EP0203796A2 - Elément formant - Google Patents

Elément formant Download PDF

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Publication number
EP0203796A2
EP0203796A2 EP86303952A EP86303952A EP0203796A2 EP 0203796 A2 EP0203796 A2 EP 0203796A2 EP 86303952 A EP86303952 A EP 86303952A EP 86303952 A EP86303952 A EP 86303952A EP 0203796 A2 EP0203796 A2 EP 0203796A2
Authority
EP
European Patent Office
Prior art keywords
bead
soffit
arch
frame section
fascia
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.)
Withdrawn
Application number
EP86303952A
Other languages
German (de)
English (en)
Other versions
EP0203796A3 (fr
Inventor
Christopher Guy Perry
David Graham Perry
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.)
TRULINE GROUP Ltd
Original Assignee
TRULINE GROUP 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 TRULINE GROUP Ltd filed Critical TRULINE GROUP Ltd
Publication of EP0203796A2 publication Critical patent/EP0203796A2/fr
Publication of EP0203796A3 publication Critical patent/EP0203796A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/02—Coverings or linings, e.g. for walls or ceilings of plastic materials hardening after applying, e.g. plaster
    • E04F13/04—Bases for plaster
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C2003/023—Lintels
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/02—Coverings or linings, e.g. for walls or ceilings of plastic materials hardening after applying, e.g. plaster
    • E04F13/04—Bases for plaster
    • E04F13/06—Edge-protecting borders
    • E04F2013/061—Edge-protecting borders for arched or curved edges

