US2471607A - Facsimile recording papers - Google Patents
Facsimile recording papers Download PDFInfo
- Publication number
- US2471607A US2471607A US721163A US72116347A US2471607A US 2471607 A US2471607 A US 2471607A US 721163 A US721163 A US 721163A US 72116347 A US72116347 A US 72116347A US 2471607 A US2471607 A US 2471607A
- Authority
- US
- United States
- Prior art keywords
- facsimile recording
- recording papers
- paper
- lead
- facsimile
- 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
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 6
- BDAGIHXWWSANSR-UHFFFAOYSA-M Formate Chemical compound [O-]C=O BDAGIHXWWSANSR-UHFFFAOYSA-M 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000000020 Nitrocellulose Substances 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- HTUMBQDCCIXGCV-UHFFFAOYSA-N lead oxide Chemical compound [O-2].[Pb+2] HTUMBQDCCIXGCV-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920001220 nitrocellulos Polymers 0.000 description 2
- 229920002689 polyvinyl acetate Polymers 0.000 description 2
- 239000011118 polyvinyl acetate Substances 0.000 description 2
- 239000004408 titanium dioxide Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 1
- 241000287227 Fringillidae Species 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000008199 coating composition Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 150000004675 formic acid derivatives Chemical class 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910000464 lead oxide Inorganic materials 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/20—Duplicating or marking methods; Sheet materials for use therein using electric current
Definitions
- My present invention relates to facsimile recording paper and more particularly to a dry recording blank which utilizes an electrically discolorable coating and a conductive paper.
- Lead Formate 1.875 1. 875 Titanium Dioxide. 5.0 5.0 Zinc Dust 0.31 0.31 Nitrocellulose Lacqu 3. 6 Polyvinyl Acetate Solution 10 Thinner (such as Ethyl Acetate) l3. 20
- a dry conductive facsimile recording paper and an electrically discolorable coating therefor consisting essentially, in parts by relative weight, of lead formate 1.875, titanium dioxide 5.0, zinc dust 0.31. polyvinyl acetate solution 10 and ethyl acetate 20.
Description
Patented May 31, 1949 FACSIMILE RECORDING PAPERS Frank G. Calkin, Glen Rock, N. 1., assignor to Finch Telecommunications, Inc., Passaic, N. J a corporation of Delaware No Drawing. Application January 9, 1947, Serial No. 721,163
1 Claim.
My present invention relates to facsimile recording paper and more particularly to a dry recording blank which utilizes an electrically discolorable coating and a conductive paper.
Various materials have been used to coat or impregnate a conductive paper so that the surface of the paper will be discolored by the passage of an electric current therethrough.
Primarily, it is an object of my invention to utilize a lead formats in the normal coating composition, since this, from my experiments, produces a clear recording and a much better record with many attending advantages hereinafter described.
The foregoing and many other objects of my invention will become apparent in the following description:
In the formation of my dry blank for facsimile recording, I utilize first a paper which has been impregnated with an electrically conducted material, such as carbon in one of its many forms. Thus, for instance, a paper filled with about 40% graphite furnishes an appropriate conductive base. On this base, I apply a coating according to either of the following formulas:
Lead Formate 1.875 1. 875 Titanium Dioxide. 5.0 5.0 Zinc Dust 0.31 0.31 Nitrocellulose Lacqu 3. 6 Polyvinyl Acetate Solution 10 Thinner (such as Ethyl Acetate) l3. 20
2 obtained in the case of coatings which utilize nitrocellulose as a binder.
The desirable action of lead formate results principally from the fact that it decomposes at a relatively low temperature to produce metallic lead, plus probably some lead oxide. The reaction is as follows:
2Pb(HCO2)2 Pb+PbO+3COz+H2+HCHO While I have here described my invention in connection with the utilization of lead formate as the acting ingredient in the coating, I have also discovered that formates of copper, nickel, cadmium, and bismuth react in substantially the same manner as the lead formate.
In the foregoing I have described my invention solely in connection with a specific preferred embodiment thereof. Since many varations and modifications of my invention should now be obvious to those skilled in the art, I prefer to be bound not by the specific disclosure herein contained, but only by the appended claim.
