Precast concrete catch basin with form for gutter inlet

Abstract

A precast concrete catch basin is provided with an integral transverse gutter inlet shaping form across the front. The form is spaced from the top slab of the catch basin and forms therewith a gutter inlet for the passage of water into the catch basin. The transverse form is arcuate in shape and serves as a form and top surface for a concrete gutter inlet cast against it. Anchor bolts are provided in the side walls of the catch basin and extend outwardly through the transverse form into the area of the concrete gutter so as to secure the inlet shaping form to the side walls and to anchor the catch basin to the gutter after the gutter has been cast in the field against the transverse gutter shaping form.

I claim: 
     
       1. In a catch basin assembly for collecting surface drainage from a street gutter wherein said catch basin has a pair of vertical substantially parallel side walls, a rear wall connecting the side walls and a top slab also connecting said side walls, the improvement comprising: an integral transverse form .[.attach.]. .Iadd.attached .Iaddend.to and extending across the front of said side walls and spaced from said top slab to define therewith an inlet opening to accommodate the passage of water into said catch basin, said transverse form being adapted to form, and remain in place as a water conducting surface for, a cast concrete gutter.   
     
     
       2. The improved catch basin assembly as set forth in claim 1 wherein said transverse form has a smooth arcuate shape .Iadd.in cross-section. .Iaddend. 
     
     
       3. The improved catch basin assembly as set forth in claim 2 wherein said side walls are provided with anchor means extending outwardly of said side walls and through said transverse form to secure it .Iadd.and the cast concrete gutter which it forms .Iaddend.to said side walls. .Iadd.4. The improved catch basin assembly of claim 1 or 2, said form having at least one flange extending along one edge thereof, said flange projecting angularly inward from an arcuate concave surface, whereby said flange is 
     
     
        embedded within the concrete gutter which is formed. .Iaddend. .Iadd.5. The improved catch basin assembly of claim 1 or 2, said form having a pair of upper and lower flanges extending along its upper and lower edges respectively, the upper flange projecting downward, the lower flange projecting inward, whereby said flanges are embedded within the concrete gutter which is formed. .Iaddend.