| 摘要 |
An automatic hoop forming machine comprising a wire decoiling and feeding element connected to a series of rollers designed to pull, take out some irregularities and partially impart a curve before said wire is fed on to a hoop guide roll of the desired diameter to form a hoop-shaped element. The ends are overlapped and welded prior to cutting. Any number of hoops may be formed automatically and are eminently useful as reinforcing members within cementitious materials used to make manholes, for example.
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