US481770A - Albert schlumberger - Google Patents
Albert schlumberger Download PDFInfo
- Publication number
- US481770A US481770A US481770DA US481770A US 481770 A US481770 A US 481770A US 481770D A US481770D A US 481770DA US 481770 A US481770 A US 481770A
- Authority
- US
- United States
- Prior art keywords
- colors
- strips
- paper
- coincident
- sides
- 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
- 239000003086 colorant Substances 0.000 description 34
- 150000001875 compounds Chemical class 0.000 description 10
- QDOXWKRWXJOMAK-UHFFFAOYSA-N Chromium(III) oxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000000049 pigment Substances 0.000 description 4
- RGCKGOZRHPZPFP-UHFFFAOYSA-N Alizarin Chemical compound C1=CC=C2C(=O)C3=C(O)C(O)=CC=C3C(=O)C2=C1 RGCKGOZRHPZPFP-UHFFFAOYSA-N 0.000 description 2
- 241001149655 Rubia tinctorum Species 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 229910052803 cobalt Inorganic materials 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000001054 red pigment Substances 0.000 description 2
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
- B42D25/29—Securities; Bank notes
Definitions
- the object of the present invention is to provide paper to be employed for bank-notes, bonds, checks, and similar papers of value, or for documents and legal instruments in such a manner as to render forgery of such papers impossible.
- This invention consists in paper for banknotes,bonds, checks, &c., printed exactly alike on both sides and in sucha manner that both impressions coincide perfectly, so that upon holding the paper against the light only one single impression is apparent.
- Each of the two impressions is, moreover, made in two or more colors, the colors on one side being arranged in the reverse order to those on the other, so that the impression appears in two or more colors by reflected light, while under transmitted light only one color (the compound color resulting from the mixture of two of the colors employed) appears.
- Figure 1 represents the 0bverse
- Fig. 2 the reverse, of such a checkblank as it will appear when the blank is turned over from right to left.
- My invention is preferably carried out as follows: When it is desired to print in three colors on each side of the paper-e. g., blue, violet, and redthe ink-fountain is provided with three compartments containing the corresponding blue, violet, and red pigments, and the said pigments are transferred in strips of the required width upon the fountain-roller. The pigments orinks are thence transferred to the doctor-roller in annular strips, thence upon the distributing-rollers, and by these finally to the printing-form in straight strips. From the form the strips of color are transferred to the paper. This method of simultaneously imprinting one side of the paper with several strips of color is well known and offers no difficulties.
- A, B, and 0 represent sections or areas on the obverse, Fig. 1, of the check-blank, which are printed in blue, violet, and red, respectively, while A, B, and G represent coincident areas and strips on the reverse, Fig.2, of the check-blank printed in red, violet, and blue, respectively.
- the compound color on viewing the check-blank by'transmitted light will be violet for all the sections, and the check-blank Will appear of a uniform violet color on holding the same up to the light.
- other colors may be employed without departing from the principle of the invention.
- a safety-paper for papers of value, documents, and the like consisting in a sheet printed on both sides With coincident designs in such a manner that on holding the paper against the light only one impression is apparent, substantially as shown and described 2.
- a safetypaper consisting in a sheet printed on both sides with coincident areas of various colors, the colors of the pairs of coincident areas all combining to produce the same compound color by transmitted light.
- a safetypaper consistingin a sheet printed on both sides with coincident designs, the designs being arranged in coincident areas of various colors, the colors of the pairs of coincident areas combining to produce the same compound color.
- a safety paper consisting in a sheet printed on both sides with coincident designs in various colors arranged in strips, the strips on both sides being coincident and the same colors beingemployed on both sides but arranged in reverse order.
Description
(ModeL) A. SGHLUMBERGER.
SAFETY PAPER.
No. 481,770, Patented Aug. 30, 1892.
X X. X T M. F K N A WIN: A W T A N (ravens?) UNITED STATES PATENT OFFICE.
ALBERT SCHLUMBERGER, OF PARIS, FRANCE.
SAFETY-PAPER.
SPECIFICATION forming part of Letters Patent No. 481,770, dated August 30, 1892.
Application filed January 4, 1892. Serial No. 417,035. (Specimens) Patentedin France May 22, 1891, No. 213.226.
To all whom it may concern:
Be it known that I, ALBERT SCHLUMBERGER, a resident of the city of Paris, France, have invented a new and useful Improvement in' Safety-Paper, (for which I have obtained a patentin France, No. 213,226, dated May 22,1891,) of which the following is a specification.
The object of the present invention is to provide paper to be employed for bank-notes, bonds, checks, and similar papers of value, or for documents and legal instruments in such a manner as to render forgery of such papers impossible.
