These loops enclose the fabric's edge within the seam, creating a finished look more quickly than a standard sewing machine can.

In Wilson’s rotary hook and stationary bobbin, the lockstitch was made by locking the needle thread with the bobbin thread by passing the needle thread loop under the bobbin. The driving shaft carried ...

Back by popular demand, Behind the Seams, led by beloved instructor Zeldy Schwei, is once again offering a Sunday afternoon ...

How, if the needle just bobs up and down, does the thread lock in place? A great GIF reveals what is going on inside the machine as the needle does its little dance: ...