GB137703A - Improvements in or relating to the development and chemical treatment of photographic film - Google Patents

Improvements in or relating to the development and chemical treatment of photographic film

Info

Publication number
GB137703A
GB137703A GB868919A GB868919A GB137703A GB 137703 A GB137703 A GB 137703A GB 868919 A GB868919 A GB 868919A GB 868919 A GB868919 A GB 868919A GB 137703 A GB137703 A GB 137703A
Authority
GB
United Kingdom
Prior art keywords
tank
drum
portass
relating
development
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
GB868919A
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
Priority to GB868919A priority Critical patent/GB137703A/en
Publication of GB137703A publication Critical patent/GB137703A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03D—APPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS; ACCESSORIES THEREFOR
    • G03D13/00—Processing apparatus or accessories therefor, not covered by groups G11B3/00 - G11B11/00
    • G03D13/02—Containers; Holding-devices
    • G03D13/04—Trays; Dishes; Tanks ; Drums
    • G03D13/046—Drums; Films convolutely fixed on the side of the drum

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Photographic Developing Apparatuses (AREA)

Abstract

137,703. Portass, S. M., Portass, F. W., and Portass, C. April 7, 1919. Containers for roll films. - For developing lengths of film, a drum 2 having a helical path 5 is used with a tank. The tank may be annular in shape, in which case the drum 2 fits in the annular space between the inside and outside surfaces 4, 3. In this form, the drum is open at both ends. Alternatively, the drum may be closed at one end and used with an ordinary cylindrical tank. A movable clip attachment is provided on the drain for attaching the end of the film. With an annular-shaped tank, a spout 7 is formed on the inner surface for filling and emptying the tank.
GB868919A 1919-04-07 1919-04-07 Improvements in or relating to the development and chemical treatment of photographic film Expired GB137703A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB868919A GB137703A (en) 1919-04-07 1919-04-07 Improvements in or relating to the development and chemical treatment of photographic film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB868919A GB137703A (en) 1919-04-07 1919-04-07 Improvements in or relating to the development and chemical treatment of photographic film

Publications (1)

Publication Number Publication Date
GB137703A true GB137703A (en) 1920-01-22

Family

ID=9857333

Family Applications (1)

Application Number Title Priority Date Filing Date
GB868919A Expired GB137703A (en) 1919-04-07 1919-04-07 Improvements in or relating to the development and chemical treatment of photographic film

Country Status (1)

Country Link
GB (1) GB137703A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2530734A (en) * 1947-11-04 1950-11-21 Ralph I Salzman Film developing tank with rotatable film carrier

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2530734A (en) * 1947-11-04 1950-11-21 Ralph I Salzman Film developing tank with rotatable film carrier

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