GB639705A - Improvements in or relating to electric discharge devices - Google Patents
Improvements in or relating to electric discharge devicesInfo
- Publication number
- GB639705A GB639705A GB9945/48A GB994548A GB639705A GB 639705 A GB639705 A GB 639705A GB 9945/48 A GB9945/48 A GB 9945/48A GB 994548 A GB994548 A GB 994548A GB 639705 A GB639705 A GB 639705A
- Authority
- GB
- United Kingdom
- Prior art keywords
- base
- rods
- jig
- glass
- sealed
- 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
- H01J5/20—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
Landscapes
- Fuses (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
639,705. Discharge apparatus. STANDARD TELEPHONES & CABLES, Ltd. April 9, 1948, No. 9945. Convention date, April 15, 1947. [Class 39 (i)] A discharge - tube - envelope comprises two moulded glass bases spaced apart by glass rods fused thereto, and surrounded by a tubular wall-member sealed to the bases. The electrode structure may be mounted directly on terminal pins in the base. The envelope is made in four operations in nickel-flanged jigs heated by H.F. induction until the glass melts to fuse the parts together. In the first operation the rods 7, and base 1 are held in a jig such as Fig. 1, with nickel flanges 3, 4 to unite the rods and base. Secondly the rods are fused to the other base 11, in a similar jig with flange 4 diametrically split for removal from the rods, Fig. 2 (not shown). Thirdly, after mounting the electrode structure on the terminal pins, a tubular glass wall 24 is sealed at its lower end 28 to the base 1, in a jig such as Fig. 3, and finally the upper part of the tube 24 is sealed to the base 11 in a further jig, Fig. 4 (not shown).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR639705X | 1947-04-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB639705A true GB639705A (en) | 1950-07-05 |
Family
ID=8996948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9945/48A Expired GB639705A (en) | 1947-04-15 | 1948-04-09 | Improvements in or relating to electric discharge devices |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB639705A (en) |
-
1948
- 1948-04-09 GB GB9945/48A patent/GB639705A/en not_active Expired
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