Hollow core holder

Details Hollow core holder Hollow core holder

1981-02-17

1983-08-30

Marbert, James B.

Handling: hand and hoist-line implements

Grapple

Expanding

294 67A, B66C 154

Patent

active

044013361

ABSTRACT:
A hollow core holder comprising a hollow cylinder with a passive cam locking element eccentrically rotatably mounted inside the cylinder such that a portion of the edge of the cam protrudes through a slot in the wall of the cylinder in one rotation status and is wholly within the cylinder in another rotation status. As the core holder is inserted into a hollow core, the cam comes into contact with the core, holding the core to the core holder until a release mechanism rotates the cam into the cylinder, out of contact with the core.

REFERENCES:
patent: 3405965 (1968-10-01), Haas
patent: 4245861 (1981-01-01), Harry et al.

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