US121321A - Improvement in processes for restoring writing or printing on charred paper - Google Patents
Improvement in processes for restoring writing or printing on charred paper Download PDFInfo
- Publication number
- US121321A US121321A US121321DA US121321A US 121321 A US121321 A US 121321A US 121321D A US121321D A US 121321DA US 121321 A US121321 A US 121321A
- Authority
- US
- United States
- Prior art keywords
- printing
- writing
- paper
- restoring
- improvement
- 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 6
- 150000001875 compounds Chemical class 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 229910052709 silver Inorganic materials 0.000 description 4
- 239000004332 silver Substances 0.000 description 4
- 239000011780 sodium chloride Substances 0.000 description 4
- 229920000715 Mucilage Polymers 0.000 description 2
- NNFCIKHAZHQZJG-UHFFFAOYSA-N Potassium cyanide Chemical compound [K+].N#[C-] NNFCIKHAZHQZJG-UHFFFAOYSA-N 0.000 description 2
- SQGYOTSLMSWVJD-UHFFFAOYSA-N Silver nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 description 2
- AKHNMLFCWUSKQB-UHFFFAOYSA-L Sodium thiosulphate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 239000012153 distilled water Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 238000009877 rendering Methods 0.000 description 2
- 235000019345 sodium thiosulphate Nutrition 0.000 description 2
- 239000002966 varnish Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
Definitions
- the charred paper is to be first separated into single leaves, and then immersed in a solution of a soluble compound of silver or copper for such a time as may be required to render the printing or writing sufficiently legible; A solution of the nitrate of silver containing forty (40) grains of that salt to one fluid ounce of distilled water is preferred. If the restoration. is only required to be made on one side of the sheet, the solution may be applied with a brush, or by floating the paper upon the surface of the liquid.
- the process succeeds best in a dark or a feeblylighted room.
- the paper should be soaked for some time in pure water to remove the excess of the salt used-in the case of silver salts a dilute solution of hyposulphite of soda or of cyanide of potassium may be used-after which the paper may be exposed to the light, and, when dry, covered with a transparent mucilage or varnish for preservation.
- What I claim as my invention is- The use of the soluble compounds of silver and of copper for the restoration, temporarily or permanently, of writing or printing on paper which has been wholly or partially charred by fire, such charring having rendered such Writing or printing wholly or partially illegible.
Description
UNITED STATES PATENT OFFICE.
JAMES V. Z. BLANEY, OF CHICAGO, ILLINOIS.
IMPROVEMENT IN PROCESSES FOR RESTORING WRITING UR PRINTING 0N CHARREIJ PAPER.
Specification forming part of Letters Patent No. 121,321, dated Npgrember 28, 1871.
To all whom it may concern.-
Be it known that I, JAMES V. Z. BLANEY, of Ohicago,0ook county, State of Illinois, have invented a new and useful Process for Rendering Legible Printed and Written Matter upon Paper which has been wholly or partially charred by fire.
The charred paper is to be first separated into single leaves, and then immersed in a solution of a soluble compound of silver or copper for such a time as may be required to render the printing or writing sufficiently legible; A solution of the nitrate of silver containing forty (40) grains of that salt to one fluid ounce of distilled water is preferred. If the restoration. is only required to be made on one side of the sheet, the solution may be applied with a brush, or by floating the paper upon the surface of the liquid.
The process succeeds best in a dark or a feeblylighted room. After sufficient legibility has been attained the paper should be soaked for some time in pure water to remove the excess of the salt used-in the case of silver salts a dilute solution of hyposulphite of soda or of cyanide of potassium may be used-after which the paper may be exposed to the light, and, when dry, covered with a transparent mucilage or varnish for preservation.
What I claim as my invention is- The use of the soluble compounds of silver and of copper for the restoration, temporarily or permanently, of writing or printing on paper which has been wholly or partially charred by fire, such charring having rendered such Writing or printing wholly or partially illegible.
JAS. V. Z. BLANEY.
Witnesses WM. R. PAGE, R. BIDDLE ROBERTS. (35)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US121321A true US121321A (en) | 1871-11-28 |
Family
ID=2190765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US121321D Expired - Lifetime US121321A (en) | Improvement in processes for restoring writing or printing on charred paper |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US121321A (en) |
-
0
- US US121321D patent/US121321A/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US121321A (en) | Improvement in processes for restoring writing or printing on charred paper | |
| Banks | Paper cleaning | |
| US1462220A (en) | Label | |
| US895248A (en) | Renewing process for printing-ribbons. | |
| US105125A (en) | Improvement in paper for bonds, drafts, checks | |
| US2208288A (en) | Ink for writing on blueprints | |
| US104862A (en) | Improved compound for printers ink | |
| US305292A (en) | William john | |
| US342279A (en) | Adolph buchten | |
| US823691A (en) | Press-copying. | |
| US878505A (en) | Process for making half-tone cuts. | |
| DE2626891A1 (en) | Correcting sheet for covering errors on paper - contains plastic carrier foil, adhesive separating layer, pigment layer and adhesive layer | |
| US5511A (en) | Plate foe | |
| US348222A (en) | Ferts | |
| US144678A (en) | Improvement in treating paper and card-board to fix marks by metallic pencils | |
| AT86314B (en) | Receiver for telegraphs using an electrolyte to write down the characters. | |
| US55679A (en) | Improvement in forming metallic characters on paper | |
| DE462925C (en) | Process for marking silver halogen emulsions on any type of substrate by printing | |
| US200759A (en) | Improvement in methods of autographic printing | |
| US358901A (en) | tallmadge | |
| US458225A (en) | Frederick d | |
| US196466A (en) | Improvement in processes of producing paper printing-surfaces | |
| DE402886C (en) | Device to prevent the ink from staining in writing measuring devices with take-up rollers | |
| DE612411C (en) | Roll film spool | |
| US1289793A (en) | Indelible ink. |