US3742210A - Collapsible lamp shade - Google Patents

Collapsible lamp shade Download PDF

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Publication number
US3742210A
US3742210A US00220639A US3742210DA US3742210A US 3742210 A US3742210 A US 3742210A US 00220639 A US00220639 A US 00220639A US 3742210D A US3742210D A US 3742210DA US 3742210 A US3742210 A US 3742210A
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shade
flanges
lampshade
tube
strut
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Expired - Lifetime
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US00220639A
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P Chapman
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V1/00Shades for light sources, i.e. lampshades for table, floor, wall or ceiling lamps

Definitions

  • This invention provides a lampshade which is capable of being flattened and comprising a tubular shade eonstituted by two halves formed with inturned flanges joined together at diametrically opposite points, springs in each half of the shade which extend between the flanges at top and bottom of the shade and can yield to permit the shade to be flattened, supporting means for supporting the shade in the expanded condition and a fitting carried by the supporting means for attaching the shade to a lamp to be shaded.
  • the shade may be made of any desired foldable material, for example paper or fabric. It is normally held expanded by the springs, which are preferably pre-bent wires, but can be flattened by'pressure to enable it to be accommodated in an envelope in which it may be packed for sale.
  • the packed lampshade can thus be stacked flat in a shop and will immediately expand to the working configuration when removed from the envelope by the purchaser.
  • the supporting means may be atelescopic strut permanently attached to the shade or it may be detachable and packed in the same envelope as the flattened shade. In the latter case it may be a nontelescopic strut which can be fitted to the flanges of the shade at a location intermediate of the depth of the shade or a pair of rings which can. be clipped to the top and bottom of the shade, one of these rings carrying the fitting for attachment to the lamp.
  • FIG. 1 is a perspective view showing the first embodiment in the expanded condition
  • FIG. 2 is a corresponding sectional elevation
  • FIG. 3 is a sectional elevation of the flattened lampshade
  • FIG. 4 is a corresponding plan view
  • FIG. 5 is a perspective view showing the second embodiment.
  • the shade 10 illustrated in FIGSQl-4 which is of frusto-conical form when expanded, consists of two sheets 11 of stiff paper or similar material having their edges inturned and glued together to form diametrically opposed internal flanges 12.
  • springs consisting respectively of pairs of pre-bent wires l3, 14, which extend between and abut at their ends against the flanges l2'and are respectively enclosed by inturned top and bottom flanges l5 and 16 on the shade which are glued to the inner face of the shade to retain the wires in place.
  • the wires normally assume a semi-circular configuration and hold the shade expanded as shown in FIGS. 1 and 2, but nevertheless allow it to be pressed flat for enclosure in an envelope.
  • a strut 17, which is attached to the shade about midway in its depth, consists of a metal tube 18 and two stout wires 19 bent to a right angle and having limbs accommodated in the ends of the tube.
  • the end of one wire 19 is freely slidable in the tube 18 but the end of the other wire is cranked as shown at 20 to provide a friction grip on the tube which prevents the tube from sliding on the wire during collapse of the shade, but nevertheless permits the tube to rotate with respect to the wire.
  • the strut 17 carries a fitting 23 for attaching it to a lamp to be shaded.
  • This consists of a length of wire bent to form two overlapping circular loops 24 and attached at its ends 25 to the tube 18 by welding. Alternatively the ends 25 may be attached to the tube by glued paper strips.
  • the loops 24 of the fitting can be sprung apart to grip the bulb of a ceiling lamp, when the tube 18 is positioned as shown in FIGS. 1 and 2, so that the loops extend upwardly, or the bulb of a standard lamp when the tube 18 has been rotated with respect to the wires 19 so that the loops extend downwardly.
  • the shade may be flattened by lateral pressure, the wires 19 moving apart in the tube 18, to permit it to be accommodated for package in an envelope.
  • the shade may be supported in the expanded condition by a nontelescopic strut carrying the fitting 23 and having down-turned ends which are removably accommodated in the pockets formed by the paper strips 21.
  • the lampshade shown in FIG. 5 is generally similar but in this case the shade 10 is cylindricaland is held expanded by two detachable rings 30, 31 which can be clipped to the wires l3, 14 at top and bottom of the shade and which can be packed in the same envelope as the flattened shade.
  • the ring 30 carries a ring 32, attached to it by spokes 33 and'serving to attach the shade to a lamp.
  • the ring 30 is fitted to'the top of the shade as shown in the case of a hanging lamp.
  • the positions of the rings 30, 31 are interchanged, the ring 30 being fitted to the bottom of the shade.
  • each of the rings 30, 31 has a flexible lip 34 to facilitate clipping of the rings over the wires 13, 14.
  • a lampshade which is capable of being flattened and comprising a tubular shade constituted by two halves, each consisting of a single sheet of flexible material formed at its edges with inturned flanges, opposed flanges of said sheets being joined together to form diametrically opposite pairs of joined flanges, springs of prebent wire in each half of the shade which extend in pairs between said flanges at top and bottom of the shade, are enclosed and retained by inturned top and bottom flanges on said sheets, normally maintain the shade expanded and can yield while retained by said top and bottom flanges to permit the shade to be flattened, supporting means for supporting the shade in the expanded condition and a fitting carried by the sup portingmeans for attaching the shade to a lamp to be shaded.
  • a lampshade as claimed in claim I in which the supporting means is a strut carrying the fitting and extending between the flanges of the shade at a location intermediate of the depth of the shade.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

