GB677242A - Improvements in or relating to methods of preparing a smooth glass surface for cementing a member thereto - Google Patents
Improvements in or relating to methods of preparing a smooth glass surface for cementing a member theretoInfo
- Publication number
- GB677242A GB677242A GB5835/49A GB583549A GB677242A GB 677242 A GB677242 A GB 677242A GB 5835/49 A GB5835/49 A GB 5835/49A GB 583549 A GB583549 A GB 583549A GB 677242 A GB677242 A GB 677242A
- Authority
- GB
- United Kingdom
- Prior art keywords
- glaze
- cementing
- relating
- preparing
- methods
- 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
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
- Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
- Joining Of Glass To Other Materials (AREA)
Abstract
677,242. Discharge apparatus. PHILIPS ELECTRICAL, Ltd. March 3, 1949 [March 6, 1948], No. 5835/49. Class 39 (i). [Also in Group XI] A member, e.g. a cap 6, is cemented on a wall, which must not be deformed, e.g. part of the glass envelope 1 of a valve, by coating it with a mixture 9 of a low-melting point glaze and a higher-melting point powder e.g. powdered glass, and heating so that only the glaze melts, the powder forming a roughened surface on which the cement 8 is applied. The base of a lamp or valve can be applied similarly. A suitable composition of the glaze and glass mixture is given.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL677242X | 1948-03-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB677242A true GB677242A (en) | 1952-08-13 |
Family
ID=19802326
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5835/49A Expired GB677242A (en) | 1948-03-06 | 1949-03-03 | Improvements in or relating to methods of preparing a smooth glass surface for cementing a member thereto |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE487719A (en) |
DE (1) | DE812093C (en) |
FR (1) | FR982350A (en) |
GB (1) | GB677242A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2840490A (en) * | 1953-12-02 | 1958-06-24 | Westinghouse Electric Corp | Lamp envelope coating and method of applying |
-
0
- BE BE487719D patent/BE487719A/xx unknown
-
1949
- 1949-02-11 DE DEP33792A patent/DE812093C/en not_active Expired
- 1949-03-03 GB GB5835/49A patent/GB677242A/en not_active Expired
- 1949-03-04 FR FR982350D patent/FR982350A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2840490A (en) * | 1953-12-02 | 1958-06-24 | Westinghouse Electric Corp | Lamp envelope coating and method of applying |
Also Published As
Publication number | Publication date |
---|---|
FR982350A (en) | 1951-06-08 |
BE487719A (en) | |
DE812093C (en) | 1951-08-27 |
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