E - Fixed Constructions – 04 – G
Patent
E - Fixed Constructions
04
G
E04G 23/08 (2006.01) B23P 15/00 (2006.01) B65D 88/06 (2006.01) B65D 88/08 (2006.01) E04H 7/06 (2006.01)
Patent
CA 2109831
ABSTRACT This invention relates to a method for knocking down a circular tank, comprising steps of separating the side wall of the tank from its bottom plate, cutting the side wall into portions along a spiral line provided on the periphery of the tank in the direction from the lower end to the upper end, and removing the portions while temporarily supporting the side wall, said temporarily supporting step being conducted so that the lower end of the removed portion is gradually lowered and the location to support the side wall shifts as the removing step proceeds. According to this invention, one can safely and inexpensively knock down a circular tank. The method of this invention can be used even if some structures exist in the peripheral area of the circular tank. Further, this method does not need a step for providing rotatably movable means nor step for rotating the upper part of the tank, resulting in a simple method that is easy implement.
Kato Hideo
Goudreau Gage Dubuc
Kyuseki Kogyo Co. Ltd.
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