I claim:
A dry conductive facsimile recording paper and an electrically discolorable coating therefor consisting essentially, in parts by relative weight, of lead formate 1.875, titanium dioxide 5.0, zinc dust 0.31. polyvinyl acetate solution 10 and ethyl acetate 20.
FRANK G. CALKIN.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 6,420 Morse May 1, 1849 1,880,449 Hickman et a1 Oct. 4, 1932 1,939,232 Sheppard et al Dec. 12, 1933 2,229,091 Kline Jan. 21, 1941 2,287,348 Hayden June 23, 1942 2,294,150 Kline Aug. 25, 1942 2,310,946 Finch Feb. 16, 1943 2,425,742 Kline Aug. 19, 1947
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US721163A US2471607A (en) | 1947-01-09 | 1947-01-09 | Facsimile recording papers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US721163A US2471607A (en) | 1947-01-09 | 1947-01-09 | Facsimile recording papers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2471607A true US2471607A (en) | 1949-05-31 |
Family
ID=24896806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US721163A Expired - Lifetime US2471607A (en) | 1947-01-09 | 1947-01-09 | Facsimile recording papers |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US2471607A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2833677A (en) * | 1954-06-09 | 1958-05-06 | Recording paper for spark recorders | |
| DE1063453B (en) * | 1956-04-14 | 1959-08-13 | Renker Belipa G M B H | Spark registration paper and process for its manufacture |
| US3441437A (en) * | 1958-02-12 | 1969-04-29 | Burroughs Corp | Recording medium and process of developing latent electrostatic image on a recording medium |
| US5017416A (en) * | 1989-10-17 | 1991-05-21 | International Paper Company | Paper for use in ion deposition printing |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6420A (en) * | 1849-05-01 | Improvement in electric telegraphs | ||
| US1880449A (en) * | 1930-08-07 | 1932-10-04 | Eastman Kodak Co | Tropochromic coating |
| US1939232A (en) * | 1932-07-13 | 1933-12-12 | Eastman Kodak Co | Chemigraphic materials |
| US2229091A (en) * | 1935-07-09 | 1941-01-21 | Western Union Telegraph Co | Telegraphic transmission of intelligence |
| US2287348A (en) * | 1939-05-11 | 1942-06-23 | West Virginia Pulp & Paper Co | Coating paper |
| US2294150A (en) * | 1939-02-16 | 1942-08-25 | Western Union Telegraph Co | Facsimile recording blank |
| US2310946A (en) * | 1939-04-07 | 1943-02-16 | William G H Finch | Facsimile recording paper |
| US2425742A (en) * | 1942-07-29 | 1947-08-19 | Western Union Telegraph Co | Electrosensitive recording blank |
-
1947
- 1947-01-09 US US721163A patent/US2471607A/en not_active Expired - Lifetime
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6420A (en) * | 1849-05-01 | Improvement in electric telegraphs | ||
| US1880449A (en) * | 1930-08-07 | 1932-10-04 | Eastman Kodak Co | Tropochromic coating |
| US1939232A (en) * | 1932-07-13 | 1933-12-12 | Eastman Kodak Co | Chemigraphic materials |
| US2229091A (en) * | 1935-07-09 | 1941-01-21 | Western Union Telegraph Co | Telegraphic transmission of intelligence |
| US2294150A (en) * | 1939-02-16 | 1942-08-25 | Western Union Telegraph Co | Facsimile recording blank |
| US2310946A (en) * | 1939-04-07 | 1943-02-16 | William G H Finch | Facsimile recording paper |
| US2287348A (en) * | 1939-05-11 | 1942-06-23 | West Virginia Pulp & Paper Co | Coating paper |
| US2425742A (en) * | 1942-07-29 | 1947-08-19 | Western Union Telegraph Co | Electrosensitive recording blank |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2833677A (en) * | 1954-06-09 | 1958-05-06 | Recording paper for spark recorders | |
| DE1063453B (en) * | 1956-04-14 | 1959-08-13 | Renker Belipa G M B H | Spark registration paper and process for its manufacture |
| US3441437A (en) * | 1958-02-12 | 1969-04-29 | Burroughs Corp | Recording medium and process of developing latent electrostatic image on a recording medium |
| US5017416A (en) * | 1989-10-17 | 1991-05-21 | International Paper Company | Paper for use in ion deposition printing |
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