The windmill is an installation intended to produce mechanical energy starting from the Vent. Become obsolete with the generalization of the electricity, he is the ancestor of the wind . It was generally used to grind the Céréale S, to drain the Polder S or to produce Huile.
the traditional windmill consists of a surmounted tower of a directional roof in the direction of the wind, which supports the wings fixed at a horizontal axis; it is the mill-turn .
The wings, generally four, are generally made of a reinforcement out of wooden supporting a tended fabric. They can be symmetrical, or asymmetrical when the slats which support the fabric are fixed left side of the axis of the wing. The forms and the materials used are very variable from one area to another.
The transmission of the movement to the vertical axis of the grinding stones is done by gears made up of the “wheel”, wheel interdependent of the axis of the wings provided with teeth out of hard wooden, wings which gear on the “lantern” with spindles interdependent of the vertical axis.
The orientation of the mill was done by actuating the tiller, known as also the tail of the mill, using a capstan.
The mills, as their name indicates it, were initially used to grind the Céréale S and other grains. They were also used to pump water, either to drain the marshy zones and the Polder S, or to ensure the Irrigation. Were used they to produce Huile, for the Foulage of the Textile S, or to actuate Scierie S.
The windmill appeared in Orient, old Egypt and Iran (it is used in Perse for the Irrigation as of the year 600). The Iranian mills were not of the same type as the European mills. They consisted of a wind with vertical axis, - technique offering of better outputs that the wind mills to horizontal axis, confined inside the mill. Openings in the walls of the mill make it possible the air to be engulfed to actuate the wind mill.
Announced very early in Great Britain (Abbey of Croyland in 870), the windmill spread in Europe about the 12th century, initially on the maritime coasts of the countries of North: Great Britain, Netherlands, then in the countries of the Atlantic edge : Portugal, France, of the Baltic and North Sea: Belgium, Germany, Denmark, and in the islands, including in the Mediterranean. One finds them on eminences, either isolated, or grouped in series, like in places far away from the River. The first certificate of windmill in France, 1170, figure in a charter of the town of Arles.
The Netherlands are probably the country which counted the greatest number of windmills. Elements characteristic of the landscape, they are represented in particular in Flemish painting. The windmills of Kinderdijk were registered on the Liste of the world heritage of UNESCO.
The generalization of the electricity in the campaigns, and the appearance of the industrial Flour mill, involved a rapid decline of the windmills during the 20th century. They moreover were disadvantaged by the hardness of the trade of miller and by the layoffs often imposed by the absence of wind.
The appearance of the wind wheel with many blades, invented with the the United States, made them completely obsolete.
With Azannes, a mill built in 2003 according to the techniques of the 17th century at the place even where a mill into 1757 was built already which belonged to évêché of Verdun;
the island of Mykonos is known like “the Island of the windmills”, characteristics with their thatched roof and their wings triangular;
the mill De Gooyer;
The novel Don Quichotte of Cervantes puts in the high-speed motorboat windmills, that the main character, become insane, takes for giants.
The mills were also stations of monitoring with their coded messages. They were also used to announce a family event or a military conflict:
the wings stopped in Croix of saint André (in district) announced a happy event at the miller or the return to a state of calm in a military conflict;
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