GB481227A - Improvements in and relating to the manufacture of filaments for electric incandescent lamps - Google Patents
Improvements in and relating to the manufacture of filaments for electric incandescent lampsInfo
- Publication number
- GB481227A GB481227A GB3639/37A GB363937A GB481227A GB 481227 A GB481227 A GB 481227A GB 3639/37 A GB3639/37 A GB 3639/37A GB 363937 A GB363937 A GB 363937A GB 481227 A GB481227 A GB 481227A
- Authority
- GB
- United Kingdom
- Prior art keywords
- filaments
- coiled
- core
- electric incandescent
- manufacture
- 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
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical group [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 abstract 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical class O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 abstract 1
- 229920001800 Shellac Polymers 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 239000012153 distilled water Substances 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 230000014759 maintenance of location Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 239000011253 protective coating Substances 0.000 abstract 1
- 239000011241 protective layer Substances 0.000 abstract 1
- 230000000717 retained effect Effects 0.000 abstract 1
- ZLGIYFNHBLSMPS-ATJNOEHPSA-N shellac Chemical compound OCCCCCC(O)C(O)CCCCCCCC(O)=O.C1C23[C@H](C(O)=O)CCC2[C@](C)(CO)[C@@H]1C(C(O)=O)=C[C@@H]3O ZLGIYFNHBLSMPS-ATJNOEHPSA-N 0.000 abstract 1
- 229940113147 shellac Drugs 0.000 abstract 1
- 235000013874 shellac Nutrition 0.000 abstract 1
- 239000004208 shellac Substances 0.000 abstract 1
- 235000011121 sodium hydroxide Nutrition 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 238000004804 winding Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K3/00—Apparatus or processes adapted to the manufacture, installing, removal, or maintenance of incandescent lamps or parts thereof
- H01K3/02—Manufacture of incandescent bodies
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K3/00—Apparatus or processes adapted to the manufacture, installing, removal, or maintenance of incandescent lamps or parts thereof
- H01K3/02—Manufacture of incandescent bodies
- H01K3/04—Machines therefor
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Resistance Heating (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT481227X | 1936-03-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB481227A true GB481227A (en) | 1938-03-08 |
Family
ID=3674940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3639/37A Expired GB481227A (en) | 1936-03-03 | 1937-02-06 | Improvements in and relating to the manufacture of filaments for electric incandescent lamps |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE420117A (enrdf_load_stackoverflow) |
| FR (1) | FR818128A (enrdf_load_stackoverflow) |
| GB (1) | GB481227A (enrdf_load_stackoverflow) |
| NL (1) | NL48159C (enrdf_load_stackoverflow) |
-
0
- BE BE420117D patent/BE420117A/xx unknown
- NL NL48159D patent/NL48159C/xx active
-
1937
- 1937-02-06 GB GB3639/37A patent/GB481227A/en not_active Expired
- 1937-02-20 FR FR818128D patent/FR818128A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE420117A (enrdf_load_stackoverflow) | |
| NL48159C (enrdf_load_stackoverflow) | |
| FR818128A (fr) | 1937-09-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB465119A (en) | Improvements in the manufacture of coiled-coil filaments for incandescent electric lamps and the like | |
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| GB265113A (en) | Improvements in the manufacture of filaments for electric incandescent lamps | |
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| CH224493A (de) | Verfahren zur Herstellung einer indirekt geheizten Kathode für elektrische Entladungsröhren und nach diesem Verfahren hergestellte Kathode. | |
| GB481964A (en) | Filaments for electric incandescent lamps and method of manufacturing the same | |
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