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5th Grade Women Inventors Project
Transcript of 5th Grade Women Inventors Project
SMOKE REDUCTION INVENTION This invention of Mary Walton's helped reduce pollution, just like she wanted it to. It also guaranteed people healthier lives, and controlled the amount of smoke being emptied into the air. Mary Walton, without realizing it, reduced global warming and helped save our Earth. NOISE REDUCTION INVENTION Mary Walton also wanted to stop noise pollution. The elevated railroad systems in New York City made a lot of noise and drove people crazy. So Mary Walton set up a model train system in her basement, and figured out how to reduce the sound. She surrounded the rails in a wooden, boxed frame lined with cotton and filled with sand. The noise was absorbed by the materials in the box! She then tested her device under the struts of the real railroad. Everyone loved her idea, and she had it patented on February 8th, 1881, in New York. She sold the rights of her invention to the Metropolitan Railroad for $10,000. The funny thing is, many well known inventors, such as Thomas Edison, tried to solve this problem and failed, and then a woman came along and solved it in a very simple way. EFFECTS OF THE NOISE REDUCTION INVENTION Mary Walton's noise reduction invention made New York City and other cities a much quieter place. It was adopted by railroad companies across the country. People also benefited because they then had healthier lives. If Mary Walton hadn't invented this, think how much louder New York City would be!
CURRENT INVENTION If Mary Walton were alive today, she would probably have invented sound proof walls for our houses so that we wouldn't have to listen to all of the sound from cars and other things outside. The walls might have a switch on them that turns the sound on and off. This would also be useful for people who live around airports and major roads. LIFE
Margaret E. Knight was a poor girl who lived in Maine with her widowed mother and her brothers. She was born in 1838. She loved inventing when she was young, and she made many things for her brothers. For example, she made her brothers sleds that won all the races in the winter. She also made her mother a foot warmer for the long nights she stayed up working.
When Margaret was twelve she went to work at a textile mill. One day, she saw a shuttle fly off one of the looms and hit a young girl in the head. Margaret started to invent a rail that would stop the shuttles from flying off the looms. By the time she was a teenager, the rails had been installed on many looms.
Margaret invented over one-hundred machines and patented over twenty of them in her lifetime. She died on October 12th, 1914. She was 75 years old. FLAT BOTTOMED PAPER BAG
MACHINE After the Civil War, Margaret Knight went to work at a paper bag plant in Massachusetts. There, paper bags were being made by hand. Margaret wanted to make a faster way of gluing flat bottomed paper bags together. She made a machine that did this quickly and efficiently.
Apparently, someone else thought this was a good idea. In this case, it was a man named Charles Annan. He stole Margaret Knight's idea, and patented it before she could. Margaret took Annan to court to prove that the idea was hers. Charles argued that a woman couldn't have invented this machine. Margaret showed her notes to the judge, and Annan was proved guilty. Then Margaret was finally able to patent her machine in 1871. EFFECTS OF INVENTION Margaret Knight's invention made a big impact on the paper bag industry. We still use her invention today. Her machine made workers' jobs a lot easier. The amount of paper bags being used in stores increased suddenly. CURRENT INVENTION If Margaret were alive today, she would have started an agency to help poor or underprivileged people promote their ideas or inventions. The agency would help protect their ideas from being stolen by wealthy business men and women. LIFE Mary Anderson was born in Greene County, Alabama in 1866. She went to live in Birmingham, Alabama with her widowed mother and sister. When she was twenty-seven, she moved to Fresno, California. There, she operated a cattle ranch and a vineyard. In her lifetime, she was a real estate developer, a rancher, a viticulturist, and the inventor of the windshield wiper. THE WINDSHIELD WIPER One day, Mary Anderson was riding in a New York City streetcar during a rainstorm. The cab driver kept having to open the window so that he could see where he was going. People had been trying to come up with a solution to this problem. The idea was to create a lever in the car that would split the window in half so that the driver could see. This didn't work. If a driver opened the windshield, he or she would be greeted by a sheet of rain or snow. Mary Anderson invented a lever on the inside of the car that moved an arm surrounded with rubber on the outside. She made many sketches of her invention before finally getting it patented for seventeen years in November of 1903. Mary offered to sell her rights to a large Canadian company. They did not think that her invention had any commercial value. Eventually, her patent expired, and someone improved the Windshield Wiper, patented it, and sold it for a lot of money. EFFECTS OF THE WINDSHIELD WIPER Mary Anderson's invention saved many lives. It improved conditions for all drivers. Also, the automobile manufacturing business grew because of her invention. Now, people even use windshield wipers on their headlights! CURRENT INVENTION If Mary Anderson were still alive today, she would've invented Windshield Wipers that clean the windows of your house. You could turn them on with a switch on your wall. They would be able to be painted to match your house too, so that they wouldn't be so noticeable. This is a picture of the paper bag machine This is a picture of the elevated railroad systems Sketch of the windshield wiper WEBSITES Famous Women Inventors. Famous Women Inventors, n.d. Web. 6 Dec. 2012.
<http://www.women-inventors.com/Margaret-Knight.asp>. About.com. About.com, n.d. Web. 11 Dec. 2012. <http://inventors.about.com/
library/inventors/blanderson.htm>. Lemolson-mit. Massachusetts Institute of Technology, Nov. 1996. Web. 30 Nov.
2012. <http://web.mit.edu/invent/iow/walton.html>. REFERENCES 1. 2. "Mary Anderson (inventor)." Wikipedia. N.p.: Wikipedia, 2012. N. pag. Print. "Mary Walton." Wikipedia. N.p.: Wikipedia, 2012. 1. Print. BOOKS 1. Marvelous Mattie. New York: Farrar Straus Giroux, n.d. Print. 2. Girls Think of Everything. Boston: Houghton Mifflin Company, n.d. Print. I HOPE YOU ENJOYED MY PREZI! BYE!!! 1. 2. 3.