By Russ Sherwin
In the latter half of the nineteenth century, one of the best power sources the small farmer had, or could readily obtain, was horses. If he didn’t have his own, he could borrow or rent some for a short period of time. A horse just requires a little water and some hay for fuel and he’s good to go. And it’s generally scalable: Need more power? Get more horses. Then, because of advances in crop processing machinery, a need developed for stationary rotary power. The problem is, how do you turn a walking horse into a rotating shaft?
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