Reinforced means

Abstract

This invention relates to reinforcement of various items by the use of a fibre substrate such as filament tape. The reinforced items may be used for strengthening abrasive paper, packaging and cabling.

1 . An abrasive means comprising a substrate having fibers therein, said substrate having at least one self-adhesive surface to which an abrasive layer is adhered. 
   
   
       2 . An abrasive means as claimed in  claim 1  wherein said fiber substrate is formed of a type of material wherein the fibers in the material are aligned in substantially the same direction and are not interwoven. 
   
   
       3 . An abrasive means as claimed in  claim 2  wherein the fibers within said fiber substrate are formed of glass filaments or fiberglass. 
   
   
       4 . An abrasive means as claimed in  claim 1  wherein said fiber substrate is a strong self-adhesive packaging tape. 
   
   
       5 . An abrasive means as claimed in  claim 1  wherein said fiber substrate is substantially 0.1 mm in thickness. 
   
   
       6 . An abrasive means as claimed in  claim 1  wherein the fiber substrate carries double-sided adhesive surfaces to which two separate abrasive layers are affixed to form in use a saw blade. 
   
   
       7 . An abrasive means as claimed in  claim 1  wherein said abrasive layer is an abrasive product having a paper backing. 
   
   
       8 . An abrasive means as claimed in  claim 7  wherein said abrasive layer comprises sandpaper or emery paper. 
   
   
       9 . An abrasive means as claimed in  claim 7  wherein said abrasive layer is substantially 0.2 mm in thickness. 
   
   
       10 . An abrasive means as claimed in  claim 7  wherein said fiber substrate and said abrasive layer are of an equal length and width such that when they are combined they form a single symmetrical sheet of abrasive means, such length and width being selected according to the desired use. 
   
   
       11 . An abrasive means as claimed in  claim 7  wherein the resulting abrasive means is substantially 0.3 mm in thickness. 
   
   
       12 . An abrasive means as claimed in  claim 7  wherein said sheets of abrasive means are scribed and folded around a thin elongated wooden stick such that a sharper edge is retained in use. 
   
   
       13 . An abrasive means as claimed in  claim 7  wherein said abrasive means is cut into strips of a selected length and width according to desired use. 
   
   
       14 . An abrasive means as claimed in  claim 13  wherein said abrasive means when cut into strips is cut along the length in the same direction as the substantially aligned fibers on the fiber substrate such that maximum strength is retained in use. 
   
   
       15 . An abrasive means as claimed in  claim 14  wherein said strips of abrasive means are supported in a saw frame such that maximum tension is retained in use. 
   
   
       16 . An abrasive means as claimed in  claim 14  wherein said strips of abrasive means are supported in a buffing wheel in use. 
   
   
       17 . An abrasive means as claimed in  claim 14  wherein said strips of abrasive means are supported in rolls, discs or belts. 
   
   
       18 . An abrasive means as claimed in  claim 17  wherein the reinforced means when for use on a disc further includes a strip of adhesive. 
   
   
       19 . An abrasive means as claimed in  claim 18  wherein said strip of adhesive is narrower than width of the reinforced means. 
   
   
       20 . An abrasive means as claimed in  claim 7  wherein a water resistant layer is provided between said substrate and said abrasive layer in use. 
   
   
       21 . An abrasive means as claimed in  claim 20  wherein said water resistant layer comprises an open web layer of plastics material.