Apparatus and method for testing unvulcanized rubber or rubber-like materials can work at high shear rates (e.g. 100 sec.sup.-1) as a result of applying and maintaining pressure on the test sample as it is being sheared by a rotor in a test chamber. The rotor is smooth-faced. Both conditions simulate...http://www.google.fr/patents/US4275600?utm_source=gb-gplus-shareBrevet US4275600 - Testing rubber
