GB728263A - Improvements in and relating to electric incandescent lamps - Google Patents
Improvements in and relating to electric incandescent lampsInfo
- Publication number
- GB728263A GB728263A GB5880/53A GB588053A GB728263A GB 728263 A GB728263 A GB 728263A GB 5880/53 A GB5880/53 A GB 5880/53A GB 588053 A GB588053 A GB 588053A GB 728263 A GB728263 A GB 728263A
- Authority
- GB
- United Kingdom
- Prior art keywords
- filament
- electric incandescent
- chamber
- bulb
- march
- 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
- H01K1/00—Details
- H01K1/40—Leading-in conductors
Abstract
728,263. Electric incandescent lamps. BRITISH THOMSON-HOUSTON CO., Ltd. March 1, 1954 [March 3, 1953], No. 5880/53. Class 39 (2). In order to minimize the effect of vibration and mechanical shock upon the filament of an electric incandescent lamp the leading-in wires 3 are extended by equal amounts beyond their connections with the ends of the filament 5 and terminate within a cylindrical or frusto-conical chamber 2 formed in the end wall of the bulb, with its axis in alignment with the axis of the bulb, the maximum width of the open end of the chamber being less than the greatest spacing between the extended portions of the leading-in wires so that the ends in the chamber are resiliently held apart from each other. The invention is applicable more particularly to lamps for motor cars and cycles, wherein it is desirable that the filament should retain a definite position relative to the cap 7.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5880/53A GB728263A (en) | 1953-03-03 | 1953-03-03 | Improvements in and relating to electric incandescent lamps |
| US413674A US2845569A (en) | 1953-03-03 | 1954-03-02 | Electric incandescent lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5880/53A GB728263A (en) | 1953-03-03 | 1953-03-03 | Improvements in and relating to electric incandescent lamps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB728263A true GB728263A (en) | 1955-04-13 |
Family
ID=9804347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5880/53A Expired GB728263A (en) | 1953-03-03 | 1953-03-03 | Improvements in and relating to electric incandescent lamps |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2845569A (en) |
| GB (1) | GB728263A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1119408B (en) * | 1955-03-18 | 1961-12-14 | British Thomson Houston Co Ltd | Electric light bulb |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US406498A (en) * | 1889-07-09 | Strom | ||
| US988308A (en) * | 1910-04-18 | 1911-04-04 | Vacuum Glass Company | Incandescent lamp. |
| US1983362A (en) * | 1934-04-24 | 1934-12-04 | Gen Electric | Electric incandescent lamp |
| US2132368A (en) * | 1936-03-13 | 1938-10-04 | Gen Electric | Electric lamp and method of manufacture thereof |
-
1953
- 1953-03-03 GB GB5880/53A patent/GB728263A/en not_active Expired
-
1954
- 1954-03-02 US US413674A patent/US2845569A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1119408B (en) * | 1955-03-18 | 1961-12-14 | British Thomson Houston Co Ltd | Electric light bulb |
Also Published As
| Publication number | Publication date |
|---|---|
| US2845569A (en) | 1958-07-29 |
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