GB190424910A - Improvements in Apparatus for Introducing, Developing, Washing, and Fixing, Photographic Plates, Films, or Sensitized Surfaces, without the use of a Dark Room. - Google Patents

Improvements in Apparatus for Introducing, Developing, Washing, and Fixing, Photographic Plates, Films, or Sensitized Surfaces, without the use of a Dark Room.

Info

Publication number
GB190424910A
GB190424910A GB190424910DA GB190424910A GB 190424910 A GB190424910 A GB 190424910A GB 190424910D A GB190424910D A GB 190424910DA GB 190424910 A GB190424910 A GB 190424910A
Authority
GB
United Kingdom
Prior art keywords
developing
dark
films
introducing
washing
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
Hans Tirmann
Hugo Tirmann
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 GB190424910A publication Critical patent/GB190424910A/en
Expired legal-status Critical Current

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  • Mirrors, Picture Frames, Photograph Stands, And Related Fastening Devices (AREA)
  • Devices For Medical Bathing And Washing (AREA)

Abstract

24,910. Tirmann, H., and Tirmann, H. Nov. 16. Dark boxes; dark slides; dishes.- Improvements are described in the dark box and developing arrangements described in Specification No. 19,164, A.D. 1904. Between the eye-piece and the developing-dish are fitted variously coloured slides, which can be placed singly in front of the eyepiece to vary the illumination according to the stage of development. The developing-bath comprises two frames a, Fig. 1, separated by packing d. The sides c are made of transparent material. The dark slide comprises the open frame e, Fig. 2, a back-plate f with springs h and light-excluding packing i, and a front sliding shutter. The back f and shutter can be removed, and the open frame e is used in place of the special frame for manipulating the plate in developing. The dark slide must be made of material which is not affected by the chemicals used.
GB190424910D 1904-11-16 1904-11-16 Improvements in Apparatus for Introducing, Developing, Washing, and Fixing, Photographic Plates, Films, or Sensitized Surfaces, without the use of a Dark Room. Expired GB190424910A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB190424910T 1904-11-16

Publications (1)

Publication Number Publication Date
GB190424910A true GB190424910A (en) 1905-10-19

Family

ID=32166640

Family Applications (1)

Application Number Title Priority Date Filing Date
GB190424910D Expired GB190424910A (en) 1904-11-16 1904-11-16 Improvements in Apparatus for Introducing, Developing, Washing, and Fixing, Photographic Plates, Films, or Sensitized Surfaces, without the use of a Dark Room.

Country Status (1)

Country Link
GB (1) GB190424910A (en)

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