Title:
ALIGNNING DEVICE FOR ACCESS HOLE LID OF REACTOR PRESSURE VESSEL
Document Type and Number:
Japanese Patent JPH0675085
Kind Code:
A
Abstract:
PURPOSE: To measure the center of an access hole lid against the origin of the device and exactly place the lid axis in the center.
CONSTITUTION: A base plate 28 having a coupling frame 24 capable of coupling with a metal hook 23 in the upper surface of an access hole lid 7 is provided. The main frame 17 is put on the base plate 28 and supported rotation free. On the main frame 17, an ultrasonic probe 39 is placed for detecting the outer end position of boss shape level difference part 38 fixed on the back side of the lid 7. On one side of the main frame 17, an arm 34 is supported free of standing and lying. At the tip of the arm 34, a scriber 35, a scale plate 36 and a camera 37 are placed.
Inventors:
ONO MITSUO
HOZUMI SEISUKE
KASAHARA ICHIRO
INOUE AKIHIKO
OKUBO RYOTA
TAMURA MITSURU
HOZUMI SEISUKE
KASAHARA ICHIRO
INOUE AKIHIKO
OKUBO RYOTA
TAMURA MITSURU
Application Number:
JP24606292A
Publication Date:
March 18, 1994
Filing Date:
August 24, 1992
Export Citation:
Assignee:
ISHIKAWAJIMA INSPECTION & INST
ISHIKAWAJIMA HARIMA HEAVY IND
ISHIKAWAJIMA HARIMA HEAVY IND
International Classes:
G01N29/26; G21C17/003; (IPC1-7): G21C17/003; G01N29/26
Attorney, Agent or Firm:
Mitsuo Sakamoto
Next Patent: DETACHING MACHINE FOR LOCK SLEEVE FOR INTERNAL PUMP