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  2. Rotary hook - Wikipedia

    en.wikipedia.org/wiki/Rotary_hook

    A rotary hook. The rotary hook or rotating hook is a bobbin driver design used in lockstitch sewing machines since the 19th century. It triumphed over competing designs because it can run at higher speeds with less vibration. Rotary hooks and oscillating shuttles are the two most common bobbin drivers in use today.

  3. White Family Rotary - Wikipedia

    en.wikipedia.org/wiki/White_Family_Rotary

    The White Family Rotary or White FR, later White Rotary or White Rotary Electric, was the first rotary hook sewing machine produced by the White Sewing Machine Company, introduced circa 1900. [1] It joined the successful White Vibrating Shuttle on White's expanding product line and eventually eclipsed it. It was originally sold as a treadle ...

  4. Swivel chair - Wikipedia

    en.wikipedia.org/wiki/Swivel_chair

    A swivel, swivelling, spinny, or revolving chair is a chair with a single central leg that allows the seat to rotate 360 degrees to the left or right. A concept of a rotating chair with swivel castors was illustrated by the Nuremberg noble Martin Löffelholz von Kolberg in his 1505 technological illuminated manuscript , the so-called Codex ...

  5. Timeline of United States inventions (before 1890) - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_United_States...

    1776 Swivel chair. A swivel or revolving chair is a chair with a single central leg that allows the seat to spin around. Swivel chairs can have wheels on the base allowing the user to glide the chair around their work area without getting up. This type of chair is common in modern offices and is often also referred to as an office chair.

  6. Lockstitch - Wikipedia

    en.wikipedia.org/wiki/Lockstitch

    To make one stitch, the machine lowers the threaded needle through the cloth into the bobbin area, where a rotating hook (or other hooking mechanism) catches the upper thread at the point just after it goes through the needle. The hook mechanism carries the upper thread entirely around the bobbin case so that it has made one wrap of the bobbin ...

  7. List of knots - Wikipedia

    en.wikipedia.org/wiki/List_of_knots

    Chain stitch – a sewing and embroidery technique in which a series of looped stitches form a chain-like pattern; Chair knot (Fireman's chair knot) – knot tied in the bight forming two adjustable, lockable loops; Chinese button knot – a decorative knot; Cleat hitch; Clove hitch – two successive half-hitches around an object

  8. Vibrating shuttle - Wikipedia

    en.wikipedia.org/wiki/Vibrating_shuttle

    Later sewing machines abandoned such designs in favor of the faster rotary and/or hook-based designs. Main article: Bobbin driver Rotary and hook-based designs are superior because they do not cause their sewing machine to shake and 'walk' the way that vibrating and transverse shuttles do.

  9. Glossary of sewing terms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_sewing_terms

    sewing Sewing is an ancient craft involving the stitching of cloth, leather, animal skins, furs, or other materials, using needle and thread. Its use is nearly universal among human populations and dates back to Paleolithic times (30,000 BC). Sewing predates the weaving of cloth. sewing circle

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