| 摘要 |
This disclosure teaches a silo having a vertical cylindrical wall of a flexible material, preferably of textile fabric suspended from a supporting frame and preferably engaged sealingly to a rigid lower closure. The flexible material, such as the textile fabric is wound in a spiral band with its lower margin connected to the upper margin of the last preceding turn to form the vertical cylindrical wall of the silo. By this expedient vertical seams are avoided so that weft threads of the textile fabric are substantially spared from tangential hoop stresses. The textile fabric is preferably woven and coated with rubber or plastic.
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