De Nijlânnermolen is a smock mill in

Workum Workum () is a city located in the municipality of Súdwest-Fryslân in Friesland, Netherlands. It received city rights in 1399 and is one of the eleven cities of Friesland. It had a population of 4,435 in January 2017.Friesland Friesland (, ; official fry, Fryslân ), historically and traditionally known as Frisia, is a province of the Netherlands located in the country's northern part. It is situated west of Groningen, northwest of Drenthe and Overijssel, north of ...

Netherlands ) , anthem = ( en, "William of Nassau") , image_map = , map_caption = , subdivision_type = Sovereign state , subdivision_name = Kingdom of the Netherlands , established_title = Before independence , established_date = Spanish Netherl ...

. It has been restored to working order and is designated as a reserve mill. It is listed as a Rijksmonument.

History

''De Nijlânnermolen'' was built in 1785. The first mill on this site was built in 1770. It had a sail span of 60 Dutch feet (). The mill drove a scoopwheel. It soon became apparent that this mill was too small due to insufficient pumping capacity. Following a major inundation in 1776, a new mill was built by millwright Widmer Sipkes in 1784-85. The mill had originally been built in 1770 and was moved here, being erected on the base of the existing mill. It had a sail span of 76 Dutch feet (). ''De Nijlânnermolen'' was worked by wind until 1950, when a

diesel engine The diesel engine, named after Rudolf Diesel, is an internal combustion engine in which ignition of the fuel is caused by the elevated temperature of the air in the cylinder due to mechanical compression; thus, the diesel engine is a so-ca ...

was placed in ''De Nijlânnermolen'' and a new, larger,

Archimedes' screw The Archimedes screw, also known as the Archimedean screw, hydrodynamic screw, water screw or Egyptian screw, is one of the earliest hydraulic machines. Using Archimedes screws as water pumps (Archimedes screw pump (ASP) or screw pump) dates back ...

was installed. The mill was sold to the Waterschap Tusken Mar en Klif. In 1987, the mill was sold to the Workumer Molenstichting for ƒ1. The mill was restored in 1987-88 by Bouw '75 of Workum, at a cost of ƒ182,000. The restored mill was set to work again on 8 October 1988. A replacement Archimedes' screw was fitted in 2006. The mill is now owned by the Molenstichting Sûdwest Fryslân. Designated as being held i reserve, it is listed as a Rijksmonument, №39452.

Description

''De Nijlânnermolen'' is what the Dutch describe as a ''Grondzeiler''. It is a two 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

thatch Thatching is the craft of building a roof with dry vegetation such as straw, water reed, sedge (''Cladium mariscus''), rushes, heather, or palm branches, layering the vegetation so as to shed water away from the inner roof. Since the bulk of ...

ed. The sails are Common sails. They have a span of . The sails are carried on a

cast iron Cast iron is a class of iron– carbon alloys with a carbon content more than 2%. Its usefulness derives from its relatively low melting temperature. The alloy constituents affect its color when fractured: white cast iron has carbide impur ...

''windshaft'', which was cast by Gietijzerij L I Enthoven en Co.,

The Hague The Hague ( ; nl, Den Haag or ) is a city and municipality of the Netherlands, situated on the west coast facing the North Sea. The Hague is the country's administrative centre and its seat of government, and while the official capital o ...

, South Holland. The ''windshaft'' carries the ''brake wheel'' which has 65 cogs. This drives the ''wallower'' (32 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 37 cogs drives an

via a ''crown wheel''. The lower ''crown wheel'', which has 36 cogs is carried on the axle of an Archimedes' screw, which is used to drain the polder. The Archimedes screw fitted to the mill in 2006 has a diameter of . This data applies to the Archimedes' screw fitted to the mill between 1950 and 2006:- The axle of the screw was diameter and long. The screw was diameter. It was inclined at 19°. Each revolution of the screw lifted of water.

Public access

''De Nijlânnermolen'' is open on Saturdays from 09:00 to 12:00, or by appointment.

References

{{DEFAULTSORT:De Nijlannermolen, Workum Windmills in Friesland Windmills completed in 1785 Smock mills in the Netherlands Windpumps in the Netherlands Agricultural buildings in the Netherlands Rijksmonuments in Friesland Octagonal buildings in the Netherlands