AU2006100270B4 - High tensile mesh fencing - Google Patents

Description

1 Australian Patents Act 1990 Complete Specification Innovation Patent High Tensile Mesh Fencing The Following Statement is a full Description of this invention, including the best method of performing it known to me.

The invention is described in the following statement HIGH TENSILE STEEL MESH FENCING 0 For many years chain wire fencing with barbed wire on top has been accepted as a Z cheap deterrent to keep predators from gaining access to properties.

Barbed wire has been around for hundreds of years and up till now has never been improved on.

It is time we stopped counting our profits and turn to counting our losses should our major facilities be destroyed.

The invention is a high tensile steel wire mesh panel designed to replace chain wire, Sand is fitted with steel razor mesh to replace barbed wired.

SThe chain wire type of fencing is made from soft mild steel wire which can be readily cut with pliers, tin snips, wire cutters and small bolt cutters.

IDWe have been led to believe that fencing of many types is erected only to keep out the Shonest people.

SWe will change that believe to included "and keep out the dishonest" as well.

This high tensile steel type of fencing is made from high tensile steel wire with metal shrouding around it. It cannot be cut with conventional wire cutting tools.

Razor mesh panels are more effective than barded wire as it cannot be cut with pliers, tin snips, wire cutters or small bolt cutters.

This new type of high tensilesteel fencing will make chain wire and barded wire become obsolete.

High tensile mesh has been designed as a high security steel fencing system for use in protecting Govt, commercial and industrial institutions.

IND THIE INVENTION The sheet hig-h tensile steel wire mesh fencing is made from 2.5mm diameter tensile steel wire with a shear strength of 1400 mpa.

o The high tensile steel wire is shrouded with 0.5mm steel cover to give it lateral strength. The metal shrouding around the high tensile steel wire gives it stability Z against high wind gusts and pressure forced upon it The metal shrouded high tensile steel wire is laid out across each other to form a diamond or square pattern. The diamond and square patterns can be altered to vary sizes from large to small in area before being spot welded together. When the shrouded steel wire strands are laid across together to form a pattern, they are then spot welded together on every joint The steel wire strands can be laid directly over each other or woven between each strand before being spot welded together. Once spot welded together, it then forms a sheet of high tensile steel mesh.

The steel mesh panels are hot dipped galvanised after manufacture.

IND The sheets of high tensile steel mesh can be rolled into a small diameter parcel for transport. Once opened after transportation the sheets will return to their natural flat C~1 state.

If tampered with the high tensile steel mesh sheet will return to its flat natural state for installation.

No specialised tools or tensioning devises are required to install the mesh onto erected posts to form a panel.

The high tensile steel mesh is bolted or fixed to vertical posts with vandal proof fittings.

The vertical posts have cross rails welded to them to make a pipe or tubular panel for the high tensile steel mesh to be fixed to.

The size of the metal tubing used to make the frames is variable according to the situation required.

The tubular pipe frames have high tensile steel rods inserted into them to prevent cutting with a hacksaw.

The top of the high tensile steel wire panels can be fitted with steel razor mesh in place of barded wire.

The razor mesh is made of high tensile steel wire strands shrouded with a metal jacket to give it stability. The shrouds of razor mesh include "Bards" to act as a deterrent as with barded wire. The bards are designed to stop a predator putting his hands through the razor mesh opening and not being able to get a grip on the mesh to haul himself up to vault himself or climb over the fence.

IO

The steel razor mesh cannot be cut with tin snips, pliers, small bol cutters or any other conventional tooL 0 The tubular pipe vertical rails have offset footings to concrete onto the ground. Offset S footings will resist wind pressure and resist any deliberate pushing over of the fence.

The panels when erected can be join together end to end to form a perimeter.

The mesh fencing can be fixed to already positioned posts to form a perimeter.

The mesh fencing can be fixed to older type fencing posts to upgrade them to new standards.

The top of the vertical posts are offset at 45 degrees and the steel razor mesh is fixed C to these offsets to prevent climbing over the fence panel.

The steel razor mesh covers the entie top area between the posts and overlaps the offset cranks by 100mm.

IND The vertical post can vary in design to give flexibility to the various fence panels Savailable.

C- The vertical post designs are; shape is to resist climbing over. The shape starts at zero ground level and opens up at the top to form a gap for a predator to fall into and be trapped within the panel.

shaped fence panels have the design beginning halfway up the frame. The design opens up at the top to form a gap for a predator to fall into and become trapped within the paneL shape vertical posts have a radius rolled on both sides at the top of the frame. Razor mesh is fitted at the top rolled section and razor mesh is fitted between these rolled sections. High tensile steel mesh is fitted to the face of the panel and fixed with vandal proof fittings.

"S and "S2" models have razor mesh fitted to the top sections to prevent climbing over it. The face of the panels is fitted with high tensile steel mesh.

The invention may be better understood with reference to the illustration of the embodiments of the invention.

Cc) In the drawings Figure 1 type shows tubular frame I with 45 degree offset on top and 3, degree offset at bottom. With high tensile mesh 4 on front and rear faces of panel with razor mesh 5 on top offsets.

Figure 2 type show tubular frame 6 with high tensile mesh 7 fitted on front and rear faces of frame with razor mesh 8 fitted to top offset. Top offset 9 and bottom offset 10 on framework.

Figure 3 type show framework 11 with high tensile mesh 12 on face of frame and razor mesh 13 on top circular offsets. 14 shows circular offsets on top of frame and 15 shows offsets on bottom of frame.

Figure 4 "S1-S2" type shows framework 16 with high tensile mesh 17 fitted to face a frame. Razor mesh 18 is fitted to top offsets and razor mesh 19 fitted to top horizontal section. The top offset of frame is shown 20 and bottom shown 21.

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