Ybema's Molen, Workum

Ybema's molen, Workum

Ybema's molen, August 2007.
Origin
Mill name Ybema's molen
Mill location Aan de Yskeboerevaart, Workum
52°59′12″N 5°26′38″E / 52.98667°N 5.44389°E / 52.98667; 5.44389
Operator(s) Molenstichting Nijefurd
Year built 1899
Information
Purpose Drainage mill
Type Smock mill
Storeys One storey smock
Base storeys One storey base
Smock sides Eight sides
Number of sails Four sails
Type of sails Common sails
Windshaft Cast iron
Winding Tailpole and winch
Type of pump Archimedes' screw

Ybema's molen is a smock mill in Workum, Friesland, Netherlands. It has been restored to working order. Designated as being held in reserve, it is listed as a Rijksmonument.

History

Ybema's molen was built in 1899. It worked by wind until 1951 but was derelict by 1955 when it was restored by carpenter F de Groot of Ferwoude, Friesland at a cost of ƒ4,130.38. In August 1963, the mill was bought by the Gemeente Nijefurd for ƒ1. Further restorations were carried out in 1969 and 1981.[1] In 1986, the mill was sold to the Molenstichting Nijefurd.[2] By 1995, the Archimedes' screw had been removed.[1]

In 2006, the mill was fully restored. A new cast iron windshaft was fitted, replacing the previous wooden one. A new Archimedes screw was fitted and the mill made workable again. The mill was designated by Wetterskip Fryslân as being held in reserve. A sail broke on 27 November 2011. A replacement pair of sails was fitted in November 2012. The mill is listed as a Rijksmonument, №39517.[2]

Description

For an explanation of the various items of machinery, see Mill machinery.

Ybema's molen is what the Dutch describe as a Grondzeiler. It is a single 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 boarded. The sails are Common sails. They have a span of 10.20 metres (33 ft 6 in). The sails are carried on a cast iron windshaft. The windshaft carries the brake wheel which has 31 cogs. This drives the wallower (16 cogs) at the top of the upright shaft.[1] At the bottom of the upright shaft there are two crown wheels. The upper crown wheel, which has 32 cogs drives an Archimedes' screw via a crown wheel. The lower crown wheel, which has 31 cogs is carried on the axle of the Archimedes' screw. The screw is 90 centimetres (2 ft 11 in) diameter..[2]

Public access

Ybema's molen is open by appointment.[2]

References

Wikimedia Commons has media related to Ybema's molen.
Dutch Rijksmonument 39517
  1. 1 2 3 Stichting De Fryske Mole (1995). Friese Molens (in Dutch). Leeuwarden: Friese Pers Boekerij bv. p. 225. ISBN 90 330 1522 6.
  2. 1 2 3 4 "Workum, Fryslân" (in Dutch). Molendatabase. Retrieved 4 October 2014.
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