GB815395A - Improvements in or relating to the manufacture of hermetically sealed vessels containing gas under pressure - Google Patents
Improvements in or relating to the manufacture of hermetically sealed vessels containing gas under pressureInfo
- Publication number
- GB815395A GB815395A GB3531256A GB3531256A GB815395A GB 815395 A GB815395 A GB 815395A GB 3531256 A GB3531256 A GB 3531256A GB 3531256 A GB3531256 A GB 3531256A GB 815395 A GB815395 A GB 815395A
- Authority
- GB
- United Kingdom
- Prior art keywords
- stem
- coating
- relating
- manufacture
- under pressure
- 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
- 238000004519 manufacturing process Methods 0.000 title 1
- 239000011248 coating agent Substances 0.000 abstract 5
- 238000000576 coating method Methods 0.000 abstract 5
- 229910001369 Brass Inorganic materials 0.000 abstract 2
- 229910000906 Bronze Inorganic materials 0.000 abstract 2
- 239000010951 brass Substances 0.000 abstract 2
- 239000010974 bronze Substances 0.000 abstract 2
- 229910052802 copper Inorganic materials 0.000 abstract 2
- 239000010949 copper Substances 0.000 abstract 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 2
- 239000011521 glass Substances 0.000 abstract 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 abstract 2
- 229910052725 zinc Inorganic materials 0.000 abstract 2
- 239000011701 zinc Substances 0.000 abstract 2
- 238000007664 blowing Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 230000002787 reinforcement Effects 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
- 229910052718 tin Inorganic materials 0.000 abstract 1
- 239000011135 tin Substances 0.000 abstract 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N tin hydride Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 abstract 1
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
- H01J9/40—Closing vessels
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
815,395. Sealing electric lamps. GENERAL ELECTRIC CO. Ltd. Nov. 19, 1957 [Nov. 19, 1956], No. 35312/56. Class 39(2) [Also in Groups XXIII and XL(a)] The glass sealing-off stem of a device such as a discharge tube or a lamp in which the pressure is greater inside than outside has an external coating of a material of higher softening temperature than the stem itself; thus when the stem is heated to be pinched off, the coating forms a reinforcement to prevent the softened stem from blowing out. The coating may also be of glass, or a metal such as copper, tin, zinc, bronze, or brass. The coating may be in two layers, e.g. a first layer of zinc and a second layer of copper, bronze, or brass. The coating is preferably thicker where the stem is to be pinched.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB815395A true GB815395A (en) | 1959-06-24 |
Family
ID=1744253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3531256A Expired GB815395A (en) | 1956-11-19 | Improvements in or relating to the manufacture of hermetically sealed vessels containing gas under pressure |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB815395A (en) |
-
1956
- 1956-11-19 GB GB3531256A patent/GB815395A/en not_active Expired
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