De Himriksmole, Tytsjerk
Himriksmole in 2008
|Mill location||Recreational area between Leeuwarden and Tytsjerk
|Year built||ca 1860, rebuild 1996|
|Roundhouse storeys||Single storey roundhouse|
|Number of sails||Four sails|
|Type of sails||Common sails|
|Winding||Tailpole and winch|
|Type of pump||Archimedes screw|
Himriksmole, also known as Groene Ster after the recreational area and nature reserve where it is located, is a drainage mill near the village of Tytsjerk, Friesland, Netherlands. It is a hollow post windmill of the type called "spinnenkop" by the Dutch. The mill is listed as a Rijksmonument, number 35675 and is used to raise the water level in the nature reserve.12
The mill was originally build for draining the Hemrikspolder near Huizum, for which parts of an 18th century mill from Wergea were used. It was replaced by an electric pumping station and moved to Rijperkerk in 1952 and to its current location in 1977 where it got a new function to supply water to the nature reserve.3 The mill was destroyed by arson in 1995 but rebuilt the following year.2
Himriksmole is wat the Dutch describe as a spinnenkop (English: spiderhead mill). It is a small hollow post mill winded by a winch. The four common sails have a span of 11 metres (36 ft 1 in) and are carried on a cast iron windshaft. The brake wheel on the windshaft drives the wallower at the top of the upright shaft in the body (called head on a spinnenkop), which passed through the main post into the substructure. At the bottom of the upright shaft, a pair of crown wheels drive the scoop wheel axle. The Scoop wheel itself is located outside the mill. It is the only drainage mill with a scoop wheel in Friesland, other Frisian drainage mills use an Archimedes' screw.2 The head and substructure are weatherboarded.
The mill is easily reached from the public footpath running past the mill.
- "Molenbestand: De Himriksmole/De Groene Ster te Tytsjerk (Tietjerk)" (in Dutch). De Hollandsche Molen. Retrieved 08-04-2012.
- "Tytsjerk (Tietjerk), Fryslân" (in Dutch). Nederlandse Molendatabase. Retrieved 08-04-2012.
- "Spinnekop Wielzicht komt in Groene Ster". Leeuwarder Courant. 01 april 1974.