词条 | Wilkerson dental chair |
释义 |
The Wilkerson dental chair is a hydraulic dental chair, first patented on 20 November 1877, and designed by Basil Manly Wilkerson, known for his dental inventions.[1] DescriptionIn the 1882 edition of Codman and Shurtleff's catalogue, the chair is referred to as "showing great originality,... all cranks are dispensed with and levers substituted for them" The chair was raised by a foot lever ("requires very little effort, and occupies but 8 seconds") and lowered by another lever ("sinks rapidly and noiselessly").[2] Other levers allowed the chair to rotate ("through the whole circle") and rock back and forth. In addition, minor movements were possible, such as the raising or lowering of the back and headrest, slight rocking of the seat ("to prevent the patient form sliding forward"), footstool length and height adjustment, and the small of the back support (which converted into "a capital child's seat"). The upholstery could be ordered in either green or garnet plush fabric or in leather. The price was $177.[1] Improvements in the 1899 model enabled a patient to lie in a horizontal position, and included a spittoon.[3] References1. ^1 {{cite web|title=Basil Manly Wilkerson|url=https://www.fauchard.org/publications/42-basil-manly-wilkerson|publisher=Pierre Fauchard Academy|accessdate=31 August 2017}} 2. ^Display board at an exhibit in the Mohave Museum of History and Arts. 3. ^{{cite web|title=New Model Wilkerson Dental Chair, 1899|url=https://www.thehenryford.org/collections-and-research/digital-collections/artifact/251894/|publisher=The Henry Ford|accessdate=31 August 2017}} 3 : Dental equipment|Chairs|Individual models of furniture |
随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识,基本涵盖了大多数领域的百科知识,是一部内容自由、开放的电子版国际百科全书。