| These looper caterpillars cannot shorten nor lengthen their segments at will, as other caterpillars, but only bend their bodies. |
| With looper gone, though I expect Everet will do nearly as well at center, it means a certain loss of team work. |
| Use decorative thread in the upper looper and adjust the machine for a short, rolled-edge stitch. |
| The thread was caught by a looper and detained so that it then became enchained in the next loop of thread. |
| Thread the serger upper looper with decorative thread, then overlock the mesh edge with a 3-thread rolled hem stitch. |
| A looper on the underside in place of the horizontal needle. |
