Archimedes' screw

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Related to Archimedes screw: Archimedes spiral

Archimedes' screw,

a simple mechanical device believed to have been invented by Archimedes in the 3d cent. B.C. It consists of a cylinder inside of which a continuous screw, extending the length of the cylinder, forms a spiral chamber. By placing the lower end in water and revolving the screw, water is raised to the top. The principle is applied in machines used for drainage and irrigation, and also in some types of high-speed tools. It can also be applied for handling light, loose materials such as grain, sand, and ashes.
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Archimedes' screw

[¦är·kə¦mēd‚ēz ′skrü]
(mechanical engineering)
A device for raising water by means of a rotating broad-threaded screw or spirally bent tube within an inclined hollow cylinder.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Make your own mini Archimedes screw or visit the Young Engineers' Zone every day of the holidays.
It was North East actor, Robson Green who officially switched on the Archimedes screw at the property in Rothbury - relighting the house, just as Lord Armstrong did back in 1878, with water.
Beginning with early breakthroughs in mechanical technology, such as the Archimedes screw pump, the Noria Al-Muhammadiyya waterwheel, and the Newcomen engine, Black organized the selected landmarks into several chapters addressing specific themes, from energy and manufacturing to information, science, and medicine.
The sort of Archimedes Screw in the prop hub worked beautifully in a drum on test at the farm, but went on a fortnight-long strike and sulk in Zambezi water.
The debulked material then continuously is captured and removed by an internal Archimedes screw running the length of the catheter.
There are multiple attractions for those visiting the gallery, including Archimedes Screw Left, Gyroscope, Wind Generator and Solar System, but what caught the attention of the younger crowd was the anti-gravity mirror which gives a flying image of a man.
Yet he seems sorely disappointed when you express no interest in purchasing a cigarette lighter in the shape of an Archimedes screw. However, you might prefer the attractive young lady in a supermarket who almost pokes your eye out with a toothpick impaled in a cube of something-or-other on a doily on a tray.
t e The handy advice will be combined with two tours (11.30am and 1.30pm) at Morden Hall Park in South London, which will also take in the newly-installed Archimedes screw turbine.
Archimedes also used logical thinking to invent the Archimedes screw when he saw the snails on the beach.
Once the flow rates had been established, two technologies were chosen for particular suppliers to provide proposals; the first technology was the Kaplan Turbine to be supplied by Spaan-Babcock; but after discussions with the Environment Agency it was decided that the low environmental impact of the Archimedes Screw was the technology of choice.