| 摘要 |
The procedure for forming a helicoidal column consists of stacking on the same spindle plates (2) which are displaced from each other along a helix. The interval between the plates is filled with a hardening paste material which is levelled off along the outline (7) and/or edges (6) of successive plates. The plates of the same shape and the same or different dimensions. They are threaded with a spacing on a spindle (1) with spacers (3) of smaller dimensions than the plates interposed. The plates are drilled with holes (5) to facilitate their erection.
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