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US 4,060,727 AGranted
Method and apparatus for the radiographic inspection of tubes
AssigneeVallourec (Usines a Tubes de Lorraine-Escaut et Vallourec Reunies)
InventorJacques Verdickt
Life of this patent
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Abstract
Apparatus for the radiographic inspection of tubes comprises a chamber coining a radiation emitter, a carriage for positioning a selected section of the tube opposite the emitter, a movable member for positioning a film inside the tube opposite the emitter, and a remote control system for operating the emitter, carriage, and movable member from outside the chamber. Method of making a film of a selected area of said tube with said apparatus.
Claims7
Device for the radiographic inspection of tubes which comprises:
- an elongated chamber provided with an opening for the introduction of a tube to be inspected;
- a rod projecting from a point outside said chamber into said chamber opposite said opening and extending substantially the full length of the chamber, said rod being provided with means for guiding a mobile film support along the rod;
- a radiation emitter positioned inside the chamber;
- tube-transporting means for bringing a tube to be inspected from outside the chamber through said opening so as to encircle the rod, said tube transporting means comprising at least one carriage movable on guide rails and carrying means for rotating the tube about its own axis;
- control means for said tube-transporting means adapted to be actuated from outside the chamber to immobilize said tube transporting means when a selected zone of the tube is opposite the radiation emitter;
- and control means for said film support adapted to be actuated from outside the chamber to move said support from a first position near the end of said rod outside the chamber and a second position opposite said emitter.
3 more elements
Dependencies are inferred from the claim text.