A portable tire x-ray apparatus includes a frame having horizontal rollers supporting a tire vertically and a motor connected to at least one of the rollers to cause rotation of the tire. An x-ray tube and a fluoroscope are spaced apart approximately the length of the outer diameter of the tire and are...http://www.google.fr/patents/US4977586?utm_source=gb-gplus-shareBrevet US4977586 - Portable tire x-ray apparatus and method
