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UNDERTHREAD WATCHING DEVICE FOR A SEWING OR EMBROIDERING MACHINE
UNDERTHREAD WATCHING DEVICE FOR A SEWING OR EMBROIDERING MACHINE
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机译:缝纫机或绣花机的抓线装置下
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摘要
In the lower thread monitoring system for an embroidery or sewing machine, the sensor stirrup forms part of a switch, assembled at the underside of the needle plate. The stirrup is moved against the action of a return force by the deflection of the lower thread.
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