US1772745A - Reflector for illuminating streets and the like - Google Patents
Reflector for illuminating streets and the like Download PDFInfo
- Publication number
- US1772745A US1772745A US240537A US24053727A US1772745A US 1772745 A US1772745 A US 1772745A US 240537 A US240537 A US 240537A US 24053727 A US24053727 A US 24053727A US 1772745 A US1772745 A US 1772745A
- Authority
- US
- United States
- Prior art keywords
- reflector
- illuminating
- streets
- illuminating streets
- parabola
- 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
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
- F21S8/08—Lighting devices intended for fixed installation with a standard
-
- 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
- F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
- F21V17/12—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by screwing
Definitions
- a cable u which is to be intro oed by means of a; recess a: of the easing b into the illuminating reflector and to be disposed in the hollow spaced;
- the 10 My of the illuminating body and the ex change of the glow-lamp bulb 8 may easily take place through the collar h after the opening of the hoodn.
- IHumiHatingZep aratus comprising a ret floctnr conslstmg vof a complete, barrellimed'glassbody of rotation whose meridii o V curve is a parabola, in the focalpoint a -which the exisofrotation is 'perpendicn- M all: to the axisof the parabola and which y on a part of'its surface with a 1 layer, and a metalcasin g, only enebeingt reflecting part ofthe glass body apart of. a body ofjrotation gmwhose axis travels at a shortdistance parallot to the axis of the glass body.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Fastening Of Light Sources Or Lamp Holders (AREA)
Description
12, 1930. w. BAUERSFELD REFLECTOR won ILLUMINATING STREETS AND THE LIKE Filed Dec. 16, 1927 vided with a carrier r to be fixed on the casing vb. In order to complete this reflector to I i "an illuminating body there is further-required a glow-lamp bulb s, which is held by a mount v t 5 t to provided on the metal cap 6. For the current su ply is used a cable u which is to be intro oed by means of a; recess a: of the easing b into the illuminating reflector and to be disposed in the hollow spaced; The 10 My of the illuminating body and the ex change of the glow-lamp bulb 8 may easily take place through the collar h after the opening of the hoodn. e
. .e I chum: V
IHumiHatingZep aratus comprising a ret floctnr conslstmg vof a complete, barrellimed'glassbody of rotation whose meridii o V curve is a parabola, in the focalpoint a -which the exisofrotation is 'perpendicn- M all: to the axisof the parabola and which y on a part of'its surface with a 1 layer, and a metalcasin g, only enebeingt reflecting part ofthe glass body apart of. a body ofjrotation gmwhose axis travels at a shortdistance parallot to the axis of the glass body. t
t WALTHER BAUERSFELD.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1772745X | 1926-12-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1772745A true US1772745A (en) | 1930-08-12 |
Family
ID=7742636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US240537A Expired - Lifetime US1772745A (en) | 1926-12-22 | 1927-12-16 | Reflector for illuminating streets and the like |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1772745A (en) |
-
1927
- 1927-12-16 US US240537A patent/US1772745A/en not_active Expired - Lifetime
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