Tool for vertically supporting tie rod assembly against clevis p

Details Tool for vertically supporting tie rod assembly against clevis p Tool for vertically supporting tie rod assembly against clevis p

1995-09-22

1997-12-16

Jordan, Charles T.

Induced nuclear reactions: processes, systems, and elements

Miscellaneous

376260, 376 81, 376271, 376372, G21C 101

Patent

active

056993978

ABSTRACT:
A tool for vertically supporting a shroud repair tie rod assembly having a clevis hook by bracing the clevis hook against a clevis pin installed in a gusset plate. This allows the vertical support at the upper end of the tie rod assembly to be removed, so that the upper support structure can be coupled to the tie rod. The lower end of the tie rod assembly is supported on both sides of the gusset plate. The tool for vertically supporting the lower end of the tie rod assembly is designed to fit in the narrow space bounded by a jet pump diffuser, the gusset plate and the reactor pressure vessel. The vertical support tool includes a pole adaptor for coupling to the end of a service pole, a pole adaptor extension having one end connected to the pole adaptor, a mounting block connected to the other end of the pole adaptor extension, and a hydraulic spreader mounted on the mounting block. The hydraulic spreader opens in response to actuation of a hydraulic cylinder. In the open position, an upper surface of the pivoting member bears against a bottom surface of the clevis hook with sufficient force to vertically support the tie rod assembly against the clevis pin.

REFERENCES:
patent: 4043705 (1977-08-01), Schlosser
patent: 4053356 (1977-10-01), Brammer, Jr.
patent: 4292130 (1981-09-01), Viaud et al.
patent: 4986953 (1991-01-01), Bernard
patent: 4995158 (1991-02-01), Howell et al.
patent: 5084231 (1992-01-01), Dixon et al.

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