page_title: Wijnsermolen, Wyns
section_title: Description
hierarchical_section_title: Wijnsermolen, Wyns / Description
caption_attribution_description: English: Dekker bearing of the Archimedes screw axle of the Wijnsermolen (drainage mill), seen during the renovation in 2010
context_page_description: Wijnsermolen is a smock mill in Wyns, Friesland, Netherlands which is currently being restored to working order. The mill is listed as a Rijksmonument, number 35691.
context_section_description: The Wijnsermolen is what the Dutch describe as an "achtkante grondzeiler". It is a smock mill without a stage, the sails reaching almost to the ground. The brick base is one storey high with a three-storey smock on top. Both smock and cap are thatched. The mill is winded by tailpole and winch. The four common sails with Fok system have a span of 19.50 metres (64 ft 0 in) and are carried on a cast-iron windshaft cast by foundry De Prins van Oranje in 1889 as number 1360. The front bearing is of cast iron with bronze liner instead of the stone bearings that are more commonly found in the Netherlands. The windshaft carries the brake wheel, which has 55 cogs. This drives the wallower (28 cogs) at the top of the upright shaft. At the lower end of the upright shaft the crown wheel (42 cogs) drives the steel Archimedes' screw via a gear wheel with 39 cogs. The upper bearing of the screw axle is a rare Dekker bearing, consisting of two rollers that support the axle. The Archimedes' screw diameter is 1.05 metres (3 ft 5 in) diameter. It is inclined at 16½°. Each revolution of the Archimedes' screw can lift 956 litres (210 imp gal) of water.
caption: Dekker bearing revealed during the restoration
exif: {"Image Make": "Panasonic", "Image Model": "DMC-LS2", "Image Orientation": "Horizontal (normal)", "Image XResolution": "72", "Image YResolution": "72", "Image ResolutionUnit": "Pixels/Inch", "Image Software": "Ver.1.0", "Image DateTime": "2010:02:12 11:40:53", "Image YCbCrPositioning": "Co-sited", "Image ExifOffset": "418", "Image PrintIM": "[80, 114, 105, 110, 116, 73, 77, 0, 48, 50, 53, 48, 0, 0, 14, 0, 1, 0, 22, 0, ... ]", "Thumbnail Compression": "JPEG (old-style)", "Thumbnail Orientation": "Horizontal (normal)", "Thumbnail XResolution": "72", "Thumbnail YResolution": "72", "Thumbnail ResolutionUnit": "Pixels/Inch", "Thumbnail JPEGInterchangeFormat": "7060", "Thumbnail JPEGInterchangeFormatLength": "8550", "Thumbnail YCbCrPositioning": "Co-sited", "EXIF ExposureTime": "1/30", "EXIF FNumber": "14/5", "EXIF ExposureProgram": "Program Normal", "EXIF ISOSpeedRatings": "320", "EXIF ExifVersion": "0220", "EXIF DateTimeOriginal": "2010:02:12 11:40:53", "EXIF DateTimeDigitized": "2010:02:12 11:40:53", "EXIF ComponentsConfiguration": "YCbCr", "EXIF CompressedBitsPerPixel": "4", "EXIF ExposureBiasValue": "0", "EXIF MaxApertureValue": "3", "EXIF MeteringMode": "Pattern", "EXIF LightSource": "Flash", "EXIF Flash": "Flash fired, auto mode, red-eye reduction mode", "EXIF FocalLength": "29/5", "EXIF FlashPixVersion": "0100", "EXIF ColorSpace": "sRGB", "EXIF ExifImageWidth": "2560", "EXIF ExifImageLength": "1920", "Interoperability InteroperabilityIndex": "R98", "Interoperability InteroperabilityVersion": "[48, 49, 48, 48]", "EXIF InteroperabilityOffset": "6908", "EXIF SensingMethod": "One-chip color area", "EXIF FileSource": "Digital Camera", "EXIF SceneType": "Directly Photographed", "EXIF CustomRendered": "Normal", "EXIF ExposureMode": "Auto Exposure", "EXIF WhiteBalance": "Auto", "EXIF DigitalZoomRatio": "0", "EXIF FocalLengthIn35mmFilm": "35", "EXIF SceneCaptureType": "Standard", "EXIF GainControl": "High gain up", "EXIF Contrast": "Normal", "EXIF Saturation": "Normal", "EXIF Sharpness": "Normal"}