Grappling device with collapsible gripping arms

Handling: hand and hoist-line implements – Grapple – Pivoted jaws

Patent

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Details

B66C 110

Patent

active

041335694

ABSTRACT:
Three gripping arms are held either in work or storage position, and in storage position the sharp points of the arms are protected from injuring personnel. A line is attached to an eye on the lower end of a stem, the upper end of the stem being threaded. A spreader having three radial slots is fixed a set distance below the upper end of the stem. The upper ends of gripping arms, which are pointed at their lower ends, fit into the slots and are pivoted to the spreader. A hollow nut threaded on the stem has a cam surface which cooperates with cam surfaces on the upper ends of the arms to hold the arms either in outwardly-spread work position or collapsed storage position.

REFERENCES:
patent: 1841721 (1932-01-01), Esary et al.

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