Small, serrated metal plates beneath the presser foot of a sewing machine, these components work in conjunction with the presser foot to advance fabric during stitching. Their synchronized up-and-down and forward-and-backward motion grips the material and moves it under the needle at a controlled pace. This precise movement is essential for consistent stitch length and overall sewing quality. Consider them analogous to the gears in a clock, steadily moving the hands forward.
These essential components contribute significantly to the precision and efficiency of the stitching process. Without their controlled movement, consistent stitch length and straight seams would be nearly impossible to achieve. Furthermore, different types are available, each designed for specific fabric types and sewing needs. Their invention was a pivotal advancement in sewing machine technology, enabling more automated and consistent stitching, ultimately contributing to the mass production of textiles.
