GB784898A - Apparatus for developing and/or fixing photographic printing material - Google Patents

Apparatus for developing and/or fixing photographic printing material

Info

Publication number
GB784898A
GB784898A GB34194/55A GB3419455A GB784898A GB 784898 A GB784898 A GB 784898A GB 34194/55 A GB34194/55 A GB 34194/55A GB 3419455 A GB3419455 A GB 3419455A GB 784898 A GB784898 A GB 784898A
Authority
GB
United Kingdom
Prior art keywords
liquid
rollers
roller
tube
flexible
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
GB34194/55A
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.)
Grinten Chem L V D
Chemische Fabriek L Van der Grinten NV
Original Assignee
Grinten Chem L V D
Chemische Fabriek L Van der Grinten NV
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 Grinten Chem L V D, Chemische Fabriek L Van der Grinten NV filed Critical Grinten Chem L V D
Publication of GB784898A publication Critical patent/GB784898A/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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Photographic Processing Devices Using Wet Methods (AREA)
  • Coating Apparatus (AREA)

Abstract

784,898. Photographic processing apparatus. CHEMISCHE FABRIEK L. VAN DER GRINTEN, N. V. Nov. 29, 1955 [Nov. 30, 1954], No. 34194/55. Drawings to Specification. Class 98(2) Apparatus for applying liquid to both sides of a sheet of photographic material such as diazotype paper comprises two liquid-applying rollers of diameter at least 15 mm. and length at least 30 times their diameter, at least one of the rollers being at least partially supported by the other roller and being flexible lengthwise so that if supported only at its ends it sags under its own weight by at least 0.1 per cent of its length. The flexible roller may be a tube such as of rubber closed at both ends, and this may be partially or completely filled with liquid (e.g. water, aqueous solutions or mercury), air under pressure, sand or gunshot. Alternatively the walls of the tube may be supported by a continuous row of rings or discs, by a spiral spring or by a number of solid cylinders ball-andsocketed together. If it is desired to provide the roller with trunnions by which it may be supported in bearings in the apparatus, the tube may be provided with a rigid core and the space between the core and the tube filled with a row of rings of outer diameter less than the internal diameter of the tube and with central holes of greater diameter than the core. Alternatively, the space may be partially or completely filled with liquid or granular bodies. The liquid may be divided into compartments by discs secured to the core. Two rollers only may be used, one rotating in a trough of liquid and supporting a flexible roller whose surface is provided with capillary recesses which are filled with liquid from the first roller when no sheet is between the rollers. Alternatively, two rollers may rotate in liquid and support between them either one flexible roller or two rollers one or both of which may be flexible. A doctor roller may be provided to remove excess liquid from one of the feed rollers. Any of the rollers may be provided with capillary receses such as pits or grooves. Specifications 656,674, 698,080 and 701,559 are referred to.
GB34194/55A 1954-11-30 1955-11-29 Apparatus for developing and/or fixing photographic printing material Expired GB784898A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL338703X 1954-11-30

Publications (1)

Publication Number Publication Date
GB784898A true GB784898A (en) 1957-10-16

Family

ID=19784622

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34194/55A Expired GB784898A (en) 1954-11-30 1955-11-29 Apparatus for developing and/or fixing photographic printing material

Country Status (5)

Country Link
US (1) US3000287A (en)
BE (1) BE543185A (en)
CH (1) CH338703A (en)
DE (1) DE1043808B (en)
GB (1) GB784898A (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3142241A (en) * 1960-03-17 1964-07-28 Zindler Lumoprint Kg Method for developing films, a device and a material for carrying out this method
US3145637A (en) * 1960-07-12 1964-08-25 Gen Aniline & Film Corp Diazotype development apparatus
US3233534A (en) * 1961-09-11 1966-02-08 Agfa Ag Apparatus for the production of dry prints by the silver salt diffusion process
US3402656A (en) * 1966-10-13 1968-09-24 Eastman Kodak Co Roller squeegee
BE639141A (en) * 1963-06-05
DE1263507B (en) * 1963-06-18 1968-03-14 Fuji Photo Film Co Ltd Device for treating the surfaces of moving webs, especially paper webs with light-sensitive overlay
GB1003436A (en) * 1963-09-20 1965-09-02 Ilford Ltd Photographic processing apparatus
US3262381A (en) * 1963-09-30 1966-07-26 Deluxe Lab Inc Method and apparatus for improving upon the reproduction of images recorded on a photographic film
US3346255A (en) * 1966-06-01 1967-10-10 Varityper Corp Liquid treatment of sheets
US3477356A (en) * 1967-05-04 1969-11-11 Peerless Photo Products Inc Photographic processing mechanism
US3874331A (en) * 1971-01-18 1975-04-01 Gaf Corp Apparatus for applying liquid to a web
DE2640527A1 (en) * 1976-09-09 1978-03-16 Hostert Automata USE FOR PHOTO DEVELOPING MACHINES
DE2749627A1 (en) * 1977-11-05 1979-05-10 Hoechst Ag DEVELOPMENT DEVICE FOR THE DEVELOPMENT OF FLAT DIAZOCOPY MATERIAL USING THE SEMI-HUMID PROCESS
US4961964A (en) * 1987-06-26 1990-10-09 Epic Products International Corp. Method for coating a web with wet ink thereon

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US580509A (en) * 1897-04-13 Half to george arthur johnston
DE641146C (en) * 1937-01-21 Renker & Belipa G M B H Device for developing blueprints
US42415A (en) * 1864-04-19 Improved elastic roller
US654194A (en) * 1899-10-31 1900-07-24 William H Twohy Wringer-roll.
US1057712A (en) * 1912-09-21 1913-04-01 Randolph Crompton Apparatus for developing photographs.
US1232053A (en) * 1914-01-05 1917-07-03 George A Lawrence Yielding roll.
GB254866A (en) * 1925-06-23 1926-07-15 Courtaulds Ltd Improvements in and relating to apparatus for sizing textile fibres
BE353508A (en) * 1927-08-22
FR696672A (en) * 1930-06-05 1931-01-06 Anciens Etablissements Salvado Improvements to photographic paper developing machines
US1906190A (en) * 1931-11-16 1933-04-25 Delta Mfg Co Surfacing tool
US2114378A (en) * 1936-11-30 1938-04-19 Oxford Varnish Corp Printing roll
FR849649A (en) * 1938-10-20 1939-11-28 Improvements to deformable support conveyor devices
GB534044A (en) * 1939-11-18 1941-02-26 Gedeon Genard Improvements in or relating to conveyors with resilient supports
BE449352A (en) * 1942-02-26
FR925787A (en) * 1946-04-19 1947-09-12 Photographic and heliographic paper developing machine
BE485112A (en) * 1947-10-06
GB698080A (en) * 1950-01-12 1953-10-07 Mason & Sons Ltd E N Improvements in or relating to photographic developing machines
US2626422A (en) * 1950-02-28 1953-01-27 Wingfoot Corp Lateral stretching of thermoelastic films

Also Published As

Publication number Publication date
CH338703A (en) 1959-05-31
US3000287A (en) 1961-09-19
DE1043808B (en) 1958-11-13
BE543185A (en)

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