US736374A - Process of developing photographic pictures. - Google Patents
Process of developing photographic pictures. Download PDFInfo
- Publication number
- US736374A US736374A US14433203A US1903144332A US736374A US 736374 A US736374 A US 736374A US 14433203 A US14433203 A US 14433203A US 1903144332 A US1903144332 A US 1903144332A US 736374 A US736374 A US 736374A
- Authority
- US
- United States
- Prior art keywords
- photographic pictures
- developing photographic
- sulfonic acid
- developing
- pictures
- 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
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 5
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 4
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 2
- 235000010265 sodium sulphite Nutrition 0.000 description 2
- 241000212342 Sium Species 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- RWPGFSMJFRPDDP-UHFFFAOYSA-L potassium metabisulfite Chemical compound [K+].[K+].[O-]S(=O)S([O-])(=O)=O RWPGFSMJFRPDDP-UHFFFAOYSA-L 0.000 description 1
- 235000010263 potassium metabisulphite Nutrition 0.000 description 1
- BHZRJJOHZFYXTO-UHFFFAOYSA-L potassium sulfite Chemical compound [K+].[K+].[O-]S([O-])=O BHZRJJOHZFYXTO-UHFFFAOYSA-L 0.000 description 1
- 235000019252 potassium sulphite Nutrition 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- HRZFUMHJMZEROT-UHFFFAOYSA-L sodium disulfite Chemical compound [Na+].[Na+].[O-]S(=O)S([O-])(=O)=O HRZFUMHJMZEROT-UHFFFAOYSA-L 0.000 description 1
- 235000010262 sodium metabisulphite Nutrition 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- amidooxybenzyl sulfonic acid is described in a separate application for Letters Patent, filed February 20, 1903, Serial No. 144,332.
- sodium sulfite may be replaced by potassium sulfite, sodium pyrosulfite, or potassium pyrosulfite or the like.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
sium carbonate are introduced.
UNITED STATES Patented August 18, 1903.
PATENT OFFICE,
FRIEDRICH FISCHER AND HUGO GUNTRUM, OF ELBERFELD, GERMANY, ASSIGNORS TO FARBENFABRIKEN ELBERFELD 00., OF NEW YORK, I N. Y., A CORPORATION OF NEW YORK.
PROCESS OF D EVELOPING PHOTOGRAPHIC PICTURES.
SPECIFICATION forming part of Letters Patent No. 736,374, dated August 18, 1903. Application filed February 20, 1903. Serial No. 144,332. (No specimens.)
on so u is especially suitable for developing photographic pictures. The production of the said amidooxybenzyl sulfonic acid is described in a separate application for Letters Patent, filed February 20, 1903, Serial No. 144,332.
In carrying out the new process practically we can proceed as follows: Six grams of sodium sulfite are dissolved in one hundred cubic centimeters of water, and into the resulting solution one gram of m-amid o-o-oxybenzyl sulfonic acid and six grains of potas- The developer is thus ready for use.
In the above example sodium sulfite may be replaced by potassium sulfite, sodium pyrosulfite, or potassium pyrosulfite or the like.
Having thus described our invention and in what manner the same is to be performed, What we claim as new, and desire to secure by Letters Patent, is
1. The herein-described process of developing photographic pictures, which consists in subjecting them to the action of a solution containing amido-o-oxybenzyl sulfonic acid, substantially as hereinbefore described.
2. The process of developing photographic pictures which consists in subjecting them to the action of a solution containing amido-ooxybenzyl sulfonic acid, a preservative and an accelerator, substantially as hereinbefore described.
3. The process of developing photographic pictures which consists in subjecting them to the action of a solution containing amido-ooxybenzyl sulfonic acid, a sulfite and an alkali carbonate, substantially as hereinbefore described.
In testimony whereof we have signed our names in the presence of two subscribing witnesses.
FRIEDRICH FISCHER. HUGO GUNTRUM.
Witnesses:
O'rro KONIG, J. A. RITTERSHAUS.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US14433203A US736374A (en) | 1903-02-20 | 1903-02-20 | Process of developing photographic pictures. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US14433203A US736374A (en) | 1903-02-20 | 1903-02-20 | Process of developing photographic pictures. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US736374A true US736374A (en) | 1903-08-18 |
Family
ID=2804882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US14433203A Expired - Lifetime US736374A (en) | 1903-02-20 | 1903-02-20 | Process of developing photographic pictures. |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US736374A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5362610A (en) * | 1991-10-28 | 1994-11-08 | Konica Corporation | Photographic processing agent |
-
1903
- 1903-02-20 US US14433203A patent/US736374A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5362610A (en) * | 1991-10-28 | 1994-11-08 | Konica Corporation | Photographic processing agent |
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