GB1204624A - Electric lamps - Google Patents
Electric lampsInfo
- Publication number
- GB1204624A GB1204624A GB872868A GB872868A GB1204624A GB 1204624 A GB1204624 A GB 1204624A GB 872868 A GB872868 A GB 872868A GB 872868 A GB872868 A GB 872868A GB 1204624 A GB1204624 A GB 1204624A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cap
- seal
- lugs
- envelope
- wedge
- 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
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
- H01J5/50—Means forming part of the tube or lamps for the purpose of providing electrical connection to it
- H01J5/54—Means forming part of the tube or lamps for the purpose of providing electrical connection to it supported by a separate part, e.g. base
- H01J5/58—Means for fastening the separate part to the vessel, e.g. by cement
- H01J5/60—Means for fastening the separate part to the vessel, e.g. by cement for fastening by mechanical means
Landscapes
- Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
- Fastening Of Light Sources Or Lamp Holders (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
1,204,624. Capping incandescent and discharge lamps. THORN LIGHTING Ltd. 20 Feb., 1969 [22 Feb., 1968], No. 8728/68. Headings H1D and H1F. An electric lamp, having its envelope closed by a wedge seal through which at least one terminal lead passes, is fitted with an end cap formed with seating structures which receive and support the wedge seal, and the or each terminal lead is secured to the cap so as to hold the seal against the structures and prevent relative axial movement between the envelope and the cap. The figure shows an incandescent filament lamp having an envelope 12 closed by a wedge seal 14 and a cap 17 having internal lugs 21-24 co-operating with the sides of the seal. The lugs are formed by making V-shaped cuts in the wall of the cap and bending the cut metal parts inwardly, the cuts being so located and formed that the lugs fit the sides of the seal. The lead wires 15 pass through holes in the base 18 of the cap where they are welded or soldered to the cap. In a modification, Figs. 4 and 5 (not shown), the seating structures are constituted by an annular ring of suitable material sealed within the cap and provided with tapered recesses to receive the wedge seal. In a further modification, Figs. 6-8 (not shown), the cut-out lugs of the first embodiment are replaced by two pairs of indentations on the side wall of the cap. The invention may also be applied to fluorescent and discharge lamps and the caps may be of the bayonet, Edison screw or two-pin type.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB872868A GB1204624A (en) | 1968-02-22 | 1968-02-22 | Electric lamps |
| DE19691908641 DE1908641C3 (en) | 1968-02-22 | 1969-02-21 | lamp |
| NL6902720A NL154055B (en) | 1968-02-22 | 1969-02-21 | LAMP WITH A SEALED COVER FITTED WITH AN ALMOST CYLINDRICAL SHELL. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB872868A GB1204624A (en) | 1968-02-22 | 1968-02-22 | Electric lamps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1204624A true GB1204624A (en) | 1970-09-09 |
Family
ID=9858118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB872868A Expired GB1204624A (en) | 1968-02-22 | 1968-02-22 | Electric lamps |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE1908641C3 (en) |
| GB (1) | GB1204624A (en) |
| NL (1) | NL154055B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3746907A (en) * | 1971-09-08 | 1973-07-17 | Westinghouse Electric Corp | End cap configuration for ceramic discharge lamp |
| GB2146172A (en) * | 1983-07-19 | 1985-04-11 | Asia Electric Ind Corp | Improvements in or relating to electric lamp bulbs |
| GB2152746A (en) * | 1984-01-06 | 1985-08-07 | Gen Electric Plc | Electric lamp and cap therefor |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL178108C (en) * | 1978-04-10 | 1986-10-16 | Philips Nv | ELECTRIC GAS DISCHARGE LAMP. |
| DE2941011A1 (en) * | 1979-10-10 | 1981-04-23 | Philips Patentverwaltung Gmbh, 2000 Hamburg | ELECTRIC LAMP WITH A SOCKET-BASED BASE |
| NL8006801A (en) * | 1980-12-16 | 1982-07-16 | Philips Nv | ELECTRIC LIGHT BULB. |
| DE3638507A1 (en) * | 1986-11-11 | 1988-05-19 | Ceag Licht & Strom | Explosion-proof or flameproof (explosion-protected) fluorescent lamp |
| US5818154A (en) * | 1994-08-10 | 1998-10-06 | Patent-Treuhand-Gesellschaft Fur Elektrische Gluhlampen Mbh | Halogen incandescent lamp in cementless base |
| DE4428357A1 (en) * | 1994-08-10 | 1996-02-15 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Halogen light bulb with no cement |
-
1968
- 1968-02-22 GB GB872868A patent/GB1204624A/en not_active Expired
-
1969
- 1969-02-21 NL NL6902720A patent/NL154055B/en not_active IP Right Cessation
- 1969-02-21 DE DE19691908641 patent/DE1908641C3/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3746907A (en) * | 1971-09-08 | 1973-07-17 | Westinghouse Electric Corp | End cap configuration for ceramic discharge lamp |
| GB2146172A (en) * | 1983-07-19 | 1985-04-11 | Asia Electric Ind Corp | Improvements in or relating to electric lamp bulbs |
| GB2152746A (en) * | 1984-01-06 | 1985-08-07 | Gen Electric Plc | Electric lamp and cap therefor |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1908641B2 (en) | 1972-10-05 |
| NL154055B (en) | 1977-07-15 |
| DE1908641A1 (en) | 1969-09-25 |
| DE1908641C3 (en) | 1974-08-08 |
| NL6902720A (en) | 1969-08-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PE20 | Patent expired after termination of 20 years |