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Rotary loop taker with a detachable loop seizing point
Rotary loop taker with a detachable loop seizing point
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机译：旋转式抓线器，带有可拆卸的抓线点
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摘要
A rotary loop taker for a lock-stitch sewing machine having a detachable loop seizing point and detachable raceway-defining portion. The inwardly facing vertical wall in the middle and final portions of the bobbin case raceway is defined by a replaceable member that in all cases is formed separately from the annular frame. The lower ledge in the middle and final portions of the raceway is defined by a member that may be formed separately from the annular frame, or may be formed integrally with the frame. In the preferred embodiments of the rotary loop taker, the two members referred to may both be formed integrally with the detachable loop seizing point, or only the member that defines the vertical wall may be formed integrally with the loop seizing point. If desired, neither of the two members mentioned may be formed integrally with the detachable loop seizing point.
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