Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
  • B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
  • B63C7/00—Salvaging of disabled, stranded, or sunken vessels; Salvaging of vessel parts or furnishings, e.g. of safes; Salvaging of other underwater objects
  • B63C7/02—Salvaging of disabled, stranded, or sunken vessels; Salvaging of vessel parts or furnishings, e.g. of safes; Salvaging of other underwater objects in which the lifting is done by hauling
  • B63C7/04—Salvaging of disabled, stranded, or sunken vessels; Salvaging of vessel parts or furnishings, e.g. of safes; Salvaging of other underwater objects in which the lifting is done by hauling using pontoons or the like

Definitions

• the invention relates to a salvage construction for salvaging a shipwreck or the like, which salvage construction comprises a portal with legs, which legs serve for positioning at both sides of the shipwreck that is to be salvaged.
• the invention also relates to a method for salvaging such a shipwreck, using the salvage construction referred to above .
• the salvage con- struction is characterized by a sawing wire extending between legs which can be positioned at both sides of the shipwreck.
• a sawing wire extending between legs which can be positioned at both sides of the shipwreck.
• the salvage construction is designed such that the legs that can be positioned at both sides of the shipwreck are embodied with first frames and second frames that cooperate with each other to move the sawing wire in the horizontal and vertical direction within the boundaries of the portal.
• the salvage construction according to the invention is effectively equipped such that it comprises hoisting means for lifting the shipwreck or sections thereof.
• a favourable embodiment of the salvage construction ac- cording to the invention is further characterized in that the legs of the portal are provided with adjustable feet.
• salvaging a shipwreck employing the just explained salvage construction preferably takes place such that the portal is placed over the shipwreck and that hoisting means of the portal are coupled with a shipwreck section, that subsequently a sawing wire is activated for sawing the shipwreck section off the shipwreck that is coupled with the hoisting means, and that subsequently the shipwreck section is hoisted and placed on a floating body, after which the floating body with the sawn off shipwreck section can be removed.
• a pontoon Prior to removing the floating body with the shipwreck section placed thereon, it is further desirable to increase the floating power of the floating body such that it lifts the shipwreck section and the portal, with the legs of the portal lifting from the ground, after which the floating body with the portal is moved to a following position for placing the portal over the remaining section of the shipwreck, where the floating power of the floating body is decreased and the legs of the portal come to rest on the ground.
• - Fig. 3 a schematic representation of a saw cut made in the ship to be salvaged
• - Fig. 4 a detail showing frame portions with which the sawing wire is moved horizontally and vertically, respectively;
• Fig. 6 a portion of the ship being hoisted after completion of the sawing operation
• Fig. 1 shows a salvage construction 1 for salvaging a shipwreck 5 which, as can be clearly seen in Fig. 2, takes the form of a portal, provided with legs 12, 13 for positioning at both sides of the shipwreck 5.
• a sawing wire 7 is provided between the above referred to legs 12, 13 that are placeable at both sides of the shipwreck 5.
• the legs 12, 13 to be placed at both sides of the shipwreck 5 are embodied with (see in particular Fig. 4) first frames 2 and second frames 3 co-operating with each other to move the sawing wire 7 in the vertical and horizontal direction within the boundaries of the portal. This movement is clearly represented by means of the horizontal and vertical dotted lines 14, 15 shown in the Figures 1 and 3.
• legs 12, 13 of the portal are provided with adjustable feet, so as to allow for un- evennesses on the ground on which the portal is positioned.
• adjustable feet are indicated with reference numeral 16 in Fig . 2.
• the hoisting means 4 are coupled to the shipwreck section 6, for example, with the aid of hooks 10 to be provided on the shipwreck section 6.
• the shipwreck section 6 to be removed from the shipwreck 5 is coupled to the hoisting means 4 of the salvage construction 1. This is again shown in Fig. 5.
• the hoisting means 4 can be activated and with their aid the shipwreck section 6 can be removed from the shipwreck 5, as shown in Fig. 6.
• Fig. 7 further shows the operation of hoisting the sawn off shipwreck section 6, while Fig. 8 shows this sawn off ship- wreck section 6 being placed onto a floating body in the form of a pontoon 11.
• the portal 1 is shown to be moved by means of a pontoon 11, which is placed in a central position between the legs 12, 13 of the portal 1, and in the Figs. 13-16 by means of two pontoons 11 placed in a lateral position with respect to the portal 1.
• the floating power of the pontoon or pontoons is first increased such as to enable this floating body 11 to lift the salvage construction 1 from the ground, as shown in Fig. 11 and Fig. 15, respectively.
• the salvage construction 1 can subsequently be moved from this lifted position to a following position as indicated with the arrows A in Fig. 12 and Fig. 16.
• its floating power may be decreased again, so that the salvage construction 1, or rather its legs 12, 13, come to rest on the ground.
• the sawing off and removal of a following section of the shipwreck 5 may take place in the manner described above with refer- ence to Figs. 1-8.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Ocean & Marine Engineering (AREA)
• Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
• Cleaning Or Clearing Of The Surface Of Open Water (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=39717732

Family Applications (1)

Country Status (2)

Cited By (6)

Citations (4)

• 2008
  • 2008-01-02 NL NL2001151A patent/NL2001151C2/nl not_active IP Right Cessation
  • 2008-12-17 WO PCT/NL2008/050806 patent/WO2009084953A1/en active Application Filing

Patent Citations (4)

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