GB678971A - Improvements in vacuum seals - Google Patents
Improvements in vacuum sealsInfo
- Publication number
- GB678971A GB678971A GB1055950A GB1055950A GB678971A GB 678971 A GB678971 A GB 678971A GB 1055950 A GB1055950 A GB 1055950A GB 1055950 A GB1055950 A GB 1055950A GB 678971 A GB678971 A GB 678971A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cemented
- window
- tube
- april
- cement
- 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
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C27/00—Joining pieces of glass to pieces of other inorganic material; Joining glass to glass other than by fusing
- C03C27/06—Joining glass to glass by processes other than fusing
- C03C27/08—Joining glass to glass by processes other than fusing with the aid of intervening metal
-
- 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
- H01J5/20—Seals between parts of vessels
- H01J5/22—Vacuum-tight joints between parts of vessel
- H01J5/24—Vacuum-tight joints between parts of vessel between insulating parts of vessel
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2893/00—Discharge tubes and lamps
- H01J2893/0033—Vacuum connection techniques applicable to discharge tubes and lamps
- H01J2893/0037—Solid sealing members other than lamp bases
- H01J2893/0038—Direct connection between two insulating elements, in particular via glass material
- H01J2893/0039—Glass-to-glass connection, e.g. by soldering
Abstract
678,971. Discharge apparatus. HILGER & WATTS, Ltd. April 30, 1951 [April 28, 1950], No. 10559/50. Addition to 652,702. Class 39 (i). The method of sealing a window over an aperture in a vacuum tube in which the window is cemented in a frame of flexible metal foil which is cemented to the tube, so that the window may expand independently of the tube envelope, as described in the parent Specification, is modified for use with thick flat or lens-like windows. In Fig. 2 the sealing ring 3 of foil is cemented to the tube envelope 1 and the hemispherical window 6. An annular groove 4 allows play during expansion and prevents penetration of cement between parts 1 and 6; diametral grooves 5 enable groove 4 to be evacuated. A suitable cement is silver chloride, but as this corrodes glass and other substances, a protective layer of metallic silver may first be burnt on to the surfaces to be cemented.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1055950A GB678971A (en) | 1950-04-28 | 1950-04-28 | Improvements in vacuum seals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1055950A GB678971A (en) | 1950-04-28 | 1950-04-28 | Improvements in vacuum seals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB678971A true GB678971A (en) | 1952-09-10 |
Family
ID=9970071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1055950A Expired GB678971A (en) | 1950-04-28 | 1950-04-28 | Improvements in vacuum seals |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB678971A (en) |
-
1950
- 1950-04-28 GB GB1055950A patent/GB678971A/en not_active Expired
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