half segments 42 and 42 b welded to the distal side edges of the plates 22 an 24 as shown in fig6 small notches 46 are defined along the proximal longitudinal side edges of the plates 24 in order to reduce the amount of welding that need to be made welding full height without notches is also contemplated longitudinally extending flat plates not shown could be welded centrally all along the distal longitudinal side edges of the plates 22 and 24 to further increase the strength of the anchoring member 18 each wall segment of the cruciform anchoring member 18 would then have a t shape now referring to fig7 and 8 the construction of the cabinet 20 will be described as shown in fig8 the core of the cabinet 20 comprises a central metal plate 48 having opposed central longitudinally extending top and bottom slits 50 and 52 top and bottom cross plates 54 and 56 fig7 are respectively mounted in the top and bottom slits 50 and 52 a hook or handle 58 is provided on the top edge of the top cross plate 54 for allowing the cabinet 20 to be lift once assembled a generally circular top cover 60 is welded on top of the central plate 48 and the top cross plate 54 the.