De Boezemvriend, De Groeve

De Boezemvriend
Origin
Mill name	De Boezemvriend Molen van De Groeve
Mill location	Hunzeweg 4, 9473 TE, De Groeve 52°06′23″N 6°42′16″E / 52.10639°N 6.70444°E / 52.10639; 6.70444
Operator(s)	Gemeente Tynaarlo
Year built	1871
Information
Purpose	Drainage mill
Type	Smock mill
Storeys	Three storey smock
Base storeys	Single storey smock
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
Other information	Formerly fitted with Patent sails. The only drainage windmill remaining in Drenthe (tjaskers excluded).

De Boezemvriend or Molen van De Groeve is a smock mill in De Groeve, in Drenthe province of the Netherlands which has been restored to working order. It was built in 1871. The mill is listed as a Rijksmonument, number 41097.^[1]

History

De Boezemvriend was built in 1871 by millwright P Medendorp, of Zuidlaren,^[1] replacing an earlier mill. It drained the Zuidlaren Polder. The mill worked until 1934, when an electric motor was installed. The mill was derelict in 1960. The windshaft had dropped and the end of a sail resting on the ground.^[2] The mill was restored as a landmark over the winter of 1962-63 by millwright Medendorp of Zuidlaren, grandson of the original builder. It had formerly been equipped with Patent sails, but these were not restored. Further restoration to working order took place over the winter of 1989-90. The mill was officially reopened on 5 April 1990. The mill was named De Boezemvriend in 1991.^[2]

Description

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

De Boezemvriend is what the Dutch described as an achtkante grondzeiler - a smock mill without a stage. It has a single storey brick base with a three storey smock. The smock and cap are boarded, with vertical boards on the smock. The four Common sails are carried on a cast iron windshaft which was made in 1894 by the Den Haag millwrights Prins van Oranje. The sails have a span of 20.10 metres (65 ft 11 in). The brakewheel has 59 cogs. It drives the wallower (27 cogs) at the top of the upright shaft. At the bottom of the upright shaft the crown wheel (36 cogs) drives the Archimedes screw via a gear with 35 cogs.^[3]

Public access

De Boezemvriend is open by appointment.^[4]

References

1. ^ ^{a b} "De Groeve, Drenthe" (in Dutch). Molendatabase. http://www.molendatabase.nl/nederland/molen.php?nummer=6. Retrieved 14 August 2009. 
2. ^ ^{a b} "Geschiedenis" (in Dutch). De Hollandsche Molen. http://www.molens.nl/dbase/molen.php?&molenid=321. Retrieved 14 August 2009.  (Click on "Geschiedenis" to view)
3. ^ "Technische gegevens" (in Dutch). De Hollandsche Molen. http://www.molens.nl/dbase/molen.php?&molenid=321. Retrieved 14 August 2009.  (Click on "Technische gegevens" to view)
4. ^ "Informatie" (in Dutch). De Hollandsche Molen. http://www.molens.nl/dbase/molen.php?&molenid=321. Retrieved 14 August 2009.  (Click on "Informatie" to view)

Dutch Rijksmonument 41097