Just a guess,but I would think that if Harry had a patent on it,it would have had to have expired. I believe Vermeer had a patent on the large round baler for a time. At least that's what I was told was the reason that New Holland used chains instead of belts for so many years. The other companies paid Vermeer a royalty on the patent,but New Holland refused. Now the patent has expired and they've come around to using belts. No idea if that's true of not,but it's what I was told back in the late 70s,early 80s when the big round balers were gaining popularity.
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Today's Featured Article - The Nuts and Bolts of Fasteners - Part 2 - by Curtis Von Fange. In our previous article we discussed capscrews, bolts, and nuts along with their relative hardness and thread sizes. In this segment we will finish up on our fasteners and then work with ways to keep them from loosening up in the field. Capscrews, bolts and nuts are not the only means of holding two parts together. When dealing with thinner metals like sheet tin, a long bolt and
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