GB502603A - Improvements in and relating to electric discharge lamps - Google Patents
Improvements in and relating to electric discharge lampsInfo
- Publication number
- GB502603A GB502603A GB30246/38A GB3024638A GB502603A GB 502603 A GB502603 A GB 502603A GB 30246/38 A GB30246/38 A GB 30246/38A GB 3024638 A GB3024638 A GB 3024638A GB 502603 A GB502603 A GB 502603A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lamp
- jacket
- wires
- contacts
- well
- 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
- 229910052751 metal Inorganic materials 0.000 abstract 4
- 239000002184 metal Substances 0.000 abstract 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 abstract 4
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 abstract 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 2
- 239000011521 glass Substances 0.000 abstract 2
- 239000003973 paint Substances 0.000 abstract 2
- 229910052697 platinum Inorganic materials 0.000 abstract 2
- 229910052786 argon Inorganic materials 0.000 abstract 1
- 239000011324 bead Substances 0.000 abstract 1
- 239000004020 conductor Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 abstract 1
- 229910052753 mercury Inorganic materials 0.000 abstract 1
- 239000010445 mica Substances 0.000 abstract 1
- 229910052618 mica group Inorganic materials 0.000 abstract 1
- 229910052757 nitrogen Inorganic materials 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 abstract 1
- 229910052721 tungsten Inorganic materials 0.000 abstract 1
- 239000010937 tungsten Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/30—Vessels; Containers
- H01J61/34—Double-wall vessels or containers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/20—Check valves specially designed for inflatable bodies, e.g. tyres
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
502,603. Discharge lamps. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 19, 1938, No. 30246. Convention date, Oct. 19, 1937. [Class 39 (i)] A lamp 19 is supported within a jacket 10 through its leading-in wires, which are large enouth to conduct heat to maintain the temperature of the ends of the lamp, and is closed at its ends by thin metal members 20 sealed at their edges to the envelope. The jacket has contacts 12, as described in Specification 471,301, [Group XXXVI], and leading-in wires 26, 27 which are clamped or welded in bores in the conductors 16, and hold the lamp terminals 22. The lower terminal 22 may be additionally supported in a well 28 in the jacket. The contacts and terminals are sealed through flexible metal cups 18, 20 into the edges of the hard-glass containers; intermediate glass rings or beads 21 may be used for sealing. The electrodes comprise sintered tungsten particles impregnated with emissive oxide as described in Specification 499,570. A starting electrode is connected to one terminal through a resistance, housed in an insulating casing 30 by means of a metal strip 31, which is embedded in the casing and welded to a lead 16. Mercury, which is completely evaporated during operation to provide an atmosphere of two atmospheres is provided ; starting is facilitated by argon at 6-8 mms. A heat-reflecting material such as platinum paint is provided on the exhausting pip. Nitrogen or air at one atmosphere may be provided in the outer jacket. To maintain the temperature of the lower end of the lamp, the lower end is conical and is coated with platinum paint. Conduction of the heat from the lamp ends may be reduced by undercutting the leads, e.g. as shown at 37, 38. The well 28 may be dispensed with, the lower end of the lamp being registered by a mica star-shaped disc secured to the lower contact 22 by a metal eyelet. The contacts 22 may be replaced by wires and the lower wire may terminate in a spiral housed in the well 28.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US169829A US2121638A (en) | 1937-10-19 | 1937-10-19 | Electric discharge device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB502603A true GB502603A (en) | 1939-03-21 |
Family
ID=22617346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB30246/38A Expired GB502603A (en) | 1937-10-19 | 1938-10-19 | Improvements in and relating to electric discharge lamps |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2121638A (en) |
| BE (1) | BE502603A (en) |
| FR (1) | FR844915A (en) |
| GB (1) | GB502603A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2157882A (en) * | 1984-03-29 | 1985-10-30 | Tungsram Reszvenytarsasag | High pressure sodium-vapour or metal halide lamp for direct current operation |
| GB2437611A (en) * | 2006-03-30 | 2007-10-31 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Electrical connections in a high-pressure discharge lamp |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2749461A (en) * | 1953-04-30 | 1956-06-05 | Westinghouse Electric Corp | Lamp unit and inner member support |
| US4181869A (en) * | 1978-03-06 | 1980-01-01 | Gte Sylvania Incorporated | Tungsten halogen lamp in reflector envelope |
| US8035304B2 (en) * | 2008-03-06 | 2011-10-11 | General Electric Company | Ceramic high intensity discharge lamp having uniquely shaped shoulder |
| DE202019101580U1 (en) * | 2019-03-20 | 2020-06-30 | Otto Fuchs - Kommanditgesellschaft - | Profile network |
-
0
- BE BE502603D patent/BE502603A/xx unknown
-
1937
- 1937-10-19 US US169829A patent/US2121638A/en not_active Expired - Lifetime
-
1938
- 1938-10-19 GB GB30246/38A patent/GB502603A/en not_active Expired
- 1938-10-19 FR FR844915D patent/FR844915A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2157882A (en) * | 1984-03-29 | 1985-10-30 | Tungsram Reszvenytarsasag | High pressure sodium-vapour or metal halide lamp for direct current operation |
| GB2437611A (en) * | 2006-03-30 | 2007-10-31 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Electrical connections in a high-pressure discharge lamp |
| GB2437611B (en) * | 2006-03-30 | 2011-03-02 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | High-pressure discharge lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| FR844915A (en) | 1939-08-04 |
| US2121638A (en) | 1938-06-21 |
| BE502603A (en) |
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