Probably India did not have a clear local name earlier because, like Chinait seemed to be the principal portion of the entire world, and so simply the world itself. Sumeru or Meruthe only one inhabited with humans identical to us. The only question was how much of it was taken up by India.
Starts American Carpet Cleaning Co. Thurman invented his gasoline powered vacuum cleaner Hubert Cecil Booth of London invented the electric vacuum. Kenney introduced variations on the same theme. Later he uses a cloth to filter the dirt. The birth of the vacuum cleaner is due to a number of advancements in science and technology brought about by the Industrial Revolution.
By the mid s factories were producing tens of thousands of manufactured items along with tons of pollution. Dirt and soot were everywhere. The first vacuum cleaners had to be operated manually. Two persons were needed for sume machines were to large, one to operate the bellows and the other to move the mouthpiece over the floor.
The dust was blown into the air. Prior to the introduction of "electric suction cleaners", most housewives used brooms and dust pans. Many of the mid-Victorian homes had large and small rugs and carpets on the floors of principal rooms.
In order to remove dirt, dust and animal dander from the nap of these floor coverings, the rugs and carpets were removed from the home and beaten with a device similar to an oversized fly swatter called a rug beater. Patent papers 29, US have revealed that a vacuum sweeper was produced by Daniel Hess in July 10, Hess, a resident of West Union, Iowa, called his invention a carpet sweeper, not a vacuum.
The machine did, in fact, have a rotating brush like other sweepers, however, the machine also possessed an elaborate bellows mechanism on top of the body to generate suction. He states that the air is cleansed as it passes through the device. There is no record that this machine was every produced.
All of these early vacuums were awkward, bulky, and expensive. In the late s, Melville Bissell began marketing his invention, a carpet sweeper with revolving brushes which picked up the dust and dirt and deposited it inside the sweeper housing.
It depended on the rotation of the wheels to drive the sweeping mechanism and only removed debris from the uppermost regions of the carpet nap. Thurman invented his gasoline powered vacuum cleaner, in and some historians consider it the first motorized vacuum cleaner.
Thurman's machine was patented on October 3, patentLater he started a horse drawn door to door service vacuum system in St. The next technological leap in cleaning came inwhen Hubert Cecil Booth of London invented the electric vacuum. It was so large that its vacuum pump and motor were housed in a horse-drawn cart, from which a foot long hose was extended and snaked into the house.
This event was such a novelty that society ladies in England invited their friends over for vacuum parties! The vacuum cleaner greatly improved sanitation and health. Tons of germ-laden dust were removed from theatre seats, home and shop floors.
At about the same time, two Americans introduced variations on the same theme. Corinne Dufour invented a device that sucked dust into a wet sponge. A corps of cleaners moved the machine from house to house.
It comprised of a portable and easy to store vacuum device which was powered by 'any one person such as the ordinary domestic servant ' who would have the task of compressing a bellow type contraption to suck up dust via a removable, flexible pipe to which a variety of shaped nozzles could be attached.
Chapman and Skinner in San Francisco invented a moveable electric vacuum in It weighed ninety-two pounds and used a fan 18 inches in diameter to produce the suction. A woman needed her man to move the heavy vacuum around, giving new meaning to the term domstic togetherness.
Because of its size and cumbersome nature, it did not sell well. Best known for the vacuum cleaner that bears his name, Jim Kirby's life goal was to reduce or eliminate drudgery wherever it existed. After watching his mother's cleaning effort result in the dust settling back onto everything in the house, he developed his concept of a vacuum cleaner.
His first cleaner, invented inused water for dirt separation. Indispleased with the unpleasant task of disposing of dirty water, he went back to work and designed a system that used centrifugal action and cloth to filter the dirt. James Murray Spangler, an inventor and janitor in Canton, Ohio, patentedJune 2, the first portable electric suction cleaner, making life a bit easier and cleaner for the homeowner.The Content - It's not just about batteries.
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Background. We think of a battery today as a source of portable power, but it is no exaggeration to say that the battery is one of the most important inventions in the history of mankind.
History. Mankind has fought battles on the sea for more than 3, years.
Even in the interior of large landmasses, transportation before the advent of extensive railroads was largely dependent upon rivers, canals, and other navigable waterways.. The latter were crucial in the development of the modern world in the United Kingdom, the Low Countries and northern Germany, for they enabled the.
Giulio Camillo Delminio (), a famous but forgotton Renaissance thinker, was born from parents of Croatian origin.
According to Frances A. Yates he was "one of those people whome their contemporaries regard with awe as having vast potentialities".
In terms of casualties, the Indo-Pakistani Naval War of was the second major naval battle including the dispatch of an Indian aircraft carrier group, over dead on both sides, and the combined loss of a frigate, two destroyers, a submarine, and .
Ten Inventions That Inadvertently Transformed Warfare Some of the most pivotal battlefield innovations throughout history began as peacetime inventions. After the war in , the Ottoman Empire embarked on a program of naval expansion for its fleet and as a response to that, in , the cruiser Georgios Averof was bought from Italy.
In , an English naval mission arrived, headed by Admiral Tuffnel, in order to recommend improvements in the organization and training of the navy.