GB434123A - Improvements in or relating to electric incandescent lamps - Google Patents
Improvements in or relating to electric incandescent lampsInfo
- Publication number
- GB434123A GB434123A GB5869/34A GB586934A GB434123A GB 434123 A GB434123 A GB 434123A GB 5869/34 A GB5869/34 A GB 5869/34A GB 586934 A GB586934 A GB 586934A GB 434123 A GB434123 A GB 434123A
- Authority
- GB
- United Kingdom
- Prior art keywords
- screen
- filament
- attached
- filaments
- points
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K9/00—Lamps having two or more incandescent bodies separately heated
- H01K9/08—Lamps having two or more incandescent bodies separately heated to provide selectively different light effects, e.g. for automobile headlamp
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/46—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes silicones
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Fastening Of Light Sources Or Lamp Holders (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE434123X | 1933-03-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB434123A true GB434123A (en) | 1935-08-22 |
Family
ID=6504101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5869/34A Expired GB434123A (en) | 1933-03-02 | 1934-02-22 | Improvements in or relating to electric incandescent lamps |
Country Status (3)
| Country | Link |
|---|---|
| FR (1) | FR768850A (fr) |
| GB (1) | GB434123A (fr) |
| NL (2) | NL37153C (fr) |
-
0
- NL NL64656D patent/NL64656C/xx active
- NL NL37153D patent/NL37153C/xx active
-
1934
- 1934-02-19 FR FR768850D patent/FR768850A/fr not_active Expired
- 1934-02-22 GB GB5869/34A patent/GB434123A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL37153C (fr) | |
| NL64656C (fr) | |
| FR768850A (fr) | 1934-08-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB434123A (en) | Improvements in or relating to electric incandescent lamps | |
| GB543570A (en) | Improvements in or relating to wire seals particularly for use in incandescent lamps and discharge tubes | |
| GB506710A (en) | Improvements in electric lamp connecting devices | |
| GB429886A (en) | Improvements in and relating to electric lamps | |
| GB545103A (en) | Improved filament joint for electric lamps | |
| GB574070A (en) | Improvements in and relating to electric lamps | |
| GB444945A (en) | Improvements in x-ray tubes | |
| GB450948A (en) | Improvements in electric incandescent lamps and discharge tubes | |
| GB473257A (en) | Improvements in or relating to dwarf electric incandescent lamps | |
| GB420854A (en) | Method of making incandescent filaments for electric incandescent lamps or dischargetubes | |
| GB427293A (en) | Improvements in or relating to electric discharge tubes | |
| NL36934C (fr) | ||
| GB432354A (en) | Improvements in or relating to incandescent electric lamps | |
| GB232201A (en) | Improvements in or relating to incandescent cathodes for discharge tubes | |
| GB174929A (en) | Improvements in or relating to incandescent electric lamps | |
| GB443535A (en) | Improvements in or relating to indirectly heated cathodes for electric discharge tubes | |
| GB739337A (en) | Improvements in or relating to electric incandescent lamps of the kind comprising atleast one main filament and one screened dimming filament | |
| GB353335A (en) | Improvements relating to electric incandescent lamps and electric discharge tubes | |
| GB421045A (en) | Improvements in electric incandescent lamps | |
| GB460813A (en) | Improvements in or relating to electric incandescent lamps | |
| GB451474A (en) | Improvements in electric discharge tubes | |
| GB472356A (en) | Improvements in or relating to electric incandescent lamps | |
| AU111030B2 (en) | Improvements in sources of light comprising both an electric discharge tube andan incandescent filament | |
| GB464459A (en) | Improvements in electric incandescent lamps for vehicle headlights | |
| GB163478A (en) | Improvements in electric incandescent lamps |