Feeder dog is an important component of a "drop feed" sewing machine. A set of feed dogs typically resembles two or three short thin metal bars, cut with diagonal teeth, which move back and forth in the slots on the sewing machine needle plate. The goal is to pull ("feed") the fabric through the machine, in separate steps, between the stitches.
This arrangement called "drop feed" refers to the way the dog falls under the needle plate when it returns for the next stroke. Allen B. Wilson created it over a period of time from 1850 to 1854, while also developing a swivel hook. Wilson called it a "four-way bait", referring to the four movements the dog performed during one full stitch: climbed into the fabric, returned to pull the fabric to the next puncture, down from the cloth and under the needle of the plate, and then advanced to return to the position early.
Almost all drop-feed sewing machines can vary their stitch lengths; This is usually controlled by a lever or dial on the front of the machine. They are usually also able to pull back fabric , to form a backstitch.
Video Feed dogs
See also
- Dog (technique)
Maps Feed dogs
References
Source of the article : Wikipedia
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