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The common sail is the simplest form of sail. In medieval mills, the sailcloth was wound in and out of a ladder-type arrangement of sails. Medieval sails could be constructed with or without outer sailbars. Post-medieval mill sails have a lattice framework over which the sailcloth is spread. There are various "reefs" for the different spread of ...
The windmills at Kinderdijk in the village of Kinderdijk, Netherlands is a UNESCO World Heritage Site. A windmill is a structure that converts wind power into rotational energy using vanes called sails or blades, by tradition specifically to mill grain (), but in some parts of the English-speaking world, the term has also been extended to encompass windpumps, wind turbines, and other applications.
Charles Brush's windmill of 1888, used for generating electricity. Wind power has been used as long as humans have put sails into the wind. Wind-powered machines used to grind grain and pump water — the windmill and wind pump — were developed in what is now Iran, Afghanistan, and Pakistan by the 9th century.
The body of the windmill can be turned around the central post to bring the sails into the wind. All post mills have an arm projecting from them on the side opposite the sails and reaching down to near ground level. With some, as at Saxtead Green, the arm carries a fantail to turn the mill automatically. With the others the arm serves to rotate ...
No. of sails: Four sails: Type of sails: Common sails: Windshaft: cast iron and wood: Winding: Internal winding with medieval winding gears: No. of pairs of millstones: Two pairs: Size of millstones: 1,450 millimetres (4.76 ft) diameter: Other information: Uses a mound instead of stage to set the sails. Oldest existing windmill of the Netherlands.
Lowfield Heath Windmill is a post mill with a single storey roundhouse. Winding is by tailpole. It originally had four Common sails, and was last worked with four Patent sails carried on a cast iron Windshaft. The mill drives two pairs of millstones arranged Head and Tail. The Head Wheel is 9 feet (2.74 m) diameter with 111 cogs and the Tail ...
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Download QR code; Print/export Download as PDF; Printable version; In other projects Wikimedia Commons; ... Windmill fantail; Windmill sail; Windmills of Corvo;