2. Definition
• It is a machine historically used for transferring
water from a low-ling body of water into irrigation
ditches.
• Water is pumped by turning a screw-shape surface
insole a pipe
• Also it is a devide of a tube bent specially around
an axis or of a board threaded screw cased by a
cylinder and used to raise water
3. History
• The screw was used predominately for
transferring water to irrigation systems and for
draining water out or mines or other areas of
low-ling
• The invention of the water screw is credited to
the Greek polymath Archimedes of Syracuse in
the third century BC
• Archimedes Screw has over 2000 years old
4. Structure
The archimedes screw consist of a screw (a helical surface
surroundinga central cylindrical shaf) inside a hollow pipe. The screw is
turned usually by windmill or by manuallabour
• As the shaft turns, the bottom end scoops up a volume of water.
This water is then pushed up the tube by the roating helicoid until
finally it pours out from the top of the tube. It is made, first by
wood and then,by metal
• The slides inside the tube are roating spiral shaft, eventually expel
toward the top of the tube
5. Where can we find it?
• We can find it in a screw, drill,
auger, and system for give shape
to the materials
