Tjasker

The Fluttermühle or Flutter, derived from fries Fletta = move ( hook size Tjasker ), is the simplest and smallest construction of a windmill and serves the vertical water transport and dewatering.

The mill was invented in the 16th century in Holland, served there for reclamation and in Ostfriesland for drainage of wetlands and was up in the middle of the 20th century, supplanted by modern pumping stations, almost disappeared. Today there are in Northern Germany again a handful in museums and in use rewetting of biotopes. In North Holland are still 14 of these mills, eleven in Friesland.

In essence, the flutter of an Archimedean screw and a smaller wind wing cross ( 1.5 m - 7 m ) having board or sailing gate wings ( see there). This sits directly on top of the Archimedean screw; directly on corrugated head behind the wings supported a small buck at an angle of around 30 ° the entire device. The lower end of the Archimedean screw protrudes into the moat, to be lifted from the water and passed out. It is rotated by hand to the wind. Because they were small and light, these mills were simply put, when the water is pumped out of the trench or area in the drainage was no longer necessary.

Most commonly, these mills were in the lowlands in East Friesland and the Netherlands ( North Holland, Friesland).

Germany

In Germany Flutter stand today in Riepe, Bedekaspel, Weenermoor and Lütjegaste in East Friesland and in bog lake in the district of Weser march. The replica of a Fluttermühle is issued in the Village Museum Münkeboe.

Netherlands

In the Netherlands Tjasker are still widespread in the polder regions.

Nijeveen ( Drenthe)

Augustinusga (Friesland)

Bolsward (Friesland)

De Deelen (Friesland)

Elsloo (Friesland)

Feanwâlden (Friesland)

Nijs Beets (Friesland)

Nieuw Scheemda (Groningen )

Kalenberg ( Overijssel)

Bleskengraaf ( South Holland )