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| Figure: illustrates the knitting action of a crochet machine: |
2. Clearing the warp overlap. The weft tube rises slightly on completion of its traverse movement to allow the needle to move out of its trick to clear its old warp overlap.
3. The warp overlap wrap. The warp guide rises between the needles and automatically overlaps from the left, lowering itself again on the right side of its needle.
4. Warp knock-over and underlap. The needle now retires into its trick to knockover the old overlap, whilst the warp guide is cammed under its needle to the start position for its next overlap, thus completing the closed lap pillar. NB:The closed lap is used for the carbine needle but the alternating overlap of the open lap pillar stitch used with the conventional latch and bearded needles gives a more balanced loop structure. Tricot lapping with two guide bars produces a secure fabric which does not unrove
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