US1857203A - Leading-in conductor - Google Patents
Leading-in conductor Download PDFInfo
- Publication number
- US1857203A US1857203A US435586A US43558630A US1857203A US 1857203 A US1857203 A US 1857203A US 435586 A US435586 A US 435586A US 43558630 A US43558630 A US 43558630A US 1857203 A US1857203 A US 1857203A
- Authority
- US
- United States
- Prior art keywords
- conductor
- envelope
- leading
- stem
- 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 - Lifetime
Links
- 239000004020 conductor Substances 0.000 title description 16
- 239000000463 material Substances 0.000 description 7
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 5
- 239000011521 glass Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052721 tungsten Inorganic materials 0.000 description 3
- 239000010937 tungsten Substances 0.000 description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- 229910052726 zirconium Inorganic materials 0.000 description 2
- RZVAJINKPMORJF-UHFFFAOYSA-N Acetaminophen Chemical compound CC(=O)NC1=CC=C(O)C=C1 RZVAJINKPMORJF-UHFFFAOYSA-N 0.000 description 1
- 241000218652 Larix Species 0.000 description 1
- 235000005590 Larix decidua Nutrition 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000005388 borosilicate glass Substances 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000013081 microcrystal Substances 0.000 description 1
- 239000005297 pyrex Substances 0.000 description 1
- 239000003870 refractory metal Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- YOUIDGQAIILFBW-UHFFFAOYSA-J tetrachlorotungsten Chemical compound Cl[W](Cl)(Cl)Cl YOUIDGQAIILFBW-UHFFFAOYSA-J 0.000 description 1
Images
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
- C03C27/02—Joining pieces of glass to pieces of other inorganic material; Joining glass to glass other than by fusing by fusing glass directly to metal
Definitions
- the present invention relates to the manufacture of incandescent lamps, electric dischar tubes of the transmitting type, gasfille and vacuum rectifiers X-ra tubes, etc.,
- ading-in conductor material issometimes fabricated. from a base metal such as tungsten, molybdenum or zirconium in powdered form and heated to a sintering temperature, simultaneously being pressed to shape after which the body is hammered and drawn.
- the conductor may take the form of a tube which also may be drawn from the pressed and sintered body.
- Tungsten wire which is 3 quently used for such material on account of its.
- favorable coeflicient of expansion when compared to that of Pyrex or other hard glass in which it may be sealed is particulary susceptible to' failure of the crystal or grain structure.
- numeral 1 designates an envelo of boro-silicate glass which may be evacuated or filled with inert gas of suitable pressure, the envelope terminatin in a stem 2. Within the envelope there is a amentary electrode 3 and a cooperating anode 4. Leading-in conductors 5 are sealed in the stem for supplying current to the electrodes.
- These con uctors may be fabricated of any refractory metals, such as tun sten, molybdenum "or zirconium which has a avorable coefficient of expansion as com ared to that of the glass in which it is sealed and may be treated in any well known and appropriate manner to change the grain structure from the usual microcrystal formation to macrostrystalline.
- refractory metals such as tun sten, molybdenum "or zirconium which has a avorable coefficient of expansion as com ared to that of the glass in which it is sealed and may be treated in any well known and appropriate manner to change the grain structure from the usual microcrystal formation to macrostrystalline.
- An evacuated envelope terminating in a stem, a conductor within the envelope and a metallic member sealed in said stem for sup lying current to the conductor, said member avin a uni-crystalline structure whereas leaiia e through the stem in the region e meta a member is prevented.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL49216A NL26811C (enrdf_load_stackoverflow) | 1929-11-30 | 1929-11-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1857203A true US1857203A (en) | 1932-05-10 |
Family
ID=33028936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US435586A Expired - Lifetime US1857203A (en) | 1929-11-30 | 1930-03-13 | Leading-in conductor |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US1857203A (enrdf_load_stackoverflow) |
| DE (1) | DE548825C (enrdf_load_stackoverflow) |
| FR (1) | FR705272A (enrdf_load_stackoverflow) |
| NL (1) | NL26811C (enrdf_load_stackoverflow) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2627536A (en) * | 1949-05-28 | 1953-02-03 | Bendix Aviat Corp | Electronic tube base and the like |
| US3219753A (en) * | 1963-05-15 | 1965-11-23 | Univ Illinois | Gas-impervious electrical feedthrough for use between two zones of differing pressures |
-
1929
- 1929-11-30 NL NL49216A patent/NL26811C/xx active
-
1930
- 1930-03-13 US US435586A patent/US1857203A/en not_active Expired - Lifetime
- 1930-11-07 FR FR705272D patent/FR705272A/fr not_active Expired
- 1930-11-08 DE DE1930548825D patent/DE548825C/de not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2627536A (en) * | 1949-05-28 | 1953-02-03 | Bendix Aviat Corp | Electronic tube base and the like |
| US3219753A (en) * | 1963-05-15 | 1965-11-23 | Univ Illinois | Gas-impervious electrical feedthrough for use between two zones of differing pressures |
Also Published As
| Publication number | Publication date |
|---|---|
| DE548825C (de) | 1932-04-20 |
| NL26811C (enrdf_load_stackoverflow) | 1932-05-17 |
| FR705272A (fr) | 1931-06-04 |
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