An anchor includes an approximately frustoconical main body having a small height, and a chain attaching shank is located at the center of the main body and is rotatable about a substantially vertical axis.

A boat anchor having elongated flat flukes clustered on the shank in variable arrangements and a bail secured at each end of the shank for attaching the line to the boat.

An anchor which attaches to a tree, stump or other stationary object for anchoring a buoyant vessel such as a boat, in a relatively stationary position. The anchor consisting of a clamping device, a pair of tongs attached to and extending from the clamping device, and an anchor line to attach the anchor to the boat. The tong engaging the tree or other stationary object to securely anchor and hold the boat in a relatively stationary position.

An improved anchor comprising a central longitudinal stem, or flat bar, two cylindrical bars arranged symmetrically near one end of the flat bar and in a transversal sense, two triangular-shaped flukes each with a tubular base for insertion on the cylidnrical bars, the axial displacement being limited by washers and pins, each fluke turning independently with an amplitude between the flukes of at least 120.degree., the amplitude determined by the distance of two triangular tops from the central ...

A self-drilling anchor for insertion into a workpiece such as a drywall to secure an element to the workpiece comprises a drilling portion having substantially parallelo-gram configured blade means for drilling a bore of pre-determined diameter into the workpiece, and a threaded portion including a generally cylindrical body of a diameter substantially the same as the diameter of the bore. The body has thread means for tapping into the bore to secure the anchor in the workpiece. The body also ha...

An improved anchor comprising a longitudinal shank assembly, a fluke assembly mounted on an axle that is perpendicularly disposed with respect to the shank assembly and a release mechanism that allows, when tripped, the fluke assembly to rotate freely to form an angle of 180 degrees with respect to the shank assembly. The release mechanism is designed so that tripping occurs when the angle of the chain or cable is above a desired critical angle.

An anchor having a twin fluke comprising closed hollow double-plate fluke structures, a shank hinged between the flukes substantially in the gravity center of the fluke, fluke angle delimiters on either side of the hinge, rear stabilizers at the side edges of the fluke, front stabilizers in the form of forwardly and outwardly diverging fluke finger tips, and wings connecting the fluke angle delimiters and each of the rear stabilizers, the wings diverge rearwardly and converge outwardly towards t...

An anchor for use in slab facings comprises an anchor bolt (2), which has an inner end that is adapted to be inserted into and to be embedded in mortar in a hole (6) formed in a wall (7) to be faced and an outer end provided with a transverse rod (1) for insertion into at least one bore formed in at least one edge face of at least one facing slab (9). To ensure that the anchor can be economically fixed and that the facing slabs can be mounted quickly, the anchor bolt (2) is provided at its inner...

A gliding anchor for mooring a vessel includes a central shank having a weighted forward end and a blade hinged to said shank. The blade is hinged to the shank by means of a pantographic linkage, the rear link being longer than the forward link to provide downward inclination of the blade when in its open position. The blade is provided with a pair of upswept wings extending on either side of the shank which serve to cause the anchor to glide when the blade is deployed in a first position wherei...

An anchor with a shaft and a head portion made of high density lead and having a plurality of flukes extending radially from the head portion.