US1605432A - Alloy and process of forming the same - Google Patents
Alloy and process of forming the same Download PDFInfo
- Publication number
- US1605432A US1605432A US655204A US65520423A US1605432A US 1605432 A US1605432 A US 1605432A US 655204 A US655204 A US 655204A US 65520423 A US65520423 A US 65520423A US 1605432 A US1605432 A US 1605432A
- Authority
- US
- United States
- Prior art keywords
- percent
- forming
- alloy
- same
- silver
- 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
- 238000000034 method Methods 0.000 title description 4
- 239000000956 alloy Substances 0.000 title description 2
- 229910045601 alloy Inorganic materials 0.000 title description 2
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 229910052709 silver Inorganic materials 0.000 description 6
- 239000004332 silver Substances 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910002804 graphite Inorganic materials 0.000 description 4
- 239000010439 graphite Substances 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000005267 amalgamation Methods 0.000 description 2
- 238000010892 electric spark Methods 0.000 description 2
- 101100049053 Mus musculus Vash1 gene Proteins 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C5/00—Alloys based on noble metals
- C22C5/06—Alloys based on silver
Definitions
- This invention relates to improvements in the composition of alloys to form a metal employed in electrical contacts and the object of this invention is to produce a metal 5 that will possess a high resistance to the electric spark in the form of points that constitute the terminals or electrodes used in igniters between which the electric spark leaps at time of break.
- a further object resides in the provision of metal that cannot be electrically welded under any known process.
- a still further object resides in the provision of metal that will prevent pitting of 5 the points insuring a smooth surface of the terminals at all times.
- I employ a sand or hard clay crucible into which equal proportions of copper and silver are subjected to the highest temperature obtainable until the mass has been melted. At this stage is added one (1%) percent of powdered graphite, and additional silver until the combined proportions are approximately twelve (12%) percent copper, one (1%) percent graphite and eighty-seven (87 percent silver.
- This mass is maintained in a state of ebullition until complete amalgamation is effected. Thereafter, it is permitted to cool so into a solid body.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Contacts (AREA)
Description
Patented Nov. 2, 1926.
' Ltd-5, 332
BEST AVAlLABLE com UNITED STATES HARDY M. FREDRIKSEN, OF SEATTLE, WASHINGTON.
ALLOY AND PROCESS OF-FORMING' THE SAME No Drawing.
This invention relates to improvements in the composition of alloys to form a metal employed in electrical contacts and the object of this invention is to produce a metal 5 that will possess a high resistance to the electric spark in the form of points that constitute the terminals or electrodes used in igniters between which the electric spark leaps at time of break.
A further object resides in the provision of metal that cannot be electrically welded under any known process.
A still further object resides in the provision of metal that will prevent pitting of 5 the points insuring a smooth surface of the terminals at all times.
In carrying out this invention, I employ a sand or hard clay crucible into which equal proportions of copper and silver are subjected to the highest temperature obtainable until the mass has been melted. At this stage is added one (1%) percent of powdered graphite, and additional silver until the combined proportions are approximately twelve (12%) percent copper, one (1%) percent graphite and eighty-seven (87 percent silver.
Application filed August 2, 1923. Serial No. 655,204.
This mass is maintained in a state of ebullition until complete amalgamation is effected. Thereafter, it is permitted to cool so into a solid body.
These proportions, I find, give very satisfactory results; however, I do not care to be limited thereto.
Having thus described my invention, What 85 I claim as new therein and desire to secure by Letters-Patent, is:
1. The process of forming a metal employed in electrical contacts, which consists in subjecting equal parts of silver and cop- 4 per to a high temperature, thence adding one percent powdered graphite and seventyfive percent additional silver while in a state of ebullition to effect complete amal gamation.
2. In a metal employed in electrical contacts, the combination of eighty-seven (87%) percent silver, twelve (12%) percent copper, and one (1%) percent graphite, substantially as described.
Signed at Seattle, King County, )Vash ington, this 12th day of July, 1923.
HARDY M. FREDR-IKSEN.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US655204A US1605432A (en) | 1923-08-02 | 1923-08-02 | Alloy and process of forming the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US655204A US1605432A (en) | 1923-08-02 | 1923-08-02 | Alloy and process of forming the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1605432A true US1605432A (en) | 1926-11-02 |
Family
ID=24627945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US655204A Expired - Lifetime US1605432A (en) | 1923-08-02 | 1923-08-02 | Alloy and process of forming the same |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1605432A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2621123A (en) * | 1949-04-23 | 1952-12-09 | Gibson Electric Company | Method of sintering silver contact material |
| US3035151A (en) * | 1960-02-24 | 1962-05-15 | Budd Co | Spark machining electrodes and method of making the same |
| US3134069A (en) * | 1959-01-30 | 1964-05-19 | Texaco Inc | Well logging apparatus having detector means in a rotatable casing mounted within a drill string for simultaneous drilling and logging |
| DE102013014915A1 (en) * | 2013-09-11 | 2015-03-12 | Airbus Defence and Space GmbH | Contact materials for high-voltage DC systems |
-
1923
- 1923-08-02 US US655204A patent/US1605432A/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2621123A (en) * | 1949-04-23 | 1952-12-09 | Gibson Electric Company | Method of sintering silver contact material |
| US3134069A (en) * | 1959-01-30 | 1964-05-19 | Texaco Inc | Well logging apparatus having detector means in a rotatable casing mounted within a drill string for simultaneous drilling and logging |
| US3035151A (en) * | 1960-02-24 | 1962-05-15 | Budd Co | Spark machining electrodes and method of making the same |
| DE102013014915A1 (en) * | 2013-09-11 | 2015-03-12 | Airbus Defence and Space GmbH | Contact materials for high-voltage DC systems |
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