GB138785A - Improvements in or relating to means for raising and lowering boats - Google Patents

Improvements in or relating to means for raising and lowering boats

Info

Publication number
GB138785A
GB138785A GB11450/19A GB1145019A GB138785A GB 138785 A GB138785 A GB 138785A GB 11450/19 A GB11450/19 A GB 11450/19A GB 1145019 A GB1145019 A GB 1145019A GB 138785 A GB138785 A GB 138785A
Authority
GB
United Kingdom
Prior art keywords
boat
davits
davit
cable
chocks
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
GB11450/19A
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.)
JOHANNES JACOBUS MAASKAMP
Original Assignee
JOHANNES JACOBUS MAASKAMP
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 JOHANNES JACOBUS MAASKAMP filed Critical JOHANNES JACOBUS MAASKAMP
Priority to GB11450/19A priority Critical patent/GB138785A/en
Publication of GB138785A publication Critical patent/GB138785A/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 
    • B63B23/00—Equipment for handling lifeboats or the like
    • B63B23/62—Fastening or storing of boats on deck
    • B63B23/66—Blocks; Chocks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B23/00—Equipment for handling lifeboats or the like
    • B63B23/02—Davits, i.e. devices having arms for lowering boats by cables or the like
    • B63B23/04—Davits, i.e. devices having arms for lowering boats by cables or the like with arms pivoting on substantially horizontal axes, e.g. gravity type
    • B63B23/06—Davits, i.e. devices having arms for lowering boats by cables or the like with arms pivoting on substantially horizontal axes, e.g. gravity type with actual pivots

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)

Abstract

138,785. Maaskamp, J. J. May 7,1919. Boat raising and lowering gear; davits; chocks. -Relates to gear in which the davits are luffed by sliding bars operated by the winch for the boat-supporting cable and consists in providing the davits with a clamp which grips the gunwale of the boat when on the chocks under the influence of the tension in the cable. The davits are pivoted in the plane of the boarding and are additionally supported in the outboard position by pivoted bars. The boat 1, Fig. 1, rests on cleats 2 between davits 3 which are pivoted at 4 and slotted at 7 so that the part 6 may slide in the slot and support the davit in the outboard position. Driven by the winch gear is a pinion 23 which gears with a rack 24 on a slide-rod 25, the latter when moved outward pushes the davit past its dead centre, the boat being lifted off its chocks. At the same time, the winch pays out the cable until the davit is full out, and finally the boat is lowered. The top of each davit carries a journal 9, Fig. 3, from which depend two lugs 10 carrying a pulley 11, and on which also is a cramp or brake 12 in proximity to or contact with the gunwale 13. The cable attached to a ring 14 on the boat passes over the pulley 11, thence over guide-pulleys 16, 17 to the winch or winches. When the boat is on the chocks, the tension on the cable pulls the cramp 12 into contact with the gunwale 13 and holds the boat firmly. The boarding is recessed to take the davit when slung inboard.
GB11450/19A 1919-05-07 1919-05-07 Improvements in or relating to means for raising and lowering boats Expired GB138785A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB11450/19A GB138785A (en) 1919-05-07 1919-05-07 Improvements in or relating to means for raising and lowering boats

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB11450/19A GB138785A (en) 1919-05-07 1919-05-07 Improvements in or relating to means for raising and lowering boats

Publications (1)

Publication Number Publication Date
GB138785A true GB138785A (en) 1920-02-19

Family

ID=9986471

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11450/19A Expired GB138785A (en) 1919-05-07 1919-05-07 Improvements in or relating to means for raising and lowering boats

Country Status (1)

Country Link
GB (1) GB138785A (en)

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