lower electrode movable counter to the upper electrode, the lower welding head being located below the grid production plane (X-X), having a common rail system (26, 28, 31) with at least two common rails extending along the welding line (S-S), for delivering the welding current to the welding electrodes, in which for continuously variable positioning of all the welding units transversely to the production direction (P1) along the welding line, adjusting devices (56, 57) and clamping devices (64, 65, 66; 64?, 65?, 66?) as wel

Abstract: A device for producing a prefabricated cast concrete element. The device includes a plurality of central structural elements, each of the plural central structural elements comprising two parallel welded wire lattice mats, straight bridging wires welded at each end to the two wire lattice mats holding the wire lattice mats at a predetermined mutual separation and an insulating member penetrated by the bridging wires arranged with its cover surfaces parallel to the wire lattice mats and at a predetermined distance to the wire lattice mats. Shuttering walls are arranged on opposing sides of the plural central structural elements, each of the shuttering walls comprising a plurality of sections connectable to one another. A plurality of spacing members composed of rustproof materials are arranged and dimensioned for defining a spacing between each of the plural structural elements and the shuttering walls for receiving concrete for forming concrete shells.

Abstract: A welding machine, operating by the electric resistance welding method, for producing wire grid mat of longitudinal and transverse wires (L, Q) crossing one another and welded together at the crossing points, having a plurality of welding units (1, 1?), located transversely to the production direction, which at least for each longitudinal wire have one upper welding head (2) with an upper electrode, located above the grid production plane (X-X), and one lower welding head (5) along with a lower electrode movable counter to the upper electrode, the lower welding head being located below the grid production plane (X-X), having a common rail system (26, 28, 31) with at least two common rails extending along the welding line (S-S), for delivering the welding current to the welding electrodes, in which for continuously variable positioning of all the welding units transversely to the production direction (P1) along the welding line, adjusting devices (56, 57) and clamping devices (64, 65, 66; 64?, 65?, 66?) as wel

Abstract: Device for producing a prefabricated cast concrete element having a plurality of central structural elements each comprising two parralel welded wire lattice mats, straight bridging wires welded at each end to the two wire lattice mats holding the wire lattice mats at a predetermined mutual separation and an insulating member penetrated by the bridging wires arranged with its cover surfaces parallel to the wire lattice mats and at a predetermined distance to the latter and having two concrete shells which each adjoin the insulating member and completely enclose the wire lattice mats of the structural elements, characterized in that a plurality of central structural elements are each arranged with their narrow sides abutting one another with selectable spacing between two shuttering walls and the spaces between the insulating members of the structural elements and the shuttering walls completely filled out with concrete.

Abstract: A method and an apparatus for extricating and transferring wires cut into lengths from a loose, random wire bundle (B) into a single layer (L) of parallel wires, in which first the loose, random wire bundle is fanned out into a plurality of random wire layers, and from the fanned-out, random wire layers, a partial bundle (T, T?) is extracted and put into the operative range of a portioning device (4, 4?), whereupon a plurality of wires (D) are extracted simultaneously as an intermediate bundle (Z) from the partial bundle and, for forming a bundle to be combed out (K), are put into the operative range of a plurality of combing-out devices (33); then for ordering the wires (D) of the bundle to be combed out, one wire (D2) at a time is engaged in succession by a combing-out device (33?; 33?) and combed out, and the combed-out wire then slides and/or rolls by gravity on inclined faces (20, 20?; 24) into the single layer.

Abstract: Building element having two parallel welded wire grid mats (1, 2), of straight web wires (7) which hold the wire grid mats at a predetermined distance apart and are joined at each end to the two wire grid mats. An insulating body (8) is arranged between the wire grid mats, through which the web wires pass. At least one of the wire grid mats is in the form of a grid reinforcement mat which possesses a minimum strength of the weld nodes which complies with the static requirements applicable to the building element, corresponding mechanical strength of the grid mat wires (3, 4) and also corresponding diameters and mutual spacings of the grid mat wires. The web wires are arranged in predetermined directions relative to the wire grid mats, and the insulating body is held at a predetermined distance from each of the wire grid mats.

Abstract: Method and apparatus for the continuous manufacture of structural members, in which two parallel, flat wire mesh mats comprising longitudinal and transverse wires intersecting with each other and welded together at the points of intersection are advanced on a production line and between the wire mesh mats is introduced an insulating body, whereupon the straight link wires are passed through the insulating body and with their ends welded to the wire mesh mats, so that the latter are held a predetermined distance apart, wherein first an endless, coherent web of insulating material is produced from individual insulating panels and advanced and then the insulating body is cut off this web of insulating material in a selectable length.

