A Study of Thread Tensions on a Lockstitch Sewing Machine (Part II)
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A study of thread tensions on a lockstitch sewing machine was made, measuring simultaneously both the needle and bobbin thread tensions. Investigates the relationship between the peak tensions generated during the experiments and the corresponding seam balance. It was found that under the conditions of the experiments it is possible to define an envelope of conditions under which balanced seams will be obtained.
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[2] Tetsuya Sakai,et al. Analysis of Tightening Tension Wave in Single-Needle Lockstitch Sewing Machine , 1986 .
[3] Rikuhiro Kinoshita,et al. Disengagement of Needle Thread from Rotating Hook, Effects of Its Timing on Tightening Tension, Industrial Single-Needle Lokstitch Sewing Machine , 1984 .