Windup technology

surendra kumar konduru wrote:hi can we us a pair of bulls to wind a spring.

I think you could, but depending on what a person is trying to accomplish for work, there may be better ways to do it. If you have a yolk of oxen, I might suggest doing a search on youtube under Amazing Homemade Inventions. The Amish do a lot of creative things to convert animal draft power to pump water, split wood, etc.

Could you tell us exactly that you want to accomplish. I have always said that "no one person on Permies is smarter than all of us put together". It may be outside the realm of wind up technology, but if it gets the job done with what you have, that is the goal.

i have come across a working tecnology which produces 10kva by bulls pulling a yoke which is connected to a generator and gears. i was thinking weather the same can work with a spring also so that there cane be rest for the animals.

Oh that would not be hard to do at all.

The "wind up" would just have to be a tripod holding a pulley and weight, the oxen lifting the weight to the top of the wooden tripod. Then as the weight falls, it pulls upon a train of gears or rope pulleys that powers the generator.

Okay, so I doodled up a drawing on how it would be done using excel.

The green parts are just the tower/tripod. The taller the longer the "windup".

The green is the train of pulleys. The lower one movable, and the upper one fixed to the tower. As the weigh drops, the pulleys spins

The upper pulley, being fixed, is connected by belting to the generator pulley. That is represented by black

The red is a seperate rope that the oxen pulls to raise the weight.

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This is all simple in concept, but sizing the pulleys and the amount of weight will take calculations/ and or trial and error.

The taller the tower, the longer the fall, and thus the longer the wait time in relifting the weight.

This system would work well for powering a battery bank as it is intermitten power, but if two tower systems were set up, and the drop taken enough time, a set of oxen could alternate lifting the weights on each tower,yet have enough time to rest between lifts.