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  • Bernina (entreprise)

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  • Bernina International

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    Bernina International AG is a privately owned international manufacturer of sewing and embroidery systems. The company was founded in 1893 in Steckborn, Switzerland, by a Swiss inventor Fritz Gegauf. The company develops, manufactures, and sells goods and services for the textile market, primarily household sewing-related products in the fields of embroidery, quilting, home textiles, garment sewing, and crafting. The origins of the company lie in the invention of the hemstitch sewing machine, invented in 1893 by a Swiss inventor and entrepreneur Karl Friedrich Gegauf. Currently, the company's products include sewing machines, embroidery machines, serger/overlocker machines, and computer software for embroidery design.

  • Feed dogs

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    Needle plate, presser foot, and feed dogsFeed dogs are the critical component of a "drop feed" sewing machine. A set of feed dogs typically resembles two or three short, thin metal bars, crosscut with diagonal teeth, which move back and forth in slots in a sewing machine's needle plate. Their purpose is to pull ("feed") the fabric through the machine, in discrete steps, in-between stitches. Closeup of feed dogs showing teeth rising up through the needle plateThis arrangement is called "drop feed" in reference to the way the dogs drop below the needle plate when returning for the next stroke. Allen B. Wilson invented it during the time period 1850 to 1854, while also developing the rotary hook. Wilson called it a "four-motion feed", in reference to the four movements the dogs perform during one full stitch: up into the fabric, back to pull the fabric along to the next stitch, down out of the fabric and below the needle plate, and then forward to return to the starting position. Virtually all drop-feed sewing machines can vary their stitch length; this is typically controlled by a lever or dial on the front of the machine.

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