GB592248A - Improvements relating to electric discharge lamps - Google Patents
Improvements relating to electric discharge lampsInfo
- Publication number
- GB592248A GB592248A GB677545A GB677545A GB592248A GB 592248 A GB592248 A GB 592248A GB 677545 A GB677545 A GB 677545A GB 677545 A GB677545 A GB 677545A GB 592248 A GB592248 A GB 592248A
- Authority
- GB
- United Kingdom
- Prior art keywords
- envelope
- strip
- shells
- metal
- earthed
- 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 3
- 239000002184 metal Substances 0.000 abstract 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 abstract 2
- 229920002301 Cellulose acetate Polymers 0.000 abstract 1
- 229940079938 Nitrocellulose Drugs 0.000 abstract 1
- 239000000020 Nitrocellulose Substances 0.000 abstract 1
- 239000004115 Sodium Silicate Substances 0.000 abstract 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N Sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 abstract 1
- FJWGYAHXMCUOOM-QHOUIDNNSA-N [(2S,3R,4S,5R,6R)-2-[(2R,3R,4S,5R,6S)-4,5-dinitrooxy-2-(nitrooxymethyl)-6-[(2R,3R,4S,5R,6S)-4,5,6-trinitrooxy-2-(nitrooxymethyl)oxan-3-yl]oxyoxan-3-yl]oxy-3,5-dinitrooxy-6-(nitrooxymethyl)oxan-4-yl] nitrate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](O[N+]([O-])=O)[C@H]1O[N+]([O-])=O)O[C@H]1[C@@H]([C@@H](O[N+]([O-])=O)[C@H](O[N+]([O-])=O)[C@@H](CO[N+]([O-])=O)O1)O[N+]([O-])=O)CO[N+](=O)[O-])[C@@H]1[C@@H](CO[N+]([O-])=O)O[C@@H](O[N+]([O-])=O)[C@H](O[N+]([O-])=O)[C@H]1O[N+]([O-])=O FJWGYAHXMCUOOM-QHOUIDNNSA-N 0.000 abstract 1
- 229940081735 acetylcellulose Drugs 0.000 abstract 1
- 239000004411 aluminium Substances 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 1
- 229940072049 amyl acetate Drugs 0.000 abstract 1
- 229910052786 argon Inorganic materials 0.000 abstract 1
- 239000011230 binding agent Substances 0.000 abstract 1
- 239000003575 carbonaceous material Substances 0.000 abstract 1
- 239000004568 cement Substances 0.000 abstract 1
- 239000004020 conductor Substances 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 1
- 239000010949 copper Substances 0.000 abstract 1
- 238000005530 etching Methods 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
- 239000007769 metal material Substances 0.000 abstract 1
- 150000002739 metals Chemical class 0.000 abstract 1
- 229910052754 neon Inorganic materials 0.000 abstract 1
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon(0) Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 abstract 1
- -1 nitro-cellulose Chemical compound 0.000 abstract 1
- 229920001220 nitrocellulos Polymers 0.000 abstract 1
- 238000005488 sandblasting Methods 0.000 abstract 1
- 229910052911 sodium silicate Inorganic materials 0.000 abstract 1
- 238000005507 spraying Methods 0.000 abstract 1
- 229910052718 tin Inorganic materials 0.000 abstract 1
- 239000011135 tin Substances 0.000 abstract 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N tin hydride Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 abstract 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 abstract 1
- 229910052725 zinc Inorganic materials 0.000 abstract 1
- 239000011701 zinc 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
- H01J61/54—Igniting arrangements, e.g. promoting ionisation for starting
- H01J61/541—Igniting arrangements, e.g. promoting ionisation for starting using a bimetal switch
Landscapes
- Discharge Lamps And Accessories Thereof (AREA)
Abstract
592,248. Discharge lamps. SIEMENS ELECTRIC LAMPS & SUPPLIES, Ltd., and STEPHENS, G. O. March 17, 1945, Nos. 6775 and 10709. [Class 39 (i)] A fluorescent lamp 1 has an ignition strip 8 on the exterior of the envelope, consisting of a deposit of conducting material such as comminuted metal or carbonaceous material, which is not connected to either electrode, but is earthed. The envelope may be previously roughened by sand blasting or etching or may be grooved. Suitable metals are aluminium, zinc, tin, or copper and a binder such as nitro-cellulose, amyl or cellulose acetate may be used or the metal may be sprayed directly through a suitable templet. A cement such as sodium silicate may be applied to the envelope before spraying. The strip may terminate in bands round the envelope as indicated at 9 or by bands overlapping the metal shells of the contact caps as at 10 or the strip may end on these shells. When the strip is not connected to the shells of the caps it may be earthed through a spring member attached to the lamp socket or to the fitting housing the socket. The circuit includes an autotransformer to start the discharge when the electrodes have reached a predetermined temperature. The filling is argon or neon at a pressure of 2 to 6 mms. mercury..
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB592248A true GB592248A (en) | 1947-09-11 |
Family
ID=1628730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB677545A Expired GB592248A (en) | 1945-03-17 | Improvements relating to electric discharge lamps |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB592248A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE977321C (en) * | 1950-04-13 | 1965-12-16 | Gen Electric | Low-pressure gas discharge lamp and circuit arrangement for their ignition and operation |
-
1945
- 1945-03-17 GB GB677545A patent/GB592248A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE977321C (en) * | 1950-04-13 | 1965-12-16 | Gen Electric | Low-pressure gas discharge lamp and circuit arrangement for their ignition and operation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1414442A (en) | High pressure discharge lamp | |
| GB478368A (en) | Improvements in or relating to the manufacture of electric discharge devices | |
| GB592248A (en) | Improvements relating to electric discharge lamps | |
| GB434028A (en) | Improvements in and relating to electric discharge devices | |
| GB352756A (en) | Improvements in and relating to gaseous electric discharge devices | |
| GB630547A (en) | Improvements in and relating to electric discharge lamps | |
| GB1487480A (en) | High-pressure sodium-vapour discharge lamp | |
| JPS53675A (en) | Apparaus for lighting high pressure steam discharge lamp | |
| GB1347793A (en) | Ignition arrangement for a discharge tube | |
| JPS57157453A (en) | High pressure electric-discharge lamp | |
| JPS57157451A (en) | High pressure electric-discharge lamp | |
| GB687195A (en) | Improvements in apparatus comprising an electric discharge lamp for producing flashes of light | |
| GB670561A (en) | Improvements in or relating to electron discharge devices employing secondary-electron emission and electrodes for use therein | |
| GB1152289A (en) | Low-Pressure Mercury-Vapour Discharge Lamp | |
| FR2326812A1 (en) | Electromagnetic wave receiver anti-atmospheric protection - has miniature rod conductor in plug connector in sealed sleeve | |
| GB1393673A (en) | Electrodeless discharge devices | |
| GB690472A (en) | Improvements in or relating to electric discharge tubes | |
| JPS57157454A (en) | High pressure electric discharge lamp | |
| GB257544A (en) | Improvements in or relating to electric luminous discharge tubes | |
| ES249153A1 (en) | Improvements relating to electric discharge lamps | |
| GB522106A (en) | Improvements in high-pressure metal-vapour electric discharge lamps | |
| GB959298A (en) | Overvoltage protector in the form of a gas discharge tube | |
| JPS55136450A (en) | High pressure metallic vapor discharge lamp | |
| GB756567A (en) | Improvements relating to electric flash discharge lamps | |
| JPS57138771A (en) | High pressure discharge lamp |