Stilt for mine workings - has tube and deforming member to recieve downwards load from leg

摘要

The stilt for association with a leg of a mine roof support, comprises a tube and a deforming member for receiving a downward load from the leg, the tube being formed with a plurality of longitudinally extending slots, the deforming member having portions which engage in and move along respective ones of the slots and the relative dimensions of the tube and deforming member being such that movement of the portions along respective slots is accompanied by deformation of the tube.