| 摘要 |
The support comprises a threaded tube (1) which is rotary mounted on one end plate (9) with a moveable rivet (6), with washers between (7,8). A threaded bar (3) is fixed to the other end plate (4). The end plates have U-shaped clamps, the initial width of which matches the thickness of the compartment plates. A U-shaped book mock-up consists of an inner and outer sleeve which can be continuously adjusted in height and are fixed in any position by clamping brackets on the edge of the one sleeve (12). <IMAGE> |
