GB490385A - Improvements in demountable electric discharge devices - Google Patents
Improvements in demountable electric discharge devicesInfo
- Publication number
- GB490385A GB490385A GB444837A GB444837A GB490385A GB 490385 A GB490385 A GB 490385A GB 444837 A GB444837 A GB 444837A GB 444837 A GB444837 A GB 444837A GB 490385 A GB490385 A GB 490385A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- pump
- grease
- casing
- evacuating
- 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
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/50—Repairing or regenerating used or defective discharge tubes or lamps
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2893/00—Discharge tubes and lamps
- H01J2893/0072—Disassembly or repair of discharge tubes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/82—Recycling of waste of electrical or electronic equipment [WEEE]
Landscapes
- Reciprocating Pumps (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
490,385. Discharge apparatus. M-O VALVE CO., Ltd., and LE ROSSIGNOL, R. Feb. 15, 1937, No. 4448. [Class 39 (i)] In demountable discharge devices, particularly heavy duty thermionic valves, a valve comprising solid abutment surfaces is incorporated in the connection to the evacuating pump so that the latter may be disconnected between evacuating operations. The valve envelope is closed by a plate 5, Figs. 1 and 2, which makes a tight joint therewith by a washer 13 coated with grease, and which supports the grid 6 and the filament whose leads 9, 10 pass through glass tubes 7, 8. The connection to the evacuating pump is made by way of a casing 18 which has a flanged extension 19 adapted to abut against a flanged extension on the pump and be secured thereto to form a tight joint. The casing communicates with the interior of the valve by a pipe 15 and contains a ballvalve 17 seating on soft non - oxidizable metal such as gold, operated from the outside bv a screw 20, a bellows 21 being provided to allow movement of the screw rod. After evacuation, the device is disconnected from the pump and grease introduced through the extension 19 packed round the valve. Alternatively, the grease may be contained in a vessel enclosed in the casing 18 and tilted when required by a magnet. Specifications 345,224 and 450,275 are referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB444837A GB490385A (en) | 1937-02-15 | 1937-02-15 | Improvements in demountable electric discharge devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB444837A GB490385A (en) | 1937-02-15 | 1937-02-15 | Improvements in demountable electric discharge devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB490385A true GB490385A (en) | 1938-08-15 |
Family
ID=9777369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB444837A Expired GB490385A (en) | 1937-02-15 | 1937-02-15 | Improvements in demountable electric discharge devices |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB490385A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113752447A (en) * | 2020-06-03 | 2021-12-07 | 中国石油化工股份有限公司 | Device and method for online leak stoppage of valve |
-
1937
- 1937-02-15 GB GB444837A patent/GB490385A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113752447A (en) * | 2020-06-03 | 2021-12-07 | 中国石油化工股份有限公司 | Device and method for online leak stoppage of valve |
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