A lampshade which is capable of being flattened and comprising a tubular shade constituted by two halves formed with inturned flanges joined together at diametrically opposite points, springs in each half of the shade which extend between the flanges at top and bottom of the shade and can yield to permit the shade to be flattened, supporting means for supporting the shade in the expanded condition and a fitting carried by the supporting means for attaching the shade to a lamp to be shaded.

Description

United States Patent 1 91 1111 3,742,210
Chapman 1 1 June 26, 1973 [5 COLLAPSIBLE LAMP SHADE 2,475,405 7/1949 Rousselle 240/108 R Inventor: Paul Fraser p Aberaeron, 2,819,386 l/l958 Lmderoth 240/108 R wales FOREIGN PATENTS OR APPLICATIONS 602,532 5/1948 Great Britain 240/l08 R [73] Assgnee' Kenneth Gemge Chapman 669,918 4 1952 Great Britain 240/108 R Aberaeron, Wales [22] Filed: Jan. 25, 1972 Primary Examiner-Samuel S. Matthews Assistant Examiner -Monroe H. Hayes [21] Appl' 220639 Attorney-Watson, Cole, Grindle & Watson [30] Foreign Application Priority Data S AC Jan. 27, 1971 Great Britain; 3,289/71 A ampshade which is apable of being flattened and comprising a tubular shade constituted by two halves [52] U.S. Cl. 240/108 R, 240/110 rm with in rned flanges joined together at diamet- [51 Int. Cl. F2lv 1/06 rically pp p p g in a h half f the shad [58] Field of Search 240/108 R, 108 A, hi h xten w en the flanges at top and bottom of 240/81 C, 110 the shade and can yield to permit the shade to be flat- 1 tened, supporting means for supporting the shade in the [56] R ferences Cit d expanded condition and a fitting carried by the sup- UNITED STATES PATENTS Adamaitis Priester porting means for attaching the shade to a lamp to be shaded.
7 Claims, 5 Drawing Figures COLLAPSIBLE LAMP SHADE This invention provides a lampshade which is capable of being flattened and comprising a tubular shade eonstituted by two halves formed with inturned flanges joined together at diametrically opposite points, springs in each half of the shade which extend between the flanges at top and bottom of the shade and can yield to permit the shade to be flattened, supporting means for supporting the shade in the expanded condition and a fitting carried by the supporting means for attaching the shade to a lamp to be shaded.
The shade may be made of any desired foldable material, for example paper or fabric. It is normally held expanded by the springs, which are preferably pre-bent wires, but can be flattened by'pressure to enable it to be accommodated in an envelope in which it may be packed for sale. The packed lampshade can thus be stacked flat in a shop and will immediately expand to the working configuration when removed from the envelope by the purchaser.
The supporting means may be atelescopic strut permanently attached to the shade or it may be detachable and packed in the same envelope as the flattened shade. In the latter case it may be a nontelescopic strut which can be fitted to the flanges of the shade at a location intermediate of the depth of the shade or a pair of rings which can. be clipped to the top and bottom of the shade, one of these rings carrying the fitting for attachment to the lamp.
Two embodiments of lampshade in accordance with the invention will now be described in detail, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 is a perspective view showing the first embodiment in the expanded condition,
FIG. 2 is a corresponding sectional elevation,
FIG. 3 is a sectional elevation of the flattened lampshade,
FIG. 4 is a corresponding plan view, and
FIG. 5 is a perspective view showing the second embodiment.
The shade 10 illustrated in FIGSQl-4, which is of frusto-conical form when expanded, consists of two sheets 11 of stiff paper or similar material having their edges inturned and glued together to form diametrically opposed internal flanges 12. At top and bottom of the shade are springs, consisting respectively of pairs of pre-bent wires l3, 14, which extend between and abut at their ends against the flanges l2'and are respectively enclosed by inturned top and bottom flanges l5 and 16 on the shade which are glued to the inner face of the shade to retain the wires in place. The wires normally assume a semi-circular configuration and hold the shade expanded as shown in FIGS. 1 and 2, but nevertheless allow it to be pressed flat for enclosure in an envelope.
