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Chester Greenwood (December 4, 1858 – July 5, 1937) was an American engineer and inventor, known for inventing the earmuffs in 1873. [1] He reportedly came up with the idea while ice skating and he asked his grandmother to sew tufts of fur between loops of wire. [2] His patent was for improved ear protectors. He manufactured these ear ...
The Isabel and Chester Greenwood House is an historic house at 112 Hill Street in Farmington, Maine. Built in 1896, it is an architecturally distinctive sophisticated Queen Anne Victorian. It is also notable as the home of Chester Greenwood, who invented the earmuff. It was listed on the National Register of Historic Places in 1978. [1]
Two people wearing behind-the-neck earmuffs. Thermal earmuffs are worn for protection from the cold. Because the ears extend from the sides of the head to gather sound waves, they have a high skin surface-area-to-volume ratio, and very little muscle tissue, causing them to be one of the first body parts to become uncomfortably cold as temperatures drop.
From the first Apple computer to the COVID-19 vaccine, here are the most revolutionary inventions that were born in the U.S.A. in the past half-century.
Earmuffs cover a person's ears for thermal protection. Earmuffs consist of a thermoplastic or metal head-band, that fits over the top of the head, and a pad at each end, to cover the external ears. Earmuffs were invented by Chester Greenwood in 1873. [199] 1873 Silo. Two farm silos. A silo is a structure for storing bulk materials.
Chester Greenwood (1858–1937), U.S. – thermal earmuffs; Lori Greiner (born 1969), U.S. – Silver Safekeeper anti-tarnish lining (jewelry organizers) and multiple consumer products, 120 US and foreign patents; James Gregory (1638–1675), Scotland – Gregorian telescope; William Griggs (1832–1911), England – a process of photolithography
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March 13 – Chester Greenwood patents earmuffs. June 8 – Herman Hollerith receives a U.S. patent for his punched card calculator. July – James Blyth operates the first working wind turbine at Marykirk in Scotland. [11] [12] July 19 – Dorr Eugene Felt receives the first U.S. patent for his comptometer. [13] August – Anna Connelly ...