This invention consists in paper for banknotes,bonds, checks, &c., printed exactly alike on both sides and in sucha manner that both impressions coincide perfectly, so that upon holding the paper against the light only one single impression is apparent. Each of the two impressions is, moreover, made in two or more colors, the colors on one side being arranged in the reverse order to those on the other, so that the impression appears in two or more colors by reflected light, while under transmitted light only one color (the compound color resulting from the mixture of two of the colors employed) appears.
In the accompanying drawings I have represented a check-blank embodying my invention.
In the drawings, Figure 1 represents the 0bverse, and Fig. 2 the reverse, of such a checkblank as it will appear when the blank is turned over from right to left.
My invention is preferably carried out as follows: When it is desired to print in three colors on each side of the paper-e. g., blue, violet, and redthe ink-fountain is provided with three compartments containing the corresponding blue, violet, and red pigments, and the said pigments are transferred in strips of the required width upon the fountain-roller. The pigments orinks are thence transferred to the doctor-roller in annular strips, thence upon the distributing-rollers, and by these finally to the printing-form in straight strips. From the form the strips of color are transferred to the paper. This method of simultaneously imprinting one side of the paper with several strips of color is well known and offers no difficulties. Nor is there any difficulty in imprinting the other (reverse) side With strips of color coincident with those on the first (obverse) side. It is, however, new in my invention to select and employ such colors for each pair of coincident or superincumbent strips that when the paper is held up to the light and therefore viewed by transmitted light all the coincident strips of color on both sides of the sheet will produce a single common compound color-only. It is, moreover, new to print designs upon these colored strips on both sides of the sheet which exactly coincide and cover each other and whereby the several colors are brought out in relief by reflected light.
Various suitable colors may be employed for printing. I find it advantageous to use cobalt-blue, madder-lake, a mixture of madder and cobalt or chrome-green.
In the drawings, A, B, and 0 represent sections or areas on the obverse, Fig. 1, of the check-blank, which are printed in blue, violet, and red, respectively, while A, B, and G represent coincident areas and strips on the reverse, Fig.2, of the check-blank printed in red, violet, and blue, respectively. By this arrangement the compound color on viewing the check-blank by'transmitted light will be violet for all the sections, and the check-blank Will appear of a uniform violet color on holding the same up to the light. Of course other colors may be employed without departing from the principle of the invention.
The insertion of the second printing form or stamp, as well as the imposition of the reversed sheet thereon, so that the color-strips as well as the designs on both sides of the sheet exactly coincide and cover each other, require a certain amount of skill and practice, it is true, and such work can be carried out only in a printing establishment equipped with high-class printing-presses and em ploying skilled workmen. The preparation of the two engraved stamps, which must be exactlysymmetrical, especially requires extraordinarily-exact workmanship, inasmuch as the minutest deviation in the designs on the sheet printed on both sides with the same design but in different colors is discovered at once. The selection of the colors also is difficult and demands the knowledge of an expert. Precisely these difficulties afford great security against forgery by imitation, because this demands not only an exceedingly-high IOO order of engraving and expert knowledge of thepigments employed,but also an excellentlyequipped printing-office-i. e., it requires advantages which are combined only in the best printing establishments.
"What I claim, and desire to secure by Letters Patent, is-
1. A safety-paper for papers of value, documents, and the like, consisting in a sheet printed on both sides With coincident designs in such a manner that on holding the paper against the light only one impression is apparent, substantially as shown and described 2. A safetypaper consisting in a sheet printed on both sides with coincident areas of various colors, the colors of the pairs of coincident areas all combining to produce the same compound color by transmitted light.
3. A safetypaper consistingin a sheet printed on both sides with coincident designs, the designs being arranged in coincident areas of various colors, the colors of the pairs of coincident areas combining to produce the same compound color.
4. A safety paper consisting in a sheet printed on both sides with coincident designs in various colors arranged in strips, the strips on both sides being coincident and the same colors beingemployed on both sides but arranged in reverse order.
I11 testimony whereof I have signed this specification in the presence of two subscribin g" Witnesses.
ALBERT SOHLUMBERGER.
Witnesses:
RoBT. M. IIooPEn, E. P. l\1[AoLEAN.
Publications (1)
Publication Number | Publication Date |
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US481770A true US481770A (en) | 1892-08-30 |
Family
ID=2550622
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US481770D Expired - Lifetime US481770A (en) | Albert schlumberger |
Country Status (1)
Country | Link |
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US (1) | US481770A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5291243A (en) * | 1993-02-05 | 1994-03-01 | Xerox Corporation | System for electronically printing plural-color tamper-resistant documents |
-
0
- US US481770D patent/US481770A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5291243A (en) * | 1993-02-05 | 1994-03-01 | Xerox Corporation | System for electronically printing plural-color tamper-resistant documents |
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