Loading quay for lorries is made up of concrete boxes with three sides, opposite sides having inwardly-projecting lips at top

摘要

The loading quay for lorries is made up of concrete boxes (1a - 1c) with three sides (4 - 6). The opposite sides (4, 5) have an inwardly-projecting lip (7, 8) at the top. Paving slabs are fitted on to these. An Independent claim is included for a jack on which the boxes may be levelled.