A convertible anchor capable of being converted between a first position usable on sandy bottom floors and a second position usable on debris laden bottom floors, such as reefs. The convertible anchor may include an elongated shank and one or more flukes rotatably coupled to the elongated shank. The convertible anchor may also include an engagement limiting device placing the convertible anchor in a first position in which the fluke is prevented from rotating relative to the elongated shank. The...

A convertible anchor capable of being converted between a first position usable on sandy bottom floors and a second position usable on debris laden bottom floors, such as reefs. The convertible anchor may include an elongated shank and one or more flukes rotatably coupled to the elongated shank. The convertible anchor may also include an engagement limiting device placing the convertible anchor in a first position in which the fluke is prevented from rotating relative to the elongated shank. The...

A bi-metal light weight self penetrating boat anchor includes flukes 18A and 18B and a crown 16 formed of light weight material, such as aluminum, and includes a shank 12 and stock 14 formed of heavier material such as stainless steel. The heavier shank assures that the shank will lie flat on the lake bottom when being dragged by the boat, and the stronger heavier stock resists bending or other deterioration when engaging obstacles at the lake bottom. The reduced weight of the crown and flukes p...

An anchor in which an L-shaped shank has a single trapeziform fluke pivotally secured to the shorter leg of the L provides a larger surface area for the palm of the fluke. The fluke is configured such that a center of force is directed perpendicularly to the shorter leg of the L to minimize the tendency of the anchor to move sideways or crab.

An automatic levelling self-bedding anchor having a high capacity for levelling and an improved capacity for positioning and bedding, which comprises: 1. an elongated shank (5); 2. a cam plate (6) with pivot (7), connected to the shank at or near to one end of the shank; 3. a gusset plate (4) connected to the shank through the cam plate pivot; 4. a fluke limit means (3) connected to the gusset plate adapted to retain the fluke pivot shaft, whereby the limit means retaining the pivot shaft contro...

Anchor for anchoring dredgers, off-shore drilling platforms and other special purpose vessels, comprising a shank, two flukes hinged to the shank having together a Delta shape, trim plates or head faces provided on both sides of the flukes, the width of the trim plates being less than the total width of the flukes, characterized in that the outer ends of both trim plates are connected to the outer rims of the flukes by stabilizing plates which enclose an acute angle both with the direction of th...

An anchor having a two-handed fluke, the two hands thereof being separated by a slot in which the anchor shank is mounted for slewing to each side of the fluke on a pivot which substantially coincides with the geometric center of the fluke surface area and is journaled in a pivot box formed by side plates on the inner edges of the fluke hands and head plates connecting the side plates and delimiting the slewing angle of the shank, and having rear stabilizers on the outer edges of the fluke hands...

An anchor in which an L-shaped shank has a single fluke pivotally secured to the shorter leg of the L. The L-shaped shank lies substantially in a plane. The fluke pivots through the plane but not in the plane. The fluke has a single triangular, planar fluke member which may be disposed in the plane. The longer leg of the shank is arcuate and the anchor cable is attached thereto.

The anchor comprises a shank and a rocker which is mounted in the vicinity of one end of the shank to pivot about an axis perpendicular to the shank and to the rocker and which has two equal branches constituting the arms of the anchor. Each arm carries at its free end a ploughshare whose convergent end portion faces the other end of the shank. The convex faces of the two ploughshares are disposed in confronting relation. In operation, the anchor operates in the same way as conventional so-calle...

A novel shank is provided for an anchor which greatly improves the retention capacity of the anchor. The shank has a tip joined by an intermediate portion to a body portion. These three elements when at rest are in alignment along the longitudinal axis of the shank. The shank is inflexible in a first plane and is flexible in a second plane which is oriented at 90.degree. to the first plane to an extent such that the tip can be moved in the second plane into a position wherein it is substantially...