US980627A - Method of cleaning metals. - Google Patents
Method of cleaning metals. Download PDFInfo
- Publication number
- US980627A US980627A US58239310A US1910582393A US980627A US 980627 A US980627 A US 980627A US 58239310 A US58239310 A US 58239310A US 1910582393 A US1910582393 A US 1910582393A US 980627 A US980627 A US 980627A
- Authority
- US
- United States
- Prior art keywords
- anode
- articles
- cleaning
- aluminum
- metals
- 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
- 229910052751 metal Inorganic materials 0.000 title description 11
- 239000002184 metal Substances 0.000 title description 11
- 238000004140 cleaning Methods 0.000 title description 8
- 238000000034 method Methods 0.000 title description 8
- 150000002739 metals Chemical class 0.000 title description 5
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 14
- 229910052782 aluminium Inorganic materials 0.000 description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 11
- 239000003792 electrolyte Substances 0.000 description 5
- 241000358326 Genetta genetta Species 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- YZCKVEUIGOORGS-UHFFFAOYSA-N Hydrogen atom Chemical compound [H] YZCKVEUIGOORGS-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000000615 nonconductor Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/0005—Other compounding ingredients characterised by their effect
- C11D3/0042—Reducing agents
Definitions
- Patented J an. 3, 1911.
- This invention relates to a method of and apparatus for cleaning gold, silver, and metal articles.
- the present invention has for its object the provision of a new method and apparatus for the electrolytic cleaning of metal articles ofl the tarnish of oxid or the like which will permit the utilization of any suitable receptacle to contain the solution, articles Vto be cleaned, and the novel anode, the latter being of pure aluminum and the electrolyte being sodium hydroxid, NaOH.
- pure aluminum is the most elficient anode because the electrolytic action does not cause any appreciable coating or film to be deposited thereon and there is no local action on the face of said anode.
- Sodium hydroxid, NaOH is most ehcient to form. the electrolyte on account of its action in connection with the aluminum anode and because of its strength being such that a relatively7 small quantity is required.
- Figure 1 is a sectional view showing a finger bowl or 1 the like with the anode in position therein;
- Fig. 2 a View of the disk like aluminum anode used in Fig. 1;
- Fig. 3, a sectional ⁇ View of a pan and an elongated aluminum anode;
- Fig. 4 a face view ofthe anode of Fig. 3.
- Figs. l and 2 represent apparatus adapted for the cleaning of small articles such as rings, bracelets, and other articles of jewelry.
- Figs. 3 and 4 disclose apparatus for cleaning large metal articles, silverware, etc. y
- the bowl 1 may be of some nonmetallic substance and in Fig. 3 the pan or tray 2 is preferably of enameled met-al ware as in my apparatus and method the receptacle is a non-conductor and has nothing to do with the anode.
- the aluminum anode for use with small articles is made in the shape of a disk 3 having perforations 4 for the free circulation of the electrolyte and to afford as great an area as possible.
- the aluminum plate 5, suitably perforated is employed. It will be understood thatthe size and shape of the aluminum anode "are immaterial.
- the electrolyte, sodium hydroxid, NaOH, in solution preferably in the proportion of one half pound of sodium hydroXid to one gallon of water, the latter being preferably boiling, is introduced into the vessel, 1 or 2, the anode, 3 or 5 introduced therein, and the articles to be cleaned are then placed in the receptacle, immersed in the electrolyte, and in direct contact with the aluminum anode.
- Such of the articles as do not touch the anode are in indirect connection therewith through the ones in direct contact.
- the solution is very hot or maintained hot or boiling.
- Nascent hydrogen is set free and coming in contact with the oxid or tarnish on the articles to be cleaned, reduces said oxid or tarnish. very rapidly, leaving the immersed articles bright without removing any metal or inany manner affecting the metal.
- the method of removing tarnish'from metals consisting in immersing the met-al to be brightened in a solution of sodium hydroxid in which is immersed an anode of aluminum, and in bringing the metal to be brightened into electrical contact with ythe ,aluminum anode.
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Description
H. E; GENBT. METHOD OP CLEANING METALS., APPLIOATION FILED SEPT. 16, 1910.
Patented Jan. 3, 1911.
METHOD OF CLEANING METALS.
specification of Letters Patent.
Patented J an. 3, 1911.
Application led September 16, 1910. Serial No. 582,393.
To all whom it may concern:
Be it known that I, HENRY E. GENET, a citizen of the United States, residing at New York city, county of New York, and State of New York, have invented certain new and useful Improvements in Methods of Cleaning Metals, of which the following is a specification.
This invention relates to a method of and apparatus for cleaning gold, silver, and metal articles.
The present invention has for its object the provision of a new method and apparatus for the electrolytic cleaning of metal articles ofl the tarnish of oxid or the like which will permit the utilization of any suitable receptacle to contain the solution, articles Vto be cleaned, and the novel anode, the latter being of pure aluminum and the electrolyte being sodium hydroxid, NaOH. I have discovered that pure aluminum is the most elficient anode because the electrolytic action does not cause any appreciable coating or film to be deposited thereon and there is no local action on the face of said anode. Sodium hydroxid, NaOH, is most ehcient to form. the electrolyte on account of its action in connection with the aluminum anode and because of its strength being such that a relatively7 small quantity is required.
In the accompanying drawings: Figure 1 is a sectional view showing a finger bowl or 1 the like with the anode in position therein; Fig. 2, a View of the disk like aluminum anode used in Fig. 1; Fig. 3, a sectional `View of a pan and an elongated aluminum anode; and Fig. 4, a face view ofthe anode of Fig. 3. Figs. l and 2 represent apparatus adapted for the cleaning of small articles such as rings, bracelets, and other articles of jewelry. Figs. 3 and 4 disclose apparatus for cleaning large metal articles, silverware, etc. y
In Fig. 1 the bowl 1 may be of some nonmetallic substance and in Fig. 3 the pan or tray 2 is preferably of enameled met-al ware as in my apparatus and method the receptacle is a non-conductor and has nothing to do with the anode. For convenient han- (lling the aluminum anode for use with small articles is made in the shape of a disk 3 having perforations 4 for the free circulation of the electrolyte and to afford as great an area as possible. For use in pans or trays, the aluminum plate 5, suitably perforated, is employed. It will be understood thatthe size and shape of the aluminum anode "are immaterial.
The electrolyte, sodium hydroxid, NaOH, in solution, preferably in the proportion of one half pound of sodium hydroXid to one gallon of water, the latter being preferably boiling, is introduced into the vessel, 1 or 2, the anode, 3 or 5 introduced therein, and the articles to be cleaned are then placed in the receptacle, immersed in the electrolyte, and in direct contact with the aluminum anode. Such of the articles as do not touch the anode are in indirect connection therewith through the ones in direct contact. Preferably the solution is very hot or maintained hot or boiling. The action is as follows: Nascent hydrogen is set free and coming in contact with the oxid or tarnish on the articles to be cleaned, reduces said oxid or tarnish. very rapidly, leaving the immersed articles bright without removing any metal or inany manner affecting the metal.
Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is
The method of removing tarnish'from metals, consisting in immersing the met-al to be brightened in a solution of sodium hydroxid in which is immersed an anode of aluminum, and in bringing the metal to be brightened into electrical contact with ythe ,aluminum anode.
In testimony whereof, I hereunto ailix my signature in presence of two witnesses.
HENRY E. GENET. lYitnesses M. L. NEwcoMe, Guo. B. Frrs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US58239310A US980627A (en) | 1910-09-16 | 1910-09-16 | Method of cleaning metals. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US58239310A US980627A (en) | 1910-09-16 | 1910-09-16 | Method of cleaning metals. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US980627A true US980627A (en) | 1911-01-03 |
Family
ID=3048998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US58239310A Expired - Lifetime US980627A (en) | 1910-09-16 | 1910-09-16 | Method of cleaning metals. |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US980627A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2957817A (en) * | 1958-03-31 | 1960-10-25 | Gen Electric | Silverware buckets for automatic dishwashers |
| US2957813A (en) * | 1958-03-31 | 1960-10-25 | Gen Electric | Methods of detarnishing silverware |
-
1910
- 1910-09-16 US US58239310A patent/US980627A/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2957817A (en) * | 1958-03-31 | 1960-10-25 | Gen Electric | Silverware buckets for automatic dishwashers |
| US2957813A (en) * | 1958-03-31 | 1960-10-25 | Gen Electric | Methods of detarnishing silverware |
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