Well, they are typically used to sew things together...
what is the function of a pulley in a sewing machine
what is the function of the head of the sewing machine
Sewing headSewing head
holds the needle
guides the thread??
The Singer 120 Stitch Function Sewing Machine - 7444 is known for having the most functions. This machine is very smooth and quiet!
to keep the bobbin in place
its function to sew fabrics or other materials quickly, efficiently and precisely.
to help move the machine safely
The presser foot is a special part of the machine that holds the fabric down so the stitches remain even. I have not seen a pressure regulator on a home sewing machine.
Sewing headSewing head
This model of Singer sewing machine does not offer a cross stitch function.