US3783567A - Glazing strip - Google Patents

Glazing strip Download PDF

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Publication number
US3783567A
US3783567A US00113063A US3783567DA US3783567A US 3783567 A US3783567 A US 3783567A US 00113063 A US00113063 A US 00113063A US 3783567D A US3783567D A US 3783567DA US 3783567 A US3783567 A US 3783567A
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US
United States
Prior art keywords
glazing
construction
glass
strips
timber
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
US00113063A
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English (en)
Inventor
W Ollis
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.)
TIMBER RES AND DEV ASS
Original Assignee
TIMBER RES AND DEV ASS
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 TIMBER RES AND DEV ASS filed Critical TIMBER RES AND DEV ASS
Application granted granted Critical
Publication of US3783567A publication Critical patent/US3783567A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
    • E06B5/10—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
    • E06B5/16—Fireproof doors or similar closures; Adaptations of fixed constructions therefor
    • E06B5/165—Fireproof windows
    • 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
    • E04B1/943—Building elements specially adapted therefor elongated
    • E04B1/944—Building elements specially adapted therefor elongated covered with fire-proofing material
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/68—Window bars

Definitions

  • ABSTRACT This invention is a grooved glazing strip of noncombustible, poor heat-conducting material for enabling a glazed timber panel to have good resistance against fire spreading from one side to the other.
  • the glazing strip can prevent heat being convected through the panel and may have a coating which expands when heated to seal any gapswhich appear following distortion or burning of the timber.
  • This invention relates to a glazing strip for fixing fire resistant glass into timber or other frames which can be charred or otherwise depleted by fire and an object is to provide a strip which enables a timber-framed window, glazed screen or glass door for example, to have good overall resistance against the spread of fire from one side to the other.
  • Timber is a desirable structural material because it can give a naturally decorative effect quite economically and it is clearly advantageous if a method can be found of using timber while providing means for rendering a glazed panel much more resistant to fire spreading than would normally be the case with such a material.
  • glazing strip is formed of a non-combustible and poor heat conducting material with a groove for the accommodation of a sheet of glass.
  • the material conveniently carries on external surfaces a coating which swells when heated.
  • the coating could be on all surfaces of the section of the strip, but is preferably at least on the internal surfaces of the groove.
  • a fire starts on one side of a glazed panel embodying glazing strips according to the invention the heat will cause the material to swell so that it will fill-cracks as they occur due to deformation of the glass or the timber or other framework to prevent flue effects and restrict the transfer of heat to the other side of the panel, and also to maintain the glass firmly held in the groove even if the groove deforms.
  • the material is one which is also deformable at ambient temperatures so that when the glass is inserted in the groove a good snug fit can be ensured by reason of the deformable material between the groove and the glass.
  • One form of glazing strip has double grooves for double glazing, and then it is possible to include between the grooves means which will generate smoke when heated so that when a fire starts on one side of the panel even if one glass cracks the heat will cause smoke to be generated between the sheets of glass and this will restrict radiation of heat to the other side.
  • the face of the strip opposite the grooved face could be plane, or stepped, foreasy insertion in the reveals of a timber frame.
  • a panel is assembled with a sheet of glass in a local frame built up from theglazing strip and with clearance between the edges of the glass and the bottom of the grooves in the strip.
  • the local frame consisting of the glass in the glazing strip can then be inserted in the timber framework of a door, window or other panel.
  • the cross section of a local frame is preferably rectilinear so that where the strips meet at corners a tight butt joint can easily be made.
  • FIGS. 1A, 1B, and 1C are cross-sectional views of three samples of strip embodying the invention.
  • FIG. 2A shows details of a typical frame
  • FIG. 2B is a sectional view taken along line 2B2B of FIG. 2A;
  • FIG. 2C is a sectional view showing a strip of the frame which mounts a glass panel to a timber frame;
  • FIG. 2D is a sectional view showing frame strips which mount glass panels to a timber frame
  • FIGS. 3A and 3B show progressive effects of the frame in FIG. 2 due to a fire starting on one side of the panel;
  • FIG. 4 is a view similar to FIG. 3 but with a double glazing arrangement
