US191146A - Improvement in metal alloys for commercial coin - Google Patents
Improvement in metal alloys for commercial coin Download PDFInfo
- Publication number
- US191146A US191146A US191146DA US191146A US 191146 A US191146 A US 191146A US 191146D A US191146D A US 191146DA US 191146 A US191146 A US 191146A
- Authority
- US
- United States
- Prior art keywords
- improvement
- metal alloys
- coin
- gold
- 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
- 229910001092 metal group alloy Inorganic materials 0.000 title description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 6
- 239000004332 silver Substances 0.000 description 6
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 5
- 229910052737 gold Inorganic materials 0.000 description 5
- 239000010931 gold Substances 0.000 description 5
- 229910052709 silver Inorganic materials 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910002065 alloy metal Inorganic materials 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 229910001316 Ag alloy Inorganic materials 0.000 description 1
- 229910001020 Au alloy Inorganic materials 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 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
- the alloy metal is slightly heavier than the mean of the component metals, which makes it peculiarly valuable for coin, not easily counterfeited.
- a dollar of the alloy is very much less in size than a silver dollar.
- the proportions may be slightly varied.
- the silver may be increased to thirty parts to one of gold, and decreased to twenty parts to one of gold.
- I copper may be increased to one-eighth
- the alloy metal free from flaws shows a density 10.802, and with flaws 10.710.
- the mean density of the several metals is 10.685. and the alloy metal shows an increase in value or weight or density of .025 to .117.
- gold and silver alloyed are less in density than the mean of their constituents.
- alloy coin metal of gold, silver, and copper, substantially in the proportions and for the purpose described.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Adornments (AREA)
Description
UNITED STATES PATENT OFFIos.
WILLIAM WHEELER HUBBELL, OF PHILADELPHIA, PENNSYLVANIA.
IMPROVEMENT IN METAL ALLOYS FOR COMMERCIAL COIN.
Specification forming part of Letters Patent .No. 191,146, dated May 22, 1877; application filed April 4,1876.
Melt them separately and pour them together,
and, in mixing, add one grain of sulphate of sodium or sulphate of potassium to one thousand grains of the metal. The alloy metal is slightly heavier than the mean of the component metals, which makes it peculiarly valuable for coin, not easily counterfeited. At the same time a dollar of the alloy is very much less in size than a silver dollar. The proportions may be slightly varied. The silver may be increased to thirty parts to one of gold, and decreased to twenty parts to one of gold. The
I copper may be increased to one-eighth, and
decreased to one-twelfth. But the most per feet or maximum affinity is established in the proportions of one of gold, twenty-four of silver, and two and a half of copper.
The alloy metal free from flaws shows a density 10.802, and with flaws 10.710. The mean density of the several metals is 10.685. and the alloy metal shows an increase in value or weight or density of .025 to .117. Usually gold and silver alloyed are less in density than the mean of their constituents.
This alloy of gold, silver, and copper, within these proportions specified, owing to its great density and intrinsic value, is especially valuable or suited for coin-dollars and fractions of a dollar. v
I claim as my invention The alloy coin metal of gold, silver, and copper, substantially in the proportions and for the purpose described.
WM. WHEELER HUBBELL.
Witnesses:
THOMAS C. GoNNoLLY, A. E. BEEOHER.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US191146A true US191146A (en) | 1877-05-22 |
Family
ID=2260553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US191146D Expired - Lifetime US191146A (en) | Improvement in metal alloys for commercial coin |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US191146A (en) |
-
0
- US US191146D patent/US191146A/en not_active Expired - Lifetime
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