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Title: Lifting device for nuclear power plants

A lifting device for lifting and transporting nuclear fuel elements. This device comprises a mast-like support on the lower end of which automatically operated and locked gripping pawls are provided. The support has a considerable height and may be referred to as lifting mast. The gripping pawls and their operating mechanism are referred to as gripping-head. The gripping-head and the lifting mast are telescopically movable relative to each other. To this end guide rods and compression springs are interposed between the lower end of the lifting mast and the gripping-head. The gripping-head comprises two concentric annular members which are relatively movable or rotatable about their common geometrical axis. One of the annular members supports the gripping pawls are T-shaped. One of their transverse ends is adapted to engage the fuel rods, and the other of their transverse ends is adapted to engage curved grooves in the other annular member. The rotary motion of one annular member relative to the other gripping pawls. In their limit positions the two annular members are blocked by a safety lever engaging slits or slots.
Authors:
Publication Date:
OSTI Identifier:
6410033
Report Number(s):
US 4460536
Resource Type:
Patent
Resource Relation:
Patent Priority Date: Priority date 15 Jun 1981, Germany, Federal Republic of (F.R. Germany); Other Information: PAT-APPL-273802
Country of Publication:
United States
Language:
English
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS; FUEL RODS; HOISTS; TRANSPORT; DESIGN; GRABS; HEIGHT; NUCLEAR POWER PLANTS; ROTATION; SAFETY; SUPPORTS; DIMENSIONS; EQUIPMENT; FUEL ELEMENTS; MATERIALS HANDLING EQUIPMENT; MECHANICAL STRUCTURES; MOTION; NUCLEAR FACILITIES; POWER PLANTS; REACTOR COMPONENTS; THERMAL POWER PLANTS 220300* -- Nuclear Reactor Technology-- Fuel Elements