the rotary snowplow
DESCRIPTION
The Rotary Snowplow. - A Canadian Invention !. WHO?. Dr. J.W. Elliott, a Toronto dentist, designed the first rotary snowplough. Orange Jull, another Canadian, improved Elliott’s design. WHEN?. The first rotary snowplough was designed in 1869. - PowerPoint PPT PresentationTRANSCRIPT
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The Rotary Snowplow
- A Canadian Invention !
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WHO?
• Dr. J.W. Elliott, a Toronto dentist, designed the first rotary snowplough.
• Orange Jull, another Canadian, improved Elliott’s design.
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WHEN?
• The first rotary snowplough was designed in 1869.
• The second model was produced between 1890 and 1892.
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WHERE?
• Canada
• The rotary was invented it in Toronto, Ontario.
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WHY?
• There have too much snow.
• In winter, people should to clean snow by their hands, they’re too tired.
• Many people died in cleaning up the snow.
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HOW?
• The first rail plough was invented by steel
• In 1869, a man called Elliot designed the first rotary snowplough
• Orange Jull improved Elliott’s design later, it contained several pivoting steel plates, it’s wheel in either direction at up to 400 rpm. It’s speed can up to 16 kmh
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THE QUESTION IN BOOK
How did you decide to use the information resources that you did?
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Why is it important to record the source of your information?
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How did the invention that you investigated affect or change motion?
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Is the invention still in use today?Explain your answer.
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Thank you!