GB604237A - Improvements in electric lighting systems for tubular lamps and holders for use therein - Google Patents
Improvements in electric lighting systems for tubular lamps and holders for use thereinInfo
- Publication number
- GB604237A GB604237A GB28860/45A GB2886045A GB604237A GB 604237 A GB604237 A GB 604237A GB 28860/45 A GB28860/45 A GB 28860/45A GB 2886045 A GB2886045 A GB 2886045A GB 604237 A GB604237 A GB 604237A
- Authority
- GB
- United Kingdom
- Prior art keywords
- holders
- switch
- holder
- lamp
- cap
- 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
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R33/00—Coupling devices specially adapted for supporting apparatus and having one part acting as a holder providing support and electrical connection via a counterpart which is structurally associated with the apparatus, e.g. lamp holders; Separate parts thereof
- H01R33/05—Two-pole devices
- H01R33/06—Two-pole devices with two current-carrying pins, blades or analogous contacts, having their axes parallel to each other
- H01R33/08—Two-pole devices with two current-carrying pins, blades or analogous contacts, having their axes parallel to each other for supporting tubular fluorescent lamp
- H01R33/0836—Two-pole devices with two current-carrying pins, blades or analogous contacts, having their axes parallel to each other for supporting tubular fluorescent lamp characterised by the lamp holding means
- H01R33/0845—Two-pole devices with two current-carrying pins, blades or analogous contacts, having their axes parallel to each other for supporting tubular fluorescent lamp characterised by the lamp holding means with axially resilient member
Landscapes
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Fastening Of Light Sources Or Lamp Holders (AREA)
Abstract
604,237. Lamp caps and holders. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 31, 1945, No. 28860. Convention date, Nov. 7, 1944. [Class 38 (i)] In a series high-voltage lighting system for tubular lamps having caps, more particularly of the type described in Specification 599,297, the primary of the supply transformer is connected in series through switches, incorporated in the lamp holders and actuated when the lamps are inserted, An end holder 2 comprises a body 5 with chambers 6, 7, the chamber 6 having a spring-loaded contact 14 in a slidable bearer 15 for the lamp cap. The chamber 7 has a lead 13 connected to a terminal 11 for the transformer secondary winding 54. A holder 3 carries a spring-loaded contact 31 one end of which has a lead 27 for the terminal 25 for the secondary winding 54. A switch 33, 34 adjacent the contact 31 is connected in the primary winding 53 through terminals 35, 36. The blade which is biassed from the blade 33 is actuated by the lamp cap 42 to close the switch. A recess 45 engaging the cap flange limits the movement of the cap in the holder 3. As shown, the holders 2, 3 are combined in one structure to form an intermediate holder 4, the switch 33a, 34a being in series with the switch 33, 34 in the circuit of the primary winding 53.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US604237XA | 1944-11-07 | 1944-11-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB604237A true GB604237A (en) | 1948-06-30 |
Family
ID=22029380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB28860/45A Expired GB604237A (en) | 1944-11-07 | 1945-10-31 | Improvements in electric lighting systems for tubular lamps and holders for use therein |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB604237A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3710278A1 (en) * | 1987-03-28 | 1988-10-06 | Ceag Licht & Strom | Arrangement for monitoring a fluorescent lamp |
-
1945
- 1945-10-31 GB GB28860/45A patent/GB604237A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3710278A1 (en) * | 1987-03-28 | 1988-10-06 | Ceag Licht & Strom | Arrangement for monitoring a fluorescent lamp |
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