GB1286870A - Load transfer means - Google Patents

Load transfer means

Info

Publication number
GB1286870A
GB1286870A GB5953169A GB5953169A GB1286870A GB 1286870 A GB1286870 A GB 1286870A GB 5953169 A GB5953169 A GB 5953169A GB 5953169 A GB5953169 A GB 5953169A GB 1286870 A GB1286870 A GB 1286870A
Authority
GB
United Kingdom
Prior art keywords
cable
tension
velocity
winch
signal
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.)
Expired
Application number
GB5953169A
Inventor
Gerald Martin
John Murray Vines
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.)
CA MINISTER NAT DEFENCE
Minister of National Defence of Canada
Original Assignee
CA MINISTER NAT DEFENCE
Minister of National Defence of Canada
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 CA MINISTER NAT DEFENCE, Minister of National Defence of Canada filed Critical CA MINISTER NAT DEFENCE
Priority to GB5953169A priority Critical patent/GB1286870A/en
Publication of GB1286870A publication Critical patent/GB1286870A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
    • B63B27/18—Arrangement of ship-based loading or unloading equipment for cargo or passengers of cableways, e.g. with breeches-buoys

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Tension Adjustment In Filamentary Materials (AREA)

Abstract

1286870 Constant tension winches; transhipping at sea CANADA NATIONAL DEFENCE MINISTER OF 5 Dec 1969 59531/69 Headings B8B and B8E Apparatus for the transference of a load carriage 15 between relatively moving supply and receiving ships comprises a system for automatically maintaining constant tension in the transfer cable 7 and constant transfer velocity of the carriage 15. The latter rolls along a portion of the cable 7 extending between the tension winch 19 on the supply ship and a roller 11 on the receiving ship, the cable portion thereafter extending to the carriage 15, from which a further cable portion extends to the velocity winch 5 on the supply ship. The cable 7 extending from the tension winch 19 passes around a pneumatically powered cable accumulator 31 for absorbing sudden tension increases, and over a pulley 9 associated with a load cell 45. The latter generates a signal proportional to the cable tension which is electrically compared with a preset tension value and any resulting difference signal causes a variation in the output from an hydraulic pump 23 driving the hydraulic motor 21 of the winch 19 to maintain the cable tension constant. An alternative or additional arrangement for generating a cable tension signal for comparison comprises a tacho-generator 71, 73 associated with the drum of the winch 19 and the pulley 9, any cable velocity variation therebetween, due to the cable accumulation, action, being representative of tension variation in the cable. The drum of the velocity winch 5 is also driven from an hydraulic pump 103 having its output automatically variable under the control of a signal resulting from the comparison of a pre-set velocity signal and a signal derived from a tachogenerator on the velocity drum. In operation, the desired transfer velocity is set for the velocity winch, which velocity is automatically maintained whilst resulting variation in cable tension is compensated for the automatic tension control system.
GB5953169A 1969-12-05 1969-12-05 Load transfer means Expired GB1286870A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5953169A GB1286870A (en) 1969-12-05 1969-12-05 Load transfer means

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5953169A GB1286870A (en) 1969-12-05 1969-12-05 Load transfer means

Publications (1)

Publication Number Publication Date
GB1286870A true GB1286870A (en) 1972-08-23

Family

ID=10483938

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5953169A Expired GB1286870A (en) 1969-12-05 1969-12-05 Load transfer means

Country Status (1)

Country Link
GB (1) GB1286870A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2130164A (en) * 1982-11-16 1984-05-31 Northern Eng Ind Hauling between ships

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2130164A (en) * 1982-11-16 1984-05-31 Northern Eng Ind Hauling between ships
FR2564447A1 (en) * 1982-11-16 1985-11-22 Northern Eng Ind WINCH DEVICE FOR LOAD TRANSPORT BY CABLES
US4666127A (en) * 1982-11-16 1987-05-19 John Allen Winch system

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees