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US2844501A - Fire-retarding board - Google Patents

Fire-retarding board Download PDF

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Publication number
US2844501A
US2844501A US400594A US40059453A US2844501A US 2844501 A US2844501 A US 2844501A US 400594 A US400594 A US 400594A US 40059453 A US40059453 A US 40059453A US 2844501 A US2844501 A US 2844501A
Authority
US
United States
Prior art keywords
board
layer
layers
projections
wooden
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 - Lifetime
Application number
US400594A
Other languages
English (en)
Inventor
Jens C Snitker
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.)
SOREN CLAUSEN
Original Assignee
SOREN CLAUSEN
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 SOREN CLAUSEN filed Critical SOREN CLAUSEN
Application granted granted Critical
Publication of US2844501A publication Critical patent/US2844501A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B3/00—Devices or single parts for facilitating escape from buildings or the like, e.g. protection shields, protection screens; Portable devices for preventing smoke penetrating into distinct parts of buildings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B3/00—Hulls characterised by their structure or component parts
    • B63B3/14—Hull parts
    • B63B3/68—Panellings; Linings, e.g. for insulating purposes
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/92—Protection against other undesired influences or dangers
    • E04B1/94—Protection against other undesired influences or dangers against fire
    • E04B1/941—Building elements specially adapted therefor
    • E04B1/942—Building elements specially adapted therefor slab-shaped
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
    • E04C2/12—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products of solid wood
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
    • E04C2/24—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products laminated and composed of materials covered by two or more of groups E04C2/12, E04C2/16, E04C2/20
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/26—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
    • Y10T156/1056—Perforating lamina
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1089—Methods of surface bonding and/or assembly therefor of discrete laminae to single face of additional lamina
    • Y10T156/109—Embedding of laminae within face of additional laminae
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/18—Longitudinally sectional layer of three or more sections
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24752—Laterally noncoextensive components
    • Y10T428/2476—Fabric, cloth or textile component

