| 摘要 |
Apparatus for making a seam from two threads, each thread being formed into bridging loops and prone loops, each prone loop of one thread embracing a double portion between two bridging loops of the other thread, such doubled portions forming the prone loops. The apparatus has opposed sewing-machine-type needles which move together and apart, crossing a reference plane between the needles in a pattern whereby a loop between the eye of one needle and the previously made seam, is penetrated when the first needle starts to retreat from its furthermost excursion past the reference plane, by the other needle during its approach to the reference plane. The needles of a pair are slightly staggered laterally so that they pass one another, preferably with light contact, during loop penetration.
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