GB611035A - Improvements in or relating to the manufacture of thermionic valves - Google Patents
Improvements in or relating to the manufacture of thermionic valvesInfo
- Publication number
- GB611035A GB611035A GB305345A GB305345A GB611035A GB 611035 A GB611035 A GB 611035A GB 305345 A GB305345 A GB 305345A GB 305345 A GB305345 A GB 305345A GB 611035 A GB611035 A GB 611035A
- Authority
- GB
- United Kingdom
- Prior art keywords
- getter
- stamping
- wire
- metal
- strip
- 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
- H01J7/00—Details not provided for in the preceding groups and common to two or more basic types of discharge tubes or lamps
- H01J7/14—Means for obtaining or maintaining the desired pressure within the vessel
- H01J7/18—Means for absorbing or adsorbing gas, e.g. by gettering
- H01J7/186—Getter supports
Landscapes
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
611,035. Making thermionic getter elements. HIVAC, Ltd., RANGABE, A. R., and WRIGHT, C. S. Feb. 6, 1945, No. 3053. [Classes 83 (ii) and 83 (iv)] [Also in Groups XXVIII and XL (a)] Stamping.-A combined arrangement of metal sheathed getter wire and a heating element for use in thermionic valves or other evacuated envelopes is produced by tightly enfolding the wire 68 in a turned-over portion of a thin metal stamping 67 or of a metal strip from which lengths may be stamped, the remaining portion of the width of metal being adapted for eddy current heating. The metal strip may be doubled over or have one edge turned over, and the strip, which is preferably nickel enfolding nickel-sheathed barium wire, is seam welded as close to the sheathing as possible to ensure good thermal contact with the wire. In the operation of stamping getter tabs from composite strip, the ends 70, of the getter portion are tapered and closed, Fig. 2b, to shield the getter from the atmosphere and to reduce the wall strength opposing flashing of the getter. In the stamping illustrated the getter portion is cut-off shorter than the length of the stamping and a hole which may be adapted in shape to suit the electrode supporting structure is provided in the heater portion. Specification 611,034 is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB305345A GB611035A (en) | 1945-02-06 | 1945-02-06 | Improvements in or relating to the manufacture of thermionic valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB305345A GB611035A (en) | 1945-02-06 | 1945-02-06 | Improvements in or relating to the manufacture of thermionic valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB611035A true GB611035A (en) | 1948-10-25 |
Family
ID=9751082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB305345A Expired GB611035A (en) | 1945-02-06 | 1945-02-06 | Improvements in or relating to the manufacture of thermionic valves |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB611035A (en) |
-
1945
- 1945-02-06 GB GB305345A patent/GB611035A/en not_active Expired
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