GB428838A - Improvements in electric discharge tubes - Google Patents
Improvements in electric discharge tubesInfo
- Publication number
- GB428838A GB428838A GB3988/35A GB398835A GB428838A GB 428838 A GB428838 A GB 428838A GB 3988/35 A GB3988/35 A GB 3988/35A GB 398835 A GB398835 A GB 398835A GB 428838 A GB428838 A GB 428838A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tube
- secured
- saddle
- cap
- clasp
- 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
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 abstract 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract 2
- 229910052751 metal Inorganic materials 0.000 abstract 2
- 239000002184 metal Substances 0.000 abstract 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 abstract 1
- 229910052786 argon Inorganic materials 0.000 abstract 1
- 239000010425 asbestos Substances 0.000 abstract 1
- 229910052793 cadmium Inorganic materials 0.000 abstract 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 abstract 1
- 229910052754 neon Inorganic materials 0.000 abstract 1
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 abstract 1
- 229910052759 nickel Inorganic materials 0.000 abstract 1
- 229910052573 porcelain Inorganic materials 0.000 abstract 1
- 229910052895 riebeckite Inorganic materials 0.000 abstract 1
- 229910052708 sodium Inorganic materials 0.000 abstract 1
- 239000011734 sodium 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
- H01J61/547—Igniting arrangements, e.g. promoting ionisation for starting using an auxiliary electrode outside the vessel
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
- H01J5/50—Means forming part of the tube or lamps for the purpose of providing electrical connection to it
- H01J5/54—Means forming part of the tube or lamps for the purpose of providing electrical connection to it supported by a separate part, e.g. base
- H01J5/58—Means for fastening the separate part to the vessel, e.g. by cement
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
- Discharge Lamps And Accessories Thereof (AREA)
Abstract
428,838. Discharge apparatus. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. Feb. 7, 1935, No. 3988. Convention date, April 19, 1934. [Class 39 (i)] A vapour filled tube attaining a temperature in excess of 200 C. during operation is folded to form four parallel parts, and the cap is secured to the tube at a point between the ends so that the ends are free to expand. The tube may be a lamp, and may contain sodium, cadmium or other difficultly volatile metal together with neon and a small percentage of argon and may be enclosed in a double-walled evacuated vessel. In the form shown, the tube 1 has a clasp 7 secured around its middle by a screw 8. The clasp 7 is secured to a nickel saddle 6 on the porcelain cap 5, and is lined on the underside with asbestos 9. The saddle 6 is secured to the cap 5 by a pin 10 and a nut 11, and may serve as an auxiliary electrode, the pin 10 being shaped as a plug contact. The wall of the tube touching the saddle 6 is then sprayed by metal by the Schoop process. The supply wires 14 to the electrodes 3, 4 are sufficiently slack to allow the ends 2 of the tube to expand freely.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL428838X | 1934-04-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB428838A true GB428838A (en) | 1935-05-20 |
Family
ID=19786131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3988/35A Expired GB428838A (en) | 1934-04-19 | 1935-02-07 | Improvements in electric discharge tubes |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2200940A (en) |
| DE (1) | DE642389C (en) |
| FR (1) | FR789000A (en) |
| GB (1) | GB428838A (en) |
| NL (1) | NL38910C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2794906A (en) * | 1954-06-16 | 1957-06-04 | Harold E Edgerton | Gaseous-discharge apparatus |
| DE1110754B (en) * | 1958-09-05 | 1961-07-13 | Philips Nv | Light source consisting of at least one tubular discharge lamp |
| NL7801635A (en) * | 1978-02-14 | 1979-08-16 | Philips Nv | LOW PRESSURE SODIUM VAPOR DISCHARGE LAMP. |
| NL7810672A (en) * | 1978-10-26 | 1980-04-29 | Philips Nv | LOW-PRESSURE MERCURY DISCHARGE LAMP. |
| US4300073A (en) * | 1979-02-13 | 1981-11-10 | Westinghouse Electric Corp. | Screw-in type lighting unit having a convoluted tridimensional fluorescent lamp |
| US4337414A (en) * | 1979-11-26 | 1982-06-29 | Westinghouse Electric Corp. | Compact fluorescent lamp having convoluted tubular envelope of tridimensional configuration, method of making such envelope, and lighting unit incorporating such lamp |
-
0
- NL NL38910D patent/NL38910C/xx active
-
1935
- 1935-02-07 GB GB3988/35A patent/GB428838A/en not_active Expired
- 1935-03-28 DE DEN37964D patent/DE642389C/en not_active Expired
- 1935-04-18 FR FR789000D patent/FR789000A/en not_active Expired
- 1935-04-18 US US17082A patent/US2200940A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US2200940A (en) | 1940-05-14 |
| FR789000A (en) | 1935-10-21 |
| DE642389C (en) | 1937-03-03 |
| NL38910C (en) |
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