Archimedean screw


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Related to Archimedean screw: Archimedean solids
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Archimedean screw

Archimedean screw

n.
An ancient apparatus for raising water, consisting of either a spiral tube around an inclined axis or an inclined tube containing a tight-fitting, broad-threaded screw. Also called Archimedes' screw.

[After Archimedes.]
References in classic literature ?
Monck Mason (whose voyage from Dover to Weilburg in the balloon, "Nassau," occasioned so much excitement in 1837,) conceived the idea of employing the principle of the Archimedean screw for the purpose of propulsion through the air - rightly attributing the failure of Mr.
The electricity is generated by two Archimedean screw turbines that rotate as flowing water from the Taff passes over them.
Utilising energy from the River Wear, an Archimedean screw drives a generator, which feeds the National Grid with power that is the equivalent of 75 percent of the energy requirements of Freeman's Reach.
The complex civil engineering project saw Rainton Construction undertake the technically challenging construction of a concrete channel in the River Wear, to house a 13 metre long, 20 tonne Archimedean Screw for hydro-power generation on the site - the first UK city centre development to do so.
Durham's Rainton Construction installed a concrete channel to take a 13-metre long, 20 tonne Archimedean Screw, which is turning the city into the first in the UK with a hydro generation system on site to provide electricity.
The machines, including items such as giant ballbearings, and a cochlea or archimedean screw for lifting water to cities or draining swamps, are grouped into four sections based upon their application to the elements of nature (air, water, land and fire), which deeply fascinated Leonardo da Vinci.
The trust will start work to install an Archimedean screw hydroelectric turbine at the southern end of Tumbleton lake in the spring.
The hydroelectric systems, which will be placed in waters that are less than 3 metres deep, are likely to be based on technology that uses the Archimedean screw principle which was historically used to transfer water from a low-lying body of water into irrigation ditches.
9] showed, mixing in a conventional Archimedean screw primarily occurs during the melting phase and improves little thereafter.
This month in Design History: Invention of the Archimedean screw, approx.
To him were attributed the Archimedean screw (a machine for raising Water) and various pulleys and levers--in fact, he once said, with reference to his levers, "Give me a place to stand on, and I will move the earth.