Aswivel,swivelling,spinny, orrevolving chair is achair 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 swivelcastors was illustrated by theNuremberg noble Martin Löffelholz von Kolberg in his 1505 technologicalilluminated manuscript, the so-calledCodex Löffelholz, on folio 10r.[1] It is purported thatThomas Jefferson drafted theUnited States Declaration of Independence in 1776 while sitting on a swivel chair of his own design.[2]
Swivel chairs may have wheels on the base allowing the user to move the chair around their work area without getting up. This type is common in modernoffices and are often also referred to asoffice chairs. Office swivel chairs, like computer chairs, usually incorporate agas lift to adjust the height of the seat, but not usually large (e.g.recliner) swiveling armchairs.
Adraughtsman's chair is a swivel chair without wheels that is usually taller than an 'office chair' for use in front of adrawing board. They also have a foot-ring to support the legs when it is not possible to reach the ground.
When the swivel chair is installed in anaircraft, anautomobile or on astair lift and can not move independently because it is on a fixed base, it is rather called aswivel seat. Some swivel seats are alsobucket seats.[3]
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An earlier prototype of a swivel chair dates back to a 1505 illustrated manuscript from a German noble named Martin Löffelholz von Kolberg. He conceived of a chair that could twist on its legs and adjust its height.[4]
Using an English-styleWindsor chair, possibly made by and purchased fromFrancis Trumble or Philadelphia cabinet-makerBenjamin Randolph,Thomas Jefferson constructed an early swivel chair in 1775.[5][2][6][7][8] Jefferson heavily modified the Windsor chair and incorporated top and bottom parts connected by a central iron spindle, enabling the top half, known as the seat, to swivel on casters of the type used inrope-hung windows. It had no wheels. When theSecond Continental Congress met inPhiladelphia, Jefferson's swivel chair is purported to be the chair he sat upon when he drafted theUnited States Declaration of Independence in 1776.[9] Jefferson later had the swivel chair sent to hisVirginia plantation,Monticello, where he built a "writing paddle" onto its side in August 1791.
Since 1836, the chair has been in the possession of theAmerican Philosophical Society located in Philadelphia.[10][11][12]
{{cite book}}:|work= ignored (help)Revolving Windsor Chair with Writing Arm
