Kerb and drainage installation and method and apparatus for fabrication thereof

Abstract

A combined curb and drainage installation is formed as a slip-formed or extruded product, or else as a number of discrete pre-cast blocks, suitably of concrete, and has a curb overhang portion 6 which overhangs an opening of an inlet 2 which leads directly to a drainage duct 3 below. Water readily flows into the duct via the inlet, but cycle tires are prevented from entering the inlet by the curb overhang portion 6.

1 . A combined curb and drainage installation, comprising a drainage inlet, having a substantially downwardly directed opening and leading to a longitudinal drainage duct, and a curb adjacent to the opening, wherein the curb has an overhanging portion, which at least partly overhangs the opening.  
     
     
         2 . An installation according to  claim 1 , wherein the opening is substantially vertical.  
     
     
         3 . An installation according to  claim 1 , wherein the inlet comprises a longitudinally extending slot.  
     
     
         4 . An installation according to  claim 1 , wherein the overhanging portion of the curb extends over more than half of the width of the opening.  
     
     
         5 . An installation according to  claim 1 , wherein the overhanging portion of the curb extends over substantially the entire width of the opening.  
     
     
         6 . An installation according to  claim 1 , comprising a slip-formed or extruded product.  
     
     
         7 . An installation according to  claim 1 , comprising a plurality of discrete, pre formed blocks laid end-to-end.  
     
     
         8 . A method of producing a combined curb and drainage installation, the method comprising arranging end-to-end a plurality of pre-formed blocks as claimed in  claim 7 .  
     
     
         9 . A method of producing a combined curb and drainage installation comprising the single step of slip-forming or extruding the curb and drainage installation together in situ, wherein a curb overhang portion is formed which projects at least partly over a substantially downwardly extending opening to an inlet leading to a longitudinally extending drainage slot.  
     
     
         10 . A method according to  claim 9 , wherein the installation is slip-formed or extruded around a forming member which forms the drainage duct.  
     
     
         11 . Apparatus for fabricating a combined curb and drainage installation, the installation having a curb overhang portion which projects at least partly over a substantially downwardly extending opening to an inlet, which inlet leads to a longitudinally extending drainage duct, the apparatus comprising a slip-forming mould or extrusion head, the shape of which is such as to form the installation with the curb overhang portion.  
     
     
         12 . Apparatus according to  claim 11 , further comprising a forming member around which the installation is slip-formed or extruded to form the drainage duct.