A strut 17, which is attached to the shade about midway in its depth, consists of a metal tube 18 and two stout wires 19 bent to a right angle and having limbs accommodated in the ends of the tube. The end of one wire 19 is freely slidable in the tube 18 but the end of the other wire is cranked as shown at 20 to provide a friction grip on the tube which prevents the tube from sliding on the wire during collapse of the shade, but nevertheless permits the tube to rotate with respect to the wire.
The other ends of these wires extend downwardly alongside the flanges 12 on the shade and are attached to the flanges by glued paper strips 21. The extreme lower ends 22 of the wires are bent inwardly to prevent withdrawal of the strut from the shade.
The strut 17 carries a fitting 23 for attaching it to a lamp to be shaded. This consists of a length of wire bent to form two overlapping circular loops 24 and attached at its ends 25 to the tube 18 by welding. Alternatively the ends 25 may be attached to the tube by glued paper strips.
The loops 24 of the fitting can be sprung apart to grip the bulb of a ceiling lamp, when the tube 18 is positioned as shown in FIGS. 1 and 2, so that the loops extend upwardly, or the bulb of a standard lamp when the tube 18 has been rotated with respect to the wires 19 so that the loops extend downwardly.
As shown in FIGS. 3 and 4, owing to the flexibility of A the wires 13, 14, the shade may be flattened by lateral pressure, the wires 19 moving apart in the tube 18, to permit it to be accommodated for package in an envelope.
As an alternative to using a telescopic strut which is permanently attached to the flanges 12, the shade may be supported in the expanded condition by a nontelescopic strut carrying the fitting 23 and having down-turned ends which are removably accommodated in the pockets formed by the paper strips 21.
The lampshade shown in FIG. 5 is generally similar but in this case the shade 10 is cylindricaland is held expanded by two detachable rings 30, 31 which can be clipped to the wires l3, 14 at top and bottom of the shade and which can be packed in the same envelope as the flattened shade. The ring 30 carries a ring 32, attached to it by spokes 33 and'serving to attach the shade to a lamp. The ring 30 is fitted to'the top of the shade as shown in the case of a hanging lamp. For a table lamp the positions of the rings 30, 31 are interchanged, the ring 30 being fitted to the bottom of the shade.
As will be seen each of the rings 30, 31 has a flexible lip 34 to facilitate clipping of the rings over the wires 13, 14.
What I claim as my invention and desire to secure by Letters Patent is:
l. A lampshade which is capable of being flattened and comprising a tubular shade constituted by two halves, each consisting of a single sheet of flexible material formed at its edges with inturned flanges, opposed flanges of said sheets being joined together to form diametrically opposite pairs of joined flanges, springs of prebent wire in each half of the shade which extend in pairs between said flanges at top and bottom of the shade, are enclosed and retained by inturned top and bottom flanges on said sheets, normally maintain the shade expanded and can yield while retained by said top and bottom flanges to permit the shade to be flattened, supporting means for supporting the shade in the expanded condition and a fitting carried by the sup portingmeans for attaching the shade to a lamp to be shaded.
2. A lampshade as claimed in claim I, in which the supporting means is a strut carrying the fitting and extending between the flanges of the shade at a location intermediate of the depth of the shade.
3. A lampshade as claimed in claim 2, in which the strut is telescopic.
6. A lampshade as claimed in claim 2, in which the strut is nontelescopic and is removable from the flanges to permit of flattening of the shade.
7. A lampshade as claimed in claim 1, in which the supporting means is constituted by removable rings adapted to clip on to the top and bottom ends of the shade, one of the rings carrying the fitting for attaching the shade to the lamp.

