GB645226A - Improvements in or relating to electric lighting fittings - Google Patents
Improvements in or relating to electric lighting fittingsInfo
- Publication number
- GB645226A GB645226A GB1063348A GB1063348A GB645226A GB 645226 A GB645226 A GB 645226A GB 1063348 A GB1063348 A GB 1063348A GB 1063348 A GB1063348 A GB 1063348A GB 645226 A GB645226 A GB 645226A
- Authority
- GB
- United Kingdom
- Prior art keywords
- plate
- lampholder
- fitting
- channel member
- sides
- 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
-
- 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
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/0075—Fastening of light sources or lamp holders of tubular light sources, e.g. ring-shaped fluorescent light sources
- F21V19/008—Fastening of light sources or lamp holders of tubular light sources, e.g. ring-shaped fluorescent light sources of straight tubular light sources, e.g. straight fluorescent tubes, soffit lamps
Abstract
645,226. Fluorescent lighting fittings. STUDHOLME, J., and BENJAMIN ELECTRIC, Ltd. April 16, 1948, No. 10633. [Classes 75(iii) and 75(iv)] An electric lighting fitting comprises a channel section body member and a mounting plate carrying a lampholder, the mounting plate being detachably mountable on opposed ledges at the sides of the channel section body and arranged to be retained thereon by spring retaining means inside the body member. As shown a fitting tor a double ended fluorescent lamp comprises a channel member housing a choke 10 and a capacitor 11 and having its edges 4 turned inwardly to form supporting ledges for lampholder mounting plates 3 arranged one at each end of the fitting. Each plate 3 is formed with inturned flanges 6, 6a, Fig. 6, which support a lampholder housing 2 slidably mounted thereon to facilitate making the connection to the lamp. Bowed leaf springs 5, 5a secured to the sides of the channel member 1 at each end thereof engage recesses 7, 7a formed in the sides of each mounting plate to locate it in its correct position. The mounting plate may be assembled in the fitting by entering it diagonally into the channel member 1, resting one side on a ledge 4 (as shown chain-dotted in Fig. 3) and pulling the plate down until the other side rides over the appropriate leaf spring (5a) and rests on the ledge 4a. Alternatively the sides of the plate may be tapered slightly to form a lead as shown in Fig. 6 and the plate entered centrally of the fitting and slid along to the end thereof until the leaf springs engage the recesses 7, 7a. The open bottom of the channel member 1 may be closed by a plain closure plate or by the upper surface of a reflector, supported in either case by wing nuts 15 engaging support rods 14. Where a reflector is used, apertures are provided in its upper surface to pass over the lampholder housings 2. Fig. 5 shows the plate 3 mounted with the lampholder 2 disposed inside the channel member for transport purposes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1063348A GB645226A (en) | 1948-04-16 | 1948-04-16 | Improvements in or relating to electric lighting fittings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1063348A GB645226A (en) | 1948-04-16 | 1948-04-16 | Improvements in or relating to electric lighting fittings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB645226A true GB645226A (en) | 1950-10-25 |
Family
ID=9971470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1063348A Expired GB645226A (en) | 1948-04-16 | 1948-04-16 | Improvements in or relating to electric lighting fittings |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB645226A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE962004C (en) * | 1954-03-16 | 1957-04-18 | Licentia Gmbh | Socket for tubular lamps, especially fluorescent lamps |
| DE1021074B (en) * | 1954-04-09 | 1957-12-19 | Licentia Gmbh | Arrangement for attaching sockets for fluorescent lamps and other tubular lamps on the luminaire body |
| DE1027792B (en) * | 1952-04-19 | 1958-04-10 | Hoppmann & Mulsow | Device for attaching sockets or other accessories for fluorescent lamps or similar tubular lamps in lights with tub or shell-shaped housings |
-
1948
- 1948-04-16 GB GB1063348A patent/GB645226A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1027792B (en) * | 1952-04-19 | 1958-04-10 | Hoppmann & Mulsow | Device for attaching sockets or other accessories for fluorescent lamps or similar tubular lamps in lights with tub or shell-shaped housings |
| DE962004C (en) * | 1954-03-16 | 1957-04-18 | Licentia Gmbh | Socket for tubular lamps, especially fluorescent lamps |
| DE1021074B (en) * | 1954-04-09 | 1957-12-19 | Licentia Gmbh | Arrangement for attaching sockets for fluorescent lamps and other tubular lamps on the luminaire body |
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