IMPROVEMENTS IN OR RELATING TO SUPPORTING ARTICLES/LOADS

摘要

A locking arrangement for selectively preventing displacement of a tubular article/load support structure (2) circumscribing the upstanding elongate support (1) and adapted for lengthways displacement along upstanding elongat ed support, wherein the tubular support structure (2) incorporates means (13) f or releasably locking the tubular support structure against said lengthways displacement in such manner as to be able to maintain the article/load at an y required position relative to the elongate support.