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Páginas: 2 (430 palabras)
Publicado: 11 de abril de 2011
FREEZER
According to some sources, in 1805, the American inventor Oliver Evans designed the first cooling machine. Ten years later, his compatriot the doctor John Goorie, a doctor of Florida,constructed a refrigerator based on Evans's design to do ice that was cooling the air for his patients of yellow fever.
But all that they were not but palliative of scanty efficiency. It was necessary towait 1834. That year the North American, resident in London, Jacob Perkins, made for the first time of the history the artificial ice. When his employees presented the first sample, he limited itselfto saying: ' Really it is very cold '. It was an important step for the manufacture of the first refrigerators.
The first modern device that used Perkins's invention, appeared in 1850. It was avoluminous great object, like cupboard in whose interior was getting big blocks of ice. These chambers were isolating with lining of slate, and the food was settling in small compartments, since the ice,together with the insulating material, was occupying almost everything the useful space. More than refrigerators or refrigerators were simple iceboxes that were not differing in much from the "cupboards of snow " of the 16th century.
About 1879 there went out to the market the first domestic refrigerator of mechanical nature. It invented and was made by the German Karl they go Boundary. It wasusing a circuit of ammonia, and his system was driven by means of steam bomb. Of this appliance more than twelve thousand units were sold in 1891, one year after the engineer Seeger was giving to therefrigerator his external definitive form.
In 1923, Balzer von Platen and Karl Munters invented the electrical refrigerator, the model Electrolux, whose patent bought the North American signatureKelvinator, which made it of series two years later.
But it was a dangerous due domestic appliance use of toxic gases as the ammonia and the sulphuric acid. Problem that excelled itself with the...
According to some sources, in 1805, the American inventor Oliver Evans designed the first cooling machine. Ten years later, his compatriot the doctor John Goorie, a doctor of Florida,constructed a refrigerator based on Evans's design to do ice that was cooling the air for his patients of yellow fever.
But all that they were not but palliative of scanty efficiency. It was necessary towait 1834. That year the North American, resident in London, Jacob Perkins, made for the first time of the history the artificial ice. When his employees presented the first sample, he limited itselfto saying: ' Really it is very cold '. It was an important step for the manufacture of the first refrigerators.
The first modern device that used Perkins's invention, appeared in 1850. It was avoluminous great object, like cupboard in whose interior was getting big blocks of ice. These chambers were isolating with lining of slate, and the food was settling in small compartments, since the ice,together with the insulating material, was occupying almost everything the useful space. More than refrigerators or refrigerators were simple iceboxes that were not differing in much from the "cupboards of snow " of the 16th century.
About 1879 there went out to the market the first domestic refrigerator of mechanical nature. It invented and was made by the German Karl they go Boundary. It wasusing a circuit of ammonia, and his system was driven by means of steam bomb. Of this appliance more than twelve thousand units were sold in 1891, one year after the engineer Seeger was giving to therefrigerator his external definitive form.
In 1923, Balzer von Platen and Karl Munters invented the electrical refrigerator, the model Electrolux, whose patent bought the North American signatureKelvinator, which made it of series two years later.
But it was a dangerous due domestic appliance use of toxic gases as the ammonia and the sulphuric acid. Problem that excelled itself with the...
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