GB1228567A - - Google Patents
Info
- Publication number
- GB1228567A GB1228567A GB1228567DA GB1228567A GB 1228567 A GB1228567 A GB 1228567A GB 1228567D A GB1228567D A GB 1228567DA GB 1228567 A GB1228567 A GB 1228567A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lamp
- fitting
- control equipment
- equipment units
- working element
- 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
- 239000003990 capacitor Substances 0.000 abstract 1
- 239000004020 conductor Substances 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000004804 winding Methods 0.000 abstract 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Circuit Arrangements For Discharge Lamps (AREA)
Abstract
1,228,567. Fluorescent light fitting. M. A. DUBAS, and J. B. AIZENBERG. 12 March, 1969, No. 12966/69. Heading F4R. [Also in Division H2] A fluorescent light fitting comprises at least one fluorescent lamp tube having electrodes which are heated during starting by a current surge, said lamp being supported below a channel 4 serving as trunking for the wiring by control equipment units 2, 3, 19, one at each end of each lamp tube, the control equipment units being interconnected only by the conductors of the supply mains, at least one unit containing a ballast element and each unit comprising a working element to provide starting and heating of at least one adjacent lamp electrode. At least one working element is a capacitor and at least one other working element is a filament transformer, the ballast element being a choke having a compensating winding electrically connected to the filament transformer. The channels 4 are interconnected in a multi-lamp fitting by brackets 21 and the whole fitting is either attached directly to a building structure or suspended by hangers 23. The fitting incorporates louvres 18 and diffusers when used with lamp tubes with internal reflectors, but with ordinary lamp tubes separate reflectors 17 are employed. The control equipment units clip on to the support channel 4.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1296669 | 1969-03-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1228567A true GB1228567A (en) | 1971-04-15 |
Family
ID=10014371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1228567D Expired GB1228567A (en) | 1969-03-12 | 1969-03-12 |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1228567A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5980288A (en) * | 1996-05-12 | 1999-11-09 | Jarvis; George Graham | Flame proof electrical connector |
-
1969
- 1969-03-12 GB GB1228567D patent/GB1228567A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5980288A (en) * | 1996-05-12 | 1999-11-09 | Jarvis; George Graham | Flame proof electrical connector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |