Historic Dutch Flouwer Mill 'Kijkduin'
Вставка
- Опубліковано 3 бер 2022
- Curious about how a historic flour mill works?
Korenmolen Kijkduin is an original Dutch flour mill that was crucial in the past for the food supply of the region. Farmers delivered their products to the mill, which processed them into flour. As early as 1573, mention was made of a mill on this site. That was a wooden so-called Standerdmolen. The current stone version dates from 1772 and is run by a group of volunteer millers.
In the video you can see the beautiful wooden construction in action and discover what it takes to grind the grains into flour.
The mill is open to the public almost every Saturday and you can buy the products in the authentic atmospheric shop. Consult the website: www.molen-kijkduin.nl
Enjoy this fascinating historical spectacle.
Music:
Timeless - Lauren Duski
Accordion Waltz - by Kirill Luzin
Audiojungle
Nitpicky Picnic - The Whole Other
I'm Happy For This Guitar - Freedom Trail Studio
St. Anne's Reel - Nat Keefe & Hot Buttered Rum
Plantation by Audionautix is licensed under a Creative Commons Attribution 4.0-licentie. creativecommons.org/licenses/...
Artist: audionautix.com/
Considering its age, circa 1700, this is a remarkable piece of engineering as its design is deeper than one thinks, and many of its principles are still used in modern times as in the case of:-
*At 2:40 these blades are remarkable in design as while the blade has the same pitch along the radius, this needs a different distributed twist along the blade, with the highest twist near the center and the lower twist at the tips. All this saves the air from stalling at some locations along the blade. Reefing the blades is related to the manner in which modern sails are reefed by rotating the sails along with the leading stay or luff. The leach and the luff are used to tighten the sail. Also the blade is well balanced where the spar is not placed at the leading edge but retracted back so that the blade does not gyrate along the radius axis. In ships, they use balanced rudders to stop torquing the rudder shaft.
*At 2:50 the structure that rotates the head of the windmill into the wind is interesting in how it is made to reach the ground while being slanted back to clear the wide base of the windmill. The logic used to change the direction of the windmill into the wind is ingenious and I pity the miller who needs to put up the sail and turn it into the wind, ensuring that the brake is applied.
* At 4:16 I love the manner that the slanted feeder is vibrated ensuring the wheat drops into the delu before it is fed into the grinding
surface, a principle still used in many industries.
* At 4:24 that adjacent curved radial sculpted surface slots in the grinding couple are a brilliant mathematical curve to ensure a constant rate of change of the position of the wheat suffering the grinding action multiple times til it is exists
*At 5:11 there is a crash gearbox to lift the wheat which used the gearbox principles I had in my car 80 years ago! where there was no synchromesh and we had to use a double-declutching action, I could not help smiling when I saw that, Brilliant.
*At 5:18 the safety non-return valve for the heavy sack is ingenious with gravity closing the non-return valve after the sack goe s through where the miller can handle it safely.
*At 5:27, that loading system where the miller does not handle the weight on that wheeled trolley does help as the miller has to climb up and down those stairs/ ladders a number of times. remarkable thinking in those days. Similar principles were used on Brunelleschi’s dome which is the largest masonry dome ever built and it is the coverage of the Cathedral of Florence, Italy. circa 1500.
* At 6:44 the manner in which that gentleman lifts that heavy marble/lava grinding wheel is ingenious.
* The heavy thrust roller bearing that permits the head of the windmill to rotate to face the wind is a remarkable piece of engineering for that time, and the geometry must be well centralized to keep the vertical shafts in the center.
* At 5:12 those single teeth though not a perfect shape for engagement as in modern gear wheels do pretty well for the punishment they take and the individual mounting and adjustment is something that you do not see in modern days. This miller windmill is superb but the other pumping windmills are also to be admired.
At my old age, it is not possible to go and see all this craftsmanship still in good working order, but if I was any younger I would not mind asking for accommodation in that Miller Windmill for a month or two. It would take me back to my younger days when I used to work with him making traditional wooden boats in my home country. Those who can appreciate all t his static and dynamic logic working together should go to see all this wonder..........which helped families throughout the world have their ground wheat to produce flour for their bread and their pizza!
Well done and congratulations.
Hi Carmel Pule. Thank you for your interesting comment. I forwarded your message to miller Fred Prins.
Hi, a miller myself here! 👋
2:40 the leading windboards are in fact an improvement over the older type of sail, which had the same amount of sailcloth on both sides of the spar. This invention dates back to around 1500. The first improvement in efficiency was in 1926 with the Dekker system. That shows how good this early system already was!
4:16 the feeder shoe is slightly tilted, but rather counterintuitively it's usually tilted away from the millstone. This means that the only thing that makes the grain roll into the stones is the shaking, and not gravity itself.
4:24. there is a surprisingly large amount of information on millstones. The patterns and materials used can differ between millstones, depending on their intended function. For example, millstones intended to break grain for animal feed usually have deeper grooves and more of them, with a fairly coarse structure to cut up the grain. Meanwhile, millstones intended to grind wheat to make the fine white flour will have fewer grooves and are very smooth. This really limits capacity, but it gives better results.
4:55 this quality assessment is really unusual, it's normally done by just feeling it. If it doesn't feel right, it isn't right.
5:12 the teeth are rounded to make them engage easier. Making these teeth is relatively easy, but making a normal one can take hours of shaving it into a perfect fit!
5:27 again, something unusual that I haven't seen before. This seems to be a peculiarity of the Kijkduin windmill. Normally, the dressers (flour sieves) are situated on the same floor or below the meal spouts, so the flour can keep moving generally downward. I highly doubt this way of working would have been used when the mill was still in use, but it seems to work!
6:08 the millstones shown here are artificially made out of quartz and emery (en.wikipedia.org/wiki/Emery_(rock)) bound together with magnesite. This make up of small stones with a soft binding material makes them very suitable for multiple purposes, as different grains interact differently with the stone and adapt it. Soft grains like rye and barley won't wear away the binding material making the stone itself wear, producing a smooth surface. Harder grains like maize will chip away at the binding material exposing the sharp edges of the stone, making the stone cut more.
6:22 bad translation: it's called dressing a stone and it's done with a mill bill.
6:44 that's a natural stone, made of basalt lava from the German Eiffel region. As it's porous, it has a natural ability to cut, meaning the grooves need a different shape.
7:09 changing the profile of a stone is rarely done, usually when the stone is to be used for a different purpose. So nowadays, it's almost never done.
Hopefully you like the added information!
Fascinating!! I'm a new subscriber! Thank you so much!!
Thanks Carmen!
Little typo: this is actually a flour mill
Thank you so much!
still not changed in the title. graag titel aanpassen. flouwer is a nonexistent word as halway between flower and flour: in Dutch both are translated to bloem.
Grate peoples..
This was amazing! My kids and I had fun learning all about this mill and now we want to visit it!
Thank you! Nice to hear. The millers welcome you. Until then! Please check the website before you visit the mill: www.molen-kijkduin.nl
Really great, wonderful flourmill and very useful comments, thanks for sharing excellent video 👌👌👌
Thank you!
Zo die dame kan echt geen fatsoenlijk Engels 😂