US189945A - Improvement in lamp-chimneys - Google Patents
Improvement in lamp-chimneys Download PDFInfo
- Publication number
- US189945A US189945A US189945DA US189945A US 189945 A US189945 A US 189945A US 189945D A US189945D A US 189945DA US 189945 A US189945 A US 189945A
- Authority
- US
- United States
- Prior art keywords
- lamp
- improvement
- chimneys
- chimney
- shade
- 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
- 238000010276 construction Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 241001465382 Physalis alkekengi Species 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
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
- Figure 1 a side view, and in Fig. 2 a vertical section
- This invention relates to an improvement in lamp-chimneys, and consists inan opaque chimney with an opening for the transmission of light, combined with a hinged or adjustable reflecting shade, as more fully hereinafter described.
- A is the lamp-chimney, made from any suitfable metal, as tin, and of any desirable form,
- an opening, B ismade, lled with mica or other suitable transparent i material, through which the light will freely pass.
- a concave-shaped reflector, C is hinged, as at a, the concave side being toward the opening B, and presenting thereto a bright or reecting surface.
- the bright surface of the interior of the chimney also serves as a reflector to concentrate the light upon the opening'B.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Description
W. H. MASON.
LAMP-r:HIMNEY.
189,945.' Patented Apri1z4-1s77.
ummm, @5A/55%,
NITED STATES PATENT FFIC.
WILLIAM` H. MASON, OF ILANTSVILLE, CONNECTICUT.
IMPROVEMENT IN LAMP-CHININEYS.
Specication forming part of Letters Patent 189,945, dated plfl 24" 1877; application filed March 9, 1871.
To all whom it may concern: v
Beit knownA that I, WILLIAM H. MASON, of Plantsville, in the county of Hartford and State of Connecticut, have invented a new Improvement in Lamp-Chimneys5 and I do hereby declare the following, when taken in connection with the accompanying drawings, and the letters of reference marked thereon, to be a full, clear, and exact description of the same, and which said drawings constitute part of this specication, and represent, in-
Figure 1 a side view, and in Fig. 2 a vertical section This invention relates to an improvement in lamp-chimneys, and consists inan opaque chimney with an opening for the transmission of light, combined with a hinged or adjustable reflecting shade, as more fully hereinafter described.
A is the lamp-chimney, made from any suitfable metal, as tin, and of any desirable form,
according to the burner to which it is to be attached.- In one side an opening, B, ismade, lled with mica or other suitable transparent i material, through which the light will freely pass. Above this opening B a concave-shaped reflector, C, is hinged, as at a, the concave side being toward the opening B, and presenting thereto a bright or reecting surface.
The lightstriking the under surface of this shade is reected downward, and. at the same time the reector serves as a shade to prevent the light from striking the eye.
The bright surface of the interior of the chimney also serves as a reflector to concentrate the light upon the opening'B.
This construction of chimney is specially adapted to study, and classes of Work where the light is desired to be concentrated, and without materially lighting the surrounding space, and at the same time present a perfect shade for the eyes.
It will be understood that while this is termed a lamp-chimney, it is 'applicable alike to gas and other burners.
y I am aware that a metallic case for dark Y lanterns has been made with a door hinged in a similar manner to the shade in this case; but such construction I do not, broadly, claim.
I claim- The herein-descri bed lamp-chimney, Vconsisting of the metal body A, with a transparently closed opening, B, and shade C, all substantially as described.
WILLIAM H. MASON. l Witnesses:
E. B.. NEwELL, A. M. LEWIS.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US189945A true US189945A (en) | 1877-04-24 |
Family
ID=2259352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US189945D Expired - Lifetime US189945A (en) | Improvement in lamp-chimneys |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US189945A (en) |
-
0
- US US189945D patent/US189945A/en not_active Expired - Lifetime
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