US48461A - Improvement in street-lamps - Google Patents
Improvement in street-lamps Download PDFInfo
- Publication number
- US48461A US48461A US48461DA US48461A US 48461 A US48461 A US 48461A US 48461D A US48461D A US 48461DA US 48461 A US48461 A US 48461A
- Authority
- US
- United States
- Prior art keywords
- lamp
- street
- lamps
- improvement
- light
- 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
- 241000306729 Ligur Species 0.000 description 2
- 230000000875 corresponding Effects 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
- This invention relates to an' application ot' 'reflectors-to the lamp, as hereinafter shown andfdescribed, whereby the light which is now allowed to beradiatcd upward through the top ofthe lamp, and consequently lost, is reected downward upon the pavement.
- B is a reflector, which may be of pyramidal form, and has an opening, ct, at its center, directly over the iiamc C.
- 'lhis reector may be constructed ot any proper material, and it is placed or secured in the lamp just above the flame (l, at the lower part of the top b of the lamp.
- a reflector which maybe also oli' a pyramidal form, and is placed in the bottom of the lamp, the gas-tube E, when gas is used, passing through the apex of the refiector, as shown in Fig. l.
- the reflectors B D may have smooth o rugated surfaces, audit will be seen by ring to Fig. l that the rays of light iro iiame C will be reflected in the direction cated by the red lines, and the light quen tly thrown down upon the pavement.
- he lower reflector, D is important, as it throws outward from the lamp the rays of light which are radiated downward frornhthe flame within the lamp, and which would otherwise be lost or not rendered available.
- the two reiiectors BD with' vitreous corrugacd surfaces, in combination with the streetlainp A C E, all constructed, arranged, and operatin g as and for the purposes specified.
Description
J. smATToN.
Street' Lamp. Nu. 48,461. Patented June 1865.
K 11H1 FW far/'y J Fi f j gm; C@ illmgiiirlmli l /W'A/vf? N. PETERS. Pham-Lixhagnpnur. washingcm D. C.
UNITED STATES' PATENT OFFICE.
IMPROVEMENT IN STREET-LAMPS.
Specification forming part of Letters Patent No. 48,461, dated June 27, 1865.
4ing had to the accompanying drawings, making a part of this specification, in which- Figure l is a side sectional view of my invention; Figs. 2 and 3, detached face views oi' two rctlectors which are applied to the lamp.
Similar letters of reference indicate corresponding parts in the several ligures.
This invention relates to an' application ot' 'reflectors-to the lamp, as hereinafter shown andfdescribed, whereby the light which is now allowed to beradiatcd upward through the top ofthe lamp, and consequently lost, is reected downward upon the pavement.
To-enable those skilled in the art to fully understand and construct my invention, I will proceed to describe it.
Arepresents a street-lamp, which may be constructed in the usual way, and therefore does not require a minute description.
B is a reflector, which may be of pyramidal form, and has an opening, ct, at its center, directly over the iiamc C. 'lhis reector may be constructed ot any proper material, and it is placed or secured in the lamp just above the flame (l, at the lower part of the top b of the lamp.
D is a reflector, which maybe also oli' a pyramidal form, and is placed in the bottom of the lamp, the gas-tube E, when gas is used, passing through the apex of the refiector, as shown in Fig. l.
The reflectors B D may have smooth o rugated surfaces, audit will be seen by ring to Fig. l that the rays of light iro iiame C will be reflected in the direction cated by the red lines, and the light quen tly thrown down upon the pavement. he lower reflector, D, is important, as it throws outward from the lamp the rays of light which are radiated downward frornhthe flame within the lamp, and which would otherwise be lost or not rendered available.
Having thus described 'my invention, what I claim as new, and desire to secure by Letters Patent, s-
The two reiiectors BD, with' vitreous corrugacd surfaces, in combination with the streetlainp A C E, all constructed, arranged, and operatin g as and for the purposes specified.
JAMES STRATTON. Witnesses:
THEO. TUscH, M. M. LrvINGsToN.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US48461A true US48461A (en) | 1865-06-27 |
Family
ID=2118016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US48461D Expired - Lifetime US48461A (en) | Improvement in street-lamps |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US48461A (en) |
-
0
- US US48461D patent/US48461A/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US48461A (en) | Improvement in street-lamps | |
| US34293A (en) | Improved chimney for lamps | |
| US285270A (en) | Julius jaegeb | |
| US48632A (en) | Improvement in lamp-shades | |
| US55054A (en) | Improvement in lamp-chimneys | |
| US27485A (en) | Augustus tufts | |
| US205607A (en) | Improvement in street-lamps | |
| US58212A (en) | Improvement in reflectors for lanterns | |
| US34048A (en) | Improvement in lamps | |
| US38163A (en) | Improved reflector for lamps | |
| US77408A (en) | William g | |
| US35644A (en) | Improvement in lamp-reflectors | |
| US35535A (en) | Improvement in lam p-chi mneys | |
| US68278A (en) | Improvement in lamp-shades | |
| US42249A (en) | Improvement in lanterns | |
| US158396A (en) | Improvement in street-lamps | |
| US33962A (en) | Improvement in reflectors for lamps | |
| US40594A (en) | Improvement in lanterns | |
| US117089A (en) | Improvement in reflectors for locomotive head-lights | |
| US164380A (en) | Improvement in lamp-shades | |
| US465481A (en) | Hector leak | |
| US205308A (en) | Improvement in lamp-reflectors | |
| US37773A (en) | Improved combination of globe and chimney for lamps | |
| US93228A (en) | Improvement in lamps | |
| US165509A (en) | Improvement in street-lamp reflectors |