US3714882A - Apparatus for developing exposed light-sensitive sheets - Google Patents

Apparatus for developing exposed light-sensitive sheets Download PDF

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Publication number
US3714882A
US3714882A US00156840A US3714882DA US3714882A US 3714882 A US3714882 A US 3714882A US 00156840 A US00156840 A US 00156840A US 3714882D A US3714882D A US 3714882DA US 3714882 A US3714882 A US 3714882A
Authority
US
United States
Prior art keywords
liquid
roller
combination
sheet
plane
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
Application number
US00156840A
Other languages
English (en)
Inventor
K Schranz
W Hunicke
J Busch
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.)
Agfa Gevaert AG
Original Assignee
Agfa Gevaert AG
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 Agfa Gevaert AG filed Critical Agfa Gevaert AG
Application granted granted Critical
Publication of US3714882A publication Critical patent/US3714882A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • G03D5/00—Liquid processing apparatus in which no immersion is effected; Washing apparatus in which no immersion is effected
    • G03D5/06—Applicator pads, rollers or strips
    • G03D5/067—Rollers

Definitions

  • the bias of the peripheral surfaces of idler rollers l3 against the upper surface of the sheet 5 should be selected with a view to avoid undesirable flexing of the sheet during travel along the roller-shaped mem bers 1, 2.
  • the axes of the members 1 and 2 are preferably parallel to the axes of the idler rollers 13 and to the axis of shafts 15 as well as to the plane of the sheet 5; this insures a highly desirable uniform application of liquid layers 7, 6 by the members 2 and uniform removal of such layers by the peripheral surfaces of the members 1.
  • the liquid removing and liquid applying characteristics of the roller-shaped members 1 and 2 depend to a certain extent on the configuration of menisci 3 and 4 which are respectively formed upstream of the line of contact between the sheet 5 and the member 1, and downstream of the line of contact between the sheet 5 and member 2 (see FIG. 1).
  • the development of menisci 3, 4 and the opposite sides of lines of contact between the members 1, 2 and the sheet 5 is due to the fact that the members 1, 2 rotate in opposite directions.
  • the light sensitive material at the underside of the sheet 5 rests directly on the peripheral surfaces of the members 1, 2 or is separated therefrom by a very thin film of liquid.
  • the meniscus 3 represents a pileup or accumulation of liquid upstream of the zone where the liquid is being removed from the sheet 5 by the member 1 for transport into the trough 8.
  • the meniscus 4 constitutes an accumulation of liquid which is being transferred to the sheet 5 by the member 2 to form the layer 6.
  • the idler rollers 13 contribute to the formation of menisci 3 by biasing the sheet 5 against the members

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Photographic Processing Devices Using Wet Methods (AREA)
US00156840A 1970-06-26 1971-06-25 Apparatus for developing exposed light-sensitive sheets Expired - Lifetime US3714882A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702031648 DE2031648A1 (de) 1970-06-26 1970-06-26 Vorrichtung zur Entwicklung fotografischer Schichtträger

Publications (1)

Publication Number Publication Date
US3714882A true US3714882A (en) 1973-02-06

Family

ID=5775046

Family Applications (2)

Application Number Title Priority Date Filing Date
US714882D Pending USB714882I5 (enrdf_load_stackoverflow) 1970-06-26
US00156840A Expired - Lifetime US3714882A (en) 1970-06-26 1971-06-25 Apparatus for developing exposed light-sensitive sheets

Family Applications Before (1)

Application Number Title Priority Date Filing Date
US714882D Pending USB714882I5 (enrdf_load_stackoverflow) 1970-06-26

Country Status (4)

Country Link
US (2) US3714882A (enrdf_load_stackoverflow)
CH (1) CH526800A (enrdf_load_stackoverflow)
DE (1) DE2031648A1 (enrdf_load_stackoverflow)
FR (1) FR2096137A5 (enrdf_load_stackoverflow)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4126101A (en) * 1976-07-09 1978-11-21 Minolta Camera Kabushiki Kaisha Excess developing solution removing apparatus
US4142795A (en) * 1977-09-29 1979-03-06 Addressograph-Multigraph Corporation Developer apparatus for diazo copying machines
US4737810A (en) * 1985-09-10 1988-04-12 Fuji Photo Film Co., Ltd. Photosensitive material developing apparatus
EP0801326A1 (en) * 1996-04-09 1997-10-15 Noritsu Koki Co., Ltd. Cleaning apparatus for photosensitive material
US5734946A (en) * 1995-11-08 1998-03-31 Agfa Ag Processing device for photographic materials
US20090279379A1 (en) * 2008-05-07 2009-11-12 Gurney John J Blender for containerized products

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR371276A (fr) * 1906-01-17 1907-03-04 Photographie Soc Ind De Procédé de développement, fixage, lavage et traitement chimique en général des papiers ou cartons photographiques en bandes continues
GB387781A (en) * 1931-11-13 1933-02-16 Halden & Company Ltd J Improvements in and relating to apparatus for performing developing and like operations on photographic prints
US3313913A (en) * 1961-03-06 1967-04-11 Zindler Lumoprint Kg Electrically heated machine for producing photographic copies
GB1066913A (en) * 1965-01-07 1967-04-26 Kodak Ltd Photographic processing apparatus
US3330196A (en) * 1965-05-17 1967-07-11 Polaroid Corp Apparatus for treating sheet materials with a liquid
US3465663A (en) * 1965-09-23 1969-09-09 Ilford Ltd Photographic processing apparatus
US3477356A (en) * 1967-05-04 1969-11-11 Peerless Photo Products Inc Photographic processing mechanism

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR371276A (fr) * 1906-01-17 1907-03-04 Photographie Soc Ind De Procédé de développement, fixage, lavage et traitement chimique en général des papiers ou cartons photographiques en bandes continues
GB387781A (en) * 1931-11-13 1933-02-16 Halden & Company Ltd J Improvements in and relating to apparatus for performing developing and like operations on photographic prints
US3313913A (en) * 1961-03-06 1967-04-11 Zindler Lumoprint Kg Electrically heated machine for producing photographic copies
GB1066913A (en) * 1965-01-07 1967-04-26 Kodak Ltd Photographic processing apparatus
US3330196A (en) * 1965-05-17 1967-07-11 Polaroid Corp Apparatus for treating sheet materials with a liquid
US3465663A (en) * 1965-09-23 1969-09-09 Ilford Ltd Photographic processing apparatus
US3477356A (en) * 1967-05-04 1969-11-11 Peerless Photo Products Inc Photographic processing mechanism

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4126101A (en) * 1976-07-09 1978-11-21 Minolta Camera Kabushiki Kaisha Excess developing solution removing apparatus
US4142795A (en) * 1977-09-29 1979-03-06 Addressograph-Multigraph Corporation Developer apparatus for diazo copying machines
US4737810A (en) * 1985-09-10 1988-04-12 Fuji Photo Film Co., Ltd. Photosensitive material developing apparatus
US5734946A (en) * 1995-11-08 1998-03-31 Agfa Ag Processing device for photographic materials
EP0801326A1 (en) * 1996-04-09 1997-10-15 Noritsu Koki Co., Ltd. Cleaning apparatus for photosensitive material
US5911254A (en) * 1996-04-09 1999-06-15 Noritsu Koki Co., Ltd. Cleaning apparatus for photosensitive material
US20090279379A1 (en) * 2008-05-07 2009-11-12 Gurney John J Blender for containerized products

Also Published As

Publication number Publication date
USB714882I5 (enrdf_load_stackoverflow)
DE2031648A1 (de) 1972-01-13
FR2096137A5 (enrdf_load_stackoverflow) 1972-02-11
CH526800A (de) 1972-08-15

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