Abstract: Apparatus for welding a wire mesh of crossing longitudinal and transverse wires, with a rotatable upper and lower electrode configured as a disk-like polygon, at least the upper electrode (2) being movable upwardly and downwardly and the upper and lower electrodes (2; 6) being rotatable to their working position in which a polygon surface extends parallel to the longitudinal wires, whereby the upper electrode and the lower electrode are provided at each polygon surface (8) with an internal distribution channel (13; 15) for cleaning air, preferably pressurized air, each distribution channel having at least one blow-out opening (14, 14′; 16, 16′) terminating in the center on the polygonal surface (8) and a distributor (3, 3′) for the cleaning air being associated with each of the upper electrode and the lower electrode, the distributors being each provided with a connector (11) for feeding cleaning air and with internally disposed air channels (12) connected to the connector and to the distrib

Abstract: Building element having two parallel welded wire grid mats (1, 2), of straight web wires (7) which hold the wire grid mats at a predetermined distance apart and are joined at each end to the two wire grid mats. An insulating body (8) is arranged between the wire grid mats, through which the web wires pass. At least one of the wire grid mats is in the form of a grid reinforcement mat which possesses a minimum strength of the weld nodes which complies with the static requirements applicable to the building element, corresponding mechanical strength of the grid mat wires (3, 4) and also corresponding diameters and mutual spacings of the grid mat wires. The web wires are arranged in predetermined directions relative to the wire grid mats, and the insulating body is held at a predetermined distance from each of the wire grid mats.

Abstract: Building element having two parallel welded wire grid mats (1, 2), of straight web wires (7) which hold the wire grid mats at a predetermined distance apart and are joined at each end to the two wire grid mats. An insulating body (8) is arranged between the wire grid mats, through which the web wires pass. At least one of the wire grid mats is in the form of a grid reinforcement mat which possesses a minimum strength of the weld nodes which complies with the static requirements applicable to the building element, corresponding mechanical strength of the grid mat wires (3, 4) and also corresponding diameters and mutual spacings of the grid mat wires. The web wires are arranged in predetermined directions relative to the wire grid mats, and the insulating body is held at a predetermined distance from each of the wire grid mats.

Abstract: Apparatus for welding a wire mesh of crossing longitudinal and transverse wires, with a rotatable upper and lower electrode configured as a disk-like polygon, at least the upper electrode (2) being movable upwardly and downwardly and the upper and lower electrodes (2; 6) being rotatable to their working position in which a polygon surface extends parallel to the longitudinal wires, whereby the upper electrode and the lower electrode are provided at each polygon surface (8) with an internal distribution channel (13; 15) for cleaning air, preferably pressurized air, each distribution channel having at least one blow-out opening (14, 14′; 16, 16′) terminating in the center on the polygonal surface (8) and a distributor (3, 3′) for the cleaning air being associated with each of the upper electrode and the lower electrode, the distributors being each provided with a connector (11) for feeding cleaning air and with internally disposed air channels (12) connected to the connector and to the distrib

Abstract: Building element including of two parallel welded wire grid mats (1, 2), of straight web wires (7) which hold the wire grid mats at a predetermined distance apart and are joined at each end to the two wire grid mats, and of an insulating body (8) which is arranged between the wire grid mats and through which the web wires pass, wherein at least one of the wire grid mats is in the form of a grid reinforcement mat which possesses a minimum strength of the weld nodes which complies with the static requirements applicable to the building element, corresponding mechanical strength of the grid mat wires (3, 4) and also corresponding diameters and mutual spacings of the grid mat wires, and wherein the web wires are arranged in predetermined directions relative to the wire grid mats, and the insulating body is held at a predetermined distance from each of the wire grid mats.

Abstract: Building element having two parallel welded wire grid mats (1, 2), of straight web wires (7) which hold the wire grid mats at a predetermined distance apart and are joined at each end to the two wire grid mats. An insulating body (8) is arranged between the wire grid mats, through which the web wires pass. At least one of the wire grid mats is in the form of a grid reinforcement mat which possesses a minimum strength of the weld nodes which complies with the static requirements applicable to the building element, corresponding mechanical strength of the grid mat wires (3, 4) and also corresponding diameters and mutual spacings of the grid mat wires. The web wires are arranged in predetermined directions relative to the wire grid mats, and the insulating body is held at a predetermined distance from each of the wire grid mats.