| 摘要 |
PCT No. PCT/NL97/00026 Sec. 371 Date Jul. 29, 1998 Sec. 102(e) Date Jul. 29, 1998 PCT Filed Jan. 29, 1997 PCT Pub. No. WO97/28331 PCT Pub. Date Aug. 7, 1997An adjustable working platform construction suitable for being used in distillation columns and the like. The working platform can be supported on rings present on the inner side of the column wall. The working platform is built up of a system of spokes which are connected to a central plate. Two diametrically opposed first spokes are fixedly connected to the plate and at least two pairs of second spokes positioned on either side of the first spokes are pivotably connected to the plate. Two third spokes, which are arranged in diametrically opposed relationship, are detachably accommodated in receiving holes in the central plate. The system of spokes supports cover plates, which are shaped to cover the entire column section.
|
