| 摘要 |
<p>According to this invention a flexible or elastically deformable ring device 4 is constructed, which can be applied to the core A to form overturned cisterns C supporting a plate 1 supporting the base of the cistern, so that they can then be disassociated from the said cistern base C, also releasing supporting plate 1 when the base of cistern C is free from core A and is sufficiently consolidated. A substantial innovative feature of the invention is that it comprises non-rigid ring 4, that is for example manufactured from a sufficiently elastic material or from two or more circular segments which are hinged and hooked together, this ring 4 being provided with an inner shoulder formed from the contact between a cylindrical part 4a and a circular crown part 4b, which is capable of providing a support at the top of former core A, in addition to another surface which is capable of supporting a plate 1 which supports the concrete of cistern base C. <IMAGE></p> |
