GB316612A - - Google Patents
Info
- Publication number
- GB316612A GB316612A GB20710/29A GB2071029A GB316612A GB 316612 A GB316612 A GB 316612A GB 20710/29 A GB20710/29 A GB 20710/29A GB 2071029 A GB2071029 A GB 2071029A GB 316612 A GB316612 A GB 316612A
- Authority
- GB
- United Kingdom
- Prior art keywords
- spiral
- filaments
- places
- pitch
- treuhand
- 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
- 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
- H01K1/00—Details
- H01K1/02—Incandescent bodies
- H01K1/14—Incandescent bodies characterised by the shape
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K7/00—Lamps for purposes other than general lighting
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Working-Up Tar And Pitch (AREA)
Abstract
316,612. General Electric Co., Ltd., (Assignees of Patent-Treuhand-Ges. f³r Elektrische Gliihlampen). Aug. 1, 1928, [Convention date]. Drawings to Specification. Filaments. - To reduce the working temperature at weak or faulty places of greater resistance in spiral filaments, the pitch of the spiral is increased at these places. This may be effected by exposing the filament to a mechanical stress and momentarily incandescing it. The initial pitch of the spiral may be smaller than usual to compensate for the stretching.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE316612T | 1928-08-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB316612A true GB316612A (en) | 1930-03-13 |
Family
ID=31894742
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB20710/29A Expired GB316612A (en) | 1928-08-01 | 1929-07-05 |
Country Status (3)
Country | Link |
---|---|
BE (1) | BE355458A (en) |
GB (1) | GB316612A (en) |
NL (1) | NL24656C (en) |
-
0
- NL NL24656D patent/NL24656C/xx active
- BE BE355458D patent/BE355458A/xx unknown
-
1929
- 1929-07-05 GB GB20710/29A patent/GB316612A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
NL24656C (en) | |
BE355458A (en) |
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