| 摘要 |
A zigzag sewing machine including means to oscillate the needle at right angle to the work feeding direction, first control means to vary the overstitch width, second control means to vary the stitching direction, third control means to vary needle stitching position, and manual control means for the sewing of buttonholes. The manual control means is operably connected to control cam means to have said control cam means actuated together so as to engage with cooperating follower means at corresponding tracks of said control cam means.
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