| 摘要 |
<p>The drawing table support consists of a weight-compensating column supporting the table-top, which can be adjusted in height, fixed in position, and inclined. The locking mechanism for regulating the height, the blocking mechanism for preventing rotation and stops for preventing tipping on the rotational horizontal support are adjustable so that they can slide before excessive load limits are reached. An inner, hollow column moves inside a prismatic, outer, hollow column and is guided by means of lengthwise grooves and by two angular guide grooves diametrically opposite the outer, hollow column in which are balls. Stop plates move in two facing holes in the side of the outer, hollow column.</p> |
