US 4,227,828 A · Building berth vessel support and handling system

Abstract

According to the invention, the building berth vessel support and handling system comprises longitudinal and transverse rows of keel blocks which serve to support a vessel as she changes position. Each keel block, in turn, comprises a support, a lifting mechanism installed in the support, and a housing accommodating a support pad which is shaped as a body of revolution, for example, a cylinder, and rests on the lifting mechanism.

Drawings

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Drawings

Claims9

Dependent claims

A building berth vessel support and handling system comprising:

a first plurality of keel blocks arranged in longitudinal rows for supporting a vessel as the vessel is moved in a longitudinal direction, said first plurality of keel blocks having support pads for supporting the vessel, said support pads being movable between raised and lowered positions;
a second plurality of keel blocks arranged in transverse rows for supporting a vessel as the vessel is moved in a transverse direction, said second plurality of keel blocks having support pads for supporting the vessel, said support pads being movable between first and second positions, the first positions being lower than the raised positions and the second positions being higher than the lowered positions of said support pads of said first plurality of keel blocks;
and
each of said first and second plurality of keel blocks comprising:
a support positionable on a floor of a building berth;
a lifting mechanism installed in said support for raising and lowering said support pad;
a housing resting on said lifting mechanism and accommodating said support pad, said housing being movable by said lifting mechanism to raise and lower said support pad, the support pads of said first plurality of keel blocks being positionable in said raised positions, and the support pads of said second plurality of keel blocks being positionable in said first lower positions to facilitate longitudinal movement of a vessel, and the support pads of said first plurality of keel blocks being positionable in said lowered positions, and the support pads of said second plurality of keel blocks being positionable in said second higher positions to facilitate transverse movement of a vessel.

4 more elements

Dependencies are inferred from the claim text.

Description1,186 words

Summary639 words

#The present invention relates to shipbuilding and, more particularly, to means for supporting and moving vessels on building sites, such as horizontal berths, dry docks, etc.

#The invention is best suited for the handling of parallel middlebodies, as well as hulls of tankers, combination OO, OB, OBO, and PrOBO carriers, bulk carriers and LNG and LPG tankers. The deadweight tonnage of such ships is expected to be in the range of 20,000 to 360,000 tons.

#It is customary in modern practice to use stationary keel blocks to support a vessel on a building berth. The keel blocks are arranged in longitudinal rows and spaced at a certain distance from one another, depending on the load distribution (cf. A. K. Syrkov, Sovremennye sudostroitelnye verfi/Modern Shipyards/, Sudostroyeniye Publishers, Leningrad, 1976).

Brief description of the drawings4 figures

#The invention will now be explained in greater detail with reference to a specific embodiment thereof, taken in conjunction with the accompanying drawings, wherein:

#FIG. 1 is a plan view of a building berth vessel support and handling system in accordance with the invention;

#FIG. 2 is a section taken on line II--II of FIG. 1;

Detailed description464 words

#Referring to the attached drawings, the building berth vessel support and handling system according to the invention comprises longitudinal rows 1 (FIG. 1) and transverse rows 2 of keel blocks 3 arranged on a building berth. The spacing of the keel blocks 3 is determined by the load they have to carry.

#The rows 1 are not necessarily parallel, and the rows 2 are not necessarily transverse to the axis of the building berth, their arrangement being determined by specific assembly requirements.

#Tracks 4 (FIGS. 2 and 3) are laid between the longitudinal rows 1, and tracks 5 are laid between the transverse rows 2.

Facts

Application

05/911,537Filed 1 Jun 1978

Priority

SU 2492490[I]1 Jun 1977

Granted

14 Oct 1980

Term ended

1 Jun 1998

Estimated · how

Pre-1995 term; greater of 17 years from grant or 20 years from filing when eligible. Maintenance-fee lapses, terminal disclaimers and statutory extensions have not been checked. The continuity chain may be incomplete; this is not an enforceability determination.

Classification2 codes

B63C 5/04
Stagings; Scaffolding; Shores or struts: bilge or keel blocks
B63C
Launching, hauling-out, or dry-docking of vessels

Building berth vessel support and handling system

Life of this patent

Building berth vessel support and handling system

Life of this patent

Life of this patent

Abstract

Drawings

Drawings

Claims9

Description1,186 words

Drawings

Classification2 codes

Life of this patent

Description1,186 words