GB978383A - Improvements in photoflash lamp - Google Patents
Improvements in photoflash lampInfo
- Publication number
- GB978383A GB978383A GB47911/62A GB4791162A GB978383A GB 978383 A GB978383 A GB 978383A GB 47911/62 A GB47911/62 A GB 47911/62A GB 4791162 A GB4791162 A GB 4791162A GB 978383 A GB978383 A GB 978383A
- Authority
- GB
- United Kingdom
- Prior art keywords
- thorium
- oxygen
- zirconium
- dec
- 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
- ZSLUVFAKFWKJRC-IGMARMGPSA-N 232Th Chemical compound [232Th] ZSLUVFAKFWKJRC-IGMARMGPSA-N 0.000 abstract 6
- 229910052776 Thorium Inorganic materials 0.000 abstract 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical group [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 4
- 239000001301 oxygen Substances 0.000 abstract 4
- 229910052760 oxygen Inorganic materials 0.000 abstract 4
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 abstract 2
- AXZAYXJCENRGIM-UHFFFAOYSA-J dipotassium;tetrabromoplatinum(2-) Chemical compound [K+].[K+].[Br-].[Br-].[Br-].[Br-].[Pt+2] AXZAYXJCENRGIM-UHFFFAOYSA-J 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- 229910052751 metal Inorganic materials 0.000 abstract 2
- 239000002184 metal Substances 0.000 abstract 2
- 229910001487 potassium perchlorate Inorganic materials 0.000 abstract 2
- 229910052726 zirconium Inorganic materials 0.000 abstract 2
- GDDNTTHUKVNJRA-UHFFFAOYSA-N 3-bromo-3,3-difluoroprop-1-ene Chemical compound FC(F)(Br)C=C GDDNTTHUKVNJRA-UHFFFAOYSA-N 0.000 abstract 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 abstract 1
- 239000000020 Nitrocellulose Substances 0.000 abstract 1
- 239000011324 bead Substances 0.000 abstract 1
- 239000011230 binding agent Substances 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 239000011888 foil Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 abstract 1
- 239000011521 glass Substances 0.000 abstract 1
- 229910052749 magnesium Inorganic materials 0.000 abstract 1
- 239000011777 magnesium Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 229920001220 nitrocellulos Polymers 0.000 abstract 1
- VKJKEPKFPUWCAS-UHFFFAOYSA-M potassium chlorate Chemical compound [K+].[O-]Cl(=O)=O VKJKEPKFPUWCAS-UHFFFAOYSA-M 0.000 abstract 1
- 239000000843 powder Substances 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K5/00—Light sources using charges of combustible material, e.g. illuminating flash devices
- F21K5/02—Light sources using charges of combustible material, e.g. illuminating flash devices ignited in a non-disrupting container, e.g. photo-flash bulb
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Discharge Lamp (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
978,383. Magnesium and like lamps. GENERAL ELECTRIC CO. Dec. 19, 1962 [Dec. 26, 1961], No. 47911/62. Heading G2L. A photoflash lamp having a transparent envelope 1, e.g. of glass, contains actinic material 8 which is unoxidised thorium in oxygen or an oxygen-bearing gas. The thorium metal is at least 95% pure and the proportion of thorium to oxygen is preferably between 5 and 25 milligrams of thorium per cc. of oxygen at atmospheric pressure. Primer material 7 coating the ends of leads 5 at the junction with a bridge wire 6 may be a powdered mixture of a combustible metal such as zirconium and potassium chlorate or potassium perchlorate held together by a binder such as nitrocellulose. The bridge wire 6 may be of tungsten. Instead of using foil or wire 8, the thorium may be included in the primer beads 7, which are then made larger. The thorium is used in powder form and replaces the zirconium. Ammonium perchlorate may be used instead of potassium perchlorate.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US161803A US3191406A (en) | 1961-12-26 | 1961-12-26 | Photoflash lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB978383A true GB978383A (en) | 1964-12-23 |
Family
ID=22582802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB47911/62A Expired GB978383A (en) | 1961-12-26 | 1962-12-19 | Improvements in photoflash lamp |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3191406A (en) |
| ES (1) | ES281496A1 (en) |
| GB (1) | GB978383A (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US594594A (en) * | 1897-11-30 | James a | ||
| US613021A (en) * | 1898-10-25 | Schwaetz | ||
| US1776637A (en) * | 1929-02-28 | 1930-09-23 | Ostermeiel Johannes | Flash lamp |
| US2012866A (en) * | 1932-03-12 | 1935-08-27 | Joseph B Decker | Pyrotechnic composition |
| US2071369A (en) * | 1934-01-24 | 1937-02-23 | Harry A Williams | Flash lamp |
| US2272779A (en) * | 1939-12-27 | 1942-02-10 | Hartford Nat Bank & Trust Co | Flash lamp |
| US2813412A (en) * | 1956-04-30 | 1957-11-19 | Gen Electric | Photoflash lamps |
-
1961
- 1961-12-26 US US161803A patent/US3191406A/en not_active Expired - Lifetime
-
1962
- 1962-10-11 ES ES281496A patent/ES281496A1/en not_active Expired
- 1962-12-19 GB GB47911/62A patent/GB978383A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US3191406A (en) | 1965-06-29 |
| ES281496A1 (en) | 1963-03-01 |
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