Langwert is a smock mill in

Winsum, Friesland Winsum () is a village in Waadhoeke municipality in the province of Friesland, the Netherlands. It had a population of around 1,038 in January 2017. History The village was first mentioned in the 13th century as Winshyum, and means "settlement of ...

Netherlands , Terminology of the Low Countries, informally Holland, is a country in Northwestern Europe, with Caribbean Netherlands, overseas territories in the Caribbean. It is the largest of the four constituent countries of the Kingdom of the Nether ...

which was built in 1979 and is under restoration. It is listed as a

Rijksmonument A (, ) is a national heritage site of the Netherlands, listed by the agency Rijksdienst voor het Cultureel Erfgoed (RCE) acting for the Dutch Ministry of Education, Culture and Science. At the end of February 2015, the Netherlands had 61,822 l ...

History

''Langwert'' formerly stood on different site in Winsum, where it was known as the ''Molen van Tjilbert''. It had been built in 1894 by

millwright A millwright is a craftsman or skilled tradesman who installs, dismantles, maintains, repairs, reassembles, and moves machinery in factories, power plants, and construction sites. The term ''millwright'' (also known as ''industrial mechanic'') ...

Folkert Wijnstra of Spannum, Friesland to drain an area of . The mill was moved to its current site in 1979, replacing a mill that had been built in 1863 and that had burnt down on 13 March 1974. The work was done by a carpenter from Winsum with assistance from millwright Westra of

Franeker Franeker (; ) is one of the eleven historical City rights in the Low Countries, cities of Friesland and capital of the municipality of Waadhoeke. It is located north of the Van Harinxmakanaal and about west of Leeuwarden. As of 2023, it had 13,0 ...

, Friesland. The mill was damaged in a storm in September 2011. Restoration by Kolthof Bouwbedrijf bv of

Stiens Stiens is a town in the municipality of Leeuwarden, Netherlands. As of January 2017, the town had a population of about 7,545. Between 1944 and 2018, it was the capital of the municipality of Leeuwarderadeel. History The village was first mention ...

, Friesland began in the summer of 2014. It is listed as a Rijksmonument, №8529.

Description

''Langwert'' is what the Dutch describe as a ''Grondzeiler''. It is a one-storey smock mill on a single storey base. There is no stage, the sails reaching almost to ground level. The mill is winded by tailpole and winch. The smock and cap are clad in vertical boards. The sails are

Common sails Windmills are powered by their sails. Sails are found in different forms, from primitive common sails to the advanced patent sails. Jib sails The jib sail is found in Mediterranean countries and consists of a simple triangle of cloth wound r ...

. They have a span of . The sails are carried on a wooden ''windshaft''. The ''windshaft'' carries the ''brake wheel'' which has 35 cogs. This drives the ''wallower'' (18 cogs) at the top of the ''upright shaft''. At the bottom of the ''upright shaft'' there are two ''crown wheels'' The upper ''crown wheel'', which has 30 cogs drives an

Archimedes' screw The Archimedes' screw, also known as the Archimedean screw, hydrodynamic screw, water screw or Egyptian screw, is one of the earliest documented hydraulic machines. It was so-named after the Greek mathematician Archimedes who first described it ...

via a ''crown wheel''. The lower ''crown wheel'', which has 31 cogs is carried on the axle of an Archimedes' screw, which is used to drain the polder. The axle of the screw is diameter and long. The screw is diameter. It is inclined at 21°. Each revolution of the screw lifts of water.

Public access

''De Beintemapoldermolen'' is usually open on Sunday afternoons, or by appointment.

References

{{Dutch Windmills Windmills in Friesland Windmills completed in 1979 Smock mills in the Netherlands Windpumps in the Netherlands Agricultural buildings in the Netherlands Rijksmonuments in Friesland Octagonal buildings in the Netherlands Waadhoeke