Precast concrete meter pit and apparatus for making same

Abstract

A precast concrete meter pit consisting of a plurality of precast concrete hollow elongated cylindrical wall sections in end to end relation to one another is fabricated by utilizing a slip form packerhead apparatus in which the wall sections are formed with an annular slip ring when concrete is injected into the slip form apparatus.

1 . In apparatus for making a precast concrete meter pipe wherein a packerhead assembly includes a trowel assembly, a rollerhead assembly and a jacket in outer spaced concentric relation to said packerhead assembly, the improvement comprising:
 a slip ring positioned within said jacket;   said trowel assembly being of generally cylindrical configuration and terminating in a radially inwardly and downwardly inclined lower edge; and   an annular pallet positioned beneath said trowel assembly having a riser circumscribing an inner annular edge thereof and extending upwardly within said trowel assembly.   
     
     
         2 . In apparatus according to  claim 1  wherein said slip ring is of annular configuration with stepped upper and lower surfaces. 
     
     
         3 . In apparatus according to  claim 1  wherein a radius of said slip ring is equivalent to a width of said jacket. 
     
     
         4 . In apparatus according to  claim 1  wherein said jacket includes circumferentially spaced bores and radially inwardly projecting upper and lower pin members that are aligned with said spaced bores. 
     
     
         5 . In apparatus according to  claim 4  wherein said upper and lower pin members are secured to circumferentially spaced levers. 
     
     
         6 . In apparatus according to  claim 5  wherein said levers are moveable between dual positions. 
     
     
         7 . In apparatus for making a dual piece precast concrete meter pipe wherein a packerhead assembly includes a trowel assembly and a rollerhead assembly and a jacket in outer spaced concentric relation to said packerhead assembly, the improvement comprising:
 a slip ring positioned within said jacket;   said trowel having a radially inwardly and downwardly inclined lower edge and extending along an outer circumference of a pallet; and   said pallet is of annular configuration having a riser at an inner edge thereof engaging said trowel lower edge.   
     
     
         8 . In apparatus according to  claim 7  wherein a vibrator unit is mounted under said pallet. 
     
     
         9 . In apparatus according to  claim 7  wherein said riser tapers upwardly. 
     
     
         10 . A meter pit comprising a plurality of precast concrete hollow elongated cylindrical wall sections in end-to-end relation to one another, a first of said sections having a circular support ledge, said circular support ledge projecting radially inwardly from one end of said first section and a second of said sections including circumferentially spaced notches at one end. 
     
     
         11 . A meter pit according to  claim 10  wherein a terminal end of said ledge is substantially flat and squared to a longitudinal axis of said meter pit. 
     
     
         12 . A meter pit according to  claim 10  wherein said first and second sections have a lap joint between adjoining ends thereof. 
     
     
         13 . A meter pit according to  claim 10  wherein said first section is removable from said second section. 
     
     
         14 . A meter pit according to  claim 10  wherein said first and said second sections are of uniform thickness throughout except for an upper end of said first section terminating in said support ledge. 
     
     
         15 . A meter pit according to  claim 10  wherein said circumferentially spaced notches are diametrically opposed to one another and which together define water line receiving openings.