The first shaft-drive PTO used in farm equipment that was indeed for sale to the public was demonstrated in France in 1878. This was a steam-powered live PTO. The IH thing is about mass production and tractors with serial numbers.
In the USA, George Berry invented and sold a combine with a live steam-powered PTO, in 1883.
As to Cockshut and their live PTO tractor in 1945? I'm not sure where that came from, but . . . two guys in Ohio invented the dual-clutch, live PTO for farm tractors in 1940. They described their dual-clutch setup as "independent" and "continuous." At that time, they sold the rights to Huber Mfg. What Huber did with it, I do not know.
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Today's Featured Article - Earthmaster Project Progress Just a little update on my Earthmaster......it's back from the dead! I pulled the head, and soaked the stuck valves with mystery oil overnight, re-installed the head, and bingo, the compression returned. But alas, my carb foiled me again, it would fire a second then flood out. After numerous dead ends for a replacement carb, I went to work fixing mine.I soldered new floats on the float arm, they came from an old motorcycle carb, replaced the packing on the throttle shaft with o-rings, cut new ga
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