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
Application number
Inventor
Arthur Augustus Brooks
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of GB190825370A publication Critical patent/GB190825370A/en
Expired legal-status Critical Current

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  • 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.
GB190825370D 1908-11-25 1908-11-25 Improved Method of and Means for Determining the Process of Development of Sensitised Plates. Expired GB190825370A (en)

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)

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