[go: up one dir, main page]

US3299791A - Device for developing copying paper - Google Patents

Device for developing copying paper Download PDF

Info

Publication number
US3299791A
US3299791A US367765A US36776564A US3299791A US 3299791 A US3299791 A US 3299791A US 367765 A US367765 A US 367765A US 36776564 A US36776564 A US 36776564A US 3299791 A US3299791 A US 3299791A
Authority
US
United States
Prior art keywords
rollers
copying paper
vent
support
tank
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
US367765A
Other languages
English (en)
Inventor
Fukuda Susumu
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.)
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film Co Ltd
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 Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Application granted granted Critical
Publication of US3299791A publication Critical patent/US3299791A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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

  • a device for developing copying paper which comprises electromagnetically vibrated, liquid-containing tanks having vents in their bottom walls.
  • These tanks comprise a developer tank and a fixer tank mounted within a housing in a series arrangement.
  • the developer tank and the fixer tank separately drop a developer and a fixer responsive to vibrations of the respective tank, the developer and fixer dropping onto respective rollers positioned beneath the tanks.
  • copying paper passing between the rollers is developed and fixed, with sensitized paper or film, treated with halogenized silver emulsion for copying purposes being processed through both baths for treatment by developer and a fixer, and a sensitized paper or film treated with a positive sensitizer being processed only through a single bath where it is treated solely by a developer.
  • the primary object of the invention is to prevent the aging of treating solution and render it possible to treat with an ever-fresh solution.
  • Another object of the invention is to provide means by which to make use of a solution to the last drop, whereby the consumption of the solution is decreased and developing greatly simplified and speeded up.
  • FIG. 1 is a longitudinal sectional view of the device according to this invention.
  • FIG. 2 is a schematic connection diagram of the device according to this invention.
  • the device provided by the invention is basically made up of two tanks and eight rollers.
  • a rectangular developer tank 1 and fixer tank 2 are made of material free from corrosion by a developer and a fixer, such as syntheti resin like polystyrene.
  • Each tank 1 and 2 is formed with a long narrow vent in its bottom wall extending parallel to the axes of rollers beneath their respective tank.
  • the tanks are supported by vibration plates 4, 4, and the horizontal ends of these vibration plates 4- are secured in supporting frames 6 within housing or frame 5.
  • Each tank is mounted in the center of a vibration member 4 in a disengageable manner.
  • a magnetic plate 7, such as a rubber magnet is secured to the free end of each vibration plate 4.
  • a stopper 8, for each tank, closes an opening through which a solution may be poured into or poured out of the respective tank.
  • the lower rollers 9 and 10 have an endless belt 11 trained therearound, and the lower roller 9 is driven by a motor 19 (FIG. 2) through a reduction gear (not shown). With lower roller 9b being driven, lower roller 10 is driven through the belt 11, and the upper rollers 9 and 10 are rotated by contact with the belt 11.
  • fixer tank 2 wherein a pair of superposed parallel fixer rollers 12, 12 are arranged beneath the bottom opening or vent 3 of tank 2, and a pair of squeezing rollers 13, 13 are arranged in parallel superposed relation at a spacing relative to rollers 12.
  • the lower rollers 12 and 13 have an endless belt 14 trained therearound, and they are driven in the same manner as the rollers 9 and 10 associated with tank 1.
  • a suitable clearance is provided between the upper applying rollers 9 and 12 and the discharge opening or vents 3.
  • the upper applying rollers 9 and 12 face a respective vent or discharge openings with a suitable clearance in such a manner that vibration of a respective elastic plate 4 lowers the associated tank 1 or 2 to bring its vent or discharge opening 3 into contact with the surface of the associated applying roller, whereby the circumferential surface of the roller is moistened.
  • Microswitches 15 and 16 that are turned on by the contact of the distal end of paper are provided on the entry side of the applying rollers 9 and 12.
  • Electromagnets 17 and 18 are provided above the respective magnetic plates 7, 7, so that a magnetic circuit can be established between the electromagnets 17 and 18 and the magnetic plates 7, 7.
  • a source of AC. potential is conected to the terminals 20 and, when the switch is closed, motor 19 is energized to actuate the rollers.
  • Normally opened microswitches 15 and 16 are connected across the energizing circuit for motor 19, each microswitch 15, 16 being in series with respective electromagnets 17 and 18, and the two series circuits being independent of each other.
  • this strip closes the microswitch to energize the electromagnet 17.
  • the energized electromagnet 17 causes repetitive attraction and repulsion of the associated magnetic plate 7, thereby setting into vibration the vibration plate 4. In turn, this oscillates the associated tank 1 up and down.
  • microswitch 16 is closed to energize electromagnet 18 whereby the left hand vibration 4 is set into vibration resulting in an oscillation of the tank 2.
  • the liquid in the tanks is also oscillated due to its inertia.
  • the liquid is discharged from the vents 3 due to the inertia of the liquid and falls in drops on rollers 9 and 12 to moisten the latter.
  • the quantity of the liquid thus applied to the rollers can be suitably regulated by regulating the amplitude and frequency of vibration.
  • This device which comprises the foregoing mechanism is worked in such a manner that, firstly, terminal 20 are connected with an AC. power source, the rollers are actuated by motor 19 and then copying paper 21 with its sensitized surface held upward being inserted into the inlet 22 of the apparatus body, the switch 15 turns on is closed, and the electromagnet 17 starts working.
  • This actuation sets the vibration plate 4 into up-and-down motion, causing the liquid tank 1, in turn, to repeatedly move up and down at short intervals, whereby the circumferential surface of the rollers is moistened by intermittent contact of the vent 3 with said rollers. As said action is repeated in very short cycles, the rollers are evenly moistened on their whole circumferential surface.
  • the developing device of this invention is so operated as to evenly apply a treating solution to the circumferential surface of rollers only when copying paper is passed through said rollers. Hence it always provides a perfect developing treatment in that an ever-fresh solution is applied evenly over the whole surface of paper. Thus, not only is economic use of solution made possible, but ageing of solution is prevented.
  • Copying paper developing apparatus comprising, in combination, at least one horizontally extending elastic support; means fixedly supporting one end of said support; electromagnetic vibrating means operatively associated with the free end of said support and operable, when energized, to vibrate said support in a vertical direction; a treatment liquid tank supported on said support for vibration thereby, said tank having a bottom wall formed with a transversely extending vent; a pair of liquid applying rollers arranged in parallel superposed relation below and in alignment with said vent, the cylindrical surface of the upper one of said rollers being spaced from said vent; driving means operable, when energized, to rotate said rollers to draw copying paper therebetween; a normally opened switch positioned in advance of said rollers in the path of the copying paper for closure by the latter as it is fed to said rollers; and an energizing circuit for said electromagnetic vibrating means including, in series with the latter, a source of potential and said switch; whereby as copying paper is fed to said liquid applying rollers, said treatment liquid tank is vibrated vertically to discharge
  • Copying paper developing apparatus including a pair of squeezing rollers arranged in parallel superposed relation downstream of said liquid applying rollers and effective to squeeze the liquid treated copying paper therebetween to remove excess liquid from the copying papers.
  • Copying paper developing apparatus including a belt interconnecting the two lower rollers of said two pairs of rollers.
  • said driving means is an electric motor; an energizing circuit for said electric motor connected to said source of potential and including a normally opened switch; said energizing ircuit for said electromagnetic vibrating means being connected in parallel with said energizing circuit for said electric motor and between said electric motor and said normally opened switch for the energizing circuit of the latter.
  • Copying paper developing apparatus including a second horizontally extending elastic support; means fixedly supporting one end of said second support; second electromagnetic vibrating means operatively associated with the free end of said second support and operable when energized, to vibrate said second support; said treatment liquid tank containing a developer; a fixer liquid tank supported on said second support for vibration thereby, said fixer liquid tank having a bottom wall formed with a transversely extending vent; a pair of liquid applying rollers arranged in parallel superposed relation below and in alignment with the vent in said fixer liquid tank, the cylindrical surface of the upper one of said fixer liquid applying rollers being spaced from the vent of said fixer liquid tank; said fixer liquid applying rollers being aligned along the path of copying paper travel with said developer liquid applying rollers; driving means operable, when energized, to rotate said fixer liquid applying rollers to draw co ying paper therebetween; and a second normally opened switch positioned in advance of said fixer liquid applying rollers in the path of the copying paper for closure by
  • Copying paper developing apparatus including two pairs of squeeze rollers each arranged downstream, with respect to the travel of the copying paper, of a respective one of said developer applying rollers and said fixer liquid applying rollers; means drivingly connecting one pair of squeeze rollers to said developer applying rollers; and means drivingly connecting the other pair of squeeze rollers to said fixer liquid applying rollers.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Wet Developing In Electrophotography (AREA)
  • Photographic Processing Devices Using Wet Methods (AREA)
US367765A 1963-05-27 1964-05-15 Device for developing copying paper Expired - Lifetime US3299791A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2734863 1963-05-27

Publications (1)

Publication Number Publication Date
US3299791A true US3299791A (en) 1967-01-24

Family

ID=12218521

Family Applications (1)

Application Number Title Priority Date Filing Date
US367765A Expired - Lifetime US3299791A (en) 1963-05-27 1964-05-15 Device for developing copying paper

Country Status (2)

Country Link
US (1) US3299791A (de)
DE (1) DE1265581B (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3453138A (en) * 1966-07-27 1969-07-01 Polaroid Corp Photographic processing apparatus and method
US3774574A (en) * 1970-12-10 1973-11-27 Fuji Photo Film Co Ltd Development device for electrophotography
US3783827A (en) * 1970-12-30 1974-01-08 Fuji Photo Film Co Ltd Liquid development apparatus for electrophotography
US3830199A (en) * 1971-03-24 1974-08-20 Ricoh Kk Device for developing an electrostatic image with a developing fluid
US4142194A (en) * 1976-02-09 1979-02-27 E. I. Du Pont De Nemours And Company Web processor
US4294533A (en) * 1978-03-23 1981-10-13 E. I. Du Pont De Nemours And Company Apparatus for pre-conditioning film
US5752121A (en) * 1995-09-27 1998-05-12 Eastman Kodak Company Photographic processing apparatus
EP0908770A1 (de) * 1997-10-09 1999-04-14 Eastman Kodak Company Verarbeitung von photographischem Material

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US936472A (en) * 1909-06-18 1909-10-12 Wilhelm Pfanhauser Mechanical arrangement for electroplating objects.
US2296861A (en) * 1940-08-08 1942-09-29 Edward B Fallon Glue applicator
FR1285409A (fr) * 1961-01-13 1962-02-23 Kodak Pathe Nouvelle machine de traitement photographique semi-humide
US3104603A (en) * 1961-02-23 1963-09-24 Photo Entwicklungsgerate Ag Method and apparatus for wetting sheets of photographic foil material

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1148139B (de) * 1960-01-28 1963-05-02 Zindler Lumoprint Kg Vorrichtung zur Entwicklung von Schichttraegerboegen mit einseitiger Benetzung der Schichttraegerboegen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US936472A (en) * 1909-06-18 1909-10-12 Wilhelm Pfanhauser Mechanical arrangement for electroplating objects.
US2296861A (en) * 1940-08-08 1942-09-29 Edward B Fallon Glue applicator
FR1285409A (fr) * 1961-01-13 1962-02-23 Kodak Pathe Nouvelle machine de traitement photographique semi-humide
US3104603A (en) * 1961-02-23 1963-09-24 Photo Entwicklungsgerate Ag Method and apparatus for wetting sheets of photographic foil material

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3453138A (en) * 1966-07-27 1969-07-01 Polaroid Corp Photographic processing apparatus and method
US3774574A (en) * 1970-12-10 1973-11-27 Fuji Photo Film Co Ltd Development device for electrophotography
US3783827A (en) * 1970-12-30 1974-01-08 Fuji Photo Film Co Ltd Liquid development apparatus for electrophotography
US3830199A (en) * 1971-03-24 1974-08-20 Ricoh Kk Device for developing an electrostatic image with a developing fluid
US4142194A (en) * 1976-02-09 1979-02-27 E. I. Du Pont De Nemours And Company Web processor
US4294533A (en) * 1978-03-23 1981-10-13 E. I. Du Pont De Nemours And Company Apparatus for pre-conditioning film
US5752121A (en) * 1995-09-27 1998-05-12 Eastman Kodak Company Photographic processing apparatus
EP0908770A1 (de) * 1997-10-09 1999-04-14 Eastman Kodak Company Verarbeitung von photographischem Material
US6161968A (en) * 1997-10-09 2000-12-19 Eastman Kodak Company Processing photographic material

Also Published As

Publication number Publication date
DE1265581B (de) 1968-04-04

Similar Documents

Publication Publication Date Title
US3299791A (en) Device for developing copying paper
US3169887A (en) Electrophotographic developing apparatus
US3363530A (en) Apparatus for processing film by means of a porous web solution applicator
GB1493170A (en) Apparatus for developing a travelling photographic emulsion carrier
US3081687A (en) Apparatus for rapid development of photographic film
US2945760A (en) Photographic processing method
US3511160A (en) Photographic processing device
US2913973A (en) Photographic material conveying apparatus
US1057712A (en) Apparatus for developing photographs.
US3104603A (en) Method and apparatus for wetting sheets of photographic foil material
US3068774A (en) Photographic device for treating photographic sheet materials with a liquid
US3216342A (en) Photographic processor
US3336853A (en) Apparatus for treating sheet-form materials
GB1393558A (en) Method of and apparatus for developing photosensitive material
ES318091A1 (es) Procedimiento y dispositivo correspondiente para el tratamiento de materias textiles en fibras sueltas
US2140438A (en) Film developing method
US3072037A (en) Continuous film processing apparatus
US2966108A (en) Devices for developing photographic coated carriers
US3647596A (en) Apparatus for wet treatment of films or the like
US4121237A (en) Method and apparatus for processing photographic film
US3461787A (en) Machine for developing strip photographic film
US3345927A (en) Apparatus for rapid development of photographic film
US3735689A (en) Roller tray photographic processing apparatus
US2685831A (en) Developing machine
US3577334A (en) Apparatus for electrolytic recovery of a metal from a solution