Vacuum Cleaner

Topics: Vacuum cleaner, Vacuum, Suction Pages: 4 (987 words) Published: July 23, 2007
Engineering Studies-

Household Appliances

Macquarie Anglican Grammar School

Engineering Report

The Vacuum Cleaner

By Paul George

2nd March, 2007

Summary

The vacuum cleaner is a household appliance that cleans by suction. It is generally used on a textured surface, such as carpet, and is pushed over the surface, sucking up dust and dirt as it goes. The suction is created by an air pump, a partial vacuum; it creates a difference in pressure between the inside of the machine and the outside air and dirt and dust is taken in to the lower pressure zone. Friction on the carpet causes the dust to be removed from the carpet, or other surface.

Table of Contents
1. History and developments
- Ives W. McGaffey
-Hubert Cecil Booth
-James Murray Spangler/Hoover
2. Changing Designs and their Impact on Society
- Design Changes
- Impacts on Society
- Factors to consider when purchasing a vacuum cleaner
3. Engineering Developments
4. Types of Vacuum Cleaners
5. Components and How a Vacuum Works
- Components
- How it Works

History and Developments

The very first machine using the vacuum principle was patented by Ives W. McGaffey in 1869. His cleaner was manually powered, operated by turning a hand crank. This design made it difficult to operate, as it had to be pushed along the floor at the same time as turning the handle. There were many machines of this type shortly afterwards, with the first electrically driven version ‘carpet sweeper' patented in 1900.

The first powered cleaner containing an inbuilt cleaner was developed my Hubert Cecil Booth. His device was a large one, driven by an oil engine. It had to be drawn by horses due to its size and the invention, patented in 1901, never really took off.

Next to come was an electric vacuum cleaner made from a box, a pillow case and a fan. It was invented by a janitor named James Murray Spangler and was the first vacuum cleaner to incorporate a rotating brush to loosen...
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