FR2372074A1 - Emergency buoy and grab guide for raising submerged vessels - involving an aromatic polyamide filament tether and PVC grab alignment components - Google Patents

Emergency buoy and grab guide for raising submerged vessels - involving an aromatic polyamide filament tether and PVC grab alignment components

Info

Publication number
FR2372074A1
FR2372074A1 FR7636620A FR7636620A FR2372074A1 FR 2372074 A1 FR2372074 A1 FR 2372074A1 FR 7636620 A FR7636620 A FR 7636620A FR 7636620 A FR7636620 A FR 7636620A FR 2372074 A1 FR2372074 A1 FR 2372074A1
Authority
FR
France
Prior art keywords
grab
line
pvc
aromatic polyamide
buoy
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR7636620A
Other languages
French (fr)
Other versions
FR2372074B1 (en
Inventor
Jean-Francois Drogou
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NAL POUR EXPL OCEANS CENTRE
Original Assignee
NAL POUR EXPL OCEANS CENTRE
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NAL POUR EXPL OCEANS CENTRE filed Critical NAL POUR EXPL OCEANS CENTRE
Priority to FR7636620A priority Critical patent/FR2372074A1/en
Publication of FR2372074A1 publication Critical patent/FR2372074A1/en
Application granted granted Critical
Publication of FR2372074B1 publication Critical patent/FR2372074B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/02—Devices for facilitating retrieval of floating objects, e.g. for recovering crafts from water
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)

Abstract

A buoy which can be released from a submersible vessel is designed to carry a fine line to the surface so that the line may subsequently be used to guide an automatic grab down to engage lifting tackle on the submerged vessel. Used for recovery of submarines or probes unable to rise from the sea bed without aid. To minimise storage space, the line is of 'KEVLAR' (RTM - aromatic polyamide) filament or cord about 2mm dia, with a braking load of 300 kg. The grab, lowered from e.g. a shipboard crane, descends the line using internal guides of non-abrasive plastics material. The grab has a conical mouth which engages a conical head made of e.g. PVC to centralise the grab with a lifting coallar at the base of the line. Remotely operated explosive bolts may be used to release the buoy or secure the grab.
FR7636620A 1976-11-26 1976-11-26 Emergency buoy and grab guide for raising submerged vessels - involving an aromatic polyamide filament tether and PVC grab alignment components Granted FR2372074A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7636620A FR2372074A1 (en) 1976-11-26 1976-11-26 Emergency buoy and grab guide for raising submerged vessels - involving an aromatic polyamide filament tether and PVC grab alignment components

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7636620A FR2372074A1 (en) 1976-11-26 1976-11-26 Emergency buoy and grab guide for raising submerged vessels - involving an aromatic polyamide filament tether and PVC grab alignment components

Publications (2)

Publication Number Publication Date
FR2372074A1 true FR2372074A1 (en) 1978-06-23
FR2372074B1 FR2372074B1 (en) 1980-04-04

Family

ID=9180663

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7636620A Granted FR2372074A1 (en) 1976-11-26 1976-11-26 Emergency buoy and grab guide for raising submerged vessels - involving an aromatic polyamide filament tether and PVC grab alignment components

Country Status (1)

Country Link
FR (1) FR2372074A1 (en)

Also Published As

Publication number Publication date
FR2372074B1 (en) 1980-04-04

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Legal Events

Date Code Title Description
ST Notification of lapse