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US 4,307,567 AGranted
Chain shackles
AssigneeSTAS Societe Technique d'Accessoires Specialises
InventorJean F. Archer
Life of this patent
Estimating the term…
Abstract
A chain shackle has a U-shaped body with flat parallel limbs interconnected by a bight portion with a longitudinal slit accommodating an end link of a chain which is engaged inside the shackle by a half-link resting against the inner surface of the bight portion. The half-link has an integral lug which is traversed by a pin laterally offset from the slit serving to hold that half-link in a chain-retaining position.
Claims5
A chain shackle comprising:
- a generally U-shaped unitary body with substantially parallel limbs interconnected by a substantially semicylindrically curved bight portion bisected by a slit in a longitudinal plane of symmetry perpendicular to its axis of curvature;
- a retaining member in the form of one half of a generally O-shaped chain link of round cross-section with a diameter substantially equaling the width of said slit, said retaining member being disposed between said limbs close to said bight portion for engagement with a generally O-shaped end link of a chain traversing said slit;
- and
- removable holding means coupled to said limbs and to said retaining member for keeping the latter in a link-engaging position.
1 more element
Dependencies are inferred from the claim text.