A boat anchor includes a short arcuate shank having transversely extending plow-type flukes at one end and transversely extending ears at the other end. A metal cable connects to the rear end where the plow flukes are positioned, and extends to a constraining guide located on the shank between the flukes and the ears. The cable then extends through a longitudinally non-constraining front guide on the shank end near the ears of the anchor. The cable partially wraps around the shank in its path between the intermediate guide and the front guide. For use on rocky bottoms, the cable is disengaged from the intermediate guide. By attaching the cable to the shank adjacent to the plow flukes, pulling stresses from the cable are applied to the intermediate constraint and fluked end of the anchor. The shank between the ears and the intermediate constraint is not fully stressed and those portions can be made thinner and lighter without affecting the holding power of the anchor. When the anchor is initially dragged, a working surface of the ears engages the bottom and causes the anchor to rotate into a preferred position from which the plow flukes dig their way rapidly into the sea bottom. The ears also dig their way into the sea bottom such that the anchor becomes completely buried. Thereby, very high holding efficiency and low bending risk are achieved with an anchor having a light-weight construction.
The present invention provides an improved anchor which is capable of being readily laid, irrespective of the holding or anchorage involved. The anchor includes a first fluke or base member (2), an elongate shank member (9) to which at least one anchor line or chain may be attached, and a second fluke (20) from and disposed substantially parallel to the first fluke (2) but is of a smaller size than the first fluke (2).
A marine anchor having integral flukes which have together a delta configuration. The flukes have a trailing arcuate edge. Each fluke has a wedge cut into the trailing portion to provide extending outer fins. The fins are turned downwardly to provide flaps that produce a self righting anchor and one that results in a horizontal planing when the anchor is pulled.
