A crop engaging rotor for conveying and/or conditioning or otherwise treating crop comprises support members 12 and a plurality of outwardly extending crop engaging elements 11. Each crop engaging element 11 is made of stiff resilient synthetic plastics material and forms two outwardly extending arms...http://www.google.de/patents/US4660362?utm_source=gb-gplus-sharePatent US4660362 - Crop engaging device
