US50509A - Improved lamp-shade - Google Patents
Improved lamp-shade Download PDFInfo
- Publication number
- US50509A US50509A US50509DA US50509A US 50509 A US50509 A US 50509A US 50509D A US50509D A US 50509DA US 50509 A US50509 A US 50509A
- Authority
- US
- United States
- Prior art keywords
- shade
- expander
- lamp
- improved lamp
- chimney
- 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
Links
- 239000011521 glass Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
Images
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
- F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
Definitions
- the body of the shade is a corrugated cylindrical tube, A, made of paper or other suitable material, it being laid in folds or plaits running lengthwise ofthe said body, the same being as exhibited in the drawings.
- A corrugated cylindrical tube
- B a ring
- C a short metallic tube
- springs or elastic projections c c c arranged as shown in the drawings.
- the shade has an expander, D, which consists of an annulus, d, having elastic projections or springs c c c f f f extending from its inner circumference in manner as shown in Figs. 4 and 5.
- This expander is to have a diameter larger than that of the ring B, and when used is placed on and so as to encircle the lamp-chimney.
- the latter On pressing the shade downward on the chimney and the expander the latter will not only serve as an additional support to the shade, but will expand it into the form of a frustum of a cone, and to such extent as may be necessary, the expansion of the shade being increased as the expander is forced up into the shade or the latter pressed down on the expander.
- the improved folding lamp-shade made substantially as described-viz., of the folding bodyl A and the supportingannulus B and tube C and its projections, or the equivalents thereof, applied to one end ofsuch body in manner and so as not only to support the body on a lampchimney, butto enable it to be expanded while thereon, substantially as set forth.
- the expander D constructed substantially as and to be used as specified.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Description
UNITED STATES FATENT OFFICE.
CORNELIUS ST. JOHN, OF BOSTON, MASSACHUSETTS.
IMPROVED LAMP-SHADE.
To all 'whom it may concern:
Be it known that I, CORNELIUS ST. J oHN, ot'Boston,in the=county of Suffolk and State of Massachusetts, have invented a new and useful or Improved Lamp-Shade; and I do hereby declare the same to be fully described in the following specification and represented in the accompanying drawings, of which- Figure l is a top view, Fig. 2 a side elevation, and Fig. 3 a vertical section, ot' the said shade. Fig. 4 is a top View, and Fig. 5 a side elevation, ofits expander. Fig. 6 is a side View of the shade as it appears when in a folded state, and with the expander encompassing it. Fig. 7 is a horizontal section of the shade when opened in the form of a conic frustum.
The body of the shade is a corrugated cylindrical tube, A, made of paper or other suitable material, it being laid in folds or plaits running lengthwise ofthe said body, the same being as exhibited in the drawings. Through these plaits, and near to the upper end of the body, a ring, B, is run, such ring also going through two arms, a a, ofa short metallic tube, C, which is provided with springs or elastic projections c c c, arranged as shown in the drawings. When the shade is placed on the glass chimney of a lamp these springs or projections serve to hold it thereon.
Besides the. above, the shade has an expander, D, which consists of an annulus, d, having elastic projections or springs c c c f f f extending from its inner circumference in manner as shown in Figs. 4 and 5. This expander is to have a diameter larger than that of the ring B, and when used is placed on and so as to encircle the lamp-chimney. On pressing the shade downward on the chimney and the expander the latter will not only serve as an additional support to the shade, but will expand it into the form of a frustum of a cone, and to such extent as may be necessary, the expansion of the shade being increased as the expander is forced up into the shade or the latter pressed down on the expander.
After the shade may have been removed from the lamp-chimney its lower end may be compressed, so as to enable the shade to be inserted into the expander in manner as represented in Fig. 6, when the whole will be re duced to a small compass or convenient form for being laid or packed away.
I claiml. The improved folding lamp-shade, made substantially as described-viz., of the folding bodyl A and the supportingannulus B and tube C and its projections, or the equivalents thereof, applied to one end ofsuch body in manner and so as not only to support the body on a lampchimney, butto enable it to be expanded while thereon, substantially as set forth.
2. In combination, with the folding lampshade so made, the expander D, constructed substantially as and to be used as specified.
CORNELIUS ST. JOHN.
Witnesses:
R. H. EDDY, F. P. HALE, Jr.
Publications (1)
Publication Number | Publication Date |
---|---|
US50509A true US50509A (en) | 1865-10-17 |
Family
ID=2120062
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US50509D Expired - Lifetime US50509A (en) | Improved lamp-shade |
Country Status (1)
Country | Link |
---|---|
US (1) | US50509A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040045335A1 (en) * | 2002-09-05 | 2004-03-11 | Karl-Heinz Lindner | Method for manufacturing structural components from an extruded section |
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0
- US US50509D patent/US50509A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040045335A1 (en) * | 2002-09-05 | 2004-03-11 | Karl-Heinz Lindner | Method for manufacturing structural components from an extruded section |
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