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GB796297A - Improvements in or relating to lifeboats - Google Patents

Improvements in or relating to lifeboats

Info

Publication number
GB796297A
GB796297A GB34252/55A GB3425255A GB796297A GB 796297 A GB796297 A GB 796297A GB 34252/55 A GB34252/55 A GB 34252/55A GB 3425255 A GB3425255 A GB 3425255A GB 796297 A GB796297 A GB 796297A
Authority
GB
United Kingdom
Prior art keywords
resin
hull
glass
layers
layer
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
GB34252/55A
Inventor
William John Stevenson
James Keith Williamson
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.)
MECHANS Ltd
Original Assignee
MECHANS Ltd
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 MECHANS Ltd filed Critical MECHANS Ltd
Priority to GB34252/55A priority Critical patent/GB796297A/en
Publication of GB796297A publication Critical patent/GB796297A/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 
    • B63B43/00—Improving safety of vessels, e.g. damage control, not otherwise provided for
    • B63B43/02—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking
    • B63B43/10—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking by improving buoyancy
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
    • B29C70/86—Incorporated in coherent impregnated reinforcing layers, e.g. by winding
    • B29C70/865—Incorporated in coherent impregnated reinforcing layers, e.g. by winding completely encapsulated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B5/00—Hulls characterised by their construction of non-metallic material
    • B63B5/24—Hulls characterised by their construction of non-metallic material made predominantly of plastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
    • B63B73/70—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms characterised by using moulds; Moulds or plugs therefor
    • B63B73/72—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms characterised by using moulds; Moulds or plugs therefor characterised by plastic moulding, e.g. injection moulding, extrusion moulding or blow moulding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3067—Ships
    • B29L2031/307—Hulls

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Composite Materials (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Reinforced Plastic Materials (AREA)
  • Laminated Bodies (AREA)

Abstract

796,297. Moulded plastic boats. MECHANS, Ltd. Nov. 30, 1956 [Nov. 30, 1955], No. 34252/55. Class 113. A lifeboat is constructed of reinforced synthetic resinous material comprising a moulded hull having buoyant bodies, e.g., buoyancy tanks 14 integrated therewith in the course of the moulding operation. The material used consists of a suitable resin and filling, e.g., a polyester resin with a glass fibre filling. The shell is formed in a female mould by applying resin which after gelling is covered by a layer of glass scrim cloth 10 impregnated with resin. The hull after the initial set is built up by layers 11, 12 and 13 each formed of a screed of glass or other reinforcing fibres impregnated with resin. The sides top and web ends of the buoyancy tanks are formed over a pattern from a first layer 23 of resin impregnated glass scrim cloth and two succeeding layers 24 and 25 of glass or other reinforcing fibres impregnated with resin, the top and face having wood core stiffeners 19-20 overlaid with layers 21 and 22 bonding same into position. Each top surface is provided with a recess to accommodate the end of a thwart. The tank components thus formed are placed in position in the hull in end to end abutting relationship along each side, the hull forming the closure to each tank. A layer 58 is applied to bond the tanks into position. Provision tanks and thwarts are similarly moulded and bonded into position in the hull. The deck and bulkhead sections 46 are formed over a pattern, similarly moulded as the buoyancy tank components, raised stiffeners 48 and 49 being provided in deck 47. A wooden keel is inserted in the keel section and layers 55 and 56 applied. Layer 59 is applied over all and the integral hull is cured.
GB34252/55A 1955-11-30 1955-11-30 Improvements in or relating to lifeboats Expired GB796297A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB34252/55A GB796297A (en) 1955-11-30 1955-11-30 Improvements in or relating to lifeboats

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB34252/55A GB796297A (en) 1955-11-30 1955-11-30 Improvements in or relating to lifeboats

Publications (1)

Publication Number Publication Date
GB796297A true GB796297A (en) 1958-06-11

Family

ID=10363314

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34252/55A Expired GB796297A (en) 1955-11-30 1955-11-30 Improvements in or relating to lifeboats

Country Status (1)

Country Link
GB (1) GB796297A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3154460A (en) * 1960-02-29 1964-10-27 William R Graner Anti-fouling coating
US3194707A (en) * 1960-08-19 1965-07-13 Mcnae Gordon Spencer Method of applying a bonded skin or covering to a surface to render it water-tight

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3154460A (en) * 1960-02-29 1964-10-27 William R Graner Anti-fouling coating
US3194707A (en) * 1960-08-19 1965-07-13 Mcnae Gordon Spencer Method of applying a bonded skin or covering to a surface to render it water-tight

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