A wire screening for classifying material. The screening may include a plurality of interwoven warp and weft wires where the weft wires are individually coated with a coating that expands and collapses to enhance performance and longevity of the screen. The coating of one or more weft wires may differ in at least one characteristic from the coating of one or more other weft wires. The warp wires can be individually coated to enhance performance and/or longevity of the screening. Binding blocks can be used in place of weft wires. The coating of one or more warp wires may differ in at least one characteristic from the coating of one or more other warp wires and/or one or more weft wires. The screening can include a plurality of uncoated weft and warp wires where the crimp depth of each wire forming each opening has a different crimp depth.

A hexagonal wire netting, a process for manufacturing such a wire netting and a device for manufacturing a hexagonal wire netting, the device including an assembly of tubes for leading the wires of which every other is twisted into a spiral shape, a spindle assembly and a drum receiving the wire netting, the drum being provided with detent elements. Between each tube leading the spirally twisted wire and the cooperating spindle a straightening guide is located having an inlet opening cooperating with the tube and an outlet opening cooperating with the spindle. The detent elements are arranged on the drum in such a way that the produced wire netting has meshes in which the proportion of the width to the length is less than 0.75.

A hexagonal wire netting, a process for manufacturing such a wire netting and a device for manufacturing a hexagonal wire netting, the device including an assembly of tubes for leading the wires of which every other is twisted into a spiral shape, a spindle assembly and a drum receiving the wire netting, the drum being provided with detent elements. Between each tube leading the spirally twisted wire and the cooperating spindle a straightening guide is located having an inlet opening cooperating with the tube and an outlet opening cooperating with the spindle. The detent elements are arranged on the drum in such a way that the produced wire netting has meshes in which the proportion of the width to the length is less than 0.75.

A lattice structure is composed of intersecting longitudinal elements and transverse elements, e.g. wires, strands, ropes, rods and/or profiles, with intersection points allocated to the longitudinal elements and transverse elements.

The longitudinal elements and transverse elements, extending in unifold and/or multifold fashion, are connected to one another at least in the intersection points, in particular via twisting, passing into one another and/or knotting with one another.

A lattice structure is composed of intersecting longitudinal elements and transverse elements, e.g. wires, strands, ropes, rods and/or profiles, with intersection points allocated to the longitudinal elements and transverse elements.

The longitudinal elements and transverse elements, extending in unifold and/or multifold fashion, are connected to one another at least in the intersection points, in particular via twisting, passing into one another and/or knotting with one another.

A sheath for constructing a reinforced concrete pile, characterized in that the sheath is formed by at least one circular knit having a series of meshes helically positioned so as to form a pipe. A method for constructing a reinforced concrete pile includes excavating to form a well, inserting one end of a reinforcing rod in a sheath, positioning the sheath on an area of the rod and introducing the rod into the well, installing a tremie pipe inside the rod, and filling the well with concrete using the tremie pipe.

A sheath for constructing a reinforced concrete pile, characterized in that the sheath is formed by at least one circular knit having a series of meshes helically positioned so as to form a pipe. A method for constructing a reinforced concrete pile includes excavating to form a well, inserting one end of a reinforcing rod in a sheath, positioning the sheath on an area of the rod and introducing the rod into the well, installing a tremie pipe inside the rod, and filling the well with concrete using the tremie pipe.

A wire for geotechnical use is described, for making protecting nets, made of high strength steel. The wire is at least partially shaped in a waveform and has a plurality of crests and valleys arranged alternately one to another. A protecting net is also described, usable in the geotechnical field, having a wire at least partially shaped in a waveform for making the mesh, and/or as a reinforcing element of the net. An anchoring device, a guywire and an energy dissipating device are also described, each having a plurality of wires at least partially shaped in a waveform.

A wire for geotechnical use is described, for making protecting nets, made of high strength steel. The wire is at least partially shaped in a waveform and has a plurality of crests and valleys arranged alternately one to another. A protecting net is also described, usable in the geotechnical field, having a wire at least partially shaped in a waveform for making the mesh, and/or as a reinforcing element of the net. An anchoring device, a guywire and an energy dissipating device are also described, each having a plurality of wires at least partially shaped in a waveform.

This invention in one embodiment comprises a cylindrical rod with a rotating, removable loop head inserted into the center of the top end of the rod. The loop head is inserted into a vertical hole drilled into the top end of the rod, wherein the loop head is able to rotate in the hole. The loop head has a plurality of outwardly radially extending circumferential loops that receive wire for bending and weaving into the Viking Knit. Preferably, the rod also has an anchor hole, drilled diagonally through the rod near its top end, for receiving and securing a wire. Preferably, the rod also has a conical wire wrap attachment at the bottom of the rod for making wired end caps to cover or enclose the finished Viking Knit Weave. In another embodiment, this invention comprises a hollow cone with a rotating, removable loop head inserted in either or both ends of the cone.