GB993402A - Improvements in or relating to light shielding means and the like - Google Patents

Improvements in or relating to light shielding means and the like

Info

Publication number
GB993402A
GB993402A GB2942560A GB2942560A GB993402A GB 993402 A GB993402 A GB 993402A GB 2942560 A GB2942560 A GB 2942560A GB 2942560 A GB2942560 A GB 2942560A GB 993402 A GB993402 A GB 993402A
Authority
GB
United Kingdom
Prior art keywords
edges
unit
walls
interfit
aug
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
GB2942560A
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.)
REGINALD HENRY BONE
Original Assignee
REGINALD HENRY BONE
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 REGINALD HENRY BONE filed Critical REGINALD HENRY BONE
Priority to GB2942560A priority Critical patent/GB993402A/en
Publication of GB993402A publication Critical patent/GB993402A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
    • F21V11/06—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using crossed laminae or strips, e.g. grid-shaped louvers; using lattices or honeycombs
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/34—Grid-like or open-work ceilings, e.g. lattice type box-like modules, acoustic baffles
    • E04B9/345—Grid-like or open-work ceilings, e.g. lattice type box-like modules, acoustic baffles consisting of non-parallel slats, e.g. grids

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)

Abstract

993,402. Suspended ceilings. R. H. BONE. Aug. 25, 1961 [Aug. 25, 1960], No. 29425/60. Heading E1V. [Also in Division F4] Apparatus for shielding an electric lamp comprises a unit having two series of spaced intersecting walls forming a grid having lighttransmitting openings between the walls, each wall being of wedge-shaped cross-section, the unit having two opposite edges of complementary shape each of which can interfit with the opposite edge of a second unit. The other two edges of the unit have laterally extending flanges for supporting the unit. In the form shown, the walls 12, Fig. 4, are wedge shaped with the faces 14 of the wedges of parabolic form and metallized to provide a specular reflecting surface. The lateral edges 21, 22 are of complementary shape to interfit with corresponding edges of other units. The other pair of edges 25, Fig. 2, are bent over to form flanges 26 which are supported from the ceiling by hangers with upturned edges 33 or by L-shaped members 27 mounted on strips 28 secured to the walls 29 of the room. If desired, the units may be interspersed with ceiling tiles or boards.
GB2942560A 1960-08-25 1960-08-25 Improvements in or relating to light shielding means and the like Expired GB993402A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2942560A GB993402A (en) 1960-08-25 1960-08-25 Improvements in or relating to light shielding means and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2942560A GB993402A (en) 1960-08-25 1960-08-25 Improvements in or relating to light shielding means and the like

Publications (1)

Publication Number Publication Date
GB993402A true GB993402A (en) 1965-05-26

Family

ID=10291374

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2942560A Expired GB993402A (en) 1960-08-25 1960-08-25 Improvements in or relating to light shielding means and the like

Country Status (1)

Country Link
GB (1) GB993402A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2263803A1 (en) * 1972-01-04 1973-07-12 Poul Willumsen GRID FOR LIGHTING FITTINGS
FR2169319A1 (en) * 1972-01-27 1973-09-07 Bartenbach Christian
US4268897A (en) * 1979-07-23 1981-05-19 Templet Industries, Inc. Self-locking louver for lighting fixture
US4625470A (en) * 1982-12-17 1986-12-02 Intalite International N.V. Openwork screen assembly
US4821160A (en) * 1987-04-14 1989-04-11 American Louver Company Flanged louver construction
DE4230907A1 (en) * 1992-09-16 1994-03-17 Parol Leuchtenkomponenten Gmbh Light raster for tubular discharge lamp lighting unit - with transparent intersecting struts having mirrored parabolic side faces and acting as light guides
US20140168954A1 (en) * 2012-12-14 2014-06-19 David Gershaw Led panel light fixture

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2263803A1 (en) * 1972-01-04 1973-07-12 Poul Willumsen GRID FOR LIGHTING FITTINGS
FR2169319A1 (en) * 1972-01-27 1973-09-07 Bartenbach Christian
US4268897A (en) * 1979-07-23 1981-05-19 Templet Industries, Inc. Self-locking louver for lighting fixture
US4625470A (en) * 1982-12-17 1986-12-02 Intalite International N.V. Openwork screen assembly
US4821160A (en) * 1987-04-14 1989-04-11 American Louver Company Flanged louver construction
DE4230907A1 (en) * 1992-09-16 1994-03-17 Parol Leuchtenkomponenten Gmbh Light raster for tubular discharge lamp lighting unit - with transparent intersecting struts having mirrored parabolic side faces and acting as light guides
US20140168954A1 (en) * 2012-12-14 2014-06-19 David Gershaw Led panel light fixture
US9182091B2 (en) * 2012-12-14 2015-11-10 Remphos Technologies Llc LED panel light fixture

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