US149780A - Improvement in reflectors - Google Patents
Improvement in reflectors Download PDFInfo
- Publication number
- US149780A US149780A US149780DA US149780A US 149780 A US149780 A US 149780A US 149780D A US149780D A US 149780DA US 149780 A US149780 A US 149780A
- Authority
- US
- United States
- Prior art keywords
- reflectors
- improvement
- chimney
- apexes
- truncated
- 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
- 150000001875 compounds Chemical class 0.000 description 4
- 229960001948 caffeine Drugs 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 239000003350 kerosene Substances 0.000 description 2
- 239000010742 number 1 fuel oil 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
- F21V7/00—Reflectors for light sources
- F21V7/04—Optical design
- F21V7/09—Optical design with a combination of different curvatures
Definitions
- Figure l is a side elevation, and Fig. 2 ak horizontal section, through a common coal-oil or kerosene lamp lamp-chimney provided with my reflector.
- A represents a chimney, such as used in ⁇ kerosene-lamps and for gas-burners.
- B B B are three funnelformed or truncated parabolic reflectors, joined at their apexes by braces b or otherwise, and having projecting from their tops three elastic fingers, C C C", adapted, when the compound reflector is in position, to press lightly around and thus grasp the said chimney, so as to hold the said compound re Hector in its exact and proper place.
- the reflectors may be arranged, one or more of them, to project the rays either horizontally, as shown, or at any other upward or downward angle or angles desired. They may also be of greater numbers and corresponding directions, up to ten, for which I reserve the right to make the subject of one or more separate applications for patent. Y
Description
UNITED STATES PATENT OFFICE.
CHAUNCEY M. MURCH, OF CINCINNATI, OHIO.
IMPROVEMENT IN Renee-roes.
Specification forming part of Letters Patent No. 149,7S0, dated April 14,1374; application filed March 2l, 1874.
Figure l is a side elevation, and Fig. 2 ak horizontal section, through a common coal-oil or kerosene lamp lamp-chimney provided with my reflector.
A represents a chimney, such as used in `kerosene-lamps and for gas-burners. B B B are three funnelformed or truncated parabolic reflectors, joined at their apexes by braces b or otherwise, and having projecting from their tops three elastic fingers, C C C", adapted, when the compound reflector is in position, to press lightly around and thus grasp the said chimney, so as to hold the said compound re Hector in its exact and proper place.
The reflectors may be arranged, one or more of them, to project the rays either horizontally, as shown, or at any other upward or downward angle or angles desired. They may also be of greater numbers and corresponding directions, up to ten, for which I reserve the right to make the subject of one or more separate applications for patent. Y
I claim herein as nen7 and of my invention- The combination of the three truncated, parabolic, or conical reflectors, B B B, joined together at their apexes, and having springs C C C, supporting` thein adjustably at any height, all as herein shown and described.
In testimony of which invention I hereunto set my hand.
oHAUNonY M. nunon.
Attest:
Guo. H. KNIGHT, Jmvrns H. LAYMAN.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US149780A true US149780A (en) | 1874-04-14 |
Family
ID=2219193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US149780D Expired - Lifetime US149780A (en) | Improvement in reflectors |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US149780A (en) |
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0
- US US149780D patent/US149780A/en not_active Expired - Lifetime
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