GB744387A - A safety electric discharge lamp - Google Patents
A safety electric discharge lampInfo
- Publication number
- GB744387A GB744387A GB21746/53A GB2174653A GB744387A GB 744387 A GB744387 A GB 744387A GB 21746/53 A GB21746/53 A GB 21746/53A GB 2174653 A GB2174653 A GB 2174653A GB 744387 A GB744387 A GB 744387A
- Authority
- GB
- United Kingdom
- Prior art keywords
- casing
- discharge
- aug
- casings
- end walls
- 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
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/04—Electrodes; Screens; Shields
Landscapes
- Discharge Lamp (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
744,387. Discharge lamps. TESLA, NARODNI PODNIK. Aug. 6, 1953 [Aug. 7, 1952], No. 21746/53. Class 39 (1). The hot electrodes are enclosed in casings partly or wholly perforated or formed of wire gauze, so that if the lamp breaks in an explosive atmosphere an explosion cannot develop by contact with the hot electrode. As shown the casings are flattened cylinders 7 of steel or nickel wire gauze of 0.5 mm. mesh or less, with solid end walls 6, 8, the casing being connected to one of the cathode leads 4 passing through end walls 6. The casing acts as the anode of the opposite cathode and is positioned inside the Crookes dark space so as not to disturb the discharge mechanism. In other forms the casing is solid but the end wall facing the discharge is formed of a layer of gauze, or alternatively two spaced layers where strong draughts are likely. The lamp may be fluorescent.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS316959X | 1952-08-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB744387A true GB744387A (en) | 1956-02-08 |
Family
ID=5452187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB21746/53A Expired GB744387A (en) | 1952-08-07 | 1953-08-06 | A safety electric discharge lamp |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE521928A (en) |
| CH (1) | CH316959A (en) |
| DE (1) | DE1022691B (en) |
| FR (1) | FR1082195A (en) |
| GB (1) | GB744387A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3376457A (en) * | 1964-12-07 | 1968-04-02 | Westinghouse Electric Corp | Electric discharge lamp with space charge relieving means |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE581252C (en) * | 1930-09-04 | 1933-07-24 | Patra Patent Treuhand | Electric light tubes for direct current operation with a glowing main electrode and an auxiliary electrode surrounding it |
| US2530990A (en) * | 1945-04-21 | 1950-11-21 | Gen Electric | Electric discharge device |
| DE845367C (en) * | 1947-05-05 | 1952-07-31 | Gen Electric | Low-pressure discharge lamp with a positive column, especially fluorescent lamp |
| DE954717C (en) * | 1952-02-16 | 1956-12-20 | Patra Patent Treuhand | Use of a gas and / or vapor-filled electrical discharge tube |
-
0
- BE BE521928D patent/BE521928A/xx unknown
-
1953
- 1953-07-31 CH CH316959D patent/CH316959A/en unknown
- 1953-08-05 DE DET8207A patent/DE1022691B/en active Pending
- 1953-08-06 GB GB21746/53A patent/GB744387A/en not_active Expired
- 1953-08-07 FR FR1082195D patent/FR1082195A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3376457A (en) * | 1964-12-07 | 1968-04-02 | Westinghouse Electric Corp | Electric discharge lamp with space charge relieving means |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1022691B (en) | 1958-01-16 |
| BE521928A (en) | |
| FR1082195A (en) | 1954-12-27 |
| CH316959A (en) | 1956-10-31 |
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