  • FIGS. 5A, 5B and 5C are cross-sectional views of three alternative methods of mounting the local frame.
  • the way in which the strip is used is now described in relation to a particular application involving wired plate glass, a timber frame and a strip made of fibrereinforced gypsum or asbestos with a single groove and dipped in intumescent emulsion paint.
  • the section may be any of those shown in FIGS. 1A, 1B and 1C, and it may be in one piece as shown or may be built up from two or three pieces secured together.
  • Two strips 11 are cut with square ends and a length corresponding to that of the top or bottom edge of the glass (when fixed) plus twice the overall depth of a bead.
  • Two other strips 12 are cut with square ends and a length corresponding with that of a vertical edge of the glass when fixed, less about 16 m/m.
  • the strips are fitted onto the edges of the glass 13 as shown in FIG. 2A, so that (a) the strips abut tightly at the corners and (b) there is a gap of about 3 m/m between the edges of the glass and the back-faces of the grooves 15, in the case of the vertical strips, and of about 6 m/m in case of the top horizontal strip W.
  • the intumescent plastic coating 14 will ensure (a) that there is a tight but compliant fit between the edges of the glass and the side faces of the grooves so that i. the strips will stay in position when the glass is fixed into the frame,
  • thermal expansion of the glass will not break this seal or cause excessive stresses in the glass or frame because there is a gap between the glass and the back face of the channel around three edges of the glass, and (b) that where the butt joints occur one of the abutting faces will be coated with intumescent material.
  • the glass together with the strips which have been applied to its edges is then inserted into the reveals of the timber frame 16 to stop against a timber cover trim 17, with splayed edges, provided on the far side.
  • the glazing strips are secured to the frame on both sides of the glass by means of screws 18 in holes 19 in the strip as shown in FIG. 2C.
  • a timber trim 21 shown in FIG. 2D, with splayed edges, is then secured to the front faces of the timber frame to cover most of the exposed side face of the glazing strip or, in the case of a mullion or transom member of the frame, to cover the exposed side faces of glazing strip applied to adjacent sheets of glass.
  • FIGS. 3A and 3B The way in which the strip performs its function in fire conditions is now described with reference to FIGS. 3A and 3B in relation to two adjacent sheets of glass fixed as above with particular reference to the behaviour of a mullion 16 between them.
  • the wired glass 13 will expand particularly on the side exposed to thefire and it will crack, but the cracks are likely to be fewer because the glazing strips 11 are designed to accommodate thermal expansion.
  • the special glazing strip not only provides a barrier to such conduction but in conjunction with a splayed timber trim 17 slightly retracted at 23 from the area of the glazing strip it masks to a considerable extent the timber on the side of the glass away from the fire, from the effects of radiant heat.
  • the wired glass After a considerable period of fire exposure, the wired glass will begin to become molten, deform and sag.
  • the sheet 32 nearest the fire will crack at an early stage, but cracking of the second sheet 33 is likely to be delayed for a considerable period.
  • the chemicals deposited in the shallow channel 31 emit dense smoke into the cavity between the sheets which considerably reduce the transmission of radiant-heat through the double glazing.
  • FIGS. 5A, 5B and 5C each show different types of timber frames 16a, 16b and 16c to which a-single or double window frame is mounted.
  • the advantages claimed for the fire resistant glazing strips described, when incorporated in constructions referred to, are that naturally decorative structural materials such as timber can economically be used in comparatively slender sections to provide barriers to the spread and effects of fire for long periods of time in situations where it is desirable to have through visibility.
  • the strip designed to accommodate a form of double glazing is claimed to provide a barrier to radiant heat of unusual effectiveness as far as glazed constructions are concerned.
  • FIG. 5 Some alternative mullion or transom profiles incorporating the glazing strips are shown in FIG. 5.
  • a window frame construction having elongated glazing strips and timber frame members, said glazing strips being formed of non-combustible poor heatconducting, and thermally stable, material supported by said frame members and having an elongated groove accommodating a sheet of glass, said glazing strips being secured to said timber frame members on both sides of said sheet of glass by means of threaded fasteners, and said glazing strips having a surface coating of intumescent plastic material which, when heated,
  • each said strip is of integral construction.
  • each glazing has double grooves for double glazing.
  • each of said strips is comprised of reinforced gypsum.

