US477486A - Homme andresen - Google Patents
Homme andresen Download PDFInfo
- Publication number
- US477486A US477486A US477486DA US477486A US 477486 A US477486 A US 477486A US 477486D A US477486D A US 477486DA US 477486 A US477486 A US 477486A
- Authority
- US
- United States
- Prior art keywords
- andresen
- paramido
- homme
- phenol
- parts
- 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
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 9
- PLIKAWJENQZMHA-UHFFFAOYSA-N 4-aminophenol Chemical compound NC1=CC=C(O)C=C1 PLIKAWJENQZMHA-UHFFFAOYSA-N 0.000 description 8
- 235000015320 potassium carbonate Nutrition 0.000 description 6
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 229940072033 potash Drugs 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 150000001447 alkali salts Chemical class 0.000 description 1
- -1 as described Chemical compound 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- WBZKQQHYRPRKNJ-UHFFFAOYSA-L disulfite Chemical compound [O-]S(=O)S([O-])(=O)=O WBZKQQHYRPRKNJ-UHFFFAOYSA-L 0.000 description 1
- 239000012458 free base Substances 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
- G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
- G03C5/29—Development processes or agents therefor
- G03C5/30—Developers
- G03C5/3021—Developers with oxydisable hydroxyl or amine groups linked to an aromatic ring
Definitions
- This invention relates to the development of photographic pictures by means of paramido-phenol or its chlorine, bromine, iodine oxy, aniido, and methyl derivatives or the carbonic and sulphonic acids of paramidophenol.
- the solution of the paramido-phenolnatrium obtained has to be weakened by adding five to fifty parts water, according to whether a strong or weak developer be required.
- the picture becomes completely developed and can afterward be fixed in the usual way.
- the above proportions may, however, be varied.
- For the meta-'bisulphite of potash may be substituted bisulphite of soda or sulphite of soda and for the carbonate of potash carbonate of soda or lithium.
- the mode of developing photographs which consists in forming a solution of paramido-phenol, a sulphite ot' potash, as described, and carbonate of potash, and treating the sensitive plate with such solution, substantially as described.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
UNITED. STATES PATENT OFFICE.
MOMME ANDRESEN, OF BERLIN, GERMANY.
PHOTOGRAPHIC DEVELOPER.
SPECIFICATION forming part of Letters Patent No. 477,486, dated June 21, 1892.
Application filed October 12. 1891. Serial No. 108, 184. No specimens.) Patentedin Germany January 27, 1891, No. 60,174; in
England January 30, 1891, No. 1,736, and in France February 7, 1891, No. 211,243.
To a whom it may concern.-
Be it known that I, MOMME ANDRESEN, of Berlin, in the Kingdom of Prussia, German Empire, have invented new and useful Improvements in Developers for Photographic Pictures, (for which patents have been obtained in France, No. 211,243, dated February 7,1891; in England, No. 1,736, dated January 30, 1891, and in Germany, No. 60,174, dated January 27, 1891;) and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to which it appertains to make and use the same.
This invention relates to the development of photographic pictures by means of paramido-phenol or its chlorine, bromine, iodine oxy, aniido, and methyl derivatives or the carbonic and sulphonic acids of paramidophenol.
Now, I have found by experiment that the substances mentioned above are exceptionall y suitable for developing photographic pictures, excelling the developing substances hitherto known by effecting an exceedingly rapid and energetic development, and consequently these substances are especially applicable for developing plates after short exposures. The negatives obtained are clear and well detailed and have a bluish-black color, which insures rapid printing. There can be prepared with the new developers two series of developing solutions, which contain the paramido phenol or its equivalents either in the form of the free base or as an alkali salt.
The following are examples of the prepara tion of these solutions:
Example I.Dissolve water, one thousand parts; hydrochloride of paramido-phenol, five parts; sulphite of soda, (crystal,) fifty parts; carbonate of potash, twenty-five parts.
Example 'II.-Dissolve in one hundred parts of boiling water thirty parts of metabisulphite of potash and hereupon ten parts hydrochloride of paramido-phenol. To this solution slowly add while stirring concentrated caustic soda until the precipitated paramido-phenol has just been redissolved. For practical use the solution of the paramido-phenolnatrium obtained has to be weakened by adding five to fifty parts water, according to whether a strong or weak developer be required. On immersing a photographic plate in the solutions prepared in the aforesaid manner the picture becomes completely developed and can afterward be fixed in the usual way. The above proportions may, however, be varied. For the meta-'bisulphite of potash may be substituted bisulphite of soda or sulphite of soda and for the carbonate of potash carbonate of soda or lithium.
I claim- 1. The herein-described mode of developing photographs, which consists in treating the sensitive plates with paramido-phenol or a derivative thereof, substantially as described.
2. The mode of developing photographs, which consists in forming a solution of paramido-phenol, a sulphite ot' potash, as described, and carbonate of potash, and treating the sensitive plate with such solution, substantially as described.
In testimony whereof I hereunto set my hand and affix my seal in the presence of two witnesses.
MOMME ANDRESEN. [L. s]
\Vitnesses:
THEonoR DIEHL, GUSTAV LUCHT.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US477486A true US477486A (en) | 1892-06-21 |
Family
ID=2546342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US477486D Expired - Lifetime US477486A (en) | Homme andresen |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US477486A (en) |
-
0
- US US477486D patent/US477486A/en not_active Expired - Lifetime
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