The initial prototype consisted of the basic frame, threshing shafts, and drive train.
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The threshing mechanism consisted of finger-like cords attached to an annular ring, injection molded from polypropylene.
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One such plastic ring consists of three finger-like cords arranged symmetrically, with an array of rings fixed onto two parallel counter-rotating steel shafts that were 3.1 cm in diameter and 150 cm in length.
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The shafts were driven by a tractor power-takeoff shaft and assembled on a frame connected to a tractor’s three-point hitch