| 摘要 |
<p>A large and massive panel 12 is manoeuvred and supported by means of a work piece support 10 which has an upper horizontal work piece support surface 22 for receiving the panel in extended surface-to-surface contact. An array of apertures 24 is provided in the work piece support surface, beneath same of which are provided low friction bearing elements 28 moveable between a raised, load-bearing position in which the panel can be slid onto the work piece support and a retracted position in which the panel is left in extended surface to surface contact with the work piece support.</p> |