Definitions

  • This invention relates to formers, particularly formers for forming the shape of an arched (or otherwise curved) opening of predetermined curvature, and providing a keying surface for plaster, render or similar material.
  • formers are herein called “arch frames”.
  • arch frames are pre-formed or pre-fabricated, self-supporting units, e.g. composed of 2, 4 or more components or sections, and are usually mounted in a rectangular or irregularly shaped opening so as to form a somewhat "false" wall at least over extensive void regions (e.g. at the upper corners of the rectangular opening) and provide the opening with the desired curvature. They are thus quite different to the customary edge beads that follow the edge contour of an existing arched opening and reinforce the plastered or rendered edge.
  • the primary function of the bead is to provide a so-called "ground” or "stop” for the plaster or render material, and that where (as is usual) the selfsame bead is to serve both for the material applied to the soffit and for the material applied to the fascia, the bead should preferably be at substantially the same angle of about 135° to each of the fascia and the soffit.
  • the present invention aims to overcome some or all of above-mentioned and/or other difficulties of the relevant prior art.
  • an arch-frame section comprising a fascia member, a soffit member, and a bead, characterised in that one of the said members is formed integrally with the bead by perforating a metal strip such as to provide first, second and third regions alongside one another, the first region being perforated to provide said one member and a there-adjacent edge portion of the bead , the second region being imperforate to provide a smooth surfaced nose portion of the bead, and the third region being perforated to provide said bead with an opposite edge portion adjacent the other said member.
  • perforating a metal strip implies an operation whereby material is physically removed from the plane of the strip; and the terms “perforated” and “perforations” relate to the result of such a “perforating” operation.
  • the said one member may be the fascia member.
  • the said one member is the soffit member.
  • the fascia member and the soffit member may be connected to one another directly, or alternatively may be connected to the said opposite edges of the bead so as to be interconnected via the bead.
  • an arch-frame section comprising:
  • an arch-frame section comprising a fascia member, a soffit member, and a bead, wherein the bead is provided with side portions extending away from one another as they extend away from the "nose" of the bead, and the soffit member is formed integrally with the bead by perforating a metal strip such as to provide perforations in the soffit and in the side portion of the bead neighbouring the soffit, the said nose being left imperforate to provide a smooth surfaced nose portion of the bead.
  • the fascia member is spaced from the other side portion of the bead.
  • the other side portion of the bead may be perforated. In each case this is to permit plaster or render to enter the void within the bead for reinforcement of the bead and for interconnection of the plaster or render on the fascia member and the soffit member.
  • an arch-frame section comprising a fascia member, a soffit member, and a bead, wherein the bead is provided with side portions extending away from one another as they extend away from the "nose" of the bead, and the bead is formed by perforating a metal strip such as to provide perforations in the two side portions of the bead, the said nose being left imperforate to provide a smooth surfaced nose portion of the bead.
  • the soffit member is connected to one side portion of the bead and also to the fascia member.
  • the fascia member is connected to one side portion of the bead and the soffit member is connected to the other side portion of the bead.
  • the soffit member and/or the fascia member may be either of perforated metal strip or of expanded metal.
  • the present invention also provides for an arch frame comprising a plurality of arch-frame sections according to any of the aforesaid aspects of this invention.
  • the arch frame is made up on site from four, similar, pre-formed arch frame corner sections 10.
  • Each section 10 comprises a fascia member 20 and a combined soffit-and-bead member 30.
  • Each fascia member 20 has a vertical flat wall 22 (see Fig.2) and, at right-angles thereto, an integral flange 24 formed from a selvedge region of the fascia and following a curved path of the desired predetermined curvature for the archway opening 25.
  • the fascia member 20 is formed by appropriately bending or shaping either a perforated metal sheet or an expanded metal sheet (be the latter pre-flattened or not), e.g. having openings from 6 to 20mm (preferably 7.87mm) by from 3 to 8mm (preferably 3.81mm).
  • this shaping is accomplished by clamping two such sheets between a pair of plates 128,129 (Fig.3) with the margins of the sheets projecting beyond surfaces 130,131 of the plates, these surfaces having the desired predetermined curvature.
  • the overlapping margins are then "opened out” and flattened onto the surfaces 130,131 by means of a roller 135 that is passed back and forth to compress the margins 24 against the surfaces 130,131 and cause them to adopt the latters' outline.
  • the combined soffit-and-bead member 30 is formed by stamping an appropriate array of apertures 34 in a strip of sheet metal to provide first, second and third regions 31,32 and 33 alongside one another, and respectively perforate, imperforate and perforate (see Fig.4).
  • the first region 31 is perforated and is to provide the soffit 35 and a soffit-adjacent edge portion 36 of the bead 38.
  • the second region 32 is imperforate and is to provide a smooth-surfaced nose portion 37 of the bead 38.
  • the third region 33 is perforated to provide the bead 38 with a facsia-adjacent edge portion 39.
  • the three-region perforated strip is cut to the desired size and passed through a lock forming machine or other bending machine to effect shaping of the member 30.
  • Such shaping provides bead 38 and the soffit wall 35 with their desired predetermined curvatures, the curvature of the soffit wall 35 conforming to that of the fascia selvedge 24.
  • the two members 20 and 30 are then brought together with selvedge 24 overlying soffit 38 and with the free upstanding marginal region 33 abutting against the outside of the fascia wall 22. In this position, the two members 20 and 30 are then jointed to one another, e.g. by welding or (as is preferred) by stapling (preferably in a so-called stitching machine). The jointing of the two parts is performed over the abutting surfaces of selvedge 24 and soffit 35.
  • the stamped-out apertures 34 of the above-described embodiment are all of the same square shape and, in this non-limiting example, have a side length of the order of about 4mm and a metal strand width (between adjacent square-shaped apertures) of the order of about 1.5mm.
  • the apertures 34 need be neither of the square shape illustrated nor of the dimensions described - they can, for example, be diamond or lozenge-shaped rather than square, and have quite different side length dimensions and/or density (i.e. ratio of metal strands to voids).
  • the apertures 34 need not be of the same shape and/or size and/or density (i.e. metal-to-voids ratio) in both regions 31 and 33, and indeed, need not be of the same shape and/or size and/or density throughout the wider soffit-forming region 31.
  • the four identical, pre-fabricated and self-supporting, arch-frame sections 10 are in use offered up to the opening 40 (Fig.1) provided through a masonry wall, this opening being usually rectangular in front elevation.
  • the four sections 10 are then fixed in position, e.g. using masonry nails, the soffit 35 providing the required curved arch-like opening, and the fascia wall 22 providing a continuous false front "wall" across the voids left between the soffit and the upper corners of opening 40.
  • Plaster is then applied to the fascia wall 22 and soffit 35 to depths A and B respectively, the bead 38 providing a plaster stop in each direction, i.e.
  • the depths A and B are substantially equal.
  • the plaster filling the bead interior serves to interconnect or "link up" the plaster applied to the fascia and the plaster applied to the soffit, whereby the risk of plaster damage (e.g. cracking) at the fascia and soffit peripheries is reduced.
  • the perforated regions 36,39 correspond to the "reverse bends" provided by the bead's laterally curved transitions (a) from the directional plane of the soffit to the curved bead (transition 36), and (b) from the curved bead to the vertical plane of the fascia-abutting free edge of the bead (transition 39).
  • the provision of the perforations 34 in these "reverse bend" transition regions facilitates their formation on the lock forming or other similar bending machine.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
EP86303952A 1985-05-31 1986-05-23 Elément formant Withdrawn EP0203796A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8513768A GB2175625B (en) 1985-05-31 1985-05-31 Improvements in or relating to formers
GB8513768 1985-05-31

