Green's Windmill
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Green's Windmill is a restored and working 19th century tower
windmill A windmill is a structure that converts wind power into rotational energy using vanes called sails or blades, specifically to mill grain (gristmills), but the term is also extended to windpumps, wind turbines, and other applications, in some ...
in
Sneinton Sneinton (pronounced "Snenton") is a suburb of Nottingham, England. The area is bounded by Nottingham city centre to the west, Bakersfield to the north, Colwick to the east, and the River Trent to the south. Sneinton lies within the unitary au ...
,
Nottingham Nottingham ( , locally ) is a city and unitary authority area in Nottinghamshire, East Midlands, England. It is located north-west of London, south-east of Sheffield and north-east of Birmingham. Nottingham has links to the legend of Robi ...
. Built in the early 1800s for the milling of
wheat Wheat is a grass widely cultivated for its seed, a cereal grain that is a worldwide staple food. The many species of wheat together make up the genus ''Triticum'' ; the most widely grown is common wheat (''T. aestivum''). The archaeologi ...
into flour, it remained in use until the 1860s. It was renovated in the 1980s and is now part of a science centre, which together have become a local
tourist attraction A tourist attraction is a place of interest that tourists visit, typically for its inherent or an exhibited natural or cultural value, historical significance, natural or built beauty, offering leisure and amusement. Types Places of natural ...
.


History

The current
tower mill A tower mill is a type of vertical windmill consisting of a brick or stone tower, on which sits a wooden 'cap' or roof, which can rotate to bring the sails into the wind.Medieval science, technology, and medicine: an encyclopedia (2005), 520 Thi ...
was built shortly after 1807 by baker George Green. It is located on the site of a previous
post mill The post mill is the earliest type of European windmill. Its defining feature is that the whole body of the mill that houses the machinery is mounted on a single vertical post, around which it can be turned to bring the sails into the wind. All p ...
and there were at least two other mills on Windmill Lane in Sneinton.Green's Mill, Its History and Working. Denny Plowman. Department of Leisure and Community Services, City of Nottingham. December 1993. In 1829 the elder Green died and his son, the mathematical physicist George Green, inherited the mill. Around this time, a visitor to the mill describes its operation:
"I ascertained some facts relative to the economy of a wind-mill. His sails have a radius of twelve yards and they revolve twenty five times a minute, or more than a mile at the extremities. This great velocity carries round the stones , which are sixteen feet in circumference, 162 times in a minute, and they grind a load of ten sacks of wheat in two or three hours. The sails are placed at an angle in the shaft, and then in union are placed exactly in the wind's point, but the quantity of cloth is varied inversely as the force of the wind. I went through this fine mill, and really felt terrified at the centrifugal force of such heavy masses as the stones, the peripheries of which were carried round with a determined velocity of forty miles an hour. Of course, none but particular kinds of stone will bear such a momentum, and the smallest fracture or inequality occasions them to separate with destructive consequences."
George Green operated the mill until his death in 1841; the Green family let the mill to Mr Fletcher and later to William Oakland. The tower mill remained in use until the 1860s, until it was eventually forced to close in the face of competition from the more modern steam powered
roller mill Roller mills are mills that use cylindrical rollers, either in opposing pairs or against flat plates, to crush or grind various materials, such as grain, ore, gravel, plastic, and others. Roller grain mills are an alternative to traditional ...
s. The sails were removed, the mill was abandoned, and it gradually fell into disrepair. The wooden roof rotted away, ultimately causing the
fantail Fantails are small insectivorous songbirds of the genus ''Rhipidura'' in the family Rhipiduridae, native to Australasia, Southeast Asia and the Indian subcontinent. Most of the species are about long, specialist aerial feeders, and named as " ...
to detach and crash through a nearby cottage. In 1919 the mill was bought by Oliver Hind, a local solicitor, who in 1923 fitted a copper cap at the top to again make the building watertight. The mill was converted into a factory, manufacturing
boot polish A boot is a type of footwear. Most boots mainly cover the foot and the ankle, while some also cover some part of the lower calf. Some boots extend up the leg, sometimes as far as the knee or even the hip. Most boots have a heel that is cle ...
. Now filled with flammable industrial volatile solvents, the mill eventually caught fire in 1947, again destroying the roof. Once again, the mill fell into disrepair. The mill was derelict and facing demolition, until it was acquired by
Nottingham City Council Nottingham City Council is the local authority for the unitary authority of Nottingham in Nottinghamshire, England. It consists of 55 councillors, representing a total of 20 wards, elected every four years. The council is led by David Mellen, of ...
in 1979. Funds were raised by the
University of Nottingham , mottoeng = A city is built on wisdom , established = 1798 – teacher training college1881 – University College Nottingham1948 – university status , type = Public , chancellor ...
and it was renovated by Thompson's, millwrights of Alford, Lincolnshire between 1984 and 1986. It is a It was reopened in December 1986 and is now part of a science centre which is open to the public. At the same time, No 3, Green's Gardens was restored from near dereliction by the Nottingham Buildings Preservations Trust as a residence for one of the Museum staff.


Operation

Green's Mill is entirely powered by the
wind Wind is the natural movement of air or other gases relative to a planet's surface. Winds occur on a range of scales, from thunderstorm flows lasting tens of minutes, to local breezes generated by heating of land surfaces and lasting a few ho ...
. The movement of the earth's atmosphere across the massive external sails causes them to rotate, which in turn spins the wooden drive shaft internal to the building. Various mechanisms (winches/millstones/shakers) inside the mill draw power from the drive shaft using
gear train A gear train is a mechanical system formed by mounting gears on a frame so the teeth of the gears engage. Gear teeth are designed to ensure the pitch circles of engaging gears roll on each other without slipping, providing a smooth transmission ...
s. File:Green's Windmill welcome 1283.JPG, 1) Sacks of wheat grain are hoisted to the top of the mill File:Green's Windmill grain cleaner 1244.JPG, 2) Wheat is fed into the grain cleaner File:Green's Windmill grain cleaner 1249.JPG, 3) The grain cleaner sorts the grain from the chaff File:GreensMill3.JPG, 4) Grain is fed into the millstones Green's Windmill stone floor 1216.JPG, 5) Between the millstones, grain is ground to a fine powder (meal) File:Green's Windmill meal floor 1213.JPG, 6) Meal is collected into sacks beneath the millstones GreensMill2.JPG, 7) Meal is passed through the dresser, which sorts into wholemeal and white flour File:The Nottingham Miller - geograph.org.uk - 336751.jpg, 8) Flour is bagged and sold to tourists


Popular culture

Green's windmill appeared in an episode of television crime drama
Boon Boon may refer to: Arts, entertainment, and media * Boon (game), a trick-taking card game * ''Boon'' (novel), a 1915 satirical work by H. G. Wells * ''Boon'' (TV series), a British television series starring Michael Elphick * The Ultimate Boo ...
titled ''The Eyes of Texas'' which was filmed in 1989.


References


External links


Green's Mill & Science CentreA Short Guide to Green’s Mill and How it all WorksSee Green's Mill on Google Street View
* Windmills in Nottinghamshire Tower mills in the United Kingdom Grinding mills in the United Kingdom Grade II listed buildings in Nottinghamshire Museums in Nottingham Science museums in England Mill museums in England {{Nottinghamshire-struct-stub