US3593640A - Photographic processing apparatus with spray means - Google Patents

Photographic processing apparatus with spray means Download PDF

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Publication number
US3593640A
US3593640A US769613A US3593640DA US3593640A US 3593640 A US3593640 A US 3593640A US 769613 A US769613 A US 769613A US 3593640D A US3593640D A US 3593640DA US 3593640 A US3593640 A US 3593640A
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compartments
path
transport
apparatus defined
bar
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US769613A
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English (en)
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Kurt Gall
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    • 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
    • G03D5/04—Liquid processing apparatus in which no immersion is effected; Washing apparatus in which no immersion is effected using liquid sprays

Definitions

  • This spray device has two banks of nozzles which spray film-processing liquids on the film or plate suspended by the transport mechanism; the latter consists of a bar to which the film is clamped and which is pulled along a horizontal guide by a respective endless conveyor and is picked up by the next conveyor. Doors are provided between the compartments to prevent passage of film-processing liquids or light therethrough.
  • My invention relates to an apparatus for processing photographic material, in particular photographic material having a plate or sheet format.
  • Film-processing apparatuses which have a plurality of compartments containing film-processing liquid and sealed against light. These liquids are generally held in a simple bath or basin and the film is passed through them in a horizontal orientation.
  • sheet or plate film or prints are secured to a bar and these bars with the film are dipped in the baths one after another by a transport mechanism.
  • the mechanism must lower the film and raise it, in addition to accommodating the normal conveying motion or translation between baths.
  • Such constant up-and-down movement necessitates a very' complicated and expensive transport mechanism.
  • the film travels through a series of processing compartments which are more or less independent from one another.
  • Each of these compartments has its own spray arrangement and its own transport mechanism.
  • the spray arrangement comprises a bank of nozzles on each side of the path which are supplied with liquid from a pump, preferably in pulses.
  • a reservoir in the bottom of each compartment collects this liquid for recirculation by the respective pump.
  • This transport mechanism moves the bar and film forward and even can make them oscillate back and forth slightly when spraying is being carried out.
  • the successive transport conveyors thus engage the bar at the completion of each preceding cycle and draw the photographic material through the next compartment.
  • a particularly worthwhile feature of my invention is that an unlimited number of compartments can be coupled together or;horizontally stacked to process any film in any manner, be it color or black-and-white, and with as many processing liquids as desired. In addition different times can be established for each process with little or no difficulty. The mere'resetting of a single knob changes one processing time regardless of the others.
  • FIG. I is a side view, partly in section, of the apparatus according to my invention.
  • FIG. 2 is a view seen in the direction of arrow ll of FIG. 1;
  • FIG. 3 is a view according to line IIl-III of FIG. 1;
  • FIG. 4 is an expanded, sectional view of the machine as seen in FIG. I;
  • FIG. 5 is a section taken along line V-V of FIG. 4;
  • FIG. 6 is a detail of a second embodiment of my invention.
  • FIG. 7 is a section taken along line VII-VII of FIG. 4.
  • FIG. 8 is a a schematic view of a control system adapted to effect the successive process steps in a machine in accordance with the present invention.
  • compartments 1, 2, 3 and 4 form the apparatus, according to my invention, as shown in FIG. I, although substantially any number of such identical components can be horizontally stacked to provide a corresponding number of treatment stages.
  • Each compartment is divided by a wall 5 into a spray chamber 6 and a pump chamber 7.
  • a spray arrangement 8 in the upper half of each spray chamber 6 receives the treatment liquid from the respective reservoir 18 forming the lower part of each compartment.
  • the spray arrangements 8 each consists of two banks 9 0f pipes 10 with nozzles I] trained on the transport path, which lies in a vertical median plane of the device (FIG. 5); these nozzles 11 are vertically staggered from pipe to pipe as is best seen in FIG. 4 so that the spacing of the nozzles on the last pipe (in the direction of film travel) is greater than that of the first pipe.
  • the pipes 10 meet at two pipes or manifolds 12 which are connected over a line 13 with a pump 15.
  • a filter 14 is provided in this pipe 13 to cleanse the processing liquid passing therethrough.
  • Four electric motors l6a-d (only two shown in FIG. 1) power these pumps 15.
  • a motor 16e can be mounted on rollers 16f rolling on a base 16g.
  • two telescoping pipes 13a and 13b here serve to connect the pump 15 to the spray arrangement 8.
  • the pipe 13b passes through a slot 5b in the wall 5 and is sealed thereagainst by a bellows 5b.
  • up-and-down and back-and-forth adjustment is permitted for the arrangement 8, thereby positioning the nozzle levels with respect to the size of the photographic materials and varying the distance between the film and the nozzles.
  • This movement of the banks 9 up and down and towards and away from each other is thus useful to accommodate different sizes and types of film.
  • the pump 15 draws film-processing liquid in through the outlet 17 of the reservoir 18.
  • a stand pipe 19 of adjustable height is arranged in this reservoir 18 and communicates with a common drain pipe 20 for all compartments 1-4 to form an overflow-control arrangement for the liquid level in the compartment.
  • a drain valve 23 connected to a bottom drain 22 can completely empty this reservoir 18 into the pipe 20 if desired.
  • each pipe 13 can be made of transparent material to allow for visual monitoring of the condition of the liquid therein.
  • a cooling coil 21 connected to a refrigeration unit 56 is also provided in the reservoir 18. This serves to keep the temperature of the processing liquid down since film-developing processes are quite heat sensitive and a certain amount of heat is inevitably generated in the apparatus. It is also helpful not to enclose completely the pump chamber 7, thereby cutting down the generation of heat or facilitating dissipation thereof since there is no light danger here.
  • doors 27 are provided, to close these openings 25 while processing is being carried out.
  • Switches 54a-e cooperate with these doors 27 to control the processing.
  • the door 27 is hinged on a pin 27b around which a small torsion spring 27a is wound to urge this door closed.
  • a further compartment 33 houses electrical connections 34 which couple each compartment 1-4 with its neighbor.
  • Each chamber 31 is provided with a transport mechanism 35. These mechanisms 35 are driven by electric motors 37a--d (only two visible in FIGS. 1 and 4). Each motor drives a chain 36 which is fitted with formations 38, 39 and 40 which can be set anywhere along the chain 36.
  • the actuating formations 38 cooperate with microswitches 3811-11 to control the motors 7 37a, 37b, 370 and 37d, respectively, and the formations 39 and 40 are intended to engage and transport the photographic v material through the apparatus.
  • a piece of photographic material 26 of plate or sheet rectangular format is held by clamps 44 on a bar 43.
  • An upper edge 45 of this bar '43 is formed with notches 46 adapted to receive the engaging formations 39 and 40 on the chain 36.
  • a leading-end projection 50 contacts and pushes the doors 27 open' as the bar 43 is' transported through the apparatus in a transport direction indicated by an arrow v47. In this way the sheet 26 never is touched by anything other than the processing liquids'and the clamps 44.
  • the cross section of the bar 43 (see FIGS. 2 and3) is such that it fits the guide slot 42 exactly and prevents liquid from getting up into the transport .mechanism 35 during processing.
  • FIG. 2 shows a control panel 48 of my apparatus.
  • Control instruments 49 control all the functions of all of the compartments 1-4.
  • Timers 58, 59, 60 and 61 with respective pilot lights 58a, 59a and60a (no pilot being necessary for the last compartment) control the length of the processing carried out ineach compartment 1-4.
  • a general on-ofi switch 52 and a start switch 57 are also provided.
  • FIG. 8 shows a possible control circuit for my apparatus.
  • the door switches 54a-e between the compartments are connected between a source 69 and four bistable multivibrators or flip-flops 68a-d as shown in Basic Theory and Application of Transistors, (Army Technical Manual, 1 l-690, Washington DC, 195. which each has two outputs, an an output signalling that the respective compartment is occupied, and a U output showing that it is unoccupied.
  • the a outputs are connected to the timers 58-61 and, according to their settings through contacts 58b59bf60B and 61b controlled thereby to the pumps 16a-d through-pulsegenerators 62a- -d which' makes for a pulsating spray.
  • the oscillators 63ad and actuators 64a-d can work as a function of the switch 380 and the formations 38 to properly reciprocate and index the bar 43.
  • the motors 37a-d are actuated through the respective actuators 64a-d to advance the bar 43 to -a predetermined distance set on one of the formations 38.
  • Respective and gates 66ac and 67B--d prevent advancing of 60 the film 26 into the next compartment before termination of the processing therein.
  • My apparatus is used as follows:
  • a photographic film'or plate 26 is clamped on the bar 43 and the end of this is inserted in the apparatus. This is of course done in a dark room or in some similarly darkened conditions.
  • the timers 58-61 are set according to the lengths of the separate processing steps to be carried out. Four stages are shown here for sake of illustration, although fewer or more are entirely possible. For that matter, the timers for any compartment can simply be left at zero if it is not needed, the film 26 will automatically then be advanced through it.
  • the on-off switch 52 is turned on and care should be taken to see that all the proper chemicals and levels are present in the film 26 in front of the noazles 11, which are offset from each other to ensure maximum wetting, to most completely wet and treat the film 26.
  • V 1 The on-off switch 52 is turned on and care should be taken to see that all the proper chemicals and levels are present in the film 26 in front of the noazles 11, which are offset from each other to ensure maximum wetting, to most completely wet and treat the film 26.
  • the timer 58 pushes thecontact 58b down thereby stopping the pumping and oscillating. If the next flip-flop 68b indicates through its U output that it is empty, the motors 37a and 37b are actuated through actuators 64a and 64b and through gates 66a, 66b and 67b. This pulls the bar 43 into the next compartment thereby tripping the switch 54b which resets the first flip-flop 68a at U and sets the second flip-flop 68b at 0. This starts the whole operation over again in the compartment 2. As the actuators 64a-d are actuated the respective timers 58-61 are reset through a feedback line 65a-d to the illustrated position. Meanwhile another bar 43 can be introduced into the compartment 1, and even the timer setting for this compartment can be reset.
  • the apparatus is extremely adaptable since any number of compartments can be coupled together to treat, for instance; color film.
  • the last compartment can be a simple dryer in which the bottom valve 23 is open at all times and the nozzles 11 simply spray air on the film to dry it.
  • the first compartment which carries the instrument board 48 is the only one which would need adapting with difierent numbers of compartments coupled along behind it.
  • the dimensions of one working embodiment of my apparatus with four compartments are 350 cm. long, 40 cm. wide and 165 cm. high. it weighs some 490 kg. and can process around 30 plates of film measuring 50x60 cm. in an hour.
  • An apparatus for processing photographic material comprising:
  • transport means for conveying said material along said path straight guide extending along said path and through said openings; and 1 respective spray means alongside said path in said compartments for wetting the material with appropriate respective film-processing liquids
  • said transport means comprising respective transport mechanisms in each of said compartments, each including a bar fitting and slidable in said guide, means for attaching said material to the underside of said bar, said bar being of a length such that it is fully receivable in one of said compartments when fitted in said guide, said bar being formed with an upwardly open notch, said notch being engageable by said transport mechanism for advancing same.
  • transport means for conveying said material along said path through said openings and including a substantially straight guide extending along said path and through said openings;
  • said transport means comprising respective transport mechanisms in each of said compartments, each including a bar fitting and slidable in said guide, means for attaching said material to the underside of said bar, said bar being of a length such that it is fully receivable in one of said compartments when fitted in said guide, said transport mechanisms each further comprising a motor and an endless chain driven by said motor, said chain being provided with at least one engaging formation for entraining said bar.
  • said switch means comprises at least one actuating formation on said chain and at least one switch fixed relative to said chain and engageable by said actuating formation.
  • rangements each comprise a pump, a reservoir for storing one of said liquids, noule means for spraying said one of said liquids on said material, and conduit means connecting said reservoir to said pump and said pump to said nozzle means, said reservoir being generally below said nozzle means.
  • nozzle means comprises two banks of nozzles, said banks being mounted on opposite sides of said path with said nozzles directed toward said path.
  • An apparatus for processing photographic material said apparatus corn rising:
  • transport means for conveying said material along said path through said openings

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US769613A 1967-10-24 1968-10-22 Photographic processing apparatus with spray means Expired - Lifetime US3593640A (en)

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Application Number Priority Date Filing Date Title
CH1496067A CH458067A (de) 1967-10-24 1967-10-24 Vorrichtung zum Entwickeln und Nachbehandeln von belichtetem photographischen Entwicklungsgut

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CH (1) CH458067A (de)
DE (1) DE1802533A1 (de)
FR (1) FR1587209A (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3724353A (en) * 1970-10-30 1973-04-03 H Holbert Automatic line traverse and dip film processor
US4176939A (en) * 1976-09-09 1979-12-04 Agfa-Gevaert, A.G. Developing apparatus with contact-free light trap
US4178089A (en) * 1976-12-30 1979-12-11 Spence Bate Photographic developer
US4732173A (en) * 1985-12-20 1988-03-22 Circuit Chemistry Corporation Vertical photoresist developer
FR2652920A1 (fr) * 1989-10-10 1991-04-12 Aramys Industry Sarl Procede de developpement automatique de supports exposes et dispositif pour la mise en óoeuvre de ce procede.
US5448326A (en) * 1992-03-24 1995-09-05 Eastman Kodak Company Photographic processing apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE419199B (sv) * 1977-05-16 1981-07-20 Svecia Silkscreen Maskiner Ab Anordning for framstellning av en stencil

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2279686A (en) * 1941-06-09 1942-04-14 Douglas Aircraft Co Inc Method and apparatus for cleaning and painting
US2805967A (en) * 1953-10-19 1957-09-10 T W Murphy Method and apparatus for cleaning members of an extracting machine
US2853048A (en) * 1956-06-25 1958-09-23 Pennsalt Chemicals Corp Spray washer and applicator
US2961990A (en) * 1957-10-04 1960-11-29 Allen Bradley Co Apparatus for the automatic spraying of coatings on objects
DE1133244B (de) * 1960-04-13 1962-07-12 Adox Fotowerke Dr C Schleussne Vorrichtung zum Entwickeln fotografischer Filme
US3144030A (en) * 1963-08-30 1964-08-11 Joseph J Donovan Automatic film developing apparatus
US3343472A (en) * 1965-01-21 1967-09-26 Rosenberg Philip Photographic processing machine
US3356061A (en) * 1965-03-11 1967-12-05 Gyromat Corp Paint spray control system
US3444839A (en) * 1965-12-27 1969-05-20 Ibm Automatic spray painting machine

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2279686A (en) * 1941-06-09 1942-04-14 Douglas Aircraft Co Inc Method and apparatus for cleaning and painting
US2805967A (en) * 1953-10-19 1957-09-10 T W Murphy Method and apparatus for cleaning members of an extracting machine
US2853048A (en) * 1956-06-25 1958-09-23 Pennsalt Chemicals Corp Spray washer and applicator
US2961990A (en) * 1957-10-04 1960-11-29 Allen Bradley Co Apparatus for the automatic spraying of coatings on objects
DE1133244B (de) * 1960-04-13 1962-07-12 Adox Fotowerke Dr C Schleussne Vorrichtung zum Entwickeln fotografischer Filme
US3144030A (en) * 1963-08-30 1964-08-11 Joseph J Donovan Automatic film developing apparatus
US3343472A (en) * 1965-01-21 1967-09-26 Rosenberg Philip Photographic processing machine
US3356061A (en) * 1965-03-11 1967-12-05 Gyromat Corp Paint spray control system
US3444839A (en) * 1965-12-27 1969-05-20 Ibm Automatic spray painting machine

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3724353A (en) * 1970-10-30 1973-04-03 H Holbert Automatic line traverse and dip film processor
US4176939A (en) * 1976-09-09 1979-12-04 Agfa-Gevaert, A.G. Developing apparatus with contact-free light trap
US4178089A (en) * 1976-12-30 1979-12-11 Spence Bate Photographic developer
US4732173A (en) * 1985-12-20 1988-03-22 Circuit Chemistry Corporation Vertical photoresist developer
FR2652920A1 (fr) * 1989-10-10 1991-04-12 Aramys Industry Sarl Procede de developpement automatique de supports exposes et dispositif pour la mise en óoeuvre de ce procede.
US5448326A (en) * 1992-03-24 1995-09-05 Eastman Kodak Company Photographic processing apparatus

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Publication number Publication date
FR1587209A (de) 1970-03-13
CH458067A (de) 1968-06-15
DE1802533A1 (de) 1969-06-19

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