GB1080606A - Improvements in or relating to arc lamps - Google Patents
Improvements in or relating to arc lampsInfo
- Publication number
- GB1080606A GB1080606A GB47654/65A GB4765465A GB1080606A GB 1080606 A GB1080606 A GB 1080606A GB 47654/65 A GB47654/65 A GB 47654/65A GB 4765465 A GB4765465 A GB 4765465A GB 1080606 A GB1080606 A GB 1080606A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bridgewire
- anode
- lamp
- cathode
- wire
- 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
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/98—Lamps with closely spaced electrodes heated to incandescence by light-emitting discharge, e.g. tungsten arc lamp
Landscapes
- Discharge Lamps And Accessories Thereof (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
1,080,606. Discharge lamps. PEK LABS Inc. Nov. 10, 1965 [March 15, 1965], No. 47654/65. Heading H1D. In an arc lamp similar to that described in Specification 1,042,213, and comprising a conductive bridgewire 70 disposed axially across the arc gap and conductively coupled to the anode 50 and cathode 54 of the lamp, the bridgewire being such that it fuses upon application of normal low-voltage operating power between the anode and cathode so that the lamp may be used for single start operation without the need for a high voltage starting power supply, the bridgewire is of uniform cross-sectional area. The fusible bridgewire may be of Fe, Cu, W, Mo, Pt or Ta and may comprise a single strand secured in slots disposed on opposite sides of the anode and cathode, Fig. 2 (not shown), or two strands twisted together as shown. In the latter case the electrode spacing may be adjusted by twisting the electrodes in opposite directions until the wire is properly tensioned. The ends of the wire may be welded to the anode or secured thereto by means of Pt tabs. Specific dimensions of the bridgewire are given. The lamp may contain hydrogen or xenon at 3 to 15 atmospheres at room temperature.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US439757A US3274427A (en) | 1965-03-15 | 1965-03-15 | Self-starting arc lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1080606A true GB1080606A (en) | 1967-08-23 |
Family
ID=23746018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB47654/65A Expired GB1080606A (en) | 1965-03-15 | 1965-11-10 | Improvements in or relating to arc lamps |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US3274427A (en) |
| GB (1) | GB1080606A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3377497A (en) * | 1965-03-15 | 1968-04-09 | Pek Labs Inc | Self-starting arc lamp |
| US3488547A (en) * | 1966-12-15 | 1970-01-06 | Hughes Aircraft Co | Method for flashlamp stabilization |
| US3515926A (en) * | 1968-02-12 | 1970-06-02 | Us Army | Arc lamp with fuse wire and biasing support means therefor |
| US3521114A (en) * | 1968-10-01 | 1970-07-21 | Union Carbide Corp | Automatic starting arc lamp |
| US3610866A (en) * | 1969-08-08 | 1971-10-05 | United States Steel Corp | Electric-arc-burning lance with or without fluid flow passageways |
| US3649863A (en) * | 1970-07-02 | 1972-03-14 | Engelhard Hanovia Inc | Electrical discharge lamp |
| US4504955A (en) * | 1982-08-13 | 1985-03-12 | At&T Bell Laboratories | Low voltage operation of arc discharge devices |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US412599A (en) * | 1889-10-08 | Process of electric welding | ||
| US1898060A (en) * | 1919-09-11 | 1933-02-21 | Gen Electric | Method and apparatus for electric arc welding |
| GB512286A (en) * | 1938-07-29 | 1939-08-31 | Gen Electric Co Ltd | Improvements in high-pressure metal-vapour electric discharge devices |
| US2391611A (en) * | 1944-06-27 | 1945-12-25 | Gastro Photor Lab Corp | Illuminating arrangement |
| US2472923A (en) * | 1945-11-22 | 1949-06-14 | Soudure Electr Autogene Sa | Method for striking the welding arc in automatic electric-arc welding machines |
-
1965
- 1965-03-15 US US439757A patent/US3274427A/en not_active Expired - Lifetime
- 1965-11-10 GB GB47654/65A patent/GB1080606A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US3274427A (en) | 1966-09-20 |
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