GB627893A - Improvements in and relating to electric lamp holders for tubular electric lamps - Google Patents
Improvements in and relating to electric lamp holders for tubular electric lampsInfo
- Publication number
- GB627893A GB627893A GB1957/46A GB195746A GB627893A GB 627893 A GB627893 A GB 627893A GB 1957/46 A GB1957/46 A GB 1957/46A GB 195746 A GB195746 A GB 195746A GB 627893 A GB627893 A GB 627893A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lamp
- contacts
- relating
- electric
- tubular
- 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
Landscapes
- Fastening Of Light Sources Or Lamp Holders (AREA)
Abstract
627,893. Lamp caps and holders. BRITISH THOMSON-HOUSTON CO., Ltd. Jan. 21, 1946, No. 1957. Convention date, Jan. 22, 1945. [Class 38 (i)] A holder 3 for a tubular lamp 1 with two pin contacts at each end, or, as shown, with single screw end-contacts 2, comprises a housing provided with an open end 10 through which the lamp-end is inserted to be received in a U- clip contact 11, open to the end 10, at which a housing wall is cut to provide a lamp-end positioning recess 22 behind which are normallyopen contacts 17, 18, which are bridged by a slidable member 14 which locks the lamp end in the holder, but is prevented by the contact 11 from closing the end 10 when no lamp is in place. The contacts 17, 18 are preferably in series with the primary of a supply transformer while the contacts 11 are connected to the secondary (Fig. 6, not shown). The Specification also describes a circuit using an autotransformer. The member 14 is provided with a shorting bar 19 and may be chained to the housing. Specification 627,556 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US627893XA | 1945-01-22 | 1945-01-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB627893A true GB627893A (en) | 1949-08-18 |
Family
ID=22044818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1957/46A Expired GB627893A (en) | 1945-01-22 | 1946-01-21 | Improvements in and relating to electric lamp holders for tubular electric lamps |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB627893A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2179207A (en) * | 1985-07-24 | 1987-02-25 | Ensel Electric Co Ltd | Strip light holder |
-
1946
- 1946-01-21 GB GB1957/46A patent/GB627893A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2179207A (en) * | 1985-07-24 | 1987-02-25 | Ensel Electric Co Ltd | Strip light holder |
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