| 摘要 |
<p>The invention is concerned with a drop-head support assembly for use with builders scaffolding and is directed to an assembly comprising an upright pillar, a shuttering support member slidably mounted on the pillar, and a wedge device pivotally attached to the pillar to be moved between a horizontal position where it supports the support member and a vertical position where it releases the support member. The upper end of the pillar may also be adapted to receive a detachable head plate device.</p> |