Claims (7)

1. A lampshade which is capable of being flattened and comprising a tubular shade constituted by two halves, each consisting of a single sheet of flexible material formed at its edges with inturned flanges, opposed flanges of said sheets being joined together to form diametrically opposite pairs of joined flanges, springs of prebent wire in each half of the shade which extend in pairs between said flanges at top and bottom of the shade, are enclosed and retained by inturned top and bottom flanges on said sheets, normally maintain the shade expanded and can yield while retained by said top and bottom flanges to permit the shade to be flattened, supporting means for supporting the shade in the expanded condition and a fitting carried by the supporting means for attaching the shade to a lamp to be shaded.
2. A lampshade as claimed in claim 1, in which the supporting means is a strut carrying the fitting and extending between the flanges of the shade at a location intermediate of the depth of the shade.
3. A lampshade as claimed in claim 2, in which the strut is telescopic.
4. A lampshade as claimed in claim 3, in which the strut is constituted by a tube and two bent wires having ends accommodated in the tube and other ends attached to the flanges of the shade, one wire being freely slidable in the tube and the other having a friction grip on the tube.
5. A lampshade as claimed in claim 4, in which the fitting for attaching the shade to the lamp is constituted by a length of wire Bent to form two overlapping circular portions and having its ends attached to the tube.
6. A lampshade as claimed in claim 2, in which the strut is non-telescopic and is removable from the flanges to permit of flattening of the shade.
7. A lampshade as claimed in claim 1, in which the supporting means is constituted by removable rings adapted to clip on to the top and bottom ends of the shade, one of the rings carrying the fitting for attaching the shade to the lamp.
US00220639A 1971-01-27 1972-01-25 Collapsible lamp shade Expired - Lifetime US3742210A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4745532A (en) * 1987-07-31 1988-05-17 Mo Yhu Kee Lampshade
US5711599A (en) * 1995-11-29 1998-01-27 Teng; Chih-Chen Lampshade
US6709134B2 (en) * 2001-02-28 2004-03-23 Wen-Chang Wu Extendible assembly-type lamp shade structure
US20070273547A1 (en) * 2006-05-18 2007-11-29 Javier Lopez Barbarin Signalling element
US20110137665A1 (en) * 2009-12-08 2011-06-09 Brian Acworth Art display system and method
EP2333711A2 (en) 2009-12-08 2011-06-15 Brian Acworth Art display system and method
EP2613304A2 (en) 2012-01-06 2013-07-10 Brian Acworth Image display system and method
US8931192B2 (en) 2009-12-08 2015-01-13 Museum Light Co. Art Display System and Method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202008008123U1 (en) * 2008-06-19 2009-10-29 Paulmann Licht Gmbh lamp

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1708714A (en) * 1928-01-16 1929-04-09 Stanley F Ragan Lamp shade
GB602532A (en) * 1945-10-16 1948-05-28 Lionel Victor Williams Improvements in and relating to lamp shades
US2475405A (en) * 1946-11-14 1949-07-05 Edward L Rousselle Lamp shade
GB669918A (en) * 1949-05-23 1952-04-09 Alfred Page Improvements in or relating to lamp shades
US2677756A (en) * 1949-03-18 1954-05-04 Empire Shades Inc Lamp shade and supporting spider
US2819386A (en) * 1955-08-15 1958-01-07 Rodney V Linderoth Lamp shades

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1708714A (en) * 1928-01-16 1929-04-09 Stanley F Ragan Lamp shade
GB602532A (en) * 1945-10-16 1948-05-28 Lionel Victor Williams Improvements in and relating to lamp shades
US2475405A (en) * 1946-11-14 1949-07-05 Edward L Rousselle Lamp shade
US2677756A (en) * 1949-03-18 1954-05-04 Empire Shades Inc Lamp shade and supporting spider
GB669918A (en) * 1949-05-23 1952-04-09 Alfred Page Improvements in or relating to lamp shades
US2819386A (en) * 1955-08-15 1958-01-07 Rodney V Linderoth Lamp shades

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4745532A (en) * 1987-07-31 1988-05-17 Mo Yhu Kee Lampshade
US5711599A (en) * 1995-11-29 1998-01-27 Teng; Chih-Chen Lampshade
US6709134B2 (en) * 2001-02-28 2004-03-23 Wen-Chang Wu Extendible assembly-type lamp shade structure
US20070273547A1 (en) * 2006-05-18 2007-11-29 Javier Lopez Barbarin Signalling element
US7652588B2 (en) * 2006-05-18 2010-01-26 Barbolight, S.L. Signalling element
US20110137665A1 (en) * 2009-12-08 2011-06-09 Brian Acworth Art display system and method
EP2333711A2 (en) 2009-12-08 2011-06-15 Brian Acworth Art display system and method
US8291628B2 (en) 2009-12-08 2012-10-23 Brian Acworth Art display system and method
US8931192B2 (en) 2009-12-08 2015-01-13 Museum Light Co. Art Display System and Method
US9587793B2 (en) 2009-12-08 2017-03-07 Museum Light Co. Shade for use with an illuminated display unit
EP2613304A2 (en) 2012-01-06 2013-07-10 Brian Acworth Image display system and method

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GB1313994A (en) 1973-04-18

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