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Title: Pipe lifting hook having clamp assembly

A pipe lifting hook is provided having a generally ''C'' shaped hook member having an elongated lower portion being insertable within the end of a joint of pipe and having an upper portion positionable above the pipe and provided with lifting connection means. The hook member is frictionally clamped to the pipe by grip shoe means that is movably supported by the upper portion of the hook member and is selectably movable from a released position out of contact with said pipe to a locked position in frictional locking engagement with the outer surface of the pipe. A ratchet mechanism couples said grip shoe means to the upper portion of the hook member and is manually positionable to lock said grip shoe means at said locked position or release said grip shoe means for movement toward said released position thereof.
Authors:
Publication Date:
OSTI Identifier:
6506368
Report Number(s):
US 4453758
Resource Type:
Patent
Resource Relation:
Patent File Date: Filed date 3 Dec 1981; Other Information: PAT-APPL-327128
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; DRILLING RIGS; MATERIALS HANDLING EQUIPMENT; DESIGN; PIPES; HOISTING; GRABS; MATERIALS HANDLING; OFFSHORE OPERATIONS; EQUIPMENT 420206* -- Engineering-- Mining & Drilling Equipment & Facilities-- (1980-1989)