Definitions

  • the invention relates to a fire-retarding board, which consists mainly of combustible material, preferably wooden material, with incombustible material inlaid.
  • the board is intended for use in the building industry to provide partitions, wall covering, and doors, but it is mainly intended for use in ships, notably passengercarrying ships, as fire-resisting bulkhead, known as the B-class bulkhead, which is designed to prevent iiames from spreading rapidly, if a fire arises.
  • the board according to the present invention may constitute the B-class bulkhead itself or part thereof, and it may also constitute the material, of which doors or hatches in the bulkhead are manufactured.
  • the object of the invention is to provide a tire-retarding board, which mainly consists of wood or wooden material, but nevertheless can prevent tire from penetrating through the board, at any rate for a certain length of time.
  • Another object is to provide a board which can be used in the same way as ordinary boards of furniture plywood and worked upon and shaped by conventional tools and machinery.
  • a further object is to provide a board of the kind in question, which will be strong and durable even under varying conditions as to moisture and heat.
  • Fig. 1 is a side-view of one embodiment
  • Figs. 2 and 3 are cross-sections of the same embodiment, on the lines il-ll and Ill-lil, respectively, in Fig. l,
  • Fig. 4 is a side-view of a second embodiment
  • Fig. 5 is a perspective view of one corner of the embodiment shown in Fig. 4,
  • Fig. 6 is a cross-section of the embodiment shown in Figs. 4 and 5
  • Fig. 7 is a third embodiment, in perspective, and
  • Fig. 8 is part of a wooden slat for this embodiment, also in perspective.
  • the fire-retarding board consists of three wooden layers 10, 12 and 14.
  • square projections 16 are provided at one side face, which projections are mutually interspaced on a regular pattern, as will be seen in Fig. 1, where said projections are shown dotted.
  • similar projections 13 are provided according to the same pattern, and are shown in dot-and-dash line in Fig. l.
  • the layers 10 and 14 may be made of a wooden sheet, in one side face of which cross-way grooves are cut, so that the aforesaid projections appear.
  • the said layers may also be constructed of an ordinary wooden sheet with plane-parallel side faces, to one of which there are glued low wooden blocks, which constitute the projections. In this case it is 'suitable that all blocks should have the same direction of fibre as the underlying sheet.
  • the layer 12 is a simple sheet with plane-parallel side faces.
  • a layer of incombustible material 20 has to be provided on the 'sides of the two outer layers 10 and 14, which carry theprojections 16 and 18.
  • This layer 20 must be of the same thickness as the projections, so that the latter penetrate the layer.
  • the incombustible material is suitably made up of asbestos.
  • lt may, for example, be formed of an asbestes sheet, in which square apertures are punched to correspond to the projections.
  • the said sheet 20 is glued tothe corresponding outer layer in such a way that the projections extend through the apertures in the sheet. It is also possible first to glue the asbestos sheet to the plane side face of the outer layer and thereupon to insert the blocks, which are to constitute the projections, in the apertures in the asbestos sheet, at the same time glueing them to the outer layer.
  • Another method of producing the layer of incombustible material is to use a pulp of asbestos libre, the fluid component of which is water-glass.
  • the pulp is spread over the side of the outer layer, on which the projections are provided, and the excess pulp is stripped off by moving a bar over the projections, so that the layer thickness becomes exactly equal to the height of the projections.
  • the water-glass acts as a weak, yet sufiicient, binding agent between the asbestos fibres themselves and between the libres and the wood.
  • After a suitable drying the three layers 10, 12 and 14 are glued together, e. g., with a synthetic resin glue, and the compound board is inserted in a glue press, where it remains for a ⁇ suitable period.
  • tireresistant substances may be used as incombustible material, e. g., inorganic substances, preferably of mineral origin, such as mica. It is expedient that the substance should be of a brous or laminated nature, so that good cohesion is imparted to its component parts when pressed, possibly in the presence of a ⁇ suitable binding agent, such as Waterglass. Furthermore, a fire-resistant substance with good thermal insulation properties is preferred. l
  • the direction of fibre in the layer 12 lforms an angle, e. g., a right angle, with the direction of fibre in the layers 10 and 14, which preferably have the same direction of libre.
  • the layer 12 will then act as an arresting layer.
  • thin wooden sheets 22 may be glued to either side of the compound board, the fibre directions of which coincide with that of the layer 12, and thus also act as arresting layers.
  • the board heretofore described possesses the quality that Wood is glued to wood in the process of assembling the individual layers, thus effecting a high degree of cohesion between these layers with the result that the compound board is comparable to ordinary boards of furniture plywood and can be used as such. Furthermore, an arbitrary line across the board will always cut through at least one layer of the incombustible material,
  • the embodiment shown in Figs. 4 and 5 is constructed of two wooden layers 24 and 26, in one side face of which there are provided wide grooves 28 and 30, respectively, which are illed with incombustible material, e. g. strips 32 and 34, respectively, which are cut from asbestos sheet. Between the grooves in each sheet there are provided narrow ribs 36 and 38, respectively.
  • the two wooden layers 24 and 26 with the asbestos-filled grooves 28 and 30 are placed against an intermediate wooden layer 40 and connected thereto, preferably by glueing, in such a way that the ribs of the outermost layers are displaced in relation to each other.
  • the grooves 28 and 30 in the layers 24 and 26, respectively are low and that the intermediate layer 40y is thin.
  • radiant heat which penetrates a rib 36 or 38 as obliquely as possible in relation to 'the normal on the board, will always hit the incornbustible material formed by the asbestos strip 32 or 34 in the opposite outer layer. This can be seen in Fig. 6 at the line b-b.
  • the layer 40 is designed as an arresting layer.
  • the sheets 42 and 44 which are glued to the outer sides of the compound board.
  • the layers 24 and 26 are preferably constructed in the following Way:
  • a number of kiln-dried deal boards are glued together with the side surfaces toward each other in such a way that right faces right and wrong faces wrong.
  • the block thus formed is cut up in the direction perpendicular to the glued side faces in sheets, which may have a thickness of, e. g., 9 millimetres.
  • In one side face of these sheets there are cut grooves, e. g., 50 millimetres Wide and 1.5 mm. deep, the ydistance between each of which is 6 millimetres.
  • the glue joints between the boards are denoted with the numeral 46.
  • the board is constructed of wooden slats 48, which are glued together edge to edge. At its side edges each slat is provided with grooves of different depths. As will be seen from Fig. 8, a low groove is provided at the uppermost part of the left side edge of the slat and a deeper groove ⁇ S2 at the lowermost part. At the uppermost part of the right side edge there is provided a deep groove 54 and at the lowermost part a low groove 56.
  • the grooves S0 and S4 are on the same plane, and the same 'applies to the grooves 52 and 56. Between the grooves 50 and 54 a narrow bridge 58 is provided in the wooden material, and between the grooves 52 and 56 there is another narrow bridge 60, which is displaced in relation to the former.
  • iucombustible material e. g., asbestos strips 62
  • the strips 62 are suitably glued to the channels.
  • the groove arrangement described in the foregoing may be provided on more than two different planes, if so desired.
  • an arresting layer 64 may be glued and on top thereof a covering layer 66, the fibres of which preferably extend parallel tothe longitudinal direction of the slats 48.
  • a fire-retarding board consisting of slats of wooden material, having at their side edges grooves of different depths, so arranged that channels will be formed when the slats are joined edge to edge, said channels being so disposed on at least two different planes that the channels on one plane are displaced in relation to the channels on the other plane, said channels enclosing strips of asbestos.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Electromagnetism (AREA)
  • Physics & Mathematics (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Laminated Bodies (AREA)
  • Building Environments (AREA)
US400594A 1952-12-30 1953-12-28 Fire-retarding board Expired - Lifetime US2844501A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK750242X 1952-12-30
DK351742X 1956-10-05