Publications (2)

Publication Number Publication Date
EP0203796A2 true EP0203796A2 (fr) 1986-12-03
EP0203796A3 EP0203796A3 (fr) 1987-09-16

Family

ID=10579974

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86303952A Withdrawn EP0203796A3 (fr) 1985-05-31 1986-05-23 Elément formant

Country Status (2)

Country Link
EP (1) EP0203796A3 (fr)
GB (1) GB2175625B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2193236A (en) * 1986-07-30 1988-02-03 Thermal Fab Limited Modifying an internal recess to an arch structure
AU635110B2 (en) * 1990-02-13 1993-03-11 Samuel Francis Hardy Method of and cover strip lining for forming cavity wall arches
EP0972890A1 (fr) * 1998-07-17 2000-01-19 Bruno Alois Rossi Elément de revêtement et construction comportant un tel élément

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5751470A (en) * 1996-03-12 1998-05-12 Lexmark International, Inc. Method for enhanced print quality on print engines with at least one high resolution dimension

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1782147A (en) * 1929-07-18 1930-11-18 Merryweather Thomas Metal arch member for openings
US1979701A (en) * 1931-04-27 1934-11-06 Merryweather Clyde Plastering base
US2005572A (en) * 1933-08-09 1935-06-18 United States Gypsum Co Building arch construction
US2267002A (en) * 1941-05-23 1941-12-23 Milcor Steel Company Corner bead
US2590846A (en) * 1944-11-30 1952-04-01 Richard H Cutting Plaster base
GB1603111A (en) * 1978-02-14 1981-11-18 Jones F R Method of covering the exposed face of a steel lintel spanning an opening in a building structure and a supporting arrangement therefore
GB1590298A (en) * 1978-05-25 1981-05-28 Tantalic Acoustical Eng Ltd Arch formers for use in the building of arches
EP0053456B1 (fr) * 1980-12-01 1984-03-14 Tantalic Acoustical Engineering Limited Coffrages perdus en arc
GB2117422A (en) * 1982-03-06 1983-10-12 Jones Frederick & Son Lintel
DE3273253D1 (en) * 1982-12-16 1986-10-16 Tantalic Acoustical Eng Arch formers

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2193236A (en) * 1986-07-30 1988-02-03 Thermal Fab Limited Modifying an internal recess to an arch structure
AU635110B2 (en) * 1990-02-13 1993-03-11 Samuel Francis Hardy Method of and cover strip lining for forming cavity wall arches
EP0972890A1 (fr) * 1998-07-17 2000-01-19 Bruno Alois Rossi Elément de revêtement et construction comportant un tel élément

Also Published As

Publication number Publication date
GB2175625B (en) 1988-08-24
GB8513768D0 (en) 1985-07-03
GB2175625A (en) 1986-12-03
EP0203796A3 (fr) 1987-09-16

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