Abstract

A fluked burying device (1, 1A), for augmenting the burying and holding capability of a drag embedment marine anchor and chain cable system while being fixedly located thereon, comprises a fluke member (8) inclinedly attached to a body member (7) including pockets (12A, 12B, 12C) for accommodating links (16, 17) of a chain cable (4) passing there-through in a defined attitude such that axial and transverse loading is impressed in the chain cable (4) via separate links (17A, 17C) to maintain bending stresses therein similar to that occurring in a 5-pocket wildcat of a chain windlass and such that emergent links (16A, 16B) have sufficient articulation in service while embedded to permit the chain cable (4) to perform the function of and eliminate need for heavy expensive shackles. The fluked burying device (1, 1A) enables soil loading from a plurality thereof to be distributed along a length of chain cable (4) and is preferably provided with a body member (7) less wide than the effective footing width of a chain cable (4) and preferably split about a plane of symmetry (5) in two halves (2, 3) for ease of transport within container gauge.

IPC Classes  ?

• B63B 21/34 - Anchors rigid when in use with two or more flukes

Abstract

A marine anchor (1) which includes a plane of symmetry (18A) and comprises a fluke member (2) connected to a first clevis member (12) containing a first clevis (12A) arranged to open substantially away from said fluke member (2), wherein a second clevis member (14) is pivotably attached to said first clevis member by means of a first pin member (19) located in first bore-holes (15) in said first clevis member and a second bore-hole (16) in said second clevis member, said first and second bore-holes having a common first axis traversing said first clevis and said second clevis member, said second clevis member having a second clevis (14A) arranged to open away from said first pin member and including third bore-holes (23) having a common second axis (24) traversing said second clevis, said third bore-holes accommodating a second pin member for linking with an anchor line member (5, 7) forming part of an anchor line (6, 8), said first axis lying in a plane at substantially right angles to said plane of symmetry, said second axis lying substantially in said plane of symmetry, whereby pivoting of said second clevis member relative to said first clevis member and pivoting of said anchor line member about said second pin member and relative to said second clevis member allows said anchor line when taut to swing both in and transverse to said plane of symmetry without being subjected to bending.

IPC Classes  ?

• B63B 21/20 - Adaptations of chains, ropes, hawsers, or the like, or of parts thereof
• B63B 21/24 - Anchors
• F16G 15/06 - Shackles designed for attachment by joint pins to chain elements, e.g. D-shackles

Abstract

A marine anchor is described which has a fluke with a shank pivotably attached thereto wherein the shank is remotely lockable pivotably and subsequently remotely unlockable pivotably with respect to the fluke.

IPC Classes  ?

• B63B 21/42 - Anchors pivoting when in use with one fluke of ploughshare type
• B63B 21/46 - Anchors with variable, e.g. sliding, connection to chain

Abstract

An anchor data communication system (1) for communication of measurement data, provided by instrumentation (2) mounted on a marine anchor (3) buried below a surface (5) of a mooring bed (4), including a first transponder (10) mounted on a line member (7, 3D) attached to said anchor (3) and connected by conductor means (11) to said instrumentation (2), and a second transponder (12, 12A) mounted on said line member (7, 3D) or suspended from a floating structure (8, 21A) and connected to a transceiver (9, 9A) on said floating structure (8, 21A), wherein an axis (10A, 12B) of an emission beam (10B, 12C) of at least one of said transponders (10, 12, 12A) is constrained in heading by said line member (7, 3D) to maximize the strength of signals from said first transponder (10) arriving at said second transponder (12, 12A).

IPC Classes  ?

• B63B 21/26 - Anchors securing to bed
• H04B 13/02 - Transmission systems in which the medium consists of the earth or a large mass of water thereon, e.g. earth telegraphy

Abstract

A marine anchor (1, 40, 40A, 40B, 40C) for deep embedment in a seabed soil (2) including a fluke member ( 4, 41) and a shank member (7, 49) and means (12, 62, 62A) for constraining a load application point thereon (13, 15, 63, 63A, 65) to lie in first and second directions from a centroid (9,46) of said fluke member (4, 41) forming, with respect to a fore-and-aft direction (10, 47) of the fluke member (4, 41), an acute forward- opening angle (A) and an acute rearward-opening angle (C) respectively whereby said marine anchor (1, 40, 40A, 40B, 40C) can be pulled rearward to bury deeply in a rearward direction (R) after having been pulled forward to bury deeply in a forward direction (F).

IPC Classes  ?

• B63B 21/42 - Anchors pivoting when in use with one fluke of ploughshare type
• B63B 21/46 - Anchors with variable, e.g. sliding, connection to chain
• B63B 21/38 - Anchors pivoting when in use

Abstract

A marine chaser stopper (1) which automatically establishes and maintains a desirable pointing direction of an anchor (16) towards a floating structure during laying out of the anchor. The chaser stopper is locatable on an anchor line (13) and shaped so as to provide a blocking portion to prevent the passage of a closed loop chaser over the stopper, and a leading portion so that the chaser can be led onto the stopper over the leading portion such that the relative positioning of the chaser with respect to the stopper can be used to establish a desirable pointing direction of the anchor.

IPC Classes  ?

• B63B 21/20 - Adaptations of chains, ropes, hawsers, or the like, or of parts thereof