Publications (1)

Publication Number Publication Date
US2844501A true US2844501A (en) 1958-07-22

Family

ID=26068257

Family Applications (1)

Application Number Title Priority Date Filing Date
US400594A Expired - Lifetime US2844501A (en) 1952-12-30 1953-12-28 Fire-retarding board

Country Status (7)

Country Link
US (1) US2844501A (xx)
BE (1) BE521759A (xx)
CH (1) CH351742A (xx)
FI (1) FI28421A (xx)
FR (1) FR1087990A (xx)
GB (1) GB750242A (xx)
NL (1) NL89682C (xx)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3199481A (en) * 1961-12-18 1965-08-10 Midwest Canvas Corp Insulating article
US4702054A (en) * 1986-11-24 1987-10-27 Turner Terry A Door with raised panels
US4704834A (en) * 1986-11-24 1987-11-10 Turner Terry A Raised panel-style door
SE544168C2 (sv) * 2018-10-30 2022-02-15 Viklund Soeren Förfarande för att brandskydda konstruktionselement

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7914323U1 (de) * 1979-05-17 1979-08-16 Vki-Rheinhold & Mahla Ag, 6800 Mannheim Feuerbestaendige bauteile mit thermisch gesteuertem abschottungseffekt
AT379845B (de) * 1980-08-27 1986-03-10 Tarkett Ab Platte oder stab, insbesondere fuer fussboeden
WO2000003100A1 (de) * 1998-07-10 2000-01-20 'dana' Türenindustrie Gesellschaft Mbh Mehrlagiger brandschutzbauteil

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1987506A (en) * 1933-01-23 1935-01-08 Reconstruction Finance Corp Fire resistant veneered panel
US2065045A (en) * 1933-04-25 1936-12-22 Broback Juel Irvin Construction material
US2401281A (en) * 1942-04-10 1946-05-28 Oscar H Webb Composite structure
US2428325A (en) * 1942-10-30 1947-09-30 Owens Corning Fiberglass Corp Reinforced plywood

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1987506A (en) * 1933-01-23 1935-01-08 Reconstruction Finance Corp Fire resistant veneered panel
US2065045A (en) * 1933-04-25 1936-12-22 Broback Juel Irvin Construction material
US2401281A (en) * 1942-04-10 1946-05-28 Oscar H Webb Composite structure
US2428325A (en) * 1942-10-30 1947-09-30 Owens Corning Fiberglass Corp Reinforced plywood

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3199481A (en) * 1961-12-18 1965-08-10 Midwest Canvas Corp Insulating article
US4702054A (en) * 1986-11-24 1987-10-27 Turner Terry A Door with raised panels
US4704834A (en) * 1986-11-24 1987-11-10 Turner Terry A Raised panel-style door
SE544168C2 (sv) * 2018-10-30 2022-02-15 Viklund Soeren Förfarande för att brandskydda konstruktionselement

Also Published As

Publication number Publication date
GB750242A (en) 1956-06-13
FR1087990A (fr) 1955-03-02
FI28421A (fi) 1956-06-11
CH351742A (de) 1961-01-31
BE521759A (xx)
NL89682C (xx)

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