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An adjustable davit arrangement is attachable to a pair of pier pilings for raising or lowering a vessel and comprises a first davit mounted on a first pier piling, a second davit mounted on a second pier piling, a rotatable drive pipe extending between respective distal ends of the first and second

An adjustable davit arrangement is attachable to a pair of pier pilings for raising or lowering a vessel and comprises a first davit mounted on a first pier piling, a second davit mounted on a second pier piling, a rotatable drive pipe extending between respective distal ends of the first and second davits, pick-up flanges disposed near respective ends of the rotatable drive pipe for raising or lowering the vessel via respective cables as the drive pipe is rotated, and a winch motor mounted in proximity to one of the davits and operating with a gear reducing drive drum mounted on the drive pipe so as to cause the drive pipe to rotate, thereby raising or lowering the vessel. Simplicity in assembly and operation, and economy, are achieved by use of a single winch motor. Flexibility in raising boats of various sizes to a desired height above the pier decking, while maintaining a desired lateral distance between the edge of the pier decking and the boat, is achieved by use of adjustable davits having extension arms telescopically slidable in a support arm, in conjunction with adjustable knee braces associated with each davit. The risk of breaking pier pilings is reduced or eliminated by employing a stanchion mounted along the lengthwise dimension of each pier piling, thereby distributing the lifting forces along the length of each pier piling.

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An arrangement which is attachable to a pier for raising or lowering a vessel while the orientation of said vessel remains substantially unchanged, said pier including a first and a second pier piling and a pier decking having an upper surface, said first and second pier pilings each being substanti

An arrangement which is attachable to a pier for raising or lowering a vessel while the orientation of said vessel remains substantially unchanged, said pier including a first and a second pier piling and a pier decking having an upper surface, said first and second pier pilings each being substantially vertically oriented, said first and second pier pilings each including an upper projection above said upper surface of said pier decking and a lower extension beneath said upper surface of said pier decking, said arrangement comprising: a first and a second stanchion respectively mounted substantially vertically on each of said first and second pier pilings along said upper projection and further at least along a portion of said lower extension; a first and a second davit each having a near end mounted on said first and second stanchion respectively, each of said first and second davits having a far end disposed substantially vertically above said vessel while said vessel is being raised or lowered; a rotatable drive axle extending between respective said far ends of said first and second davits; self-aligning bearing means mounted on each of said first and second davits proximally to each respective said far end to rotatably bear said rotatable drive axle; first and second pick-up means disposed on said rotatable drive axle for raising or lowering said vessel; and electrical motor means operatively associated with one of said first and second davits and with said rotatable drive axle for rotating said rotatable drive axle so as to cause said first and second pick-up means to raise or lower said vessel; whereby said self-aligning bearing means is operative to compensate for misalignments between respective said far ends of said first and second davits; wherein said rotatable drive axle is disposed at a horizontal distance from said first and second stanchions so that said vessel is maintained at a given lateral distance from said pier.