Support system for drainage grid has foot carrying vertical threaded shaft passing through transverse bore in head of bolt engaging eye on bottom of grid

摘要

The drainage grid (12) may be set in a balcony or terrace. It has eyes (16,18) on the frame (14) underneath each corner (10). The shaft of a bolt (32) passes through the eye, and the bolt is held in place by a locknut (34). The head of the bolt (22) has a threaded transverse through bore (24) which accommodates a threaded vertical shaft (26) which is screwed into a broad flat foot (27,28).