Anchor
AssigneeBrupat Limited
InventorPeter Bruce
Life of this patent
Estimating the term…
Abstract
A marine anchor including a main fluke with a shank attached to the fluke. To enable the anchor to orientate on the sea bed from an inverted position to an upright working position, auxiliary flukes are supported by respective lugs upstanding from the fluke on either side of the anchor's vertical plane of symmetry. The auxiliary flukes extend laterally from the lugs and are inclined at an acute angle to the main fluke. The anchor includes support means arranged such that when the anchor lies inverted on a firm seabed one of the auxiliary flukes is located in position for digging in when the anchor is pulled forwardly.
Claims23
A marine anchor comprising a fluke arranged transversely to a longitudinal plane of symmetry of the anchor, a shank adapted at one end for attachment to an anchor line and at the other end for attachment to said fluke, said fluke including a main fluke member and fluke side structures on each side of said plane of symmetry, each fluke side structure including an upstanding lug and an auxiliary fluke attached to the lug so as to be remote from the plane of symmetry, each auxiliary fluke extending substantially transversely to said plane of symmetry and providing a leading surface inclined upwardly at an acute forwardly opening angle .beta..sub.1 to a plane at right angles to said plane of symmetry and having a fluke central line;
- and support means about which the anchor tilts when inverted on a firm horizontal mooring be surface to bring one of said fluke side structures into contact with the mooring bed with the leading surface of the auxiliary fluke of said one fluke side structure inclined upwardly at an obtuse forwardly opening angle .beta..sub.2 to the horizontal mooring bed surface whereby the auxiliary fluke digs nto the mooring bed surface on forward movement of the inverted anchor.
Dependencies are inferred from the claim text.