Abstract: The invention comprises a device which performs the functions of both a Mooney Viscometer and an Oscillating Disk Rheometer to measure the visco-elastic properties of rubber and rubber-like materials. Rotational and oscillating motion are transmitted to a shaft by means of a sprocket and a hub connected to an eccentric. Rubber samples having a wide range of stiffnesses can be accommodated by a provision for changing the thickness of the sample.

Abstract: An oscillating rheometer die set is disclosed, having modifications to the lower die apparatus, the upper die apparatus, and the oscillator head. The purpose of these modifications include the creation of a sealing cavity of annular nature about the oscillator head, such that the elastomer sample is not encapsulated and once cured, may be easily removed from the cavity.

Abstract: An apparatus and method for cutting elastomeric material into volumetric elastomer samples is disclosed. These volumetric samples may be reproduced at identical mass for precision testing purposes. The volumetric samples are reproducible for such precision purposes by the use of a volumetric adjustment mechanism which determines the volume of the cavity into which elastomeric material is compressed before cutting. The apparatus also has a moving cutting mechanism with a contoured cutting area, which in combination with the volumetric adjustment apparatus, removes deleterious air bubbles and other deformities prior to cutting the elastomeric material. The volumetric adjustment apparatus is housed within a die apparatus, which has a damping mechanism to permit complete manipulation of the elastomer prior to cutting the elastomer into the volumetric plug. After the cutting of the plug has occurred, the ejection apparatus pushes the volumetric plug from the cavity whereupon another cycle is begun.