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Gripper thread lap indicator - indicating exhaust whilst a considerable length of yarn is still available
Gripper thread lap indicator - indicating exhaust whilst a considerable length of yarn is still available
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机译:夹线器圈数指示器-指示排气,同时仍有相当长的纱线可用
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摘要
Gripper thread lap indicator in lock stitch sewing machines to indicate a predetermined length of thread long before it is exhausted comprises a feeler mounted pivotally to sense the thickness of the thread lap on the gripper bobbin, the feeler being interconnected with a signal generator to produce a signal depending on the preset position of the feeler. Feeler is connected to low voltage electric supply to produce an optical signal.
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