GB411002A - Improvements in or relating to photo-electric cells - Google Patents
Improvements in or relating to photo-electric cellsInfo
- Publication number
- GB411002A GB411002A GB25034/33A GB2503433A GB411002A GB 411002 A GB411002 A GB 411002A GB 25034/33 A GB25034/33 A GB 25034/33A GB 2503433 A GB2503433 A GB 2503433A GB 411002 A GB411002 A GB 411002A
- Authority
- GB
- United Kingdom
- Prior art keywords
- calcium
- tin
- layer
- screen
- mixture
- 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
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N21/00—Conduits; Junctions; Fittings for lubrication apertures
- F16N21/06—Covering members for nipples, conduits or apertures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J40/00—Photoelectric discharge tubes not involving the ionisation of a gas
- H01J40/02—Details
- H01J40/04—Electrodes
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Catalysts (AREA)
Abstract
411,002. Photo electric cells. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. Sept. 9, 1933, No. 25034. Convention date, Dec. 31, 1932. [Class 39 (i).] A cell having a photoelectric electrode with an adsorbed layer of alkali metal, contains a quantity of one of the alkaline earth metals calcium, barium, or strontium which does not form part of the photoelectric electrode ; the alkaline earth metal removes hydrogen or other gas formed by the action of alkali metal on glass. As shown, a piece of calcium is placed in a heating coil 13 mounted below and connected at one end with a tinned screen 9 which prevents the deposition of silver and alkali metal on the lower part of the wall, and removes excess alkali metal. The screen is insulated by a tube 10 from one end of the anode 6. After evacuation, silver applied to the anode is vaporized to form a deposit on the wall. Oxygen is admitted and a discharge passed to form silver oxide. A small quantity of calcium is vaporized to clean up gas and form a deposit 15 on the wall. Calcium is introduced, the cell sealed off, and the calcium heated again to deposit a further layer. The cell is heated to form a layer consisting of a mixture of calcium oxide, silver and calcium with a thin adsorbed layer of calcium. Hydrogen or other gas is removed by the calcium layer, and a further quantity of calcium may be vaporized. Excess calcium combines with tin on the screen. In a modification, a mixture or an alloy of calcium and tin is contained in a capsule mounted on a wire on the foot, the upper part of the capsule forming a screen. The capsule is heated by induced current and a layer of calcium and tin is formed on the lower part of the wall. In other arrangements calcium is obtained by heating a mixture of calcium oxide and zirconium or thorium, and tin from a mixture of tin oxide and zirconium ; or calcium and tin are obtained from calcium stannate. Carbon or lead glass may be used for removing excess calcium. Specification 396,348 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE411002X | 1932-12-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB411002A true GB411002A (en) | 1934-05-31 |
Family
ID=6428300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB25034/33A Expired GB411002A (en) | 1932-12-31 | 1933-09-09 | Improvements in or relating to photo-electric cells |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR411002A (en) |
| GB (1) | GB411002A (en) |
-
1909
- 1909-12-14 FR FR411002D patent/FR411002A/en not_active Expired
-
1933
- 1933-09-09 GB GB25034/33A patent/GB411002A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR411002A (en) | 1910-06-06 |
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