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NiNe O 11-26-2012 05:20 AM

Windmill brake.
I am building a windmill to aerate my pond. I have a blade from a thousand ton cooling tower, I took a air pump from an old school building and will link them together with a set of pulleys and a belt. My problem is when we get gusts of wind in 50's I don't to have to find pieces of my windmill in the neighbors yard. So I need a brake on it to prevent from spinning out of control. I have looked around and haven't really come up with anything.

oh'mike 11-26-2012 06:52 AM

I know nothing about this other than the name of the part you need--centrifugal brake - Google Search

Good luck----

shazapple 11-26-2012 08:00 AM

You could try a Furling system (I had to look up the name, so don't take me as an expert). The turbine is essentially mounted on a hinge with a spring and when the wind blows too hard the turbine rotates out of the wind and slows down.

curtd 05-04-2014 06:04 PM

What a cool project. Some pics after you build it maybe ?:) Oh'Mike's idea reminded me of my mini bike. May be you can use a clutch. It works on centrifigual force

joecaption 05-04-2014 06:29 PM

Check out the Mother Earth News website.
There all about being off the grid.

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