GB515704A - Improvements in gasfilled electric incandescent lamps - Google Patents
Improvements in gasfilled electric incandescent lampsInfo
- Publication number
- GB515704A GB515704A GB17180/38A GB1718038A GB515704A GB 515704 A GB515704 A GB 515704A GB 17180/38 A GB17180/38 A GB 17180/38A GB 1718038 A GB1718038 A GB 1718038A GB 515704 A GB515704 A GB 515704A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bulb
- lamp
- gas
- filament
- june
- 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
- H01K1/00—Details
- H01K1/28—Envelopes; Vessels
- H01K1/34—Double wall vessels
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/02—Incandescent bodies
- H01K1/14—Incandescent bodies characterised by the shape
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/58—Cooling arrangements
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
Landscapes
- Resistance Heating (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Discharge Lamp (AREA)
Abstract
515,704. Gas-filled electric incandescent lamps. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. June 9, 1938, No. 17180. Convention date, June 12, 1937. [Class 39 (ii)] In a lamp with an operating pressure exceeding one atmosphere and a bulb of substantially cylindrical shape with an internal diameter not exceeding 25 m m. at the position of the filament, the filament 1 is located in the neighbourhood of one of the end faces of the bulb 2 and extends in a direction perpendicular to the longitudinal axis of the bulb, so that those portions of the bulb which have the highest temperature during operation come into contact with the gas or vapour surrounding the lamp which has the lowest temperature. In the example the bulb 2 is enclosed within a bulb 9 provided with upper and lower apertures 11, 10 respectively through which the chamber formed between bulbs 2, 9 communicates with the open air, whereby the cooling current circulates in the manner indicated by arrows D. Alternatively the apertures 10, 11 may be omitted and the chamber between the bulbs filled with a heat-dissipating gas such as helium, or a vapour at a pressure of at least 10 cms. of mercury. In a modification adapted more particularly for use in a turbulent surrounding medium the cylindrical lamp bulb is surrounded by a cylindrical member which is open at both ends, the surrounding medium being sucked in at the lower end and passing up along the wall of the tube.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL206539X | 1937-06-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB515704A true GB515704A (en) | 1939-12-12 |
Family
ID=19778583
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB17180/38A Expired GB515704A (en) | 1937-06-12 | 1938-06-09 | Improvements in gasfilled electric incandescent lamps |
| GB17567/38A Expired GB518016A (en) | 1937-06-12 | 1938-06-13 | Improvements in or relating to gasfilled electric incandescent lamps |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB17567/38A Expired GB518016A (en) | 1937-06-12 | 1938-06-13 | Improvements in or relating to gasfilled electric incandescent lamps |
Country Status (5)
| Country | Link |
|---|---|
| BE (2) | BE428543A (en) |
| CH (1) | CH206539A (en) |
| DE (2) | DE725341C (en) |
| FR (2) | FR839199A (en) |
| GB (2) | GB515704A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2485395C1 (en) * | 2012-02-22 | 2013-06-20 | Юлия Алексеевна Щепочкина | Led lamp bulb |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1112785B (en) * | 1955-07-08 | 1961-08-17 | Sylvania Electric Prod | High frequency heated incandescent lamp |
| BR8400807A (en) * | 1983-02-25 | 1984-10-02 | Gte Prod Corp | ELECTRIC HALOGEN / TUNGSTEN LAMP WITH PERMEATABLE ELEMENT CLOSING THE EXTERNAL HOUSING |
-
0
- BE BE428542D patent/BE428542A/xx unknown
- BE BE428543D patent/BE428543A/xx unknown
-
1938
- 1938-06-09 GB GB17180/38A patent/GB515704A/en not_active Expired
- 1938-06-10 DE DEN42077D patent/DE725341C/en not_active Expired
- 1938-06-10 CH CH206539D patent/CH206539A/en unknown
- 1938-06-10 DE DE1938N0042078 patent/DE699404C/en not_active Expired
- 1938-06-11 FR FR839199D patent/FR839199A/en not_active Expired
- 1938-06-11 FR FR839200D patent/FR839200A/en not_active Expired
- 1938-06-13 GB GB17567/38A patent/GB518016A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2485395C1 (en) * | 2012-02-22 | 2013-06-20 | Юлия Алексеевна Щепочкина | Led lamp bulb |
Also Published As
| Publication number | Publication date |
|---|---|
| BE428543A (en) | |
| GB518016A (en) | 1940-02-15 |
| FR839199A (en) | 1939-03-28 |
| DE725341C (en) | 1942-09-19 |
| BE428542A (en) | |
| CH206539A (en) | 1939-08-15 |
| FR839200A (en) | 1939-03-28 |
| DE699404C (en) | 1940-11-28 |
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