Alva John Fisher
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Alva J. Fisher
Alva J. Fisher
Alva J. Fisher was an American inventor and engineer who made significant contributions to the development of household appliances in the early 20th century. Born in , Fisher is best known for his invention of the electric washing machine, which revolutionized the way people did laundry and greatly reduced the time and effort required for this household chore. Fisher's washing machine design, patented in , featured a motor-driven agitator that moved clothes through a tub of water, a concept that remains the basis for modern washing machines. Throughout his career, Fisher worked on improving his invention, introducing features such as the centrifugal extractor, which spun clothes to remove excess water, and the electric wringer, which further streamlined the laundry process. Fisher's innovative spirit and engineering expertise also led him to develop other household appliances, such as the electric dishwasher and the electric sewing machine. His inventions not only made everyday tasks more convenient but also contributed to the empowerment of women by reducing the time and physical labor required for household chores, allowing them to pursue other
Nació en la ciudad de Chicago, perteneciente al estado de Illinois, en Estados Unidos, en este año, pero no se sabe a ciencia cierta el día y casi nada sobre su vida personal.
- Antecedentes
La inspiración para idear el invento estuvo directamente asociada al desgastante trabajo que implicaba lavar la ropa en el siglo XIX y sus antecesores.
Una de las metodologías de lavado que se utilizaron antaño consistió en introducir la ropa en redes de pesca que se dejaban en el agua para que la corriente hiciera su “trabajo”.
Por su parte, las primeras lavadoras manuales proponían más o menos lo mismo: ingresar la ropa presionada en un cilindro que facilitaba el ingreso del agua y así “limpiaba” la prenda sucia. En los comienzos del siglo XIX se usaba la caja de madera que giraba mediante una manivela.
La primera lavadora industrial la patentó en Inglaterra, en el año , el ingeniero John Tyzacke. En el siguiente siglo, en el año , el alemán Jacob Christian Schäffer presentó su modelo.
A mediados del siglo XIX, Hamilton Smith, patentó la primera máquina de lavar con tambor rotatorio. Y en , William Thomas le añadió una innovadora función: calentamiento del agua a través del empl
Nearly half a century before the world’s first electric domestic washing machine was introduced by US inventor Alva John Fisher, his British namesake, Nottinghamshire engineer John Fisher unveiled a novel design for a domestic washing machine that employed a strikingly different concept to today’s rotary machines.
‘This invention,’ wrote The Engineer, ’consists in combining with a tub or other suitable vessel, for containing the articles to be treated, a blowing apparatus for forcing atmospheric air or any suitable gas for depuritating, bleachingor otherwise treating the contents of the tub or vessel, whether soap ley, plain, or acidulated water or other liquor be employed.
The article explained that during operation the tub is partially filled with hot soapy water, the clothes are placed into this water, and then a “blowing apparatus” attached to the vessel by a number of small pipes is used to force air through the ’through and amongst the articles contained therein.’
’It is well known,’ continued The Engineer, ’that linen and other articles of clothing, when worn or exposed to the impurities of the atmosphere, become soiled through the deposit upon them of sooty and oth
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