GB190825370A - Improved Method of and Means for Determining the Process of Development of Sensitised Plates. - Google Patents
Improved Method of and Means for Determining the Process of Development of Sensitised Plates.Info
- Publication number
- GB190825370A GB190825370A GB190825370DA GB190825370A GB 190825370 A GB190825370 A GB 190825370A GB 190825370D A GB190825370D A GB 190825370DA GB 190825370 A GB190825370 A GB 190825370A
- Authority
- GB
- United Kingdom
- Prior art keywords
- development
- fogged
- plate
- determining
- developing
- 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
Links
Landscapes
- Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
Abstract
25,370. Brooks, A. A. Nov. 25. Drawings to Specification. Developing.-A method for determining when development is completed is based upon the principle that a fogged plate immersed in a developer will, in any condition of light, turn to a certain depth or shade of colour in a certain period of time, which is chiefly dependent upon the developer used. A small sensitized surface is fogged and developed at the same time as the plate, and when darkened to a standard depth the development is complete. A plate may be used partly fogged and partly coloured or shaded on the rest of the surface for comparison. The standaraized part may further be obtained by developing and fixing a fogged part. The standard shade may be somewhat lighter than that required for correct development to allow for judgment as to the correct time by a slight contrast.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB190825370T | 1908-11-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB190825370A true GB190825370A (en) | 1909-02-25 |
Family
ID=32440477
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB190825370D Expired GB190825370A (en) | 1908-11-25 | 1908-11-25 | Improved Method of and Means for Determining the Process of Development of Sensitised Plates. |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB190825370A (en) |
-
1908
- 1908-11-25 GB GB190825370D patent/GB190825370A/en not_active Expired
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