GB987611A - Improvements in or relating to grapnels for submarine cables - Google Patents

Improvements in or relating to grapnels for submarine cables

Info

Publication number
GB987611A
GB987611A GB4203860A GB4203860A GB987611A GB 987611 A GB987611 A GB 987611A GB 4203860 A GB4203860 A GB 4203860A GB 4203860 A GB4203860 A GB 4203860A GB 987611 A GB987611 A GB 987611A
Authority
GB
United Kingdom
Prior art keywords
cable
pulleys
grapnels
grapnel
prongs
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
GB4203860A
Inventor
Robert Alston Brockbank
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.)
Post Office
Original Assignee
Post Office
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
Priority to US3127270D priority Critical patent/US3127270A/en
Application filed by Post Office filed Critical Post Office
Priority to GB4203860A priority patent/GB987611A/en
Priority to DEI18454A priority patent/DE1295508B/en
Publication of GB987611A publication Critical patent/GB987611A/en
Expired legal-status Critical Current

Links

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
    • B63C11/00—Equipment for dwelling or working underwater; Means for searching for underwater objects
    • B63C11/48—Means for searching for underwater objects
    • B63C11/50—Means for searching for underwater objects using grapnels

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Medicinal Preparation (AREA)

Abstract

987,611. Grapnels. POSTMASTER - GENERAL. March 6, 1962 [Dec. 6, 1960], No. 42038/60. Heading B7S. A submarine cable grapnel has cable prongs with cable engaging pulleys rotatably mounted at the roots thereof, an acoustic signal emitter, and means for causing the emitter to emit a signal on rotation of any one of the pulleys. In the embodiment of Figs. 1 and 2 the grapnel consists of two similar ports 1, 2 connected in tandem by a hinged link 3 and having on their housing 4 prongs 5 between which pulleys 6 are keyed on a shaft 7. 8 is a spring-loaded gate. Oppositely handed cams 9, 10 driven via freewheels 11, 12 from the shaft 7 actuate a resonator rod 25 when a cable is engaged by a pulley and rotates same. In the embodiment of Fig. 3 rotation of a pulley 6 turns a disc to operate a switch which actuates a battery-operated electric oscillator in the housing 4 connected to a transducer 41 (or 42). Specification 703, 782 is referred to.
GB4203860A 1959-07-31 1960-06-10 Improvements in or relating to grapnels for submarine cables Expired GB987611A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US3127270D US3127270A (en) 1959-07-31 New stilbene compounds
GB4203860A GB987611A (en) 1960-06-10 1960-06-10 Improvements in or relating to grapnels for submarine cables
DEI18454A DE1295508B (en) 1959-07-31 1960-07-19 Brighteners for cellulosic materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4203860A GB987611A (en) 1960-06-10 1960-06-10 Improvements in or relating to grapnels for submarine cables

Publications (1)

Publication Number Publication Date
GB987611A true GB987611A (en) 1965-03-31

Family

ID=10422542

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4203860A Expired GB987611A (en) 1959-07-31 1960-06-10 Improvements in or relating to grapnels for submarine cables

Country Status (1)

Country Link
GB (1) GB987611A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2192601A (en) * 1986-05-16 1988-01-20 Kokusai Denshin Denwa Co Ltd Underwater cable detector

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2192601A (en) * 1986-05-16 1988-01-20 Kokusai Denshin Denwa Co Ltd Underwater cable detector
GB2192601B (en) * 1986-05-16 1989-12-13 Kokusai Denshin Denwa Co Ltd Underwater cable detector

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