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Securing Of Glass Panes Or The Like (AREA)
  • Special Wing (AREA)
  • Building Environments (AREA)
  • Joining Of Glass To Other Materials (AREA)
  • Laminated Bodies (AREA)
US00113063A 1968-06-11 1971-02-05 Glazing strip Expired - Lifetime US3783567A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB27661/68A GB1220404A (en) 1968-06-11 1968-06-11 Glazing strip

Publications (1)

Publication Number Publication Date
US3783567A true US3783567A (en) 1974-01-08

Family

ID=10263211

Family Applications (1)

Application Number Title Priority Date Filing Date
US00113063A Expired - Lifetime US3783567A (en) 1968-06-11 1971-02-05 Glazing strip

Country Status (6)

Country Link
US (1) US3783567A (enrdf_load_stackoverflow)
BE (1) BE734430A (enrdf_load_stackoverflow)
DE (1) DE1929178A1 (enrdf_load_stackoverflow)
FR (1) FR2010686A1 (enrdf_load_stackoverflow)
GB (1) GB1220404A (enrdf_load_stackoverflow)
NL (1) NL6908840A (enrdf_load_stackoverflow)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4424653A (en) 1980-10-10 1984-01-10 Heinen Hans Dieter Fire-proof window
US4637182A (en) * 1986-04-07 1987-01-20 Algoma Hardwoods, Inc. Windowed fire door
US4783945A (en) * 1980-11-25 1988-11-15 Portas Deutschland Gmbh Furniture front element
US7059092B2 (en) * 2002-02-26 2006-06-13 Washington Hardwoods Co., Llc Fire-resistant wood assemblies for building
US20090205271A1 (en) * 2008-02-19 2009-08-20 Andre Fortin Fire-rated light kit
US20200173168A1 (en) * 2017-01-16 2020-06-04 Saint-Gobain Glass France Smoke barrier system
US20230323660A1 (en) * 2022-04-11 2023-10-12 United States Gypsum Company Building with noncombustible exterior structural wall
US20230332400A1 (en) * 2022-04-14 2023-10-19 Tenmat Limited Relating to fire rated movement joints

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1263250B (de) * 1966-07-02 1968-03-14 Abc Elektrogeraete Volz K G Babykostwaermer fuer Milchflaschen und Fertigkostglaeser
NL7205481A (enrdf_load_stackoverflow) * 1971-04-30 1972-11-01
DE2751424A1 (de) * 1977-11-17 1979-05-23 Schoerghuber Ohg Glasscheibenhalterung fuer tueren
FR2501278A1 (en) * 1981-03-04 1982-09-10 Saint Gobain Vitrage Heat resistant glazing with peripheral seal of intumescent silicate - to improve ISO fire resistant ratings compared with use of plain silicone rubber seals (NO 27.9.82)
DE3203178C2 (de) * 1982-01-30 1984-11-15 Gebr. Gieseler Gmbh, 3000 Hannover Fenster aus einem Rahmen aus im wesentlichen nicht feuerwiderstandsfähigem Material und einer Glasscheibe
DE8712476U1 (de) * 1987-09-15 1987-10-29 Kreft, Ulrich, 4970 Bad Oeynhausen Aufsetzkranz für eine Lichtkuppel
GB2245016A (en) * 1990-06-01 1991-12-18 Cape Building Prod Ltd Moulding
FR2708660B1 (fr) * 1993-08-03 1995-10-20 Menbat Fenêtre à haute résistance au feu.
GB9320017D0 (en) * 1993-09-28 1993-11-17 J J R Services Limited A method and apparatus for retaining a panel within an aperture
GB2351113B (en) * 1999-06-18 2003-05-07 Granada Secondary Glazing Ltd Secondary glazed windows

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US621542A (en) * 1899-03-21 sheppard
US1739754A (en) * 1926-04-13 1929-12-17 Thomas J Foster Building construction
US2341906A (en) * 1942-04-16 1944-02-15 Spencer E Cowbourne Door and window frame
GB805954A (en) * 1956-09-13 1958-12-17 Konstantin Miebach Improvements in means for mounting a panel of glass or the like in a frame
CA569891A (en) * 1959-02-03 W. Mod George Flame resistant coating containing finely dispersed intumescing particles in a thermoplastic film
US2910739A (en) * 1956-01-28 1959-11-03 S O S B Skod I S Frames for fire-retarding and fire-proof doors
FR1280800A (fr) * 1960-11-30 1962-01-08 Fenêtre à nid d'abeilles
US3167823A (en) * 1961-11-20 1965-02-02 Dow Chemical Co Panel mounting structure
US3404499A (en) * 1967-03-06 1968-10-08 West End Table Company Inc Window construction
US3426491A (en) * 1966-04-01 1969-02-11 Basf Ag Fire-resisting doors with expandable seal means including a thermal conductor
US3543460A (en) * 1968-02-22 1970-12-01 Basf Ag Fire-resistant composite elements containing internal layers of expanded plastics

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US621542A (en) * 1899-03-21 sheppard
CA569891A (en) * 1959-02-03 W. Mod George Flame resistant coating containing finely dispersed intumescing particles in a thermoplastic film
US1739754A (en) * 1926-04-13 1929-12-17 Thomas J Foster Building construction
US2341906A (en) * 1942-04-16 1944-02-15 Spencer E Cowbourne Door and window frame
US2910739A (en) * 1956-01-28 1959-11-03 S O S B Skod I S Frames for fire-retarding and fire-proof doors
GB805954A (en) * 1956-09-13 1958-12-17 Konstantin Miebach Improvements in means for mounting a panel of glass or the like in a frame
FR1280800A (fr) * 1960-11-30 1962-01-08 Fenêtre à nid d'abeilles
US3167823A (en) * 1961-11-20 1965-02-02 Dow Chemical Co Panel mounting structure
US3426491A (en) * 1966-04-01 1969-02-11 Basf Ag Fire-resisting doors with expandable seal means including a thermal conductor
US3404499A (en) * 1967-03-06 1968-10-08 West End Table Company Inc Window construction
US3543460A (en) * 1968-02-22 1970-12-01 Basf Ag Fire-resistant composite elements containing internal layers of expanded plastics

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4424653A (en) 1980-10-10 1984-01-10 Heinen Hans Dieter Fire-proof window
US4783945A (en) * 1980-11-25 1988-11-15 Portas Deutschland Gmbh Furniture front element
US4637182A (en) * 1986-04-07 1987-01-20 Algoma Hardwoods, Inc. Windowed fire door
US8069625B2 (en) 2002-02-26 2011-12-06 Washington Hardwoods Co., Llc Fire-resistant frame assemblies for building
US7059092B2 (en) * 2002-02-26 2006-06-13 Washington Hardwoods Co., Llc Fire-resistant wood assemblies for building
US7487591B2 (en) 2002-02-26 2009-02-10 Washington Hardwoods Co., Llc Method of constructing a fire-resistant frame assembly
US20090133344A1 (en) * 2002-02-26 2009-05-28 Washington Hardwoods Co., Llc Fire-resistant frame assemblies for building
US20090205271A1 (en) * 2008-02-19 2009-08-20 Andre Fortin Fire-rated light kit
US7921614B2 (en) 2008-02-19 2011-04-12 Lexington Manufacturing, Inc. Fire-rated light kit
US20200173168A1 (en) * 2017-01-16 2020-06-04 Saint-Gobain Glass France Smoke barrier system
US20230323660A1 (en) * 2022-04-11 2023-10-12 United States Gypsum Company Building with noncombustible exterior structural wall
US20230332400A1 (en) * 2022-04-14 2023-10-19 Tenmat Limited Relating to fire rated movement joints
US11946247B2 (en) * 2022-04-14 2024-04-02 Tenmat Limited Relating to fire rated movement joints

Also Published As

Publication number Publication date
BE734430A (enrdf_load_stackoverflow) 1969-11-17
FR2010686A1 (enrdf_load_stackoverflow) 1970-02-20
DE1929178A1 (de) 1969-12-18
NL6908840A (enrdf_load_stackoverflow) 1969-12-15
GB1220404A (en) 1971-01-27

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