发明名称 Threading arrangement for chainstitch sewing on a sewing machine
摘要 A chainstitch thread guide is formed with a thread guiding trough which extends into a channel on one side of a partitioning wall in a sewing machine to receive needle thread extending upwardly from a tensioning device to a take-up lever and further receives such needle thread extending downwardly from the take-up lever on the way to a sewing needle.
申请公布号 US4296701(A) 申请公布日期 1981.10.27
申请号 US19800204420 申请日期 1980.11.06
申请人 THE SINGER COMPANY 发明人 LARSEN, ROBERT H.
分类号 B01D46/00;B01D53/86;D05B51/00;D05B53/00;F23J15/00;F24C15/20;F24H3/04;(IPC1-7):D05B1/14 主分类号 B01D46/00
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