Patent Number: 048184705
Section: claims

1. In a nuclear reactor system having a hold down bolt attached to a steam separator within reactor water for the prevention of radioactive exposure to testing personnel, said bolt having an inner, lower tension member with a rectangular engaging lug, and an outer, coaxial compression bolt member, an apparatus for testing the tension member at the lug, comprising: a shoe;  means for attachment of a pole to the top of said shoe to permit submersed manipulation of said shoe;  a piezoelectric device mounted to the bottom of said shoe and exposed upwardly to and toward said tension member of said bolt for contacting said tension member at said lug for nondestructive piezoelectric testing of said tension member from said lug at the bottom of said bolt to and toward the top of said bolt;  a clamp member for reciprocal movement towards and away from said shoe member;  means mounting said clamp member for reciprocal movement towards and away from said shoe for releasably clamping said lug against said shoe at said piezoelectric device for ultrasonic testing of said inner tension member of said bolt with ultrasonic sound from said piezoelectric device.  maintaining said steam separator under water;  moving said bolts to unlatch said bolts from brackets on said shroud adjacent said steam separator;  providing a shoe having a piezoelectric device mounted to the bottom of said shoe and exposed upwardly;  providing a remotely actuated clamp attached to said shoe overlying said piezoelectric device;  providing a mount to said shoe for manipulating said shoe underwater in a depending relationship at the bottom end of a pole;  providing a pole and attaching said pole to said shoe;  manipulating said shoe to the bottom of said bolt;  clamping said shoe to said bolt; and testing said bolt with said piezoelectric device. 2. The invention of claim 1 and wherein said shoe defines a concavity for receiving the bottom of said bolt. 3. The invention of claim 2 and wherein said shoe has an end wall and two side walls to define said concavity. 4. The invention of claim 1 and wherein said bolt has a shaft, and said clamp member defines an open shaft receiving aperture for sliding movement on the shaft of said bolt. 5. A process of testing hold down bolts depending from the sides of a steam separator within a nuclear reactor, said